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Rule of thumb.. 1 psi per 10 deg... is good Posted by JimBlake [Email] ![]() ![]() ![]() In Reply to: Rule of thumb....1psi = 10 degrees......, Mike Lynch ![]() |
(Been away for a couple days but I'll revive this one.)
The rule of thumb is good. Temperature & pressure BOTH have to be in absolute units. Using your numbers...
60 F = 520 R
90 F = 550 R
32 psig = 46.7 psia
46.7 * (550/520) = 49.4 psia = 34.7 psig
So that's almost 3psi difference.
posted by 68.73.7...
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