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An adiabatic compressor is used to bring saturated water vapor at a pressure of 103 lbf/in^2 up to 1000 lbf/in^2 , where the actual exit temperature is 1000 F degree. Find the compressor efficiency and the entropy generation. is there an improvement by reducing the exit temperature to 800 F degree?
a steady-flow diffuser has a 1 cm-diameter inlet and a 1.5 cm-diameter outlet. air enters this diffuser at 6 mpa 300 oc
a piston cylinder device contains 1 kg water at 20oc with a volume of 0.01 m3 by mistake someone locks the piston
Determine the smallest horizontal force required to lift the 260- crate. The coefficient of static friction at all contacting surfaces is = 0.7. Neglect the mass of the wedge.
The crankshaft in a given automobile rotates, on average, at 2500 revolutions per minute for a period of 2 h per day. How long would it take before the crankshaft has been subjected to 10^8 load cycles?
A concrete pipe storm sewer is 4 ft in diameter, and drops 3 ft in elevation per mile length. What is the maximum capacity of the sewer in gpm when the pipe is full? Please show all work for points.
a passive solar house that is losing heat to the outdoors at an average rate of 50000 kjh is maintained at 22 c at all
Given values of the diffusion coefficient for carbon in iron at 850°C and 950°C, we can calculate the activation energy for the diffusion of carbon in iron. the activation energy for vacancy migration in copper, we can calculate the activation energy..
a 3 m x 3 m x 2.4 m room losses heat through the walls at a rate of 520 w. determine the final temperature of the room
a bathroom door which is 0.91 m wide and 2.13 m high is equipped with a torsional spring and a torsional rotational
The supporting beam for a maintenance access platform strip spans 7 m and is to be simply supported at 1 m from each end as sketched in Figure 1. Assume that the beam could be subject to a distributed load of 2 kN/m and one point load of 6 kN.
air at the rate of 18 kgs is drawn into the compressor of a jet engine at 55 kpa and -23oc and is compressed reversibly
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
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