Engineering, 05.10.2019 13:30 xonyemaa12
Consider a carnot cycle of a closed system that operates between temperature reservoirs at 300 k and 1200 k. if the minimum cycle pressure is 45 kpa, and the total heat input is 120 kj/kg, what is the : a) thermal efficiency and net work of the cycle; b) the peak pressure of the cycle? you may assume air with constant specific heats, a specific heat ratio of 1.4 and gas constant of 0.287.
Answers: 2
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
Engineering, 04.07.2019 18:10
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
Consider a carnot cycle of a closed system that operates between temperature reservoirs at 300 k and...
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