Chapter 8, Problem 8.104EP

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Q4: A 600 MW heat engine, which is cooled by water, the thermal efficiency of engine is 0.15 heat reject in engine. Determine the

During an isentropic process of 3 lb/sec of air, the temperature increases from 50 deg F to 290 deg F. Find the work for a nonflow process.

THERMODYNAMICS A certain gas expand from 7ft3 to 23ft3 while the pressure remains constant at 17.5psia. Find the work nonflow in the system in BTU.

Steam expands isentropically from 2 MPa and 375 o C to a final temperature of 95 o C.Find the final quality and the work for a non-flow and steady flow processes.

Solve it correctly and fast please.

9. An air compressor takes in air at 105 Pa and 27°C having volume of 1.5 m3/kg and compresses it to 4.5×105 Pa. Find the work done, heat transfer and change in internal energy if the compression is isothermal.

Refrigerant R134a in piston cylinder assembly, 200 kPa in initial state pressure and in the form of saturated vapor. It is then reversed and The final pressure is 1000 kPa by being compressed in the adiabatic state change. a) Find the final temperature (°C). b) Find the work done (kj/kg). Note: The changes in kinetic and potential energies will be neglected.