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Round your final answers to three decimal places. The liquid leaving the condenser of a 115,000-Btu/h heat pump using refrigerant-134a as the working fluid is subcooled by 9.5 degree F. The condenser operates at 160 psia and the evaporator at 50 psia. How does this subcooling change the power required to drive the compressor as compared to an ideal vapor-compression refrigeration cycle?
three horizontal forces are applied as shown to a vertical cast-iron arm. determine the resultant of the forces and the
an ideal rankine cycle produces 100 MW of power. If the steam enters the turbine at 100 bar and 500C and is condensed at 1 bar, determine the flow rate of stream and the thermal efficiency.
an adiabatic pump operating at steady state compresses liquid water from an initial condition of 10 bar and 40degc to a
determine the frequency response and m omega and phiv omega for an instrument having a time constant of 10 ms.
a tube with elastic modulus of 75 gpa is used to support a compressive load. it is required that this tube must not
calculate the work necessary to compress air in an insulated cylinder from a volume of 6 ft3 to a volume of 1.2 ft3.
three monkeys a b and c weighing 23 23 and 20 lb respectively are climbing up and down the rope suspended from d. at
a vertical pipe conveying water tapers from 50 mm in diameter at the top to 25 mm in diameter at the bottom in a length
steam in a piston-cylinder assembly undergoes a polytropic process with n2 from an initial state where p 500 psia and
Two simple pendulums are related as follows. Pendulum A has a length LA and a bob of mass mA; pendulum B has a length LB and a bob of mass If the period of A is twice that of B, What is the relationship between LA and LB?
calculate the enthalpy change of the universe during the process. Cp=Cv = 4.18 kj/kgK
a 4m long quarter-circular gate of radius 3 m and of negligible weight is hinged aboutnbspits upper edge a. the gate
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