Ong Long Ong

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    I.TRCH YEU :

    1. Muc ch th nghiem:

    - Lam quen vi thiet b truyen nhiet dang ong long ong,cac

    dung cu o nhiet o va lu lng lu chat.- Xac nh he so truyen nhiet trong qua trnh truyen nhiet

    gia hai dong lanh nong c ngan cach bi vach ngan kim loai cac che o chay khac nhau.

    - Thiet lap can bang nhiet lng.2. Tien hanh th nghiem :

    Tien hanh cac th nghiem vi cac loai ong khac nhau viche o dong chay khac nhau. Vi moi loai ong, ta co nh lulng dong nong o nhiet o cua no, roi thay oi lu lng dong

    lanh, ng vi moi gia tr cua lu lng ta o nhiet o cua chung.3. Ket qua :Vi moi th nghiem, ta o lu lng va nhiet o cua dong

    nong va dong lanh, t o tnh c nhiet lng trao oi, ton thatnhiet. Xac nh c cac chuan so Re, Nu, Pr, tnh he so truyennhiet dai theo thc nghiem va theo ly thuyet, dng o th K1, K1*

    theo Re.II. LY THUYET TH NGHIEM :

    Truyen nhiet trong thiet b dang ong long ong la s truyen

    nhiet phc tap gia hai lu chat e ngan cach. Phong thctruyen nhiet:nhiet oi lu t vach ngan en lu chat (ngc lai)va dan nhiet qua thanh ong kim loai.

    Phng trnh can bang nhiet lng cho hai dong lu chatQ G C t t G C t t V V R V = = 1 1 1 2 2 2 2 2( ) ( ) , ( W)

    G G1 2, : Lu lng dong nong va dong lanh (kg/s)

    C C1 2, : Nhiet dung rieng cua lu chat (J/kg.o)

    t tV V1 2, : Nhiet o vao cua dong nong ,lanh ( 0C)

    t tR R1 2, : Nhiet o ra cua dong nong ,lanh ( 0C)

    Qua trnh truyen nhiet c bieu dien bi phngtrnh:

    Q K t LL= . .log

    Vi L: chieu dai ong, m

    KL : He so truyen nhiet dai, W/mK.

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673tlog : chenh lech nhiet o trung bnh logarit,K

    tt t

    t

    t

    l n

    l

    n

    log

    ln

    =

    He so truyen nhiet dai ly thuyet:

    +++

    =

    b

    b

    ngtr

    ng

    tr

    L

    d

    r

    dd

    d

    d

    K

    21

    1ln.

    2

    11

    d dng t, : ng knh ngoai va ng knh trong cua ong truyen

    nhiet ,m

    : he so dan nhiet cua cua kim loai lam ong,W/mK.db : ng knh lp ban,m.

    rb: nhiet tr cua lp cau.

    He so cap nhiet 1, 2 gia vach ngan va cac donglu chat c tnh t chuan so Nu:

    Ri

    t

    nmANu .

    Pr

    Pr.Pr.Re.

    25,0

    =

    Cac he so A, n, m, i, R la cac he so thc nghiem, tuy thuocvao cac yeu to sau:

    Che o chay cua cac dong lu chat

    S tng quan gia dong chay va be mat truyen nhiet

    ac iem be mat truyen nhiet( o nham, hnh dang...)

    III. DUNG CU, THIET B VA PHNG PHAP TH NGHIEM:1.Thiet b th nghiem:

    He thong thiet b th nghiem (xem hnh ) co 3 kieu ket cau be

    mat truyen nhiet nh sau:

    - Kieu A : loai ong nhun ( ong an hoi c )

    - Kieu B : loai ong long ong ma lu chat chay ngang matngoai cua ong trong, hai dong lu chat co phng vuong goc nhau.

    - Kieu C (C1,C2,C3): loai ong long ong n gian, lu chat chaydoc mat cua ong trong ,hai dong chay co phng song song nhau.

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    Kch thc ong :

    Kieu

    ong

    Ongtrong(mm)

    Ongngoai(mm)

    Chieudai(mm)

    Ongkieu B

    14/16 26/28 925

    Ongkieu C

    14/16 26/28 1000

    Phng phap th nghiem:

    Sau khi chuan b va lam quen vi thiet b ta can o cac ailng : lu lng dong nong, dong lanh, nhiet o vao, ra cua cac

    dong nong va dong lanh: t t t t V R V R1 1 2 2, , , .2.Trnh t th nghiem :

    - Cap nc ay vao noi un (khi nc bat au chay quaong chay tran)

    - ong cau dao R1, R2, R3, va R4 e un nc.- Khi noi un at nhiet o (nc bat au soi), bat au

    tien hanh th nghiem.- M van V1, V2, V3, V6, va V7. V5 luon ong.- ong cau dao P1 e khi ong bm, bm dong nong t

    noi un vao thiet b th nghiem.- Muon khao sat loai ong nao ta m van chan tng ng

    au vao dong nong( VN1, VN2, VN3, VN4, VN5) va au ra dong lanh(VL2, VL3, VL4, VL5) cua ong o, khoa tat ca cac van khac lai.

    - Dung van V3 e ieu chnh lu lng dong nong( hoan lumot phan dong nong ve lai noi un).

    - Dung van II e co nh lu lng dong nong, sau o oichieu van II e o lu lng dong lanh( ng vi moi lu lng dongnong o 4 gia tr lu lng dong lanh).

    - ieu chnh lu lng cac dong e thay oi che o chayva lap lai th nghiem vi thong so on nh mi.

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    T

    1N

    5N

    3N 9

    N11N

    6L

    1N

    1N

    4N

    6N

    8N

    10N

    2L

    3L4

    L5L

    3S

    4S

    Vn1

    Vn2

    Vn3

    Vn4

    Vn5

    VL2

    VL3

    VL4

    VL5

    V7

    V6

    V5

    V1

    V3

    V4

    Hienthnhieto

    1S

    2S

    1L

    I

    II

    III

    IV

    R1,R

    2,R

    3,R

    4:Caudaoientr

    K1:vtrbematong

    cano

    K2:vtrcanocuad

    onglanh

    N:nong(12iem).L

    :lanh(6iem).S:bemat(4iem)

    I:vano

    ichieuch

    uye

    nongcuadonglanh

    II:vano

    ichieucua

    donglanhhoacnonge

    olulng

    (Hnhvemotatr

    nghpdongnongvalanh

    chuye

    nongng

    cchieu,

    olulngdongnong)

    audonhieto

    onghoonhieto

    III,IV:vano

    ichieuhoanluncnonghoacxadonglanh

    ncthaii

    hngchaycuanctaicac

    vano

    ichieu

    Nc

    bo

    sung

    Dongnong

    Donglanh

    Nong

    Lanh

    P1:caudaobmncnong

    K3:vtrcanocuadongnong

    C4

    C3C

    2C1

    BA

    V2

    R1

    R2

    R3

    R4

    P1

    K1

    K2

    K3

    Sohethongthnghiemtruyennhietonglongong

    BANGIEN

    BANGCHVTRO

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    BANG GIA TR

    Nhiet o (oC) Ong C

    STTG1

    (ft3/ph)G2

    (ft3/ph) t1V t1R t2V t2R1

    0.2

    0.2 70.6 65.2 43.7 45.6

    2 0.3 70.3 64.3 39.3 42.1

    3 0.4 69.5 62.3 39.3 40.04 0.5 69 61.3 36.8 39.1

    5

    0.3

    0.2 69.8 65.7 43.3 45.1

    6 0.3 69.5 64.8 41.4 43

    7 0.4 68.5 63.2 40.3 41.5

    8 0.5 67.5 61.6 37.7 40.49

    0.35

    0.2 77.6 73.8 44.3 49.7

    10 0.3 76.6 71.8 42.8 46.0

    11 0.4 75.3 69.6 42.0 44.012 0.5 73.0 66.9 39.5 41.8

    13

    0.38

    0.2 74.9 71 46.0 49.5

    14 0.3 72.8 68.8 43.2 45.0

    15 0.4 72.0 67.0 41.6 43.2

    16 0.5 69.3 64.3 39.7 41.0

    Nhiet o (oC) Ong BSTT G1 G2 t1V t1R t2V t2R

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    (ft3/ph) (ft3/ph)1

    0.2

    0.2 67.4 62.8 42.5 43.6

    2 0.3 67.7 62.5 41.5 41.7

    3 0.4 67.9 62.4 39.7 40.8

    4 0.5 67.5 62.4 39.0 41.9

    5

    0.3

    0.2 69.6 66.0 44.3 45.7

    6 0.3 69.6 45.4 42.5 43.0

    7 0.4 68.6 64.7 41.1 41.98 0.5 67.4 63 39.7 40.0

    9

    0.35

    0.2 80.5 77.0 47.3 50.4

    10 0.3 79.2 74.8 45.7 48.9

    11 0.4 76.1 72.0 43.0 43.5

    12 0.5 74.2 70.5 42.0 41.8

    13

    0.4

    0.2 73.8 70.8 45.2 47.5

    14 0.3 72.8 69.8 43.6 44.7

    15 0.4 70.3 67.1 40.1 41.716 0.5 69.0 65.8 40.6 40.3

    Chu thch:1: dong nong.2: dong lanh.v: dong vao.r: dong ra.

