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Air is compressed from 14.7 psia and 60 F to a pressure of 150 psia while being cooled at a rate of 10 Btu/lbm by circulating water through the compressor casing. the volume flow rate of the air at the intel conditions is 5000 ft^3/min, and the power input to the compressor is 700 hp. Determine (a) the mass flow rate of the air and (b) the temperature at the compressor exit.
a refrigerator is situated in an insulated room it has a 2-hp motor that drives a compressor. over a 30 minute period
a system receives 0.756 kgs of a fluid at a velocity of 36.58 ms at an elevation of 30.48 m. at the exit at an
A centrifual pump is used to raise water against a static head of 18 m. The suction and delivery pipes, both .15m in diameter, have respectively, friction head losses amounting to 2.25 and 7.5 times dynamic head. The impeller, which rotates at 1450 r..
A pipe with OD 6.03cm, ID 4.93cm carries steam at 250deg C with h = 200 W/m^2.K The pipe is covered with 2.5cm of magnesia (85%) insulation followed by 2.5cm of polystyrene (k = .025 W/m.K The outer surface is exposed to air at T = 20 deg C with h = ..
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
an ideal gas is heated from 50 c to 80 c a at constant volume and b at constant pressure. for which case do you think
a closed system consisting of 0.13 lbmol of air undergoes a polytropic process from a pressure of 14 psia and specific
the stress strain diagram for polyester resin is given. the rigid beam is supported by strut ab amp post cd made from
1. a rigid tank that is initially evacuated is connected through a valve to a supply line that carries air at 200kpa
steam at 10 mpa 600 degrees c enters the first-stage turbine of an ideal rankine cycle with reheat. the steam leaving
readeachquestioncarefully.remembertoexplainyoursolutionasyougosincedesignproblemscanbesolvedinanumberofways.itisacceptab
the tank on the right weighs 920 n empty and contains 1.1m3 of water at 20degc. the entrance and exit pipes are
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