The webpage is not working since JavaScript is not enabled. Most likely, you are viewing using Dropbox website or another limited browser environment.
Direct Contact Heater Design Calculation
Inputs = Yellow colour cells
S.No
Description
Values
UOM
1
Juice flow rate
T/hr
2
Specific heat of juice
Kcal/kg/
^{o}
C
3
Temperature of inlet Juice
^{o}
C
4
Temperature of outlet Juice
^{o}
C
5
Vapour Temperature (Heating Media)
^{o}
C
6
Velocity of juice i/l
m/sec
7
Velocity of juice o/l
m/sec
8
Velocity of vapour at I/L
m/sec
9
Velocity of vapour at annulus
m/sec
10
Velocity of NCG
m/sec
11
Top Baffle Angle
Deg.
12
Bottom Baffle Angle
Deg.
13
Bottom Cone Angle
Deg.
14
No. of Baffles
no.s
16
Shell thickness
4
mm
Latent Heat of Vapour (Heating Media)
Kcal/kg
Specific Volume of vapour (Heating Media)
M
^{3}
/kg
Result
1
Vapour Quantity Required
(Juice Quantity x Specific heat of the juice x ΔT) / Latent heat of vapour.
T/hr
M
^{3}
/sec
2
Dia of bottom baffle
Author:
SQRT ( Vapour Qty in M3/sec x 4 / (π x Velocity of vapour at annulus in m/sec).
mm
Say
mm
3
Dia of vapour inlet
Author:
SQRT [ ( vapour Qty in M3/sec x 4) / (π x Velocity of inlet vapour) ].
mm
Say
mm
4
Dia of juice inlet
Author:
SQRT [ ( Juice inlet Qty in M3/sec x 4 ) / (π x Velocity of inlet juice)].
Say
mm
5
Dia of juice outlet
Author:
SQRT ( (Juice inlet Qty + Condensate Qty in M3/sec) x 4 / (π x Velocity of outlet juice in m/sec).
Say
mm
6
Dia of NCG vent
Author:
SQRT (Qty of NCG vapours in M3/sec x 4 / (π x Velocity of NCG in m/sec)
Say
mm
7
Dia of top baffle
Author:
Dia of bottom baffle + (100mm to 120mm)
mm
8
Dia of the shell
Author:
SQRT [ (Dia of bottom baffle)2 + (Dia of top baffle)2]
Say
mm
9
Dia of bottom annulus
Author:
Dia of bottom annulus = Dia of bottom baffle
mm
10
Height of bottom cone
Author:
Tan φ [(ID of Shell dia - juice outlet dia)/2] ( (Here φ = Bottom cone in Deg.)
mm
11
Height of the bottom baffle
Author:
Tan φ [(ID of Shell dia - Dia of bottom baffle) / 2] ( (Here φ = Bottom Baffle Angle in Deg.)
mm
12
Height of the top baffle
Author:
Tan φ [(Dia of top baffle) / 2] ( (Here φ = Top Baffle Angle in Deg.)
mm
13
Height of the bottom annulus
Author:
Dia of the vapour inlet + (50 to 100mm)
mm
14
Height of bottom cone
Author:
( for below 1100mm shell dia it will take 175mm and above 1100mm dia will take 345mm)
mm
15
Height between top and bottom baffles
Author:
It is nearly having 40 to 60mm.
mm
16
Height between bottom and top baffles
Author:
It is nearly having 25 to 50mm.
mm
17
Height between top cone and juice inlet
Author:
Vapour space height consider 1500mm to 2000mm.
mm
18
Height between top baffle and bottom annulus
Author:
It is nearly having 200 to 250mm.
mm
19
Gap between Jc inlet and bottom baffle
Author:
It is nearly having 200 to 250mm.
mm
20
Total height. of the heater
Author:
Height of the top cane+ Height of the vapour space above the baffle arrangement + Dia of the juice inlet + Gap between Juice inlet and bottom baffle + (Number of baffles x Height of the bottom baffle) + (Number of baffles x Height of the top baffle ) + (Number of baffles x Height between bottom and top baffles) + (Number of baffles x Height between top and bottom baffles) + Height between top baffle and bottom annulus + Height of the bottom annulus + Height of the bottom cone.
mm
www.sugarprocesstech.com
Thank You for Using Calculator
sugarprocesstech
It is a On-line calculator allowing for evaluating only. If you will give input values in yellow colour cells than you will get remaining values automatically. It also provided print option as well as reset options
Do not show next time
Update
Reset
Print
Submit