    KET QUA TNH ONG B:

    Nhiet lng:

    DONG NONG ONG BSTT G1,106 G2,106 t1tb 1 G1 Cp1 t

    1

    Q1 Q

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    (m3/s) (m3/s) (oC) (kg/m3) (kg/s)(j/kg.o

    )(oC) (w) (w

    1

    94.3

    94.365.1

    0 980.450.092

    5 4185.1 4.6 1780.76 1351

    2 141.5 65.10 979.35 0.0925 4185.1 5.2 2013.03 1895

    3 188.765.1

    5 980.050.092

    5 4185.15 5.5 2129.20 1268

    4 235.864.9

    5 980.430.092

    5 4184.95 5.1 1974.25 -860

    5

    141.5

    94.367.8

    0 979.130.138

    6 4187.8 3.6 2089.54 1543

    6 141.567.5

    0 979.430.138

    6 4187.5 4.2 2437.63 2144

    7 188.766.6

    5 980.080.138

    6 4186.65 3.9 2263.05 1637

    8 235.865.2

    0 980.730.138

    6 4185.2 4.4 2552.30 2523

    9

    165.1

    94.378.7

    5 972.750.169

    3 4190 3.5 2482.05 1274

    10 141.577.0

    0 973.800.169

    3 4190 4.4 3120.29 1247

    11 188.774.0

    5 975.570.169

    3 4190 4.1 2907.55 2516

    12 235.872.3

    5 976.590.169

    3 4190 3.7 2623.88 2819

    13

    188.7

    94.372.3

    0 976.620.184

    5 4190 3 2319.54 1425

    14 141.571.3

    0 977.220.184

    5 4190 3 2319.54 1676

    15 188.768.7

    0978.65

    0.1845 4188.7 3.2 2473.41 1223

    16 235.867.4

    0 979.3

    0.1845 4187.4 3.2 2472.64 2765

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    DONG LANH ONG B

    STT

    G1,106 G2,106 t2tb 2 G2 Cp2

    t

    2 Q2

    (m3/s) (m3/s) (oC) (kg/m3) (kg/s)(j/kg.o

    )(oC) (w)

    1

    94.3

    94.343.0

    5 990.170.093

    4 4180 1.1 429.33

    2 141.541.6

    0 991.040.140

    2 4180 0.2 117.23

    3 188.740.2

    5 991.850.187

    2 4180 1.1 860.57

    4 235.840.4

    5 991.730.233

    8 4180 2.9 2834.73

    5

    141.5

    94.345.0

    0 989.000.093

    3 4180 1.4 545.77

    6 141.542.7

    5 990.350.140

    1 4180 0.5 292.88

    7 188.741.5

    0 991.100.187

    0 4180 0.8 625.40

    8 235.8 39.85 99.06 0.0234 4180 0.3 29.29

    9

    165.1

    94.346.3

    5 988.190.093

    2 4180 3.1 1207.51

    10 141.544.1

    5 989.510.140

    0 4180 3.2 1872.85

    11 188.740.9

    0 991.460.187

    1 4180 0.5 391.01

    12 235.840.4

    5 991.730.233

    8 4180 -0.2 -195.50

    13188.7

    94.348.8

    5 986.690.093

    0 4180 2.3 894.53

    14 141.547.3

    0 987.620.139

    7 4180 1.1 642.56

    15 188.743.2

    5 990.050.186

    8 4180 1.6 1249.4716 235.8 41.9 990.86 0.233 4180 -0.3 -292.99

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    0 6

    NH tlog

    t1V t1R t2V t2R

    tl=t1v-t2r

    tn=t1r-t2v

    tlog

    (oC) (oC) (oC) (oC) (oC) (oC) (oC)

    67.4 62.8 42.5 43.6 23.8 20.3 22.0067.7 62.5 41.5 41.7 26 21 23.4167.9 62.4 39.7 40.8 27.1 22.7 24.8467.5 62.4 39 41.9 25.6 23.4 24.4869.6 66 44.3 45.7 23.9 21.7 22.7869.6 65.4 42.5 43 26.6 22.9 24.70

    68.6 64.7 41.1 41.9 26.7 23.6 25.1267.4 63 39.7 40 27.4 23.3 25.2980.5 77 47.3 50.4 30.1 29.7 29.90

    79.2 74.8 45.7 48.9 30.3 29.1 29.7076.1 72 43 43.5 32.6 29 30.7674.2 70.5 42 41.8 32.4 28.5 30.4173.8 70.8 45.2 47.5 26.3 25.6 25.9572.8 69.8 43.6 44.7 28.1 26.2 27.1470.3 67.1 40.1 41.7 28.6 27 27.7969 65.8 40.6 40.3 28.7 25.2 26.91

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    TNH HE SO TRUYEN NHIET DAI THC NGIEMK

    STT

    G1,106

    G2,106 Q2 Q1 Q

    tlog K1

    (m3/s) (m3/s) (w) (w) (w) (oC) W/mK

    1

    94.3

    94.3 429.33 1780.76 1351.43 22.00 21.0942 141.5 117.23 2013.03 1895.80 23.41 5.4143 188.7 860.57 2129.20 1268.62 24.84 37.4614 235.8 2834.73 1974.25 -860.48 24.48 125.1695

    141.5

    94.3 545.77 2089.54 1543.77 22.78 25.8986 141.5 292.88 2437.63 2144.75 24.70 12.8177 188.7 625.40 2263.05 1637.66 25.12 26.9178 235.8 29.29 2552.30 2523.01 25.29 1.2529

    165.1

    94.3 1207.51 2482.05 1274.54 29.90 43.66010 141.5 1872.85 3120.29 1247.44 29.70 68.18111 188.7 391.01 2907.55 2516.53 30.76 13.74012 235.8

    -195.50 2623.88 2819.38 30.41 -6.95013

    188.7

    94.3 894.53 2319.54 1425.01 25.95 37.26914 141.5 642.56 2319.54 1676.98 27.14 25.59715 188.7 1249.47 2473.41 1223.94 27.79 48.60316 235.8 -292.99 2472.64 2765.63 26.91 -11.770

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    CHUAN SO RE DONG NONG ONG B

    t1V t1R t1tb 1 1.106 d1trong 1 Re1

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2) m m/s

    67.4 62.8 65.10980.4

    5 437.36 0.014 0.613 19235.36

    67.7 62.5 65.10980.4

    5 437.36 0.014 0.613 19235.36

    67.9 62.4 65.15980.4

    3 437.04 0.014 0.613 19248.96

    67.5 62.4 64.95 980.53 438.32 0.014 0.613 19194.7

    69.6 66 67.80979.1

    0 420.08 0.014 0.920 30009.16

    69.6 65.4 67.50979.2

    5 422 0.014 0.920 29877.2

    68.6 64.7 66.65979.6

    8 427.44 0.014 0.920 29509.76

    67.4 63 65.20980.4

    0 436.72 0.014 0.920 28904.07

    80.5 77 78.95972.6

    3 360.36 0.014 1.073 40547.72

    79.2 74.8 77.00973.8

    0 370.30 0.014 1.073 39506.22

    76.1 72 74.05975.5

    7 385.35 0.014 1.073 38032.7874.2 70.5 72.35 976.5 394.02 0.014 1.073 37234.79

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    9

    73.8 70.8 72.30976.6

    2 394.27 0.014 1.226 42531.05

    72.8 69.8 71.30

    977.2

    2 399.37 0.014 1.226 42013.7270.3 67.1 68.70 978.65 414.32 0.014 1.226 40556.9969 65.8 67.40 979.3 422.64 0.014 1.226 39785

    CHUAN SO RE DONG LANH ONG B

    t2V t2R t2tb 2 2.106

    d2t 2 Re2

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2) m m/s

    42.5 43.6 43.05

    990.17 624.06 0.016 0.286 7261.00

    41.5 41.7 41.6

    991.04 639.72 0.016 0.429 10637.97

    39.7 40.8 40.25

    991.85 654.3 0.016 0.572 13881.68

    39 41.9 40.45

    991.7

    3 652.14 0.016 0.715 17401.93

    44.3 45.7 45

    989.00 603 0.016 0.286 7505.71

    42.5 43 42.75

    990.35 627.3 0.016 0.429 10841.04

    41.1 41.9 41.5

    991.10 640.8 0.016 0.572 14163.41

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    39.7 40 39.85

    992.09 673.91 0.016 0.715 16845.89

    47.3 50.4 46.35

    988.19 588.42 0.016 0.286 7685.39

    45.7 48.9 44.15 989.51 612.18 0.016 0.429 11099.38

    43 43.5 40.9

    991.46 647.28 0.016 0.572 14026.71

    42 41.8 40.45

    991.73 652.14 0.016 0.715 17401.93

    45.2 47.5 48.85

    986.69 561.42 0.016 0.286 8042.77

    43.6 44.7 47.3

    987.62 578.16 0.016 0.429 11730.04

    40.1 41.7 43.25990.0

    5 621.9 0.016 0.572 14578.39

    40.6 40.3 41.9

    990.86 636.48 0.016 0.715 17814.45

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    CHUAN SO Nu DONG NONG ONG B

    STT Re1 tlog t1 tt-1 1 1.106 Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2)

    (Ns/m2)

    (kg/m3)

    1 19235.36 22.00 5.48 59.62 980.45 437.36 2.753 473.016 983.191 2.991 133.828

    2 19235.36 23.41 7.62 57.48 980.45 437.36 2.753 489.944 984.262 3.111 132.5163 19248.96 24.84 9.57 55.58 980.43 437.04 2.751 504.901 985.209 3.218 131.3914 19194.70 24.48 10.69 54.26 980.53 438.32 2.760 515.354 985.871 3.294 130.6645 30009.16 22.78 4.16 63.64 979.10 420.08 2.639 446.691 981.179 2.815 172.7686 29877.20 24.70 6.04 61.46 979.25 422.00 2.652 460.687 982.272 2.908 171.4357 29509.76 25.12 7.50 59.15 979.68 427.44 2.688 476.694 983.424 3.017 170.0368 28904.07 25.29 8.58 56.62 980.40 436.72 2.749 496.682 984.689 3.159 168.3819 40547.72 29.90 4.45 74.50 972.63 360.36 2.236 383.027 975.297 2.390 194.234

    10 39506.22 29.70 6.07 70.93 973.80 370.30 2.303 401.280 977.445 2.514 192.35511 38032.78 30.76 7.75 66.30 975.57 385.35 2.405 429.682 980.220 2.702 189.79012 37234.79 30.41 9.05 63.30 976.59 394.02 2.465 448.868 982.019 2.827 188.129

    13 42531.05 25.95 3.81 68.49 976.62 394.27 2.466 415.655 978.905 2.610 207.97014 42013.72 27.14 5.49 65.81 977.22 399.37 2.501 432.795 980.512 2.722 206.10815 40556.99 27.79 6.82 61.88 978.65 414.32 2.601 457.967 982.060 2.890 203.77516 39785.00 26.91 7.70 59.70 979.30 422.64 2.656 472.408 983.152 2.987 202.419

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    CHUAN SO Nu DONG LANH ONG B

    STT Re2 tlog t2 tt-2 2 2.106

    Pr2.

    t-2.106 2 Prt-2 Nu2

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2)

    (Ns/m2)

    (kg/m3)

    1 7261.00 22.00 14.52 57.572 990.170 624.060 4.087 489.182 984.214 3.106 94.767

    2 10637.97 23.41 13.79 55.387 991.040 639.720 4.201 506.446 985.307 3.230 120.0903 13881.68 24.84 13.27 53.517 991.850 654.300 4.309 521.214 986.241 3.336 141.9824 17401.93 24.48 11.79 52.242 991.730 652.140 4.293 531.285 986.879 3.409 161.3455 7505.71 22.78 16.62 61.624 989.000 603.000 3.934 459.604 982.188 2.901 96.0006 10841.04 10.69 16.66 59.409 990.350 627.300 4.110 447.382 980.355 2.839 123.7247 14163.41 25.12 15.62 57.121 991.100 640.800 4.209 492.746 984.440 3.131 143.8688 16845.89 25.29 14.72 54.567 992.090 673.910 4.442 512.919 985.716 3.276 163.2819 7685.39 29.90 23.45 69.804 988.190 588.420 3.828 407.254 978.098 2.555 98.806

