Calculate the (τα) product for a two-glass-cover collector (KL = 0.0370 per plate) with a flat black collector absorber for radiation incident on the collector at an angle of (a) 25° and (b) 60°. εp = 0.96.

Calculate the (τα) product for a two-glass-cover collector (KL = 0.0370 per plate) with a flat black collector absorber for radiation incident on the collector at an angle of (a) 25° and (b) 60°. εp = 0.96.

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.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.44P

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Radiation

Radiation can be described as the energy in the form of a particular matter or electromagnetic waves traveling in the air and can be in the form of light, sound, and heat. Radiation can be detected through special instruments like X-rays. The radiation from a cooler object is less intense as compared to the radiation from hot objects.

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