1. A cross-flow heat exchanger is used to transfer heat from a stream of saturated water at 100 °C to a stream of air entering at 20 °C. The UA value of the heat exchanger is 5000 W/K. Develop an equation for the outlet temperature of the air as a function of the mass flow rate of air through the heat exchanger. Plot the outlet air temperature vs. mass flow rate of air from 0.5 kg/s to 20 kg/s.

1. A cross-flow heat exchanger is used to transfer heat from a stream of saturated water at 100 °C to a stream of air entering at 20 °C. The UA value of the heat exchanger is 5000 W/K. Develop an equation for the outlet temperature of the air as a function of the mass flow rate of air through the heat exchanger. Plot the outlet air temperature vs. mass flow rate of air from 0.5 kg/s to 20 kg/s.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.42P

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