A furnace with an aperture of 20 mm diameter and emissive power of 3 72 x 10 5 W m 2 is used to calibrate a heat flux gage having a sensitive area of 1 6 x 10 5 m 2 (a) At what distance, measured along a normal from the aperture, should the gage be positioned to receive irradiation of 1000 W m 2 (b...

KNOWN Furnace with prescribed aperture and emissive power FIND a Position of gauge ...

A furnace with an aperture of 20-mm diameter and emissive power of 3.72 x 10 5 W/m

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A furnace with an aperture of 20-mm diameter and emissive power of 3.72 x 10⁵ W/m² is used to calibrate a heat flux gage having a sensitive area of 1.6 x 10^-5 m².

(a) At what distance, measured along a normal from the aperture, should the gage be positioned to receive irradiation of 1000 W/m²?

(b) If the gage is tilted off normal by 20°, what will be its irradiation?

(c) For tilt angles of 0, 20, and 60°, plot the gage irradiation as a function of the separation distance for values ranging from 100 to 300 mm.

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Fundamentals of Heat and Mass Transfer

ISBN: 978-0471457282

6th Edition

Authors: Incropera, Dewitt, Bergman, Lavine

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Question Posted: Mar 02, 2011 12:59 AM

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A furnace with an aperture of 20-mm diameter and emissive power of 3.72 x 10 5 W/m

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Fundamentals of Heat and Mass Transfer

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