Determine the fraction of the total, hemispherical emissive power that leaves a diffuse surface in the...
1.0 3) A diffuse surface at T = 1200K.has the spectral, hemispherical emissivity illustrated. Determine the following: o. E2 00 2. = 2 um 12 = 5 um 3 a. the total, hemispherical emissivity is a = (+0.001) E1 0.4 b. the total emissive power is E = kW/m² (+ 0.1%) 0 0 2 5 2. (um)
2. (20 points) A certain surface maintained at 1400 K has the following spectral emissive characteristics: ελ-0.08 0<λ<0.6 μm 0.6 < λ < 5 μm 0.4 ελ-0.7 Calculate the emissive power of the surface
1.0 A diffuse surface at T = (9400) K. has the spectral, hemispherical emissivity illustrated. Determine the following: E2 0.8 2. = 2 um 12 = 5 um a. the total, hemispherical emissivity is ε = (+0.001) E, () E1 0.4 b. the total emissive power is E = kW/m² (+0.1%) 0 2 5 (um)
1.0 A diffuse surface at T = (2200) K. has the spectral, hemispherical emissivity illustrated. Determine the following: 0.8 21 = 2 pm 12 = 5 um a. the total, hemispherical emissivity is ε = (+0.001) E, () E1 0.4 b. the total emissive power is E = kW/m² (+ 0.1%) 0 2 5 (um)
= 21 1.0 3) A diffuse surface at T = (600 + 200C)K.has the spectral, hemispherical emissivity illustrated. Determine the following: 0.8 2,-2 m 2 - 5 m (2) a. the total, hemispherical emissivity is ε = (+0.001) 0.4 b. the total emissive power is E = kW/m2 (+0.1%) 2 5 2. (um)
1.0 3) A diffuse surface at T = (600 + 200)K.has the spectral, hemispherical emissivity illustrated. Determine the following: 0.8 2 - 2 2 - 5 3 a. the total, hemispherical emissivity is a = (+0.001) 0.4 b. the total emissive power is E = kW/m2 (+0.1%) 0 5 2. Gum
The spectral distribution of the radiation emitted by a diffuse surface may be approximated as fellows . 200 100 10 15 20 (a) What is the total emissive power? (b) What is the total intensity of the radiation emitted in the normal direction and at an angle of 30° from the normal? (c) Determine the fraction of the emissive power leaving the surface in the direction π/4 θ Tt/2.
Problem 3 (10 points) For a blackbody at 2250 K that is in air, find: (b) the hemispherical total emissive power (kW Im2). (c) the emissive power in the spectral range between o 2 and 8um. (d) the ratio of spectral intensity at no-2 μm to that at no-8 μm.
Problem 3 (10 points) For a blackbody at 2250 K that is in air, find: (b) the hemispherical total emissive power (kW Im2). (c) the emissive power in the spectral...
1 6. Using the power series = Σ c" |x | < 1, find a power series about O for 1 х n=0 1 and state the radius of convergence. (2 - x)2
3.13 Determine the DTFT of the two-sided sequence y[n] = a1",jal < 1.