A white flying saucer made of aluminum is in outer space, and the sun is shining on thetop surface of it. It has a surface area of 1 m² per side. The absorptivity (a) for whitepaint is 0.3 to 0.5 for solar radiation (H&H Tbl. 4.1), so a good assumption would be touse the average of 0.4. The emissivity (ɛ) for white paint in the 0-38°C range is 0.9.Incoming solar radiation intensity in outer space is 1353 W/m² (p. 12 in H&H). You mayassume that there is no conductive or convective heat loss from the plate, as it is almost avacuum in outer space.Calculate the equilibrium temperature of the plate, based on the incoming solar radiationand the outgoing radiation from the plate back to outer space.

DefinitionThermal radiation:This topic investigates how electromagnetic waves transmit heat across…

Answered: Calculate the equilibrium temperature…

Calculate the equilibrium temperature of the plate, based on the incoming solar radiation and the outgoing radiation from the plate back to outer space.

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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