Number of watts that must be supplied to the compressor

Assignment Help Mechanical Engineering

Reference no: EM13701705

A Carnot refrigerator using R-134a absorbs heat from a refrigerated space at 0^oC and rejects heat to a kitchen at 27^oC.The refrigerant enters the evaporator with a quality of zero and exits with a quality of one. The operating pressure of the evaporator is 225 kPa. If the mass flow rate in the unit is 0.5 kg/s determine the number of Watts that must be supplied to the compressor.

Reference no: EM13701705

Questions Cloud

Calculate the rate of heat transfer from this plate : A thin flat plate 6in square with a surface temperature maintained at 250°F is tested for drag in a wind tunnel with an airspeed of 100ft/s. The air is at standard sea level pressure and 60°F and flows over the top and the bottom of the plate. This f..

The velocity at the nozzle exit : Air at 22 kPa, 220K and 250 m/s enters a turbojet engine in flight at an altitude of 10,000m. The diffusor slows the air down to a very low speed relative to its inlet. The pressure ratio across the compressor is 12. The turbine inlet temperature is ..

Electrical energy into mechanical work : If you knew how much voltage you would generate with a given device and you needed to convert that electrical energy into mechanical work, how would you go about doing that?

Maintain the heated space at a constant temperature : A heat pump is used to heat a building. The outside air temperature is -10 C and the desired inside temperature is 20.3 C. The heat loss through the walls, ceiling, etc, is 30 kW. Determine the ideal coefficient of performance and the minimum power r..

Number of watts that must be supplied to the compressor : A Carnot refrigerator using R-134a absorbs heat from a refrigerated space at 0oC and rejects heat to a kitchen at 27oC.The refrigerant enters the evaporator with a quality of zero and exits with a quality of one. The operating pressure of the evapora..

Combustion process taking place in a sealed container : In a combustion process taking place in a sealed container, 160kg of methane is burned in 560kg of O2 and 1845kg of N2 to yield CO, CO2, H2O and N2 as the products of combustion. How many kg of CO are produced?

First law of thermodynamics : Stone Mountain near Atlanta, GA has a sky ride which a gondola is suspended from a cable that takes people to the top of Stone Mountain as well as back down. [MO4, MO5, MO6]. Using the First Law of Thermodynamics, what would be the most efficient way..

Determine the thermodynamic efficiency and back work ratio : A regenerative gas turbine is planned to operate with inlet conditions of 100 kPa and 300 K, a pressure ratio of 6, a turbine inlet temperature of 1600 K, and a net power output of 150 kW. The effectiveness of the regenerator is 90% and the adiabatic..

Regenerator as well as reheating and intercooling : Air enters a THREE STAGE gas turbine at 100 kPa and 17 degree Celsius. This system uses a regenerator as well as reheating and intercooling.

User Account

All Pages