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Consider a non-ideal vapor-compression cycle where Refrigerant 134a flows at a rate of 0.05 kg/s. The refrigerant enters the compressor at -10 °C, 0.14 MPa, and exits at 0.7 MPa. The isentropic compressor efficiency is 80%. Neglect pressure drops at the condenser and evaporator. The refrigerant leaves the condenser at 0.7 MPa, 26 °C. Ignoring heat transfer between the compressor and its surroundings, determine:
(a) the rate at which heat energy is removed from the refrigerated space, in kW,
(b) the coefficient of performance.
a specimen of a 4340 steel alloy having a plane strain fracture toughness of 45 mpa m is exposed to a stress of 1000
A hemispherical dome is filled with water. The dome arrangement weighs 28kN and is fastened to the floor by bolts equally spaced
compute the required diameter for a solid circular shaft if it is transmitting a maximum of 110hp at a speed of 560
How many engagement points on the flywheel would be necessary to make this machine safe
a water pump pumps out 2400kg of water pr min. a if water coming out with a velocity of 3ms what is power of the pump?
The desire is to raise the temperature of the ambient air from 60 degree F to 350 degrees F ---- I need to calculate the amount of steam energy in BTU's per minutes and lbs of steam per minute necessary to accomplish the increase in air temperatur..
a particle is traveling with a velocity of v 3sqrtte-0.2ti 4e-0.8t2j ms where t is in seconds. determine the magnitude
capacitor with capacitance 6.00 microf is connected to a resistor with r 780 o in series and an emf source of 25.0 v
if k 0.410-3 ft-1 determine d such that a car driving at constant speed v0180mph experiences at b an acceleration with
write a paper on boyles law and describe compression and combustion stroke . also explain charless law and illustrate
The process and volume relation is given p=(8-4v)bar for a non flow process ,where V is in cubic meter.If 130kJ of work is supplied to the system,calculate the final pressure and volume of the system.Take the initial volume as 0.5 cubic meter.
consider a steam turbine where steam enters with a pressure of 10 mpa and temperature 500 degc and expands
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