Calculate the cop of the heat pump
Refrigerant 134-a enters a condenser of a residential heat pump at 800 kPa and 35oC at a rate of 0.018 kg/s amd leaves at 800 kPa as a saturated liquid. If the compressor consumes 1.2 kW off power, determine the COP of the heat pump.
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A point moves in the plane so that its tangential acceleration w = a, and its normal acceleration wn = bt4, where a and b are positive constants, and t is time. At the moment t = 0 the point was at rest.
A rigid, insulated vessel is divided into two compartments connected by a valve. Initially, one compartment, occupying one third of the total volume, contains air at 500 degrees R, and the other is evacuated.
What is the output power Pout of motor at the instance that crate reach B? Pout can be also evaluated by Pout = F.V . What are F and V in this case? Also find their magnitude.
A point charge moving in a magnetic field of 1.24 Tesla experiences a force of 0.813E-11 N. The velocity of the charge is perpendicular to the magnetic field The speed of the charge is 0.410E8 m/s. Calculate the magnitude of the charge
Refrigerant 134-a enters a condenser of a residential heat pump at 800 kPa and 35oC at a rate of 0.018 kg/s amd leaves at 800 kPa as a saturated liquid.
What is velocity of plate B right after impact? Set up a proper equation that relates states of plate B + spring (A) right after impact and (B) maximum compression.
A 0.70 T magnetic field is applied to a paramagnetic gas whose atoms have an intrinsic magnetic dipole moment of 1.4 x 10-20 J/T. At what temperature will the mean kinetic energy of translation of the atoms equal the energy required to reverse such
Air enters a compressor operating at steady state at 17oC, 1 bar and exits at a pressure of 5 bars. If there are no internal irreversibilities, evaluate the work and heat transfer, each in kJ/kg of air flowing for the following cases:
The current flowing in a solenoid that is 23.9 cm long and has a radius of 2.20 cm and 530 turns decreases from 3.31 A to 1.19 A in 0.200 s. Determine the magnitude of the induced electric field inside the solenoid 1.10 cm from its center.
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