    10 11099.38 29.70 21.62 65.771 989.510 612.180 4.000 433.063 980.114 2.725 124.62211 14026.71 30.76 21.01 61.915 991.460 647.280 4.257 457.747 982.043 2.888 146.99112 17401.93 30.41 19.36 59.810 991.730 652.140 4.293 471.499 983.095 2.980 166.864

    13 8042.77 25.95 20.14 68.990 986.690 561.420 3.635 412.465 978.505 2.589 97.94714 11730.04 27.14 19.65 66.952 987.620 578.160 3.755 425.506 979.524 2.675 124.35315 14578.39 27.79 18.97 62.223 990.050 621.900 4.071 455.776 981.889 2.875 146.42316 17814.45 26.91 17.21 59.107 990.860 636.480 4.178 477.053 983.446 3.020 165.806

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    HE SO CAP NHIET 1 , 2

    STT 1.10 2d1tron

    g 1 2.10

    2d2td 2

    W/mK m W/m2K W/mK m W/m2K1 66.359 0.014 6343.346 63.827 0.016 3780.4472 66.359 0.014 6281.145 63.624 0.016 4775.3923 66.364 0.014 6228.256 63.435 0.016 5629.164 66.346 0.014 6192.121 63.463 0.016 6399.6515 66.602 0.014 8219.073 64.1 0.016 3845.991

    6 66.575 0.014 8152.344 63.785 0.016 4932.3187 66.499 0.014 8076.526 63.61 0.016 5719.658 66.368 0.014 7982.237 63.376 0.016 6467.5799 67.427 0.014 9354.650 64.289 0.016 3970.0810 67.290 0.014 9245.422 63.981 0.016 4983.38711 67.084 0.014 9094.146 63.526 0.016 5836.08912 66.965 0.014 8998.548 63.463 0.016 6618.54413 66.961 0.014 9947.050 64.639 0.016 3957.01714 66.891 0.014 9847.680 64.422 0.016 5006.932

    15 66.683 0.014 9705.933 63.855 0.016 5843.64316 66.566 0.014 9624.467 63.666 0.016 6597.627

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    KIEM TRA LAN 1 ONG B

    STT tlog K1 1 2 t1 t2 t1 (1) t2 (1) t1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 22.004 21.094 6343.346 3780.45 5.48 14.52 0.073 0.123 98.67 99.1552 23.411 5.414 6281.145 4775.39 7.62 13.79 0.020 0.027 99.74 99.8073 24.835 37.461 6228.256 5629.16 9.57 13.27 0.149 0.165 98.44 98.7544 24.484 125.169 6192.121 6399.65 10.69 11.79 0.495 0.479 95.37 95.9395 22.782 25.898 8219.073 3845.99 4.16 16.62 0.072 0.153 98.27 99.0776 10.694 12.817 8152.344 4932.32 6.04 16.66 0.017 0.028 99.72 99.8337 25.118 26.917 8076.526 5719.65 7.50 15.62 0.084 0.118 98.88 99.2438 25.295 1.252 7982.237 6467.58 8.58 14.72 0.004 0.005 99.95 99.9679 29.900 43.660 9354.650 3970.08 4.45 23.45 0.140 0.329 96.86 98.598

    10 29.696 68.181 9245.422 4983.39 6.07 21.62 0.219 0.406 96.39 98.12111 30.765 13.740 9094.146 5836.09 7.75 21.01 0.046 0.072 99.40 99.65512 30.408 -6.950 8998.548 6618.54 9.05 19.36 -0.023 -0.032 100.26 100.16513 25.948 37.269 9947.050 3957.02 3.81 20.14 0.097 0.244 97.45 98.78714 27.139 25.597 9847.680 5006.93 5.49 19.65 0.071 0.139 98.71 99.29415 27.792 48.603 9705.933 5843.64 6.82 18.97 0.139 0.231 97.96 98.782

    16 26.912 -11.770 9624.467 6597.63 7.70 17.21 -0.033 -0.048 100.43 100.279

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    TNH LAI LAN 1 DONG NONG ONG B

    STT

    Re1

    tlog t1 tt-1 1 1.10

    6Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    )

    (Ns/m2

    )(kg/m3

    ) 1 19235.36 22.00 0.073 65.027 980.450 437.360 2.753 437.828 980.487 2.756 136.590

    2 19235.36 23.41 0.020 65.080 980.450 437.360 2.753 437.489 980.460 2.754 136.6183 19248.96 24.84 0.149 65.001 980.425 437.040 2.751 437.996 980.500 2.757 136.5684 19194.70 24.48 0.495 64.455 980.525 438.320 2.760 441.487 980.772 2.781 136.3175 30009.16 22.78 0.072 67.728 979.100 420.080 2.639 420.539 979.136 2.642 175.5236 29877.20 24.70 0.017 67.483 979.250 422.000 2.652 422.108 979.258 2.653 175.4167 29509.76 25.12 0.084 66.566 979.675 427.440 2.688 427.976 979.717 2.691 174.9638 28904.07 25.29 0.004 65.196 980.400 436.720 2.749 436.745 980.402 2.749 174.3409 40547.72 29.90 0.140 78.810 972.630 360.355 2.236 361.067 972.714 2.241 197.37710 39506.22 29.70 0.219 76.781 973.800 370.300 2.303 371.417 973.931 2.311 196.45911 38032.78 30.76 0.046 74.004 975.570 385.345 2.405 385.582 975.598 2.407 195.34812 37234.79 30.41 -0.023 72.373 976.590 394.015 2.465 393.895 976.576 2.464 194.71813 42531.05 25.95 0.097 72.203 976.620 394.270 2.466 394.766 976.678 2.470 210.85914 42013.72 27.14 0.071 71.229 977.220 399.370 2.501 399.730 977.262 2.504 210.45915 40556.99 27.79 0.139 68.561 978.650 414.320 2.601 415.211 978.720 2.607 209.08216 39785.00 26.91 -0.033 67.433 979.300 422.640 2.656 422.429 979.284 2.655 208.471

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    TNH LAI LAN 1 DONG LANH ONG B

    STT

    Re2

    tlog t2 tt-2 2 2.10

    6Pr2.

    t-2.106 2 Prt-2 Nu2

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    ) (Ns/m2)(kg/m3

    )

    1 7261.00 22.00 0.123 43.173 990.170 624.060 4.087 622.734 990.096 4.077 88.5362 10637.97 23.41 0.027 41.627 991.040 639.720 4.201 639.433 991.024 4.199 112.4603 13881.68 24.84 0.165 40.415 991.850 654.300 4.309 652.515 991.751 4.296 133.2894 17401.93 24.48 0.479 40.929 991.730 652.140 4.293 646.968 991.443 4.255 152.6555 7505.71 22.78 0.153 45.153 989.000 603.000 3.934 601.343 988.908 3.922 89.0286 10841.04 10.69 0.028 42.778 990.350 627.300 4.110 627.000 990.333 4.108 112.8027 14163.41 25.12 0.118 41.618 991.100 640.800 4.209 639.523 991.029 4.200 133.6858 16845.89 25.29 0.005 39.855 992.090 673.910 4.442 659.133 990.087 4.353 152.0859 7685.39 29.90 0.329 46.679 988.190 588.420 3.828 584.869 987.993 3.803 89.45610 11099.38 29.70 0.406 44.556 989.510 612.180 4.000 607.792 989.266 3.968 113.44311 14026.71 30.76 0.072 40.972 991.460 647.280 4.257 646.498 991.417 4.251 133.45112 17401.93 30.41 -0.032 40.418 991.730 652.140 4.293 652.485 991.749 4.295 152.29213 8042.77 25.95 0.244 49.094 986.690 561.420 3.635 558.781 986.543 3.616 90.10114 11730.04 27.14 0.139 47.439 987.620 578.160 3.755 576.662 987.537 3.744 114.33115 14578.39 27.79 0.231 43.481 990.050 621.900 4.071 619.404 989.911 4.053 134.38116 17814.45 26.91 -0.048 41.852 990.860 636.480 4.178 636.998 990.889 4.181 152.847

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    TNH LAI LAN 1 HE SO CAP NHIET

    STT

    1.102 d1trong 1

    2.102d2td 2

    W/mK m W/m2K W/mK m W/m2K1 66.359 0.014 6474.276 63.827 0.016 3531.8512 66.359 0.014 6475.592 63.624 0.016 4471.9873 66.364 0.014 6473.675 63.435 0.016 5284.4764 66.346 0.014 6459.998 63.463 0.016 6054.9565 66.602 0.014 8350.143 64.1 0.016 3566.6846 66.575 0.014 8341.669 63.785 0.016 4496.9187 66.499 0.014 8310.564 63.61 0.016 5314.833

    8 66.368 0.014 8264.697 63.376 0.016 6024.0949 67.427 0.014 9506.049 64.289 0.016 3594.39110 67.290 0.014 9442.657 63.981 0.016 4536.37811 67.084 0.014 9360.466 63.526 0.016 5298.48912 66.965 0.014 9313.710 63.463 0.016 6040.5713 66.961 0.014 10085.228 64.639 0.016 3640.02514 66.891 0.014 10055.580 64.422 0.016 4603.37615 66.683 0.014 9958.729 63.855 0.016 5363.05516 66.566 0.014 9912.190 63.666 0.016 6081.984

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    KIEM TRA LAN 2 ONG B

    STT tlo

    g K1 1 2 t1 (1) t2 (1) t1 (2) t2 (2)t

    1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 22.004 21.094 6474.276 3531.85 0.073 0.123 0.072 0.131 2.02 -7.0392 23.411 5.414 6475.592 4471.99 0.020 0.027 0.020 0.028 3.00 -6.785

    3 24.835 37.461 6473.675 5284.48 0.149 0.165 0.144 0.176 3.79 -6.5234 24.484 125.169 6459.998 6054.96 0.495 0.479 0.474 0.506 4.15 -5.6935 22.782 25.898 8350.143 3566.68 0.072 0.153 0.071 0.165 1.57 -7.8316 10.694 12.817 8341.669 4496.92 0.017 0.028 0.016 0.030 2.27 -9.6827 25.118 26.917 8310.564 5314.83 0.084 0.118 0.081 0.127 2.82 -7.6178 25.295 1.252 8264.697 6024.09 0.004 0.005 0.004 0.005 3.42 -7.3629 29.900 43.660 9506.049 3594.39 0.140 0.329 0.137 0.363 1.59 -10.45210 29.696 68.181 9442.657 4536.38 0.219 0.406 0.214 0.446 2.09 -9.85411 30.765 13.740 9360.466 5298.49 0.046 0.072 0.045 0.080 2.85 -10.14612 30.408 -6.950 9313.71 6040.57 -0.023 -0.032 -0.023 -0.035 3.38 -9.56813 25.948 37.269 10085.23 3640.03 0.097 0.244 0.096 0.266 1.37 -8.709

