Engineering, 14.09.2019 01:30, xandrygentile
Aclosed piston-cylinder device initially contains one kilogram of water vapor at an absolute pressure of 3 bar and a temperature of 160 c (state 1). heat transfer occurs so that the water vapor expands via a process during which pv^(1.2) = constant and the absolute pressure inside the cylinder drops to 1 bar (state 2). (a) determine the initial and final specific volume (m3 /kg) of water.(b) calculate the work (kj) during the process.(c) find the heat transfer (kj) during the process.(d) show the expansion process on t-v diagram. label states, show property values, and indicate appropriate lines of constant pressure.
Answers: 2
Engineering, 04.07.2019 03:10, lauriepdx17
What precautions should you take to prevent injuries when dealing with heavy loads?
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Engineering, 04.07.2019 18:10, redrosesxx
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
Engineering, 04.07.2019 18:10, QueenLife4869
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Aclosed piston-cylinder device initially contains one kilogram of water vapor at an absolute pressur...
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