A furnace with an aperture of 30 mm diameter and emissive power of 4x10^5 W/m^2 is used to calibrate a heat flux gage having a sensitive area of 2x10^-5 m^2 At what distance, measured along a normal from the aperture, should the gage be positioned to receive irradiation of 1000 W/m^2 ? If the gage is tilted off normal by 20^o what will be its irradiation?
A furnace with an aperture of 30 mm diameter and emissive power of 4x10^5 W/m^2 is used to calibrate a heat flux gage having a sensitive area of 2x10^-5 m^2 At what distance, measured along a normal from the aperture, should the gage be positioned to receive irradiation of 1000 W/m^2 ? If the gage is tilted off normal by 20^o what will be its irradiation?
Understanding Motor Controls
4th Edition
ISBN:9781337798686
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter45: The Pn Junction
Section: Chapter Questions
Problem 1RQ
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A furnace with an aperture of 30 mm diameter and emissive power of 4x10^5 W/m^2 is used to calibrate a heat flux gage having a sensitive area of 2x10^-5 m^2
At what distance, measured along a normal from the aperture, should the gage be positioned to receive irradiation of 1000 W/m^2 ?
If the gage is tilted off normal by 20^o what will be its irradiation?
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