    14 27.139 25.597 10055.58 4603.38 0.071 0.139 0.069 0.151 2.07 -8.76715 27.792 48.603 9958.729 5363.05 0.139 0.231 0.136 0.252 2.54 -8.96116 26.912 -11.770 9912.19 6081.98 -0.033 -0.048 -0.032 -0.052 2.90 -8.478

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    TNH LAI LAN 2 DONG NONG ONG B

    STT

    Re1

    tlog t1 tt-1 1 1.10

    6Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    )

    (Ns/m2

    )(kg/m3

    ) 1 19235.36 22.00 0.072 65.028 980.450 437.360 2.753 437.819 980.486 2.756 136.5912 19235.36 23.41 0.020 65.080 980.450 437.360 2.753 437.485 980.460 2.754 136.618

    3 19248.96 24.84 0.144 65.006 980.425 437.040 2.751 437.960 980.497 2.757 136.5714 19194.70 24.48 0.474 64.476 980.525 438.320 2.760 441.356 980.762 2.780 136.3275 30009.16 22.78 0.071 67.729 979.100 420.080 2.639 420.532 979.135 2.642 175.5246 29877.20 24.70 0.016 67.484 979.250 422.000 2.652 422.105 979.258 2.653 175.4177 29509.76 25.12 0.081 66.569 979.675 427.440 2.688 427.961 979.716 2.691 174.9658 28904.07 25.29 0.004 65.196 980.400 436.720 2.749 436.745 980.402 2.749 174.3409 40547.72 29.90 0.137 78.813 972.630 360.355 2.236 361.055 972.712 2.241 197.37910 39506.22 29.70 0.214 76.786 973.800 370.300 2.303 371.394 973.929 2.311 196.46211 38032.78 30.76 0.045 74.005 975.570 385.345 2.405 385.575 975.597 2.407 195.34912 37234.79 30.41 -0.023 72.373 976.590 394.015 2.465 393.899 976.576 2.464 194.71713 42531.05 25.95 0.096 72.204 976.620 394.270 2.466 394.759 976.678 2.470 210.86014 42013.72 27.14 0.069 71.231 977.220 399.370 2.501 399.722 977.261 2.504 210.46015 40556.99 27.79 0.136 68.564 978.650 414.320 2.601 415.188 978.718 2.607 209.08516 39785.00 26.91 -0.032 67.432 979.300 422.640 2.656 422.435 979.284 2.655 208.470

    TNH LAI LAN 2 DONG LANH ONG BST Re2 tl t2 tt-2 2 2.106 Pr2. 2 Prt-2 Nu2

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    Tog t-2.106

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    ) (Ns/m2)(kg/m3

    ) 1 7261.00 22.00 0.131 43.181 990.170 624.060 4.087 622.641 990.091 4.076 88.5392 10637.97 23.41 0.028 41.628 991.040 639.720 4.201 639.414 991.023 4.199 112.4613 13881.68 24.84 0.176 40.426 991.850 654.300 4.309 652.399 991.744 4.295 133.2954 17401.93 24.48 0.506 40.956 991.730 652.140 4.293 646.674 991.426 4.253 152.674

    5 7505.71 22.78 0.165 45.165 989.000 603.000 3.934 601.213 988.901 3.921 89.0336 10841.04 10.69 0.030 42.780 990.350 627.300 4.110 626.971 990.332 4.108 112.8037 14163.41 25.12 0.127 41.627 991.100 640.800 4.209 639.426 991.024 4.199 133.6918 16845.89 25.29 0.005 39.855 992.090 673.910 4.442 659.128 992.058 4.344 152.1619 7685.39 29.90 0.363 46.713 988.190 588.420 3.828 584.498 987.972 3.800 89.47210 11099.38 29.70 0.446 44.596 989.510 612.180 4.000 607.360 989.242 3.965 113.46611 14026.71 30.76 0.080 40.980 991.460 647.280 4.257 646.418 991.412 4.251 133.45512 17401.93 30.41 -0.035 40.415 991.730 652.140 4.293 652.518 991.751 4.296 152.29013 8042.77 25.95 0.266 49.116 986.690 561.420 3.635 558.551 986.531 3.614 90.11114 11730.04 27.14 0.151 47.451 987.620 578.160 3.755 576.530 987.529 3.743 114.33815 14578.39 27.79 0.252 43.502 990.050 621.900 4.071 619.180 989.899 4.051 134.394

    16 17814.45 26.91 -0.052 41.848 990.860 636.480 4.178 637.042 990.891 4.182 152.844

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    TNH LAI LAN 2 HE SO CAP NHIET

    STT

    1.102 d1trong 1

    2.102d2td 2

    W/mK m W/m2K W/mK m W/m2K1 66.359 0.014 6474.312 63.827 0.016 3531.9992 66.359 0.014 6475.607 63.624 0.016 4472.0253 66.364 0.014 6473.816 63.435 0.016 5284.7414 66.346 0.014 6460.503 63.463 0.016 6055.7285 66.602 0.014 8350.180 64.1 0.016 3566.8986 66.575 0.014 8341.682 63.785 0.016 4496.9767 66.499 0.014 8310.640 63.61 0.016 5315.058

    8 66.368 0.014 8264.701 63.376 0.016 6027.1039 67.427 0.014 9506.130 64.289 0.016 3595.02210 67.290 0.014 9442.819 63.981 0.016 4537.27511 67.084 0.014 9360.511 63.526 0.016 5298.67112 66.965 0.014 9313.684 63.463 0.016 6040.48513 66.961 0.014 10085.257 64.639 0.016 3640.43714 66.891 0.014 10055.631 64.422 0.016 4603.66615 66.683 0.014 9958.871 63.855 0.016 5363.59416 66.566 0.014 9912.153 63.666 0.016 6081.866

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    KIEM TRA LAN 3 ONG B

    STT

    tlog K1 1 2

    t1(1)

    t2(1)

    t1(2)

    t2(2) t1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 22.004 21.094 6474.312 3531.999 0.072 0.131 0.072 0.131 0.000568 0.0041762 23.411 5.414 6475.607 4472.025 0.020 0.028 0.020 0.028 0.000233 0.000853 24.835 37.461 6473.816 5284.741 0.144 0.176 0.144 0.176 0.002171 0.005002

    4 24.484 125.169 6460.503 6055.728 0.474 0.506 0.474 0.506 0.007811 0.0127435 22.782 25.898 8350.18 3566.898 0.071 0.165 0.071 0.165 0.000449 0.0059876 10.694 12.817 8341.682 4496.976 0.016 0.030 0.016 0.030 0.000152 0.0012927 25.118 26.917 8310.64 5315.058 0.081 0.127 0.081 0.127 0.000924 0.0042518 25.295 1.252 8264.701 6027.103 0.004 0.005 0.004 0.005 5.21E-05 0.0499279 29.900 43.660 9506.13 3595.022 0.137 0.363 0.137 0.363 0.000851 0.01755510 29.696 68.181 9442.819 4537.275 0.214 0.446 0.214 0.446 0.001708 0.01976811 30.765 13.740 9360.511 5298.671 0.045 0.080 0.045 0.080 0.000477 0.00343712 30.408 -6.950 9313.684 6040.485 -0.023 -0.035 -0.023 -0.035 -0.00028 -0.0014213 25.948 37.269 10085.28 3640.437 0.096 0.266 0.096 0.266 0.000471 0.0113214 27.139 25.597 10055.63 4603.666 0.069 0.151 0.069 0.151 0.00051 0.00629

    15 27.792 48.603 9958.871 5363.594 0.136 0.252 0.136 0.252 0.001425 0.01005816 26.912 -11.770 9912.153 6081.866 -0.032 -0.052 -0.032 -0.052 -0.00038 -0.00193

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    HE SO TRUYEN NHIET DAI LY THUYET ONG B

    STT G1,106 G2,106

    dtrong

    dngoai 1 2 K(lt)

    (m3/s) (m3/s) m m W/mK W/m2K W/m2K W/mK

    1

    94.3

    94.3 0.014 0.016 93 6474.312 3531.999 106.6362 141.5 0.014 0.016 93 6475.607 4472.025 122.0653 188.7 0.014 0.016 93 6473.816 5284.741 133.1764 235.8 0.014 0.016 93 6460.503 6055.728 142.1145

    141.5

    94.3 0.014 0.016 93 8350.180 3566.898 117.1896 141.5 0.014 0.016 93 8341.682 4496.976 135.468

    7 188.7 0.014 0.016 93 8310.640 5315.058 149.0148 235.8 0.014 0.016 93 8264.701 6027.103 159.1469

    165.1

    94.3 0.014 0.016 93 9506.130 3595.022 122.57510 141.5 0.014 0.016 93 9442.819 4537.275 142.35811 188.7 0.014 0.016 93 9360.511 5298.671 155.87612 235.8 0.014 0.016 93 9313.684 6040.485 167.61013

    188.7

    94.3 0.014 0.016 93 10085.275 3640.437 125.75814 141.5 0.014 0.016 93 10055.631 4603.666 146.74715 188.7 0.014 0.016 93 9958.871 5363.594 160.672

    16 235.8 0.014 0.016 93 9912.153 6081.866 172.523

    BANG KET QUA TNH K,K(lt) THEO CHE O CHAY

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    Re1 K1 K(lt) Re2 K1 K(lt)

    W/mK W/mK W/mK W/mK

    19235.36 21.094 106.636 7261.00 21.094 106.6363

    19235.36 5.414 122.065 10637.97 5.414 122.0646

    19248.96 37.461 133.176 13881.68 37.461 133.1757

    19194.70 125.169 142.114 17401.93 125.169 142.1142

    30009.16 25.898 117.189 7505.71 25.898 117.1892

    29877.20 12.817 135.468 10841.04 12.817 135.4675

    29509.76 26.917 149.014 14163.41 26.917 149.0144

    28904.07 1.252 159.146 16845.89 1.252 159.1457

    40547.72 43.660 122.575 7685.39 43.660 122.5748

    39506.22 68.181 142.358 11099.38 68.181 142.358338032.78 13.740 155.876 14026.71 13.740 155.8764

