7.20- Hot exhaust gases of a stationary diesel engine are to be used to generate steam in an evaporator. Exhaust gases (Cp = 1051 J/kg •C°) enter the heat exchanger at 550C° at a rate of 0.25 kg/s while water enters as saturated liquid and evaporates at 200C° (hfg = 1941 kJ/kg). The heat transfer surface area of the heat exchanger based on water side is 0.5m? and overall heat transfer coefficient is 1780 W/m? ·C°. Determine the rate of heat transfer, the exit temperature of exhaust gases, and the rate of evaporation of water. Answers: 88.85 kW, 211.8C°, 0.0458 kg/s

7.20- Hot exhaust gases of a stationary diesel engine are to be used to generate steam in an evaporator. Exhaust gases (Cp = 1051 J/kg •C°) enter the heat exchanger at 550C° at a rate of 0.25 kg/s while water enters as saturated liquid and evaporates at 200C° (hfg = 1941 kJ/kg). The heat transfer surface area of the heat exchanger based on water side is 0.5m? and overall heat transfer coefficient is 1780 W/m? ·C°. Determine the rate of heat transfer, the exit temperature of exhaust gases, and the rate of evaporation of water. Answers: 88.85 kW, 211.8C°, 0.0458 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.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.1DP

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