Engineering, 22.04.2020 23:59 aly02
Air at 30℃ is being heated by both the top and bottom surfaces of a flat plate. The plate has a length of 0.8 meters along the flow direction and a width of 0.4 meters. Air flows over the plate at a velocity of 5 m/s. Both surfaces of the plate are maintained at a constant temperature of 100℃. Determine the rate of heat loss from the plate.
Answers: 1
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
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Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
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Air at 30℃ is being heated by both the top and bottom surfaces of a flat plate. The plate has a leng...
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