Compute the maximum coefficient of heat pump
An air conditioner running with R-134a on a cycle executed under the saturation dome between the pressure limits of 0.8 MPa and 0.12 MPa. Calculate the maximum Coefficient of this heat pump.
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A steady flow of 15 kg/s of high-pressure liquid oil drives a hydraulic motor at the steady-state-steady-flow conditions shown below. Find the diameter of the exit pipe, and the power output, Wcv & out?
Mass flow rate of air through all devices is 80 kg/s. Show the cycle on T-s diagram, indicating temperature values and lines of constant pressure.
A lecture hall having a volume of 106 ft3 contains air at 808F, 1 atm, and a humidity ratio of 0.01 lb of water vapor per lb of dry air. Determine the relative humidity.
The tank is heated until its pressure is 100 psia. What is (a) the volume of the tank and (b) the amount of heat transfer?
Heat is then released from the system until the piston drops to a height of 0.07 m. How much heat is removed in this process? Answer in kJ and do not use a negative sign in your answer.
The steam expands reversibly and isothermally to a final pressure of P2 = 800 kPa. Determine the heat transferred and the work done during this process.
Assuming complete combustion and that the pressure in the container remains constant. Determine the entropy generation during the process on the basis of 1 mole of ethane.
The wheel radius is 46 cm and the height of the center of gravity of the girl above the ground is 75 cm. What is the average force of friction on the girl during the motion? Treat the wheels as thin rings.
Calculate the total equivalent length of 1-in wrought iron pipe that would produce a pressure drop of 70 kPa due to fluid friction, for a fluid flowing at a rate of .05 kg/s, a viscosity of 2cP, and density of 1000 kg/m3.
The water leaves the tube leaves at the 1MPa and 300oC with a velocity of 80m/s. Calculate the 1) volume flow rate at the outlet; 2) mass flow rate at the inlet; and 3) velocity at the inlet.
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