THIN FILM EVAPORATORBahan : Borosilicate Glass

Tutup atas standard dishead; Tutup bawah conicalT operasi=500oC (932¿¿o F )maksimum ¿

Poperasi=0.3kPa(14.66 psig)(Vacuum)

Feed Flowrate=10Literjam

(10dm3

jam)

Asumsi :

Zb ( tinggisilinder )=4∗do

V RK+V Stirrer=96 %∗V TOTAL

V Liquid=4%∗V TOTAL

θ=0.5menit

• Diameter EvaporatorV Liquid=F∗θ

V Liquid=(10Literjam )∗( 0.5

60jam)=0.03dm3

V TOTAL=V Liquid

0.04=0.03

0.04=0.75dm3(0.0265 ft3)

V TOTAL=V I+V II

0.0265=0. 0847do3+ π

4do

2∗(4∗do)

0.0265=0.0847do3+3.14 do

3

do3=0.00821

do=0.202 ft (2.42 inch)

do=0.2083 ft (2.5 inch )merupakanhasil standarisasi

• Tinggi Evaporator

• Bagian Atas – Standard Dished Head (Za) :

Za=0.169∗do

Za=0.169∗(2.5 inch)=0.423 inch

• Bagian Silinder (Zb) :

Zb=4∗do

Zb=4∗(2.5inch )=10 inch

• Tebal Evaporator (Borosilicate Glass = Item 15)• Bagian Atas – Standard Dished Head (tha) :

Trial (1) = tha=38inch →

r100tha

= 2.5

100(38)=0,067 (sumbuordinat kiri)

kemudian

dipotong ke garis sphere line

Didapat : B=100 00=Pallowable∗( rtha

)

Pallowable=( 100006.7 )=14 9 2.537 psig≫≫14.66 psig(OK !)

• Bagian Silinder (ts) :

Zb

d o

= 102.5

=4 ¿

Trial (1) = ts=38inch →

dots

=2.538

=6.67 (garis potong)

Didapat : B=10900=Pallowable∗( dots

)

Pallowable=( 110006.67 )=1650 psig≫≫14.66 psig(OK !)

• Spesifikasi BladeBahan : 316 SS

Panjang batang blade : 25 cm

Diameter batang blade : 5 mm

Banyak blade : 4 buah

Panjang per blade : 19 mm

Lebar per blade : 20 cm

Daya Rotor supply : P=V∗i

P=220Volt∗0.5 Ampere padabasis proses

P=110Watt=0.11kW

DESAIN THIN FILM EVAPORATOR