as fast as. Your answer is partially correct.Consider an opaque, diffuse surface whose spectral reflectivity varies with wavelength as shown. The surface is at 750 K, andirradiation 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 = 0.52P₁દ =0Determine the total absorptivity of the surface.1 2 3λ (um)Determine the total emissivity of the surface.0.524Determine the net radiative heat flux to the surface, in W/m².grad = i 2500W/m²Physical Properties Mathematical FunctionsG₂(W/m² μm)5000123 4 5 6 7 8λ (μm)

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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)

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)

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.65P

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