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A 2 m3 tank containing nitrogen at 25oC and 500kPa is connected through a valve to another tank containing 3kg of nitrogen at 35oC and 200kPa. Now the valve is opened and the entire system is allowed to reach equilibrium at temperature of 20oC. Determine the volume of the second tank and the final equilibrium pressure.
a straight fin of uniform cross section is fabricated from a material of thermal conductivity 50 wmk thickness w6mm and
A commercial heat pump has energy in to the system at a rate of 60 kW from a thermal reservoir. If the power input from an electric motor is 15 kW, (a) determine the power (kW) delivered to the office area. (b) Determine the coefficient of perform..
a spherical communication satellite with a diameter of 2.5m is orbiting around the earth. the outer surface of the
a material is sought for a high speed centrifuge. the objective is to acheive as high an angular velocity w of the
Question about Turbomachinery - Impulse & Reaction Turbines, An impulse air turbine rotor with a blade speed (U) of 300 m/s is measured to have a relative rotor inlet velocity (W_1) of 750 m/s at an angle of 69 degrees and an outlet relative veloc..
a simply supported beam of length 18 ft. is subjected to a trapezoidally distributed load that has a value of 3 kipft
suppose that you want to design a column to support a uniform compressive stress stress naught. if the columns cross
An ogee spillway of a gravity dam is to be modeled using water. The spillway section is 40 feet high, its crest length is 60 feet and the maximum discharge is 3,000 CFS when the head on the crest of the spillway is 5 feet. Using a model scale of 1:10..
many bridge designs today contain simple geometrical components but are constructed into complex ways to ensure that
given atmospheric air enters a 10m long 150-mm diameter uninsulated heating duct at 60 celcius and 0.04 kgs. the duct
a 0.5-m3 rigid tank containing hydrogen at 20oc and 400 kpa is connected by a valve to another 0.5-m3rigid tank that
refrigerant 134a is the working fluid in an organic rankine cycle. saturated vapor at 60degc enters the turbine and the
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