Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is cooled in the condenser at a pressure of 7.5 kPa.   Show the cycle on a T-s diagram with respect to saturation lines.

Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is cooled in the condenser at a pressure of 7.5 kPa. Determine the mass flow rate of the steam. The mass flow rate of steam is 109.1 kg/s.

A vapor-compression cycle is used as a refrigerator to extract 8 kW of heat from a cold space at 0°C and rejects heat into a space at 25°C. R-134a enters the compressor at 140 kPa superheated by 4°C above the saturation temperature and leaves at 900 kPa. It exits the condensor as a saturated liquid. Assume that pressure losses are negligible and that the compressor is isentropic. Report your answers to four significant digits using rounding. QUESTION 1 Report the maximum possible COP. QUESTION 3 Report the power required by the compressor. QUESTION 2 Report the mass flow rate in kg/s. QUESTION 4 Report the COP for the cycle.

Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 8000 kPa, the reheat section at 1000 kPa, and the condenser at 20 kPa. The mixture quality at the exit of both turbines is 90 percent. Determine (a) the temperature at the inlet of each turbine, (b) the cycle's thermal efficiency, efficiency of this cycle. Assume a source temperature of 1500 K and a sink temperature of 295 K. (d) the second-law