Engineering, 11.12.2019 19:31 evelynalper08
Problem 9.020 a thin-walled container ( 200 mm) with a hot process fluid at [infinity] 55°c is placed in a quiescent, cold water bath at [infinity] 10°c. heat transfer at the inner and outer surfaces of the container may be approximated by free convection from a vertical plate. determine the overall heat transfer coefficient between the hot process fluid and the cold water bath, in w/m2·k. assume the properties of the hot process fluid are those of water. initially assume [infinity] [infinity] and evaluate the properties of the hot process fluid and the cold water bath at the film temperatures for the respective container surfaces. use the churchill and chu correlation for nusselt number on a vertical plate.
Answers: 2
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Engineering, 04.07.2019 18:10, yasminothman02
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
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Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
Problem 9.020 a thin-walled container ( 200 mm) with a hot process fluid at [infinity] 55°c is place...
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