How are the amounts of flash vapor and water calculated after the flash vapor is condensed?

2015-10-30 View Original

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For 100 cubic meters of flash vapor at 150°C, after being condensed in a heat exchanger, its temperature drops to 60°C. What is the amount of flash vapor left, and what is the amount of condensate produced? How to calculate it?

Reply #2 2015-10-30

There is no pressure or volume for the condensate tank, nor is there a liquid level in the condensate tank; it’s most likely that everything has turned into water.

Reply #3 2015-10-30

It can only be calculated knowing the composition and the pressure after condensation.

Reply #4 2015-10-30

It mainly depends on the pressure, that is, what are the temperature and pressure of the steam after flashing? If saturated steam at 150°C is cooled by heat exchange to 60°C at atmospheric pressure, you need to find the enthalpy value of the steam and that of the liquid water, subtract one from the other; the resulting difference is the enthalpy value of the gaseous water produced through flash evaporation. Do you understand now?

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How are the amounts of flash vapor and water calculated after the flash vapor is condensed?

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