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Refrigerant-134a enters the condenser of a residential heat pump at 900 kPa and 40°C at a rate of 0.02 kg/s and leaves at 900 kPa as a saturated liquid. If the compressor consumes 1.2kW of power, determine (a) the COP of the heat pump and (b) the rate of heat absorption from the outside air.
an air conditioner operating at steady state maintains a dwelling at 20 degrees celsius on a day when the outside
with a sphygmomanometer as pressure is released the height of the mercury column is recorded at two points as blood
the jib crane is supported by a pin a c and rod ab. the rod can withstand a maximum tension of 40kn. if the load has a
a power plant produces a flue gas with a mass flow rate of 2 million pounds per hour. of that 150000 lbhr is water
temperature in state college pa on 31st december 2012 was 22 f. if the barometric pressure was 100 kpa and the humidity
block c starts from rest at t 0 and moves downward with a constant accelerration of 4 ins2 . knowing that block b has
a rectangular casting having the dimensions 3 inch by 5 inch by 10 inch solidifies completely in 11.5 min. using n2 in
the dry bulb temperature of the air in a 4m by 3m underground opening is 26 degc. the corresponding moisture content is
How does the National Society of Professional Engineers Code of Ethics promote safety, health and welfare to the public? (2 - 3 paragraphs)
a vehicle is moving along a straight line with an acceleration given by ms2 where s is in m. at s 0 t 0 and v 6 ms.
a piston cylinder device initially contains 5kg of water at saturated liquid state1. it undergoes a process in which it
At a section in a passage, the pressure is 150 kPa (abs), the temperature is 10 deg C, and the speed is 120 m/s. For isentropic flow of air, determine the Mach number at the point where the pressure is 50 kPa (abs). Sketch the passage shape.
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