Question
A room is initially at the outdoor temperature of 25C. Now a large fan that consumes 200 W of electricity when running is turned on.
A room is initially at the outdoor temperature of 25°C. Now a large fan that consumes 200 W of electricity when running is turned on. The heat transfer rate between the room and the outdoor air is given as Q˙= UA(Ti 2 To) where U = 6 W/m2·°C is the overall heat transfer coefficient, A = 30 m2 is the exposed surface area of the room, and Ti and To are the indoor and outdoor air temperatures, respectively. Determine the indoor air temperature when steady operating conditions are established.
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Thermodynamics An Engineering Approach
Authors: Yunus A. Cengel, Michael A. Boles
8th edition
73398179, 978-0073398174
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