Alat 20 Akumulator

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Description

20. Akumulator Fungsi : Menampung liquida destilat Tipe 

: Drum Horizontal Kondisi operasi : Tekanan operasi

= 1 atm

Temperatur operasi

= 85oC

Jumlah campuran yang akan ditampung ( M ) : M

= kg/jam

ρcamp

= kg/m3

Volume

=

M ρ

=

kg / jam kg/m 3

Jika digunakan 1 buah tangki, maka volume larutan : VL

=

V 1

=

V 1

= m3/jam Jika 80% larutan mengisi tangki/silinder, maka : Volume silinder ( Vs ) : Vs

=

100 x Volume larutan 80

=

100 x Volume larutan 80

= m3 

Pemilihan ukuran tangki : Tipe

: Drum Horizontal

Tutup : Dishead head 

Tinggi silinder : H



3 x D = 1,5 D 2

Luas penampang tangki : A



=

=

π x D2 4

Volume silinder :

Vs

=HxA = 1,5 D x

π x D2 4

= 1,5 D3 x

π x D2 4

?

= 1,5 D3 x

π 4

D

=

D

=m

√ 3

? ❑

Sehingga : H

= 1,5 D = 1,5 x D =m



Tinggi larutan dalam silinder ( HL ) HL

=

80 xH 100

=m 

Tebal silinder ( Ts ) Ts

=

Pr x Ri + C……………….Pers. 13.1 Brownell and Young S x E−0,6 x Pr

Dimana : Pr

= Tekanan rancang ( N/m2 ) = Popr + PH

Jika : PH

= ρ x HL x g = Kg/m3 x m x m/detik2 = N/m2

Pr

= N/m2 + N/m2 = N/m2

Jika material yang digunakan adalah Carbon Steel SA – 334 Grade C ( Tabel 13.1 Brownell and Young ) S

= Stres yang diizinkan ( N/m2 ) = 11700 Psi = 80668692 N/m2

E

= Efisiensi sambungan = 80%

C

= Faktor korosi = 0,003 m

Ri

= Jari – jari ( m ) =

Di 2

=m Sehingga : Ts

=

Pr x Ri +C S x E−0,6 x Pr

=m = inch Karena Ts ? inch, maka digunakan tebal shell ? inch 

Penentuan tutup atas ( dishead head ) Te

=

0,885 x P R x Ro + C………………………..Pers. 13.1 Brownel and Young E x F−0,6 x P R

Sehingga : Ro

= Diameter luar silinder ( r ) = 2 ( Ts ) + Di =2(m)+m =m

Sehingga : Te

=

0,885 x P R x Ro +C E x F−0,6 x P R

=m = inch 

Penentuan tutup silinder Menentukan tutup ( GAMBAR ) Dari table 5.6 Brownell and Young Straight Flange ( Sf ) = 78 inch = 1,9812 m

Knockle radius ( icr ) = 4,750 inch = 0,1207 m Grown radius ( r )

= 2 inch = 0,0508 m

Maka : AB

=

ID – icr 2

=

ID – 0,1207 2

=m BC

= r – icr = ? – 0,1207 =m

AC

= √ BC 2− AB2 = √ BC 2− AB 2 =m

b

= r - √ BC 2− AB 2 = =m



Tinggi total tutup ( OA ) OA

= t + b + sf = =m

Panjang total akumulator ( Lt ) Ltot

= Hs + 2 OA =?+2() =m

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