Consider a person whose exposed surface area is 1.5 m2, emissivity is 0.5, and surface temperature is 28°C. Determine the rate of heat loss from that person by radiation in a large room having walls at a temperature of two situations of 280 K and 300 K. Use Stefan-Boltzmann constant as 5.67 x 108 W/m2-K. [Pertimbangkan seseorang dengan luas permukaan yang terdedah sebanyak 1.5 m, keberpancaran sebanyak 0.5, dan suhu permukaan 28°C. Tentukan kadar kehilangan haba daripadanya disebabkan sinaran di dalam bilik besar dengan dinding suhu pada dua situasi iaitu 280 K dan 300 K. Gunakan pemalar Stefan-Boltzmann sebagai 5.67 x 10 W/m' K',] Briefly discuss the radiation heat transfer with respect to temperature change based from your answer in Question 3(c). [Bincangkan dengan ringkas kadar perpindahan haba disebabkan perubahan suhu berdasarkan jawapan anda pada Soalan 3(c).]

Consider a person whose exposed surface area is 1.5 m2, emissivity is 0.5, and surface temperature is 28°C. Determine the rate of heat loss from that person by radiation in a large room having walls at a temperature of two situations of 280 K and 300 K. Use Stefan-Boltzmann constant as 5.67 x 108 W/m2-K. [Pertimbangkan seseorang dengan luas permukaan yang terdedah sebanyak 1.5 m, keberpancaran sebanyak 0.5, dan suhu permukaan 28°C. Tentukan kadar kehilangan haba daripadanya disebabkan sinaran di dalam bilik besar dengan dinding suhu pada dua situasi iaitu 280 K dan 300 K. Gunakan pemalar Stefan-Boltzmann sebagai 5.67 x 10 W/m' K',] Briefly discuss the radiation heat transfer with respect to temperature change based from your answer in Question 3(c). [Bincangkan dengan ringkas kadar perpindahan haba disebabkan perubahan suhu berdasarkan jawapan anda pada Soalan 3(c).]

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 8.33P

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