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Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobaric ally until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperature is 70 F. Determine the heat transfer [Btu] and work transfer [Btu] for the two-step process. Also show the process on P-v state diagram.
assignment 1problem 1determine the analytical solution for the maximum stress of the beam shown compare with stress
a piston cylinder system stores 15 kg of water that is initially at 120 degrees celsius with 0.25 quality. a two step
a dentist drill is driven by a small high-speed turbine operating on compressed air which produces a shaft power output
Calculate all the gear ratios. if 22.1 kw is transmitted in 1st gear at an engine speed of 3000 rpm, Evaluate the required fixing torque on the annulus
(a) Determine the surface temperatures on the two sides of the circuit board.
helium is used to operate an 18 hp gas turbine. the gas enters the steady-flow device at 220 fts through an area of
a thermocouple located at the center of a long circular duct with a 10cm diameter has a spherical bead of 2mm diameter.
A slow leak develops in an inner tube (volume, 0.5 ft3, temperature, 600F), wherein it takes 4 hours for the pressure to decrease from 30 to 25 psig. The mass flow rate of air per second under the conditions is given by 0.68pA/(RT)0.5, where the unit..
For an hour 11 AM to 12 noon on a clear winter day, IB = 1.38 MJ/m2, and ID = 0.41 MJ/m2. Ground reflectance is 0.6. For this hour, the incidence angle ? for the beam radiation is 17°, and RB = 2.11. A collector with one glass cover is sloped 60° and..
the heat flux that is applied to the left face of a plane wall is q20 wm2. the wall is of thickness l10 mm and of
If the density of air is 1.20 kg/m^3 at the inlet and 1.05 kg/m^3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer.
a fan is blowing 32f air over a container filled to within 1 inch of the top with a solution of ethyl alcohol in water.
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