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A vapor compression refrigeration cycle has a theoretical COP of 4.8 and provides 120,000 btu/h of cooling (same as 10 tons of cooling). The compressor is driven by a motor with an efficiency of 92%. Estimate the theoretical kW electrical demand that this motor will draw when the refrigeration cycle is running at full capacity.
Calculate the total resistance (RT) of the circuit. Determine the total current (IT) drawn by the circuit. Determine the total power (PT) supplied by the battery.
An ideal vapor-compression refrigeration system operates at steady state with Refrigerant 134a as the working fluid. Superheated vapor enters the compressor at 30 lbf/in2, 20F, and saturated liquid leaves the condenser at 140 lbf/in2. The refriger..
consider a one-dimensional plane wall with constant properties and uniform internal generation qdot. the left face is
the man pulls the boy up to the tree limb by walking backward. if he starts from rest when 0 and moves backward with a
a persona is trying to keep his balance while on a sledb that is sliding down an icy incline. the weight of a and b are
a plate 50 mm wide and 15 mm thick is loaded in tension. the plate is made from steel with yield strength of 1500 mpa
a spherical pressure vessel is formed of 16-gauge 0.0625 in cold drawn aisi sheet steel. if the vessel has a diameter
a system consisting of 3 lb of water vapor in a piston- cylinder assembly initially at 350degf and a volume of 71.7 ft3
a heat pump operates on the ideal vapor compression refrigeration cycle with r-134a as the working fluid between the
An accident occurs when car A rear-ends car B at a stoplight. The mass of car A is 1500kg and the mass of car B is 1000 kg. Car B was initially at rest with the brakes locked. Skid marks indicate car B slid 12 m after the impact. Assuming that the co..
a flat plate is sliding at a constant velocity of 5 ms on a large horizontal table. a thin layer of oil of absolute
you purchase a building lot for 20000 and build q 110000 duplex apartment on it. you paid cash for the lot the bank
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