Question

n-pentane (gas) (C5H12 ) is burned with 1.25 of actual air. The air and fuel enter...

n-pentane (gas) (C5H12 ) is burned with 1.25 of actual air. The air and fuel enter the combustor at 288K and 101.325 kPa, the combustion products leave at 500K and 200 kPa.

Determine the maximum work that can be produced. Assuming surrounding temperature is 25C.

Homework Answers

Answer #1

Cp/R = A +BT +CT2 + DT-2    Where T is in K from 298 oK
Name Chemical formula Tmax CpigP298/R A B*103 C*106 D*10+5
n-Hexane C6H14 1500 17.55 3.025 53.722 -16.791 0
Carbon dioxide CO2 2500 4.467 5.457 1.045 0 -1.157
Nitrogen N2 2000 3.502 3.28 0.593 0 0.04
Oxygen O2 2000 3.535 3.639 0.506 0 -0.227
Water H2O 2000 4.038 3.47 1.45 0 0.121

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