Example 7 A zirconia-based ceramic has the spectral, hemispherical emissivity shown below and is being considered for use as the filament of a light bulb. What is the total hemispherical emissivity of a zirconia filament operating at 3000 K? 13 1.0 0.8 0.2 0 0 1 0.4 0.7 2 λ(μm) Zirconia 3 4

Example 7 A zirconia-based ceramic has the spectral, hemispherical emissivity shown below and is being considered for use as the filament of a light bulb. What is the total hemispherical emissivity of a zirconia filament operating at 3000 K? 13 1.0 0.8 0.2 0 0 1 0.4 0.7 2 λ(μm) Zirconia 3 4

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Example 7
A zirconia-based ceramic has the spectral, hemispherical emissivity shown below and is
being considered for use as the filament of a light bulb. What is the total hemispherical
emissivity of a zirconia filament operating at 3000 K?
V3
1.0
0.8
0.2
0.4
0.7
2
λ (μm)
Zirconia
4

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