Engineering, 26.11.2019 19:31 alyxkellar06
Astream of air at 500°c and 835 torr with a dew point of 30°c flowing at a rate of 1515 l/s is to be cooled in a sprayed cooler. a fine mist of liquid water at 25°c is sprayed into the hot air at a rate of 110.0 g/s and evaporates completely. the cooled air emerges at 1 atm.
a. calculate the final temperature of the emerging air stream, assuming that the process is adiabatic. (suggestion: derive expressions for the enthalpies of dry air and water at the outlet air temperature, substitute them into the energy balance, and use a spreadsheet to solve the resulting fourth-order polynomial equation)
b. at what rate (kw) is heat transferred from the hot air feed stream in the spray cooler? what becomes of this heat?
Answers: 2
Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
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Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
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