Presentasi Kelompok 4 Permas

7/23/2019 Presentasi Kelompok 4 Permas

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THE MECHANISMS OFBATCH DRYING

Andrea Rizky

Chandra Dewi Rosalina

ri!a Tri "#landari


2/21

THE MECHANISMS OF

BATCH DRYINGConstant RatePeriod


3/21

THE MECHANISMS OF BATCH

DRYING$a%# e&a'orasi dan s#h# 'er(#kaan da'a! dihi!#n)(en))#nakan Heat Balance

Fl#* o+ E&a'ora!ion

,alor yan) di!eri(a 'er(#kaan se-ara kon&eksi

Di(anaT) / Te('era!#r )Ts / Te('era!#r so


4/21

THE MECHANISMS OF

BATCH DRYINGMen)hi!#n) nilai

For 0ow o+ )as 'arallel !o a s#r+a-e

Air0ow 'er'endi-#lar !o !he s#r+a-e


5/21

THE MECHANISMS OF

BATCH DRYING,alor yan) di!eri(a se-ara radiasi da'a! dihi!#n)den)an (en)hi!#n) nilai

,alor yan) di!eri(a se-ara kond#ksi 1 kon&eksi


6/21

THE MECHANISMS OF

BATCH DRYINGDen)an (en))a2#n)kan 'ersa(aanse2el#(nya3 da'a! dihi!#n) ra!e o+dryin)

4 Y5

Den)an (eny#s#n #lan) di da'a!kan


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CONTOH SOA$ 6789An insol#2le -rys!alline solid we! wi!hwa!er is 'la-ed in a re-!an)#lar 'an

:8;( 2y :8; ( and 7


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ERTANYAAN

a5 Es!i(a!e !he ra!e o+ dryin) a!

-ons!an! ra!e25 Rees!i(a!e !he ra!e i+ !he 'an is

!hro#)hly hea!4ins#la!ed and

!here is no radia!ion +ro( !hes!ea( 'i'es


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ENYE$ESAIAN


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Dike!ah#i /

Re-!an)#lar 'an :8;( 3 :8; ( 3 :8=(( !hi-k

Y :8:6 k) wa!er? k) dry air

@ (?s

Flowin) 'arallel


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Men-ari (assa #dara 2asah

Basis #dara kerin) / 6 k) dry air

H#(idi!y :8:6 k) wa!erSehin))a #dara !o!al 6 :8:6 68:6k) air dry air wa!er5

Men-ari H#(id &ol#(e &H5

:8;7

,arena 2asis #dara kerin) adalah 6 k)

dry air3 (aka h#(id &ol#(e :8;7


12/21

Men-ari densi!y )as

Men-ari nilai 0#ks (assa G5

* @ (?s @867 k)?

Men-ari nilai


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Men)hi!#n) nilai

86< "? ,

Men)hi!#n) nilai

Den)an (en)es!i(a!e Ts @= 7;@ @66,


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Men)hi!#n) nilai A(dryin) s#r+a-e5

Men)hi!#n) area di sisi4sisi 'an

Men)hi!#n) nilai A#non dryin)

s#r+a-e5


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Ther(al -ond#-!i&i!y "?( ,5/

n!#k (e!al 'an

k( 93 !s @oC8

Saa! s#h# @oC3 s 79:8; k?k)

4 Y5

E&a'ora!ion ra!e/

;8=< * 6:495:89 5 @8=< * 6:49k)?s


19/21

ENYE$ESAIAN B5Saa! !idak ada radiasi a!a# kond#ksi 'anas(elal#i solid !er%adi3 dryin) s#r+a-e(en)ala(i kon!ak den)an #dara 'ada

s#h# we!42#l2 nya8

ada )rak yan) sa(a3 )aris 25 adalah

)aris adia2a!i-4sa!#ra!ion (elal#i !i!ik yan)(ere'resen!asikan #dara !G >


20/21

Ti!ik ys3 !s5 di'eroleh dari 'er'o!on)ank#r&a sa!#ra!ed h#(idi!y dari )rak'sy-hro(e!ri- air4wa!er &a'or den)an)aris adia2a!i-4sa!#ra!ion8


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er'o!on)an )aris k#r&a sa!#ra!ion4h#(idi!ydala( kondisi we!42#l23 !S 7=8

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Presentasi Kelompok 4 Permas