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Approach temperature
Posted: 20 April 2022, 14:30
by thubelihle
I have supply water at 90F to use source of cooling and l want it to heated to 120 to avoid fouling. I want to use a temperature approach of 10F. So do l use 90+ 10= 100F or 120 + 10 = 130 to get the condenser pressure. Thanks
Re: Approach temperature
Posted: 20 April 2022, 17:56
by jasper
Quoting Ross Taylor:
The temperature and pressure of the coolant in the condenser plays no role in setting the pressure of the condenser (which, I assume, is attached to a column). These things are completely independent. If ChemSep is the column model then you do not need to know (and cannot, in any case, provide) the pressure of the coolant.
Re: Approach temperature
Posted: 21 April 2022, 04:10
by thubelihle
Gooday,
I meant the pressure of the condenser, so as to determine the pressure of the column based on Tdew of the distillate
Re: Approach temperature
Posted: 21 April 2022, 12:20
by jasper
If you are using 120 F water to cool with a 10 F approach temperature, you should probably have your condensor at 130 F.