1- Assume that the sun is a blackbody at 5800 K. What is the wavelength at which the maximum emissive power occurs? Calculate the radiation fraction in the ultraviolet (A<0.38 um), visible (0.38 um<1 <0.78 um), and the infrared (A > 0.78 um) portions of the wavelength spectrum.

1- Assume that the sun is a blackbody at 5800 K. What is the wavelength at which the maximum emissive power occurs? Calculate the radiation fraction in the ultraviolet (A<0.38 um), visible (0.38 um<1 <0.78 um), and the infrared (A > 0.78 um) portions of the wavelength spectrum.

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 11.2P: A tungsten filament is heated to 2700 K. At what wavelength is the maximum amount of radiation...

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1- Assume that the sun is a blackbody at 5800 K.
What is the wavelength at which the maximum emissive power occurs?
- Calculate the radiation fraction in the ultraviolet (A< 0.38 µm), visible (0.38 um< 1 < 0.78 um),
and the infrared (A > 0.78 um) portions of the wavelength spectrum.

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