One real professional case question from the 2010 exam for registered chemical engineers
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10. Compress air at 27°C, 101.3 kPa(A), and 12345 N.m3/h to 5×105 Pa(A). If compression is considered as an adiabatic process, with the adiabatic index of air taken as 1.4, then the compressor outlet temperature (K) and shaft power (kW) correspond to which of the following sets of values? (A) 473.6 ； 772.3 (B)473.6 ； 5048 (C)300.2 ； 773.3 (D)300.2 ； 5048 I mainly want to know how to calculate that shaft power, what the formula is, and which area of knowledge it belongs to Who can give an explanation
Well, the calculation formulas are on page P127 of the Tianjin University version for the registration exam in chemical engineering. . Must have missed it: lol
Compressor~ it’s a very important formula.
Could you do another favor? http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1049782&extra=page%3D1 Let’s see if there’s another way to do it
What does 12345 N.m3/h mean? Nm3/h is the nominal value; what about this one? What unit?
What is the formula for calculating shaft power? ?