    37234.79 -6.950 167.610 17401.93 -6.950 167.61

    42531.05 37.269 125.758 8042.77 37.269 125.7578

    42013.72 25.597 146.747 11730.04 25.597 146.7469

    40556.99 48.603 160.672 14578.39 48.603 160.6722

    39785.00 -11.770 172.523 17814.45 -11.770 172.5225

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    othK1,K(lt) theo Re1

    y = 0.0009x + 110.92

    y = -0.0006x + 49.956

    -50

    0

    50

    100

    150

    200

    0 10000 20000 30000 40000 50000

    Re1

    K(W/mK)

    Re1-K1

    Re1-K(lt)

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    othK1,K(lt) theo Re2

    y = 0.0045x + 85.038

    y = -0.0002x + 32.568

    -50

    0

    50

    100

    150

    200

    0 5000 10000 15000 20000

    Re2

    K(W/mK) Re2-K1

    Re2-K(lt)

    KET QUA TNH ONG C:

    Nhiet lng:

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    DONG NONG ONG C

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    STT G1,106 G2,106 t1tb 1 G1 Cp1

    t

    1 Q1 Q

    (m3/s) (m3/s) (oC) (kg/m3) (kg/s)(j/kg.o

    )(oC) (w) (w)

    1

    94.3

    94.3 67.90 979.05 0.0924 4187.9 5.4 2089.59 1348

    2 141.567.3

    0 979.350.092

    4 4187.3 6 2321.44 679

    3 188.765.9

    0 980.050.092

    4 4185.9 7.2 2784.80 2237

    4 235.865.1

    5 980.430.092

    4 4185.15 7.7 2977.65 726

    5

    141.5

    94.367.7

    5 979.130.138

    6 4187.75 4.1 2379.73 1677

    6 141.567.1

    5 979.430.138

    6 4187.15 4.7 2727.59 1790

    7 188.765.8

    5 980.080.138

    6 4185.85 5.3 3074.84 2136

    8 235.864.5

    5 980.730.138

    6 4184.55 5.9 3421.87 780

    9

    165.1

    94.375.7

    0 974.580.161

    2 4190 3.8 2566.63 464

    10 141.574.2

    0 975.480.161

    2 4190 4.8 3242.05 1369

    11 188.772.4

    5 976.530.161

    2 4190 5.7 3849.94 2287

    12 235.869.9

    5 978.030.161

    2 4189.95 6.1 4120.06 1872

    13

    179.2

    94.372.9

    5 976.230.175

    2 4190 3.9 2862.94 1500

    14 141.570.8

    0 977.520.175

    2 4190 4 2936.35 1882

    15 188.769.5

    0978.25

    0.1752 4189.5

    5 3670.00 2419

    16 235.866.8

    0 979.6

    0.1752 4186.8 5 3667.64 2396

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    DONG LANH ONG C

    STT

    G1,106

    G2,106 t2tb 2 G2 Cp2

    t

    2 Q2

    (m3/s) (m3/s) (oC) (kg/m3) (kg/s)(j/kg.o

    )(oC) (w)

    1

    94.3

    94.344.6

    5 989.210.093

    3 4180 1.9 740.85

    2 141.540.7

    0 991.580.140

    3 4180 2.8 1642.17

    3 188.739.6

    5 992.140.187

    2 4180 0.7 547.80

    4 235.837.9

    5 992.820.234

    1 4180 2.3 2250.70

    5

    141.5

    94.344.2

    0 989.480.093

    3 4180 1.8 702.05

    6 141.542.2

    0 990.680.140

    2 4180 1.6 937.53

    7 188.7 40.90 991.46 0.1871 4180 1.2 938.44

    8 235.839.0

    5 992.380.234

    0 4180 2.7 2640.96

    9

    165.1

    94.347.0

    0 987.800.093

    1 4180 5.4 2102.57

    10 141.544.4

    0 989.360.140

    0 4180 3.2 1872.57

    11 188.743.0

    0 990.200.186

    9 4180 2 1562.07

    12 235.840.6

    5 991.610.233

    8 4180 2.3 2247.96

    13

    179.2

    94.347.7

    5 987.350.093

    1 4180 3.5 1362.16

    14 141.544.1

    0 989.540.140

    0 4180 1.8 1053.5115 188.7 42.4 990.56 0.186 4180 1.6 1250.11

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    0 9

    16 235.840.3

    5 991.790.233

    9 4180 1.3 1270.82

    NH tlog

    t1V t1R t2V t2R tl=t1v-t2r

    tn=t1r-t2v

    tlog

    (oC) (oC) (oC) (oC) (oC) (oC) (oC)

    70.6 65.2 43.7 45.6 25 21.5 23.2170.3 64.3 39.3 42.1 28.2 25 26.5769.5 62.3 39.3 40 29.5 23 26.1269 61.3 36.8 39.1 29.9 24.5 27.11

    69.8 65.7 43.3 45.1 24.7 22.4 23.5369.5 64.8 41.4 43 26.5 23.4 24.9268.5 63.2 40.3 41.5 27 22.9 24.8967.5 61.6 37.7 40.4 27.1 23.9 25.4777.6 73.8 44.3 49.7 27.9 29.5 28.6976.6 71.8 42.8 46 30.6 29 29.7975.3 69.6 42 44 31.3 27.6 29.4173 66.9 39.5 41.8 31.2 27.4 29.26

    74.9 71 46 49.5 25.4 25 25.2072.8 68.8 43.2 45 27.8 25.6 26.6872 67 41.6 43.2 28.8 25.4 27.06

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    69.3 64.3 39.7 41 28.3 24.6 26.41

    TNH HE SO TRUYEN NHIET DAI THC NGIEM K

    STT

    G1,106

    G2,106 Q2 Q1 Q

    tlog K1

    (m3/s) (m3/s) (w) (w) (w) (oC) W/mK 1

    94.3

    94.3 740.85 2089.595 1348.745 23.206 31.9252 141.5 1642.17 2321.439 679.2676 26.568 61.8103 188.7 547.80 2784.796 2236.999 26.115 20.976

    4 235.8 2250.70 2977.651 726.9462 27.110 83.0205

    141.5

    94.3 702.05 2379.731 1677.682 23.531 29.8356 141.5 937.53 2727.593 1790.061 24.918 37.6257 188.7 938.44 3074.842 2136.406 24.894 37.6988 235.8 2640.96 3421.874 780.9138 25.467 103.7039

    165.1

    94.3 2102.57 2566.626 464.055 28.693 73.27910 141.5 1872.57 3242.054 1369.489 29.793 62.85311 188.7 1562.07 3849.94 2287.867 29.411 53.11112 235.8 2247.96 4120.062 1872.1 29.259 76.830

    13179.2

    94.3 1362.16 2862.943 1500.786 25.199 54.05514 141.5 1053.51 2936.352 1882.842 26.685 39.48015 188.7 1250.11 3670.002 2419.89 27.064 46.19016 235.8 1270.82 3667.637 2396.819 26.407 48.125

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    CHUAN SO Re DONG NONG ONG C

    t1V t1R t1tb 1 1.106 d1trong 1 Re1(oC) (oC) (oC)

    (kg/m3)

    (Ns/m2) m m/s

    70.6 65.2 67.90979.0

    5 419.44 0.014 0.613 20028.53

    70.3 64.3 67.30979.3

    5 423.28 0.014 0.613 19852.91

    69.5 62.3 65.90980.0

    5 432.24 0.014 0.613 19455.27

    69 61.3 65.15980.4

    3 437.04 0.014 0.613 19248.96

    69.8 65.7 67.75

    979.1

    3 420.4 0.014 0.920 29987.08

    69.5 64.8 67.15979.4

    3 424.24 0.014 0.920 29724.76

    68.5 63.2 65.85980.0

    8 432.56 0.014 0.920 29172.37

    67.5 61.6 64.55980.7

    3 440.88 0.014 0.920 28640.83

    77.6 73.8 75.70974.5

    8 376.93 0.014 1.073 38842.41

    76.6 71.8 74.20

    975.4

    8 384.58 0.014 1.073 38104.92

    75.3 69.6 72.45976.5

    3 393.51 0.014 1.073 37280.76

    73 66.9 69.95978.0

    3 406.32 0.014 1.073 36160.41

    74.9 71 72.95976.2

    3 390.96 0.014 1.165 40716.05

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    72.8 68.8 70.80977.5

    2 401.92 0.014 1.165 39657.59

    72 67 69.50 978.25 409.2 0.014 1.165 38981.14

    69.3 64.3 66.80 979.6 426.48 0.014 1.165 37453.33

    CHUAN SO Re DONG LANH ONG C:

    t2V t2R t2tb 2

    2.106 d2t 2 Re2

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2) m m/s

    43.7 45.6 44.65

    989.21 606.78 0.0263 0.286 12239.94

    39.3 42.1 40.7

    991.58 649.44 0.0263 0.429 17201.07

    39.3 40 39.65

    992.14 662.145 0.0263 0.572 22511.38

    36.8 39.1 37.95

    992.8

    2 687.135 0.0263 0.715 27125.80

    43.3 45.1 44.2

    989.48 611.64 0.0263 0.286 12146.00

    41.4 43 42.2

    990.68 633.24 0.0263 0.429 17625.11

    40.3 41.5 40.9

    991.46 647.28 0.0263 0.572 23012.58

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    37.7 40.4 39.05

    992.38 670.97 0.0263 0.715 27767.01

    44.3 49.7 47

    987.80 581.4 0.0263 0.286 12756.05

    42.8 46 44.4 989.36 609.48 0.0263 0.429 18287.81

    42 44 43

    990.20 624.6 0.0263 0.572 23817.89

    39.5 41.8 40.65

    991.61 649.98 0.0263 0.715 28641.45

    46 49.5 47.75

    987.35 573.3 0.0263 0.286 12930.38

    43.2 45 44.1

    989.54 612.72 0.0263 0.429 18194.42

    41.6 43.2 42.4990.5

    6 631.08 0.0263 0.572 23581.89

    39.7 41 40.35

    991.79 653.22 0.0263 0.715 28504.56

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    CHUAN SO Nu DONG NONG ONG C:

    STT Re1

    tlog t1 tt-1 1 1.10

    6Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2)

    (Ns/m2)

    (kg/m3)

    1 20028.53 23.21 8.04 59.86 979.05 419.44 2.635 471.136 983.072 2.978 85.3512 19852.91 26.57 11.40 55.90 979.35 423.28 2.660 502.428 985.052 3.201 83.7783 19455.27 26.12 12.94 52.96 980.05 432.24 2.719 525.582 986.518 3.368 82.6144 19248.96 27.11 14.69 50.46 980.43 437.04 2.751 545.348 987.769 3.512 81.6985 29987.08 23.53 6.21 61.54 979.13 420.40 2.641 460.125 982.228 2.904 118.8136 29724.76 24.92 8.53 58.62 979.43 424.24 2.667 480.908 983.690 3.047 117.3307 29172.37 24.89 10.10 55.75 980.08 432.56 2.722 503.541 985.123 3.209 115.6898 28640.83 25.47 11.55 53.00 980.73 440.88 2.777 525.312 986.501 3.366 114.1859 38842.41 28.69 6.60 69.10 974.58 376.93 2.348 411.753 978.449 2.585 138.886

