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The link you got the information from is down (in the selecting turbo sizet thread), so i could not consult them for answers.

The forumla you quoted mentions that Temp rise can be found by the equation "T2 = T1 (P2 ÷ P1)0.283 ", and you go on to show that with parameters of T1 = 75*F, P1 = 14.7psi and P2 = 24.7psi, that:

"T2 = 535 (24.7 ÷ 14.7)0.283 = 620 °R".

There is only one problem, if you actually work this out to get the solution for T2, it comes out to be 254.4, which clearly is not 620*R. I noticed the problem when I first got a negative Outlet Temperature, and then when that figure began to reach severe negatives when finding AE.

A new link, or clarification would be much appreciated.

Thanks,
Randy

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