A small disk 5 mm in diameter is positioned at the center of an isothermal hemispherical enclosure.
Question:
A small disk 5 mm in diameter is positioned at the center of an isothermal hemispherical enclosure. The disk is diffuse and gray with an emissivity of 0.7 and is maintained at 900 K. The hemispherical enclosure, maintained at 300 K, has a radius of 100 mm and an emissivity of 0.85. Calculate the radiant power leaving an aperture of diameter 2 mm located on the enclosure as shown.
Transcribed Image Text:
Aperture R= 100 mm 45 Hemispherical enclosure Disk
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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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