An ideal regenerative Rankine cycle uses an open feedwater heater operating at a pressure of 400 kPa. The minimum Pressure in teh cycle is 50 kPa while the maximum is 5 MPa. If 82.5 MW of heat is added in the boiler which has a mass-flow rate of 25 kg/s, determine the maximum temperature in the cycle (range

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

In the winter, in order to keep the classroom steadily at 68 f before 10 pm, heating with an average rate of 42,000 btu/hr is provided. assume the outdoor temperature maintains at 32°f, determine the electrical power (kw) required to (a) operate a reversible heat pump (b) operate a real heat pump with a cop (7) of 4.5 and (c) operate an electrical-resistance heater.