A 15 cm 20 cm circuit board is being cooled by forced convection of air at
Question:
A 15 cm × 20 cm circuit board is being cooled by forced convection of air at 1 atm. The heat from the circuit board is estimated to be 1000 W/m2. If the air stream velocity is 3 m/s and the shear stress of the circuit board surface is 0.075 N/m2, determine the temperature difference between the circuit board surface temperature and the airstream temperature. Evaluate the fluid properties at 40°C.
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Step by Step Answer:
To determine the temperature difference between the circuit board surface temperature and the airstream temperature we can use the convective heat tra...View the full answer
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Related Book For 
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
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