How is the terminal pressure of a steam heat exchanger determined?
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During system design, how is the steam supply pressure determined for the steam heating system, and what are the requirements regarding the steam pressure at the end-use heat exchangers? If anyone has relevant specifications or standards, please share them
At the outlet, it is essentially the saturation pressure of the condensate water; the pressure drop should mainly occur at the control valve at the inlet.
I didn’t explain it clearly; what I mean is how the pressure of this condensate water is determined. For example, as far as we know currently, the condensate water pressure is around 3-4 bar. Why is this value chosen? Would it work if I set it to 2 bar instead?
We have several steam-heated reboilers, whose condensate temperature is about 20 degrees higher than the temperature of the fluid at the bottom of the tower; the saturated water vapor pressure corresponding to this condensate temperature is the actual pressure of the condensate.
At the outlet, it is essentially the saturation pressure of the condensate water; the pressure drop should mainly occur at the control valve at the inlet.