SteffenH
Mechanical
- Mar 25, 2016
- 11
hello again,
I got insane heat transfer coefficients. Average velocity of 1.5m/s, gets Re 152 000 for liquid Ra134a.
With that I get C1 0.021 and m 0.84, C2 0.98, Pr 3.32
Cross flow about aligned pipe stack.
so C2*C1*Re^m*Pr^0.36 gets me about 50 000?
formulas from Fundamentals of Heat and mass transfer.
I got insane heat transfer coefficients. Average velocity of 1.5m/s, gets Re 152 000 for liquid Ra134a.
With that I get C1 0.021 and m 0.84, C2 0.98, Pr 3.32
Cross flow about aligned pipe stack.
so C2*C1*Re^m*Pr^0.36 gets me about 50 000?
formulas from Fundamentals of Heat and mass transfer.
