an oil heat 150 kg of oil per minute from 30 C to 120 C in a counterflow heat exchanger. the average specific heat of the oil is 3.5 kj per cu. Exhaust gases used for heating enter the heater with 300 kg/min and an initial temperature of 220 C. the overall heat transfer coefficient is 84 watts per m per C. determine the heat surface area in m. (hint: use LMTD)

an oil heat 150 kg of oil per minute from 30 C to 120 C in a counterflow heat exchanger. the average specific heat of the oil is 3.5 kj per cu. Exhaust gases used for heating enter the heater with 300 kg/min and an initial temperature of 220 C. the overall heat transfer coefficient is 84 watts per m per C. determine the heat surface area in m. (hint: use LMTD)

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 10.23P

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