Engineering, 24.04.2020 23:24 Kencharlot
5.14 A power cycle receives QH by heat transfer from a hot reservoir at TH = 1200 K and rejects energy QC by heat transfer to a cold reservoir at TC = 400 K. For each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible. (a) QH = 900 kJ, Wcycle = 450 kJ (b) QH = 900 kJ, QC = 300 kJ (c) Wcycle = 600 kJ, QC = 400 kJ (d) η = 75%
Answers: 2
Engineering, 04.07.2019 18:10, Tyrant4life
Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
Answers: 1
Engineering, 04.07.2019 18:10, mamasbug4285
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
Answers: 3
5.14 A power cycle receives QH by heat transfer from a hot reservoir at TH = 1200 K and rejects ener...
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