. A double-pipe counter-flow heat exchanger is to cool ethylene glycol (Cp 2560 J/kg - 'C) flowing at a rate of 3.5 kg/s from 80°C to 40c by water (Cp 4180 J/kg "C) that enters at 20°C and leaves at 55°C. The overall heat transfer coefficient based on the inner surface area of the tube is 250 W/m2 . "C. Determine (a) the rate of heat transfer, (b) the mass flow rate of water, and (c) the heat transfer surface area on the inner side of the tube.

. A double-pipe counter-flow heat exchanger is to cool ethylene glycol (Cp 2560 J/kg - 'C) flowing at a rate of 3.5 kg/s from 80°C to 40c by water (Cp 4180 J/kg "C) that enters at 20°C and leaves at 55°C. The overall heat transfer coefficient based on the inner surface area of the tube is 250 W/m2 . "C. Determine (a) the rate of heat transfer, (b) the mass flow rate of water, and (c) the heat transfer surface area on the inner side of the tube.

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 10.32P

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