In a single-pass counterflow heat exchanger, 4536 kg/h of water enter at 15?C and cool 9071 kg/h

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In a single-pass counterflow heat exchanger, 4536 kg/h of water enter at 15?C and cool 9071 kg/h of an oil having a specific heat of 2093 J/(kg ?C) from 93 to 65?C. If the overall heat transfer coefficient is 284 W/(m2 ?C), determine the surface area required.GIVENOil and water in a single-pass counterflow heat exchangerWater flow rate (mw) = 4536 kg/h = 1.26 kg/sOil flow rate (mo) = 9071 kg/h = 2.52 kg/sInlet temperaturesWater (Tw,in) = 15?COil (To,in) = 93?COil outlet temperature (To,out) = 65?COil specific heat (cpo) = 2093 J/(kg ?C)Overall heat transfer coefficient (U) = 284 W/(m2 ?C)ASSUMPTIONSSteady stateConstant thermalproperties

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Principles of heat transfer

ISBN: 978-0495667704

7th Edition

Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn

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