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Consider an R-134a compressor on a refrigeration system. If the refrigerant enters as saturated vapor at 200 kPa, 0.03 m3/s and leaves at 700 kPa, the power input to the compressor is 10 kW. The 20°C surroundings experience an entropy increase of 0.008 kW/K. Determine (a) the rate of heat loss from the compressor, (b) the exit temperature of the refrigerant, and (c) the rate of entropy generation.
a steam power plant has a high pressure of 3mpa and it maintains 60c in the condenser. a condensing turbine is used but
Neglecting the mass of the rod and the effect of friction, determine the radial and transverse components of the velocity of the collar when r = 0.5 m.
for a ballistic missile loaded with candy launched with the following conditions burnout altitude 200km burnout
determine (a) the instantaneous center of rotation of the double pulley (b) the velocity of th slider block (c) the number of inches of cord wrapped or unwrapped on each pulley per second.
a square aluminum plate 5 mm thick and 200 mm on a side is heated while vertically suspended in quiescent air at 40c. a
a car with mass 3250 lbm is driven at 60 mih when the brakes are applied to quickly decrease its speed to 20 mih.
the hull of a boat has a volume of 150 m3 and the total mass of the boat when empty is 8560 kg. determine how much load
a contractor is required to prepare a soil surface so that its planar and the normal direction to the surface is within
a 600 mw coal-fired power plant has an overall thermal efficiency of 38. it is burning coal that has a heating value of
consider an ideal steam cycle that combines the reheat cycle and the generative cycle. the net power output of the
a rugged instrument used frequently for monitoring gas velocity in smoke stacks consists of two open tubes oriented to
a continuous steady state distillation column is fed a mixture that is 70 mol n-pentane and 30 mol n-hexane. feed rate
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