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Multi-flow

Multi-flow

Multi-flow

(OP)
I have multiple flows going into a deaerator. I need to determine the output temperature, but I only have the input mass flow rates and enthalpys.

Does anyone know a way to figure temperature based on mass flow and enthalpy alone?

RE: Multi-flow

You need two independent intensive properties to determine all other properties.

I2I

RE: Multi-flow

Assuming that the deaerator is single pressure, all your flows flash down to the operating pressure of the deaerator.  The operating pressure determines the temperature.  Look it up in the steam tables.

rmw

RE: Multi-flow

The same principle as in a refrigeration system

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