    10 38104.92 29.79 9.01 65.19 975.48 384.58 2.400 436.803 980.407 2.750 136.69411 37280.76 29.41 10.69 61.76 976.53 393.51 2.461 458.708 982.118 2.895 134.888

    12 36160.41 29.26 12.05 57.90 978.03 406.32 2.549 486.574 984.049 3.087 132.66113 40716.05 25.20 5.59 67.36 976.23 390.96 2.444 422.907 979.321 2.658 147.15014 39657.59 26.68 7.76 63.04 977.52 401.92 2.519 450.566 981.482 2.841 144.65515 38981.14 27.06 9.45 60.05 978.25 409.20 2.568 469.664 982.974 2.968 142.99116 37453.33 26.41 10.55 56.25 979.60 426.48 2.681 499.607 984.874 3.180 140.179

    CHUAN SO Nu DONG NONG ONG C:

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    STTRe2

    tlog t2 tt-2 2 2.10

    6Pr2.

    t-2.106 2 Prt-2 Nu2

    (oC) (oC) (oC)(kg/m

    3)(Ns/m2)

    (Ns/m2)

    (kg/m3)

    1 12239.94 23.21 13.16 57.812 989.210 606.780 3.961 487.283 984.094 3.092 75.228

    2 17201.07 26.57 13.16 53.863 991.580 649.440 4.273 518.482 986.068 3.316 102.1853 22511.38 26.12 11.18 50.830 992.140 662.145 4.366 542.446 987.585 3.491 126.9574 27125.80 27.11 10.42 48.373 992.820 687.135 4.548 566.575 986.976 3.672 149.6325 12146.00 23.53 15.32 59.524 989.480 611.640 3.996 473.758 983.238 2.996 75.8136 17625.11 24.92 14.39 56.587 990.680 633.240 4.154 496.962 984.706 3.161 103.4437 23012.58 24.89 12.80 53.698 991.460 647.280 4.257 519.785 986.151 3.326 128.5608 27767.01 25.47 11.92 50.965 992.380 670.970 4.430 541.376 987.517 3.483 151.7429 12756.05 28.69 20.09 67.094 987.800 581.400 3.778 424.600 979.453 2.669 78.113

    10 18287.81 29.79 18.78 63.180 989.360 609.480 3.981 449.649 981.410 2.835 106.36311 23817.89 29.41 16.73 59.726 990.200 624.600 4.091 472.168 983.137 2.985 132.13712 28641.45 29.26 15.21 55.861 991.610 649.980 4.277 502.699 985.070 3.203 155.09913

    12930.38 25.20 17.61 65.358 987.350 573.300 3.720 435.711 980.321 2.742 77.61114 18194.42 26.68 16.92 61.022 989.540 612.720 4.004 463.462 982.489 2.926 105.51115 23581.89 27.06 15.62 58.017 990.560 631.080 4.138 485.667 983.992 3.081 131.08016 28504.56 26.41 13.86 54.209 991.790 653.220 4.301 515.748 985.895 3.297 153.974

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    Bai TN Truyen nhiet ong long ong GVHD: NguyenSy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    HE SO CAP NHIET 1 , 2

    STT 1.102 d1trong 1

    2.102d2td 2

    W/mK m W/m2K W/mK m W/m2K1 66.611 0.014 4060.939 64.051 0.0263 1835.5842 66.557 0.014 3982.866 63.498 0.0263 2471.8363 66.431 0.014 3920.087 63.344 0.0263 3063.6174 66.3635 0.014 3872.684 63.072 0.0263 3595.2775 66.5975 0.014 5651.904 63.988 0.0263 1848.0516 66.5435 0.014 5576.818 63.708 0.0263 2510.529

    7 66.4265 0.014 5489.139 63.526 0.0263 3111.28 66.3095 0.014 5408.246 63.248 0.0263 3656.1529 67.199 0.014 6666.431 64.38 0.0263 1915.78110 67.094 0.014 6550.952 64.016 0.0263 2593.88111 66.9715 0.014 6452.586 63.82 0.0263 3212.56312 66.7955 0.014 6329.386 63.491 0.0263 3751.37613 67.0065 0.014 7042.862 64.485 0.0263 1906.56814 66.856 0.014 6907.906 63.974 0.0263 2571.40915 66.755 0.014 6818.123 63.736 0.0263 3182.675

    16 66.512 0.014 6659.699 63.449 0.0263 3721.709

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    Bai TN Truyen nhiet ong long ong GVHD: Nguyen Sy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    KIEM TRA LAN 1 ONG C

    STT

    tlog K1 1 2 t1 t2 t1 (1) t2 (1) t1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 23.21 31.925 4060.939 1835.584 8.044 13.162 0.182 0.404 97.732 96.9342 26.57 61.810 3982.866 2471.836 11.405 13.163 0.412 0.664 96.385 94.9533 26.12 20.976 3920.087 3063.617 12.936 11.180 0.140 0.179 98.920 98.401

    4 27.11 83.020 3872.684 3595.277 14.688 10.423 0.581 0.626 96.043 93.9945 23.53 29.835 5651.904 1848.051 6.207 15.324 0.124 0.380 97.999 97.5216 24.92 37.625 5576.818 2510.529 8.531 14.387 0.168 0.373 98.029 97.4047 24.89 37.698 5489.139 3111.200 10.096 12.798 0.171 0.302 98.307 97.6438 25.47 103.703 5408.246 3656.152 11.551 11.915 0.488 0.722 95.773 93.9389 28.69 73.279 6666.431 1915.781 6.599 20.094 0.315 1.098 95.220 94.538

    10 29.79 62.853 6550.952 2593.881 9.013 18.780 0.286 0.722 96.829 96.15611 29.41 53.111 6452.586 3212.563 10.686 16.726 0.242 0.486 97.734 97.09312 29.26 76.830 6329.386 3751.376 12.048 15.211 0.355 0.599 97.052 96.06013 25.20 54.055 7042.862 1906.568 5.592 17.608 0.193 0.714 96.541 95.94214 26.68 39.480 6907.906 2571.409 7.763 16.922 0.153 0.410 98.036 97.579

    15 27.06 46.190 6818.123 3182.675 9.448 15.617 0.183 0.393 98.059 97.48516 26.41 48.125 6659.699 3721.709 10.548 13.859 0.191 0.341 98.191 97.536

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    Bai TN Truyen nhiet ong long ong GVHD: Nguyen Sy Xuan AnSVTH: Nguyen Viet Ha MSSV: 60200673

    TNH LAI LAN 1 DONG NONG ONG C

    STT Re1

    tlog t1 tt-1 1 1.10

    6Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC) (kg/m3) (Ns/m2) (Ns/m2) (kg/m3) 1 20028.53 23.21 0.182 67.72 979.05 419.44 2.635 420.608 979.141 2.643 87.936

    2 19852.91 26.57 0.412 66.89 979.35 423.28 2.660 425.919 979.556 2.678 87.5993 19455.27 26.12 0.140 65.76 980.05 432.24 2.719 433.134 980.120 2.725 87.1044 19248.96 27.11 0.581 64.57 980.43 437.04 2.751 440.760 980.716 2.776 86.6505 29987.08 23.53 0.124 67.63 979.13 420.40 2.641 421.195 979.187 2.647 121.6026 29724.76 24.92 0.168 66.98 979.43 424.24 2.667 425.316 979.509 2.674 121.2267 29172.37 24.89 0.171 65.68 980.08 432.56 2.722 433.654 980.160 2.729 120.4708 28640.83 25.47 0.488 64.06 980.73 440.88 2.777 444.005 980.969 2.797 119.5939 38842.41 28.69 0.315 75.38 974.58 376.93 2.348 378.539 974.769 2.359 142.093

    10 38104.92 29.79 0.286 73.91 975.48 384.58 2.400 386.038 975.652 2.410 141.27211 37280.76 29.41 0.242 72.21 976.53 393.51 2.461 394.740 976.675 2.470 140.35212 36160.41 29.26 0.355 69.59 978.03 406.32 2.549 408.593 978.203 2.564 138.968

    13 40716.05 25.20 0.193 72.76 976.23 390.96 2.444 391.941 976.346 2.496 149.47914 39657.59 26.68 0.153 70.65 977.52 401.92 2.519 402.698 977.612 2.571 148.30215 38981.14 27.06 0.183 69.32 978.25 409.20 2.568 410.373 978.342 2.576 148.14616 37453.33 26.41 0.191 66.61 979.60 426.48 2.681 427.701 979.695 2.690 146.179

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    TNH LAI LAN 1 DONG LANH ONG C

    STT

    Re2

    tlog t2 tt-2 2 2.10

    6Pr2.

    t-2.106 2 Prt-2 Nu2

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    ) (Ns/m2)(kg/m3

    )

    1 12239.94 23.21 0.404 45.054 989.210 606.780 3.961 602.421 988.968 3.929 70.8552 17201.07 26.57 0.664 41.364 991.580 649.440 4.273 642.265 991.181 4.220 96.2113 22511.38 26.12 0.179 39.829 992.140 662.145 4.366 659.517 992.068 4.347 120.1864 27125.80 27.11 0.626 38.576 992.820 687.135 4.548 677.933 992.570 4.481 142.3645 12146.00 23.53 0.380 44.580 989.480 611.640 3.996 607.537 989.252 3.966 70.6796 17625.11 24.92 0.373 42.573 990.680 633.240 4.154 629.207 990.456 4.124 96.7917 23012.58 24.89 0.302 41.202 991.460 647.280 4.257 644.022 991.279 4.233 121.0388 27767.01 25.47 0.722 39.772 992.380 670.970 4.430 660.347 992.091 4.353 143.5189 12756.05 28.69 1.098 48.098 987.800 581.400 3.778 569.547 987.141 3.693 72.02310 18287.81 29.79 0.722 45.122 989.360 609.480 3.981 601.683 988.927 3.924 98.05711 23817.89 29.41 0.486 43.486 990.200 624.600 4.091 619.349 989.908 4.052 122.41512 28641.45 29.26 0.599 41.249 991.610 649.980 4.277 643.508 991.250 4.229 144.68313 12930.38 25.20 0.714 48.464 987.350 573.300 3.720 565.584 986.921 3.665 72.18514 18194.42 26.68 0.410 44.510 989.540 612.720 4.004 608.295 989.294 3.972 97.75115 23581.89 27.06 0.393 42.793 990.560 631.080 4.138 626.838 990.324 4.107 121.98916 28504.56 26.41 0.341 40.691 991.790 653.220 4.301 649.532 991.585 4.274 144.300

