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The superheated water vapor at 50 kPa and 100°C is compressed isentropically in a closed system to 4 MPa. Determine the final temperature of the water and the specific work required, win , in kJ/kg, for this compression.
a 6lb ball is to be fired from rest using a spring having a stiffness of k40 lbft. determine how far the spring must be
a heat pump units operates between two heat reservoirs with temperatures of 270 and 330 k. the heat pump its self has a
The diameter of the tube is 13 cm and its length is 60 m. Determine the overall heat transfer coefficient of this heat exchanger using (a) LMTD and (b) -NTU method.
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
a rigid closed tank of volume 3 m3 contains 5 kg of wet steam at a pressure of 200 kpa. the tank is heated until the
air at 40 degree c and 1 atm at volumetric flow rate of 1.5 m3s is joined with co2 at 120 degree c and 1 atm in pipe
consider a steam power plant that operates on a simple ideal rankine cycle and has a net power output of 45 mw. steam
air in a piston-cylinder assembly initially at 290 k and 100 kpa undergoes two internally reversible processes in
an effluent stream consists of poly-dispersed aerosol of uniform density 1.8 gcm3. the particle size distribution is
water flows in a 5-m-wide channel with a speed of 2 ms and a depth of 1m. the channel bottom slopes at a rate of 1 m
a mass of 15 kg of air in a piston-cylinder device is heated from 25 to 77 degrees celcius by passing current through a
a heat pump has a coefficient of performance of 2 using a power input of 2 kw. its low temperature is to and the high
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