Pan Section Vapour Header and Pan vapour Line Dia with Online Calculator
in this article given formulas for calculate Pan Section Vapour Header and Pan vapour Line Dia and also proved online calculator.
Pan Section Vapour Header Dia :
Required Data For Calculation:
- Crushing Rate in TCH
- A m/c % cane (To be Take percentage of m/c boiled in that particular bleed vapour).
(For example while calculating the 2^{nd} bleed vapour header for pans , choose how may pans boiled in 2^{nd} vapour according to that consider the percentage of m/c )
- B m/c % cane (To be Take percentage of m/c boiled in that particular bleed vapour).
(For example Consider total B m/c to be boiled on 3^{rd} vapour bleeding than calculating the 2^{nd} bleed vapour header for pans, choose percentage of m/c is zero in calculator)
- C m/c % cane (To be Take percentage of m/c boiled in that particular bleed vapour).
- Temperature of input vapour in ^{o}C
- Velocity of inlet vapour in m/sec (Taken as per bleed vapour from evaporator body)
- Specific steam consumption for A massecuite in ton of vapour per ton of m/c ( For A m/c it is having 0.4 to 0.5)
- B massecuite Specific steam consumption in ton of vapour per ton of m/c ( For B m/c it is having 0.35 to 0.4)
- Specific steam consumption for C massecuite in ton of vapour per ton of m/c ( For C m/c it is having 0.30 to 0.35)
- Specific volume of vapour in M^{3}/kg ( Taken from Steam table for the particular temperature)
Formulas for calculation:
- Vapour requirement m/c boiling in Ton/hr = ( TCH x m/c % cane x Steam consumption of vapour)/100
- Total vapour Requirement in T/hr = ( Vapour requirement for A m/c boiling + Vapour requirement for B m/c boiling + Vapour requirement for C m/c boiling )
- Than total vapour requirement to be covert into M^{3}/sec by the multiplying the specific volume of vapour
- Dia of vapour Line header = SQRT [Volume of vapour / (0.785 x Velocity of vapour) ]
Pan Vapour Inlet and Out Line Dia:
Required Data For Calculation:
- Heating surface of the pan in m^{2}
- Evaporation rate of the pan in Kg/ m^{2}/hr ( Take maximum value for calculating the vapour lines)
- Pan Inlet Vapour Temperature in ^{o}C (Taken from evaporator bleed vapour temperature)
- Pan Outlet Vapour Temperature in ^{o}C ( It is having 50^{o}C to 60^{o}C)
- Inlet Vapour velocity of Pan in m/sec (Taken from evaporator bleed vapour velocity)
- Pan Outlet Vapour Velocity in m/sec ( It is having 50 to 60 m/sec)
- Specific volume of Pan inlet vapour ( Taken from Steam table for the particular temperature)
- Specific volume of Pan Outlet vapour ( Taken from Steam table for the particular temperature)
As Per Hugot given Evaporation Rate of pans |
||||
Maximum | Minimum | |||
Kg/m^{2}/hr | Lb/Ft^{2}/hr | Kg/m^{2}/hr | Lb/Ft^{2}/hr | |
Footing | 85 | 17.5 | 17 | 3.5 |
A massecuite | 71 | 14.6 | 32 | 6.6 |
B massecuite | 46 | 9.4 | 11 | 2.2 |
C massecuite |
36 | 7.5 | 1.7 | 0.34 |
Formulas for calculation:
- Volume of the vapour in M^{3}/sec = (Heating surface x evaporation rate of the pan x Specific volume of vapour /3600 )
- Dia of vapour Line = SQRT [Volume of vapour / (0.785 x Velocity of vapour) ]
Related Articles:
Condensate Receiving Tank Design Calculation | Condensate Mound
Three and half massecuite boiling material balance calculation.
Sugar Factory Material Balance Calculation for 3 m/c Boiling.
Sugar Industry Related Important Websites | sugar Technology
Formulas for calculate vapour line dia for juice heater and evaporator.
Batch centrifugal machine capacity and its gravity factor by online calculator.
Hi friends Thanks for reading. I Hope you liked it. Give feed back, comments and please don’t forget to share it
4 thoughts on “Pan Section Vapour Header and Pan vapour Line Dia Calculation”
sudhir Kumar Tripathi
(November 16, 2017 - 7:35 am)Refinery clearification
BAL kishore
(December 1, 2017 - 1:12 pm)Sir,please tell me the velocity of water in injection header
siva alluri
(December 3, 2017 - 4:30 pm)Generally it will take 2 to 2.2m/sec velocity
BAL kishore
(December 11, 2017 - 9:40 am)Thanku sir