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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
(CD-ROM)
A concentric tube heat exchanger for cooling lubricating oil is comprised of a thin-walled inner tube of 25-mm diameter carrying water and an outer tube of 45-mm diameter carrying the oil. The exchanger operates in counterflow with an overall heat transfer coefficient of 60 W/m2 K and the tabulated average properties.


(a) If the outlet temperature of the oil is 60°C, determine the total heat transfer and the outlet temperature of the water.
(b) Determine the length required for the heat exchanger.
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