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Consider an ideal vapor-compression refrigeration cycle. The refrigerator employs Refrigerant 134a as the working fluid and operates at steady state. At the compressor inlet, saturated vapor enters at -10 °C, and saturated liquid leaves the condenser at 30 °C. The mass flow rate of refrigerant is 0.08 kg/s. Determine:
(a) the rate of heat rejection from the condenser, in kW,
(b) the compressor power, in kW,
(c) the coefficient of performance.
A paper clip is made of wire 0.7 mm in diameter. If the original material from which the wire is made is a rod 25 mm in diameter, calculate the longitudinal engineering strain and true strain that the wire has undergone during processing.
a floating cone with tip angle 60 degrees has. mass of m1300kg is placed in sea water with density rho 1025kgm3. on top
a tile-iron consists of a massive plate maintained at 150degc by an embedded electrical heater.nbspthe iron is placed
a link containing points a amp b must assume the positions listed in the table for each problem. below graphically
a heat pump has a second law efficiency of of 74. it supplies heat to a room at a rate of 46000 btuhr in order to
a 2.1-m long 0.2-cm diameter electrical wire extends across a room that is maintained at 200c. heat is generated in the
Water drips at the rate of 5 drops per second from a leaking tap. Determine the vertical distance between two consecutive drops after the lower drop has attained a velocity of 3 m/s.
temperature in state college pa on 31st december 2012 was 22 f. if the barometric pressure was 100 kpa and the humidity
1 consider the diagram below where a pump is used to draw water from a lake to feed an irrigation system.a which of the
a rigid tank with a volume of 25 m3 contain 15 kg of saturated liquid-vapor mixture of water at 75 ordm c. now the
every work producing system results in wasted energy. thermal efficiency gauge sthe conversion of heat to work in a
Calculating electrical power from a geothermal Resource, A geothermal well is producing 9000kg/second from a hot water basin at 200 ºC [enthalpy of 800 KJ/Kg].
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