In: Mechanical Engineering
Thirty-six grams of air in a piston–cylinder assembly undergo a
Stirling cycle with a compression ratio of 7.5. At the beginning of
the isothermal compression, the pressure and volume are 1 bar and
0.03 m3, respectively. The temperature during the
isothermal expansion is 1200 K.
Assuming the ideal gas model and ignoring kinetic and potential
energy effects, determine:
(a) the net work, in kJ.
(b) the percent thermal efficiency.
(c) the mean effective pressure, in bar.