Consider a 6 in-diameter spherical ball at 366 °C suspended in air. Assuming the ball closely approximates a blackbody, determine (a) the total blackbody emissive (Eb) power, (b) the total amount of radiation emitted by the ball in 11 min. K Wim2 m2 kJ

Consider a 6 in-diameter spherical ball at 366 °C suspended in air. Assuming the ball closely approximates a blackbody, determine (a) the total blackbody emissive (Eb) power, (b) the total amount of radiation emitted by the ball in 11 min. K Wim2 m2 kJ

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 11.24P

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Concept explainers

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.

Question

Consider a 6 in-diameter spherical ball at 366 °C suspended in air. Assuming the ball closely approximates a blackbody, determine (a) the total blackbody
emissive (Eb) power, (b) the total amount of radiation emitted by the ball in 11 min.
Wim2
m2
kJ

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