Engineering, 23.11.2019 03:31 litttyyyu33411
Consider a pump operating adiabatically at steady state. liquid water enters at 20◦c, 100 kpa with a mass flow rate of 53 kg/min. the pressure at the pump exit is 5 mpa. the pump isentropic efficiency is 75%. assumer negligible changes in kinetic and potential energy and the water behaves as an incompressible substance. determine the power required by the pump, in kw.
Answers: 1
Engineering, 04.07.2019 08:10
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Engineering, 04.07.2019 18:10
Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false
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Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Consider a pump operating adiabatically at steady state. liquid water enters at 20◦c, 100 kpa with a...
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