Engineering, 25.11.2021 08:40 bryson9604
A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir at TC 5 275 K and rejects energy QH to a hot reservoir at TH 5 315 K. For each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible: (a) QC 5 1000 kJ, Wcycle 5 80 kJ. (b) QC 5 1200 kJ, QH 5 2000 kJ. (c) QH 5 1575 kJ, Wcycle 5 200 kJ. (d) 5 6.
Answers: 2
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
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Engineering, 04.07.2019 18:10
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
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Engineering, 04.07.2019 18:10
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
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
A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir at T...
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