Engineering, 11.07.2019 02:30 nicole5918
Saturated refrigerant-12 vapor at 120 kpa is compressed reversibly in an adiabatic compressor to 800 kpa. determine the work input to the compressor. what would your answer be if the refrigerant were first condensed at constant pressure before it was compressed?
Answers: 2
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Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
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For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
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Engineering, 04.07.2019 18:10
The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false
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Saturated refrigerant-12 vapor at 120 kpa is compressed reversibly in an adiabatic compressor to 800...
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