Engineering, 24.04.2020 17:53 mrfishyyyy
5.29 A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir at TC = 275 K and rejects energy QH to a hot reservoir at TH = 315 K. For each of the following cases, determine whether the cycle operates reversibly, operates irreversibly, or is impossible: (a) QC = 1000 kJ, Wcycle = 80 kJ. (b) QC = 1200 kJ, QH = 2000 kJ. (c) QH = 1575 kJ, Wcycle = 200 kJ. (d) COPR = 6
Answers: 3
Engineering, 04.07.2019 18:10
Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.
Answers: 1
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
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
Answers: 2
Engineering, 04.07.2019 18:20
Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false
Answers: 3
5.29 A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir...
Mathematics, 22.06.2019 02:30
History, 22.06.2019 02:30
History, 22.06.2019 02:30
Chemistry, 22.06.2019 02:30
History, 22.06.2019 02:30
History, 22.06.2019 02:30