jessygonzalez1712 jessygonzalez1712

15-12-2022
Engineering

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4. you are comparing zirconia and tungsten filaments operating at 4000 k. assume diffuse emitter. the spectral emissivity with varying wavelength is illustrated in the plot. σ= 5.67×10-8 W/m-2 K-4,
1.Calculate the total emissivity of zirconia.
2.Calculate the total emissivity of tungsten.
3.What is the spectral emissive power of tungsten filament at λ= 3 µm, W/m um?

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