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JeanetteBaker
A small expander (a turbine with heat transfer) has 0.05 kg/s helium entering at 1000 kPa, 550 K and leaving at 250 kPa, 300K. The power output on the shaft measures 55kW. Find the rate of heat transfer, neglecting kinetic energies.
http://antipasto.union.edu/~andersoa/mer231/HW6F10_SOLUTIONS.pdf