=+14-2. A heat exchanger is to be designed to heat 4000 cfm (1.9 m3/s) of air from
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=+14-2.
A heat exchanger is to be designed to heat 4000 cfm (1.9 m3/s) of air from 50 F (10 C) to 110 F
(43 C) using hot water at 180 F (82 C) in a cross-flow arrangement with fluids unmixed. The flow rate of the hot water is 25 gpm (1.6 L/s). Assume the overall heat-transfer coefficient based on the air side is 10 Btu/(hr-ft2-F) [57 W/(m2-C)], and determine the air-side surface area using
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Related Book For 
Heating Ventilating And Air Conditioning Analysis And Design
ISBN: 9780471470151
6th Edition
Authors: Faye C. McQuiston, Jerald D. Parker, Jeffrey D. Spitler
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