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    TNH LAI LAN 1 HE SO CAP NHIET

    STT

    1.102 d1trong 1

    2.102

    d2td 2W/mK m W/m2K W/mK m W/m2K

    1 66.611 0.014 4183.921 64.051 0.0263 1725.592 66.557 0.014 4164.501 63.498 0.0263 2322.9013 66.431 0.014 4133.164 63.344 0.0263 2894.6944 66.3635 0.014 4107.431 63.072 0.0263 3414.1395 66.5975 0.014 5784.58 63.988 0.0263 1719.62

    6 66.5435 0.014 5761.987 63.708 0.0263 2344.6197 66.4265 0.014 5716.015 63.526 0.0263 2923.5858 66.3095 0.014 5664.412 63.248 0.0263 3451.4219 67.199 0.014 6820.345 64.38 0.0263 1763.06910 67.094 0.014 6770.381 64.016 0.0263 2386.77311 66.9715 0.014 6713.977 63.82 0.0263 2970.54512 66.7955 0.014 6630.298 63.491 0.0263 3492.80713 67.0065 0.014 7154.351 64.485 0.0263 1769.91514 66.856 0.014 7082.044 63.974 0.0263 2377.773

    15 66.755 0.014 7063.929 63.736 0.0263 2956.31416 66.512 0.014 6944.767 63.449 0.0263 3481.255

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    KIEM TRA LAN 2 ONG C

    STT

    tlog K1 1 2 t1 t2

    t1(1)

    t2(1)

    t

    1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 23.206 31.925 4183.921 1725.59 0.182 0.404 0.177 0.429 2.939 -6.374

    2 26.568 61.810 4164.501 2322.901 0 .412 0.664 0.394 0.707 4.362 -6.4123 26.115 20.976 4133.164 2894.694 0 .140 0.179 0.133 0.189 5.155 -5.8364 27.110 83.020 4107.431 3414.139 0 .581 0.626 0.548 0.659 5.715 -5.3065 23.531 29.835 5784.580 1719.62 0.124 0.380 0.121 0.408 2.294 -7.4696 24.918 37.625 5761.987 2344.619 0 .168 0.373 0.163 0.400 3.214 -7.0767 24.894 37.698 5716.015 2923.585 0 .171 0.302 0.164 0.321 3.969 -6.4178 25.467 103.703 5664.412 3451.421 0 .488 0.722 0.466 0.765 4.522 -5.9329 28.693 73.279 6820.345 1763.069 0 .315 1.098 0.308 1.193 2.257 -8.662

    10 29.793 62.853 6770.381 2386.773 0 .286 0.722 0.277 0.785 3.241 -8.67711 29.411 53.111 6713.977 2970.545 0 .242 0.486 0.233 0.526 3.893 -8.14712 29.259 76.830 6630.298 3492.807 0 .355 0.599 0.339 0.644 4.538 -7.403

    13 25.199 54.055 7154.351 1769.915 0 .193 0.714 0.190 0.770 1.558 -7.72114 26.685 39.480 7082.044 2377.773 0 .153 0.410 0.149 0.443 2.459 -8.14415 27.064 46.190 7063.929 2956.314 0 .183 0.393 0.177 0.423 3.480 -7.65716 26.407 48.125 6944.767 3481.255 0 .191 0.341 0.183 0.365 4.105 -6.907

    TNH LAI LAN 2 DONG NONG ONG C

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    STT Re1 tlog t1 tt-1 1 1.10

    6Pr1

    t-1.106 1 Prt-1 Nu1

    (oC) (oC) (oC) (kg/m3) (Ns/m2) (Ns/m2) (kg/m3) 1 20028.53 23.21 0.177 67.72 979.05 419.44 2.635 420.573 979.139 2.643 87.9362 19852.91 26.57 0.394 66.91 979.35 423.28 2.660 425.804 979.547 2.678 87.5993 19455.27 26.12 0.133 65.77 980.05 432.24 2.719 433.088 980.116 2.725 87.1044 19248.96 27.11 0.548 64.60 980.43 437.04 2.751 440.547 980.699 2.776 86.650

    5 29987.08 23.53 0.121 67.63 979.13 420.40 2.641 421.177 979.186 2.647 121.6026 29724.76 24.92 0.163 66.99 979.43 424.24 2.667 425.281 979.506 2.674 121.2267 29172.37 24.89 0.164 65.69 980.08 432.56 2.722 433.611 980.157 2.729 120.4708 28640.83 25.47 0.466 64.08 980.73 440.88 2.777 443.864 980.958 2.797 119.5939 38842.41 28.69 0.308 75.39 974.58 376.93 2.348 378.502 974.765 2.359 142.093

    10 38104.92 29.79 0.277 73.92 975.48 384.58 2.400 385.991 975.646 2.410 141.27211 37280.76 29.41 0.233 72.22 976.53 393.51 2.461 394.692 976.670 2.470 140.35212 36160.41 29.26 0.339 69.61 978.03 406.32 2.549 408.490 978.195 2.564 138.96813 40716.05 25.20 0.190 72.76 976.23 390.96 2.444 391.816 976.344 2.496 149.47914 39657.59 26.68 0.149 70.65 977.52 401.92 2.519 402.653 977.609 2.571 148.30215 38981.14 27.06 0.177 69.32 978.25 409.20 2.568 410.333 978.338 2.576 148.146

    16 37453.33 26.41 0.183 66.62 979.60 426.48 2.681 427.651 979.691 2.690 146.179

    TNH LAI LAN 2 DONG LANH ONG CST Re2 tl t2 tt-2 2 2.106 Pr2. 2 Prt-2 Nu2

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    Tog t-2.106

    (oC) (oC) (oC)(kg/m3

    )(Ns/m2

    ) (Ns/m2)(kg/m3

    ) 1 12239.94 23.21 0.404 45.054 989.210 606.780 3.961 602.421 988.968 3.929 70.8552 17201.07 26.57 0.664 41.364 991.580 649.440 4.273 642.265 991.181 4.220 96.2113 22511.38 26.12 0.179 39.829 992.140 662.145 4.366 659.517 992.068 4.347 120.1864 27125.80 27.11 0.626 38.576 992.820 687.135 4.548 677.933 992.570 4.481 142.364

    5 12146.00 23.53 0.380 44.580 989.480 611.640 3.996 607.537 989.252 3.966 70.6796 17625.11 24.92 0.373 42.573 990.680 633.240 4.154 629.207 990.456 4.124 96.7917 23012.58 24.89 0.302 41.202 991.460 647.280 4.257 644.022 991.279 4.233 121.0388 27767.01 25.47 0.722 39.772 992.380 670.970 4.430 660.347 992.091 4.353 143.5189 12756.05 28.69 1.098 48.098 987.800 581.400 3.778 569.547 987.141 3.693 72.02310 18287.81 29.79 0.722 45.122 989.360 609.480 3.981 601.683 988.927 3.924 98.05711 23817.89 29.41 0.486 43.486 990.200 624.600 4.091 619.349 989.908 4.052 122.41512 28641.45 29.26 0.599 41.249 991.610 649.980 4.277 643.508 991.250 4.229 144.68313 12930.38 25.20 0.714 48.464 987.350 573.300 3.720 565.584 986.921 3.665 72.18514 18194.42 26.68 0.410 44.510 989.540 612.720 4.004 608.295 989.294 3.972 97.75115 23581.89 27.06 0.393 42.793 990.560 631.080 4.138 626.838 990.324 4.107 121.989

    16 28504.56 26.41 0.341 40.691 991.790 653.220 4.301 649.532 991.585 4.274 144.300

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    TNH LAI LAN 2 HE SO CAP NHIET

    STT 1.10 2 d1trong 1 2.10 2 d2td 2W/mK m W/m2K W/mK m W/m2K

    1 66.611 0.014 4183.921 64.051 0.0263 1725.59

    2 66.557 0.014 4164.501 63.498 0.0263 2322.901

    3 66.431 0.014 4133.164 63.344 0.0263 2894.694

    4 66.3635 0.014 4107.431 63.072 0.0263 3414.139

    5 66.5975 0.014 5784.58 63.988 0.0263 1719.62

    6 66.5435 0.014 5761.987 63.708 0.0263 2344.619

    7 66.4265 0.014 5716.015 63.526 0.0263 2923.585

    866.3095 0.014 5664.412 63.248 0.0263 3451.421

    9 67.199 0.014 6820.345 64.38 0.0263 1763.069

    10 67.094 0.014 6770.381 64.016 0.0263 2386.773

    11 66.9715 0.014 6713.977 63.82 0.0263 2970.545

    12 66.7955 0.014 6630.298 63.491 0.0263 3492.807

    13 67.0065 0.014 7154.351 64.485 0.0263 1769.915

    14 66.856 0.014 7082.044 63.974 0.0263 2377.773

    15 66.755 0.014 7063.929 63.736 0.0263 2956.314

    16 66.512 0.014 6944.767 63.449 0.0263 3481.255

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    KIEM TRA LAN 3 ONG C

    STT tlog K1 1 2 t1 t2 t1 (1)

    t2(1) t1 t2

    (oC) W/mK W/m2K W/m2K (oC) (oC) (oC) (oC)

    1 23.21 31.925 4184.010 1725.811 0.177 0.429 0.1771 0.429 0.002136 0.0128022 26.57 61.810 4164.796 2323.367 0.394 0 .707 0.3943 0.707 0.00708 0.020043 26.12 20.976 4133.279 2894.879 0.133 0.189 0.1325 0.189 0.002792 0.006392

    4 27.11 83.020 4107.952 3414.817 0.548 0.659 0.5479 0.659 0.012662 0.0198535 23.53 29.835 5784.646 1719.861 0.121 0.408 0.1214 0.408 0.001134 0.0140136 24.92 37.625 5762.110 2344.915 0.163 0.400 0.1627 0.400 0.00213 0.0126577 24.89 37.698 5716.165 2923.851 0.164 0.321 0.1642 0.321 0.002626 0.0090848 25.47 103.703 5664.886 3452.327 0.466 0.765 0.4662 0.765 0.00836 0.0262249 28.69 73.279 6820.523 1763.947 0.308 1.193 0.3083 1.192 0.002612 0.04973310 29.79 62.853 6770.607 2387.518 0.277 0.785 0.2766 0.784 0.003341 0.03121111 29.41 53.111 6714.201 2971.117 0.233 0.526 0.2327 0.526 0.003332 0.01923912 29.26 76.830 6630.735 3493.535 0.339 0.644 0.3390 0.643 0.006601 0.02083613 25.20 54.055 7188.066 1770.429 0.190 0.770 0.1895 0.769 0.469054 0.02903214 26.68 39.480 7115.178 2378.165 0.149 0.443 0.1481 0.443 0.465683 0.016462

