The tungsten filament described in Problem 12.29 dissipates 75 W in an evacuated spherical light bulb of
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The tungsten filament described in Problem 12.29 dissipates 75 W in an evacuated spherical light bulb of 75-mm diameter. The bulb is in quiescent air and large surroundings at a temperature of 25°C. The reflectivity of the glass is negligible, while the spectral absorptivity is characterized by the following distribution. What is the steady-state temperature of the glass bulb for a tungsten filament operating at 3000 K?
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
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