Heat Exchanger Design: Calc. Liquid & Vapor Specific Heat

Thread starter UAChE
Start date Apr 3, 2009
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Design Heat Heat exchanger

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To calculate the liquid and vapor specific heat for the given heat exchanger design, additional temperature measurements are required, as the current data is insufficient. The process fluid enters as a liquid at 168F, with a portion boiling and exiting as a mixture at 190F. The total duty of the system is 45,500,000 BTU/hr, but without more specific temperature data, the specific heats cannot be determined. The lack of a fixed ratio between liquid and vapor specific heats complicates the calculation further. Accurate specific heat values are essential for effective heat exchanger design and performance analysis.

Apr 3, 2009

UAChE

I have 1,935,420 lbs/hr of process fluid entering all liquid at 168F. 38,000 lbs/hr boils, and the mixture exits at 190F. Total duty is 45,500,000 BTU/hr. Is there a way to calculate the liquid specific heat and the vapor specific heat with this information?

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Apr 5, 2009

russ_watters

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Sorry, no. You need more temperature measurements becuase there is no set ratio of specific heats.

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