    15 27.06 46.190 7064.113 2956.742 0.177 0.423 0.1770 0.423 0.002602 0.01445216 26.41 48.125 6944.980 3481.638 0.183 0.365 0.1830 0.365 0.003072 0.010987

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    HE SO TRUYEN NHIET DAI LY THUYET ONG C

    STTG1,10

    6G2,10

    6 dtrong dngoai 1 2 K(lt)(m3/s) (m3/s) m m W/mK W/m2K W/m2K W/mK

    1

    94.3

    94.3 0.014 0.016 93 4184.010 1725.811 95.9442 141.5 0.014 0.016 93 4164.796 2323.367 95.5133 188.7 0.014 0.016 93 4133.279 2894.879 94.8064 235.8 0.014 0.016 93 4107.952 3414.817 94.2375

    141.5

    94.3 0.014 0.016 93 5784.646 1719.861 131.5446 141.5 0.014 0.016 93 5762.110 2344.915 131.0477 188.7 0.014 0.016 93 5716.165 2923.851 130.0338 235.8 0.014 0.016 93 5664.886 3452.327 128.9019

    165.1

    94.3 0.014 0.016 93 6820.523 1763.947 154.26910 141.5 0.014 0.016 93 6770.607 2387.518 153.18011 188.7 0.014 0.016 93 6714.201 2971.117 151.94812 235.8 0.014 0.016 93 6630.735 3493.535 150.12413

    179.2

    94.3 0.014 0.016 93 7188.066 1770.429 162.27414 141.5 0.014 0.016 93 7115.178 2378.165 160.68915 188.7 0.014 0.016 93 7064.113 2956.742 159.57816 235.8 0.014 0.016 93 6944.980 3481.638 156.983

    BANG KET QUA TNH K,K(lt) THEO CHE O CHAY

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    STT Re1 K1 K(lt) Re2 K1 K(lt)W/mK W/mK W/mK W/mK

    1 20028.528 31.925 95.944 12239.940 31.925 95.944

    2 19852.910 61.810 95.513 17201.072 61.810 95.5133 19455.271 20.976 94.806 22511.380 20.976 94.8064 19248.956 83.020 94.237 27125.803 83.020 94.2375 29987.080 29.835 131.544 12145.998 29.835 131.5446 29724.757 37.625 131.047 17625.111 37.625 131.0477 29172.369 37.698 130.033 23012.578 37.698 130.0338 28640.830 103.703 128.901 27767.006 103.703 128.9019 38842.410 73.279 154.269 12756.045 73.279 154.26910 38104.920 62.853 153.180 18287.810 62.853 153.180

    11 37280.756 53.111 151.948 23817.885 53.111 151.94812 36160.411 76.830 150.124 28641.454 76.830 150.12413 40716.055 54.055 162.274 12930.379 54.055 162.27414 39657.593 39.480 160.689 18194.415 39.480 160.68915 38981.141 46.190 159.578 23581.891 46.190 159.57816 37453.329 48.125 156.983 28504.565 48.125 156.983

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    oth K1 vaK(lt) theo Re1

    y = 0.0003x + 45.547

    y = 0.0032x + 33.405

    0

    20

    40

    60

    80

    100

    120

    140

    160

    180

    Re1

    K(W/mK)

    Re1-K1

    Re1-K(lt)

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    othK1 vaK(lt) theo Re2

    y = 0.0015x + 22.674

    y = 0.0001x + 132.17

    0

    20

    40

    60

    80

    100

    120

    140

    160

    180

    0 10000 20000 30000 40000

    Re2

    K(W/mK) Re2-K1

    Re2-K(lt)

    V. BAN LUAN:

    Thiet b truyen nhiet kieu ong long ong

    thng c dung e un nong hay lam nguoi cac

    lu chat khong kem theo qua trnh chuyen pha. No

    thng gom cac ong truyen nhiet khong co

    canh tan nhiet, thch hp cho cac TBTN long long,

    kh kh, t khi dung cho thiet b ngung tu hay boc

    hi.

    - u iem chnh :

    n gian trong viec che tao, thch hp cho ca 2lu chat eu lam viec ap suat cao.

    Ve mat to chc dong chay: hai lu chat cothe chay cung chieu hay ngc chieu trong tng phanoan va rieng tng lu chat co the chay noi tiep t

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    Chu yeu truyen nhiet c thc hien la nh

    s tron lan cac lp lu chat trong va ngoai xa truc cuadong chay.- Nhc iem : phu tai nhiet be.

    1.Ton that nhiet la ang ke : the hien viec nhietlng mat i cua dong nong ln hn nhieu so vi nhiet nhan vaocua dong lanh. Nguyen nhan :

    -Nhiet lam cho he thong ong nong len.- Ngoai ra con do sai so thao tac do khi oc ong ho nhiet

    o.2.Nguyen nhan gay ra sai so :

    - Co the he thong cha on nh a thc hien o so lieu.- oc nhiet o khong cung thi iem, nhiet o khong on

    nh.- Bm lu chat hoat ong khong on nh ( do ien khong on

    nh) .

    -S ro r chat long trong he thong ong-Cac ong nay noi lai thanh mot he thong bi

    o se co s truyen nhiet lan nhau trong toan he thong.-That thoat nhiet do s trao oi nhiet oi lu gia

    ong vi moi trng khong kh ben ngoai.- Do lu chat chay trong ong lau ngay se ong

    mot lp cau trong thanh ong. Khi tnh toan he so truyennhiet tong quat ta phai ke en. Hn na, be day lpnay ta khong biet cu the (thong thng ta lay la 2 mm).

    -

    - Do qua trnh x ly ket qua khong chnh xac.2.1 Anh hng cua sai so en qua trnh tnh toan:

    - Sai so day chuyen trong qua trnh tnh toan.- S dan nhiet cua ong dan en ton that Q ln hn nhieu

    trong ly thuyet .

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    1. Lu lng : G = V. , kg/s

    Cac tnh chat vat ly: , Cp, ,, Pr c tra t bang solieu theo nhiet o trung bnh cua dong lu chat.

    2.Tnh Q1 , Q2 :nhiet lng toa ra cua dong nong va nhan vaocua dong lanh:

    Q1 = G1. C1. t1

    Q2 = G2. C2. t2

    Suy ra ton that nhiet: Q = Q1-Q2

    Ta coLt

    Qii

    .log= i=1;2.

    Trng hp truyen nhiet ngc chieu:

    tl

    t2v

    t1r

    t2r

    t1v

    n

    n

    l

    nl

    t

    tLn

    ttt

    = log

    Vi L :chieu dai ong:

    Kieu B = 0,925m

    Kieu C = 1m

    3.Tnh KL theo ly thuyet:

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    =

    414.3

    2

    1

    2

    2 ddF

    =3.14*d1d=4F/ =(d22 d12)/d1

    d2: ng knh trong cua ong ngoai, d2= 0.026 (m)d1: ng knh ngoai cua ong trong, d1= 0.016 (m)

    Chuan so Prante:

    a

    =Pr

    : o nht ong hoc cua lu chat.a: he so dan nhiet cua lu chat

    Pr: tra bang theo nhiet o trung bnh cua lu chat.Prv: tra bang theo nhiet o trung bnh cua vach.

    Nu c tnh theo cong thc tuy thuoc vao Re:- Vi kieu B:

    5< Re < 103 Nu = 0,5.Re0,5.Pr0,38(Pr/Prt) 0,25

    103

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    41.28

    1.18 1.13 1.05 1.02 1

    Khi Re>104: l phu thuoc vao Re

    Re L/d10 20 30 40 50

    1.104 1.23 1.13 1.07 1.03 12.104 1.18 1.10 1.05 1.02 15.104 1.13 1.08 1.04 1.02 1

    1.105 1.10 1.06 1.03 1.02 11.106 1.05 1.03 1.02 1.01 1

    Trng hp nay: L/d = 1/0.01 = 100, ta chon 1 = 1.

    Sau khi co Nu suy ra ( ay tnh Nu cho tng dong trong moikieu)

    Nu1 = l. 1/ 1

    1 = Nu1. 1/l

    2 = Nu2 2/l

    Sau khi co 1 , 2 tra Cu = 385 w/mK, suy ra KL theo cong thc tren.

    Do nhiet o thanh ong (vach )khong biet, ta tnh theo trnh tsau:

    t1 = t1 t v1

    t2 = t v2 t2t v1, t v2 : nhiet o vach trong va vach ngoai cua ong trong.t1, t2: nhiet o trung bnh cua dong nong va dong lanh:

    2

    11

    1

    rvtt

    t+

    =

    Ta thc hien phep tnh lap:Ban au, chon gan ung hieu so gia nhiet o lu chat va

    vach nh sau:

    12

    1

    Re

    Ree

    t

    t

    - 59 -

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    ( )

    1

    2

    log

    2

    Re

    Re1

    21

    +

    =

    tt

    Ta chon cong thc :

    2

    1

    log

    1

    Re

    Re1

    5.1

    +

    =t

    t

    T ay ta tnh c nhiet o trung bnh cua lu chat va vachngan,

    tnhvPr

    Prva Nu

    l

    Nu

    .=

    : he so dan nhiet cua lu chat.l: kch thc hnh hoc ac trng,m.

    Sau khi co let qua tnh 12 ta kiem tra t1,t2 bang phng trnhq = K. tlog = 1t1 = 2 t2

    1

    '

    1

    Kt =

    2

    '

    2

    Kt =

    ay do4.114.1

    14

    16

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    VII. TAI LIEU THAM KHAO:

    1. Pham Van Bon - Nguyen nh Tho," Qua trnh va thiet btruyen nhiet",Nha xuat ban ai hoc Quoc gia Tp.HCM, nam 2000,Trang 383.

    2. Dng c Hong- Ha Manh Th - Bui Hai," Thiet b trao oinhiet",Nha xuat ban Khoa hoc va Ky thuat, 1999, Trang 444.

    3. Hoang nh Tn, Truyen nhiet va tnh toan thiet b trao oinhiet, ai hoc Bach Khoa Tp.HCM, 1996.

    4. Pham Van Bon Vu Ba Minh Hoang Minh Nam, Qua trnhva thiet b Cong ngheHoa hoc Tap 10 V du va bai tap, aihoc ky thuat Tp.Ho Ch Minh, Trang 468.