How is the operating temperature of a heat pipe working fluid calculated?
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How do I determine the operating temperature of a heat pipe working fluid? I read in a book that Tv=(T1+nT2)/1+nTv has two values; T1 corresponds to the inlet of the hot fluid, T2 corresponds to the outlet of the cold fluid, while the outlet of the hot fluid corresponds to the inlet of the cold fluid. This is the method for obtaining two values. What I do is use heat pipes to recover the latent heat from flue gas; it should fall under the category of gas-gas heat pipe exchangers. How is n generally determined, and how is Tv fixed?
Average temperature of the media on both sides. However, the design temperature should be taken as the higher one of the two sides.