Question

A spark ignition engine operates on an otto cycle with a compression ratio of 9, and temperature limits of 30 degrees Celsius and 1000 degrees Celsius. If the power input is 500kw,calculate the mass flow rate of air.

Answer 1

$\eta=1-\frac{1}{9}^{1.4-1}=1-(\frac{1}{9})^{0.4}$

$\eta=1-.41=0.58$

Mass flow rate 0.58