Consider an opaque, diffuse surface whose spectral reflectivity varies with wavelength as shown. The surface is at 750 K, and irradiation on one side varies with wavelength as shown. The other side of the surface is insulated. Assume that p₁ = 0.8 and p₂ = 0.4. P₂ P₁ P₂ 01 2 3 λ (μm) Determine the total absorptivity of the surface. α = 0.52 Determine the total emissivity of the surface. E = i 0.52 st 4 Determine the net radiative heat flux to the surface, in W/m². grad i 2500 W/m² G₂ (W/m²um) 500 0 1 2 3 4 5 6 7 8 λ (μm)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Your answer is partially correct.
Consider an opaque, diffuse surface whose spectral reflectivity varies with wavelength as shown. The surface is at 750 K, and
irradiation on one side varies with wavelength as shown. The other side of the surface is insulated.
Assume that p₁ = 0.8 and p₂ = 0.4.
α = 0.52
P₁
દ =
0
Determine the total absorptivity of the surface.
1 2 3
λ (um)
Determine the total emissivity of the surface.
0.52
4
Determine the net radiative heat flux to the surface, in W/m².
grad = i 2500
W/m²
Physical Properties Mathematical Functions
G₂(W/m² μm)
500
0
1
2
3 4 5 6 7 8
λ (μm)
Transcribed Image Text:Your answer is partially correct. Consider an opaque, diffuse surface whose spectral reflectivity varies with wavelength as shown. The surface is at 750 K, and irradiation on one side varies with wavelength as shown. The other side of the surface is insulated. Assume that p₁ = 0.8 and p₂ = 0.4. α = 0.52 P₁ દ = 0 Determine the total absorptivity of the surface. 1 2 3 λ (um) Determine the total emissivity of the surface. 0.52 4 Determine the net radiative heat flux to the surface, in W/m². grad = i 2500 W/m² Physical Properties Mathematical Functions G₂(W/m² μm) 500 0 1 2 3 4 5 6 7 8 λ (μm)
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