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An ideal vapor-compression refrigeration cycle uses r-134a as the working fluid is used to cool a brine solution to -5 C. This solution is pumped to various buildings for the purpose of air conditioning. The refrigerant evaporates at -10 C with a total mass flow rate of 7.72 kg/s, and condenses at 600 kPa. Determine the COP ot the cycle and the total cooling load.
an iron blok m1kg initialy held stationary is dropped form a 100 m height. it strikes the groud and is assumed to be
a 0.2-cm-thick 10-cm-high and 15-cm-long circuit board houses electronic components on one side that dissipate a total
you decide to do a demonstration on a rooftop that requires water. there isnt a handy faucet so you put a barrel of
a four cylinder two stroke diesel engine has a cut-off ratio of 1.8 and a compression ratio of 22. it operates with an
propane gas enters a continuous adiabatic heat exchanger at 40degc and 250 kpa and exits at 240degc superheated steam
compressed liquid water at 42 c and 8 mpa steadily flows into a boiler and exits as a saturated vapor at 8 mpa. the
A mixture of air and water at a temperature of 30ºC and a pressure of 750 mmHg has a relative humidity of 75%. The wet gas is compressed to 40 psia and cooled to 20ºC. How many cubic meters of original gas were compressed if 0.75 lb of condensate (wa..
a closed and rigid tank with 1.5 m3 volume initially contains saturated vapor refrigerant 134a at 50deg c. the system
It is proposed to use Liquid Petroleum Gas (LPG) to fuel spark-ignition engines. A typical sample of the fuel on a volume basis consists of: 70% propane C3H8; 5% butane C4H10; and 25% propane C3H6. The higher heating values of the fuels are 50.38 MJ/..
consider 5 kg of air initially at 101.3 kpa and 38 c. heat is transferred to the air until the temperature reaches 260
it is highly desirable to make benzene from ethane from shale gas in a continious vapor-phase reaction3c2h6 --gt c6h6
the 4 in diameter brass shaft shown is fixed at end a and fastened securely to a rigid horizontal member at end b.
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