ME 221 University of Maryland Thermodynamics in Mechanical Engineering Questions
Question Description
Two Q’s of thermodynamics course.
I’ve attached a PDF file of the homework.
6.1 The air undergoes a Carnot Cycle with an efficiency of 40% and produces 200 KJ/kg of net power out. Solve the pressure, temperature, specific volume, and internal energy at each state and input into the table below. List any assumptions you make during your calculations. Assume idea gas. Rair=0.287 KJ/kg?K
6.2 An Otto cycle operates with a compression ratio of 11. Rair=0.287 KJ/kg?K
a) Solve for the pressure and temperature at each state if missing
b) Solve for the work and heat transfer for each process through the cycle (with correct sign convention)
c) Solve for the thermal efficiency of the cycle
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