Sipho’s mother is making a fire in the stove inside a shack using coal. A fan is used to extract the flue gas from the fire via a chimney made of zinc material. The wall thickness of Chimney is L=4mm and the wall temperature of the chimney on the flue gas side is T_si=60˚C. Sipho, playing outside next to the chimney experiences an ambient temperature of 20˚C. The surrounding temperature is T_sur=35˚C and the emissivity is ε=0.95. Assume the convection coefficient is 20W/m2K and the chimney is grey material. Under these conditions determine the outer surface (air side) temperature T_so=? of the chimney.
Sipho’s mother is making a fire in the stove inside a shack using coal. A fan is used to extract the flue gas from the fire via a chimney made of zinc material. The wall thickness of Chimney is L=4mm and the wall temperature of the chimney on the flue gas side is T_si=60˚C. Sipho, playing outside next to the chimney experiences an ambient temperature of 20˚C. The surrounding temperature is T_sur=35˚C and the emissivity is ε=0.95. Assume the convection coefficient is 20W/m2K and the chimney is grey material. Under these conditions determine the outer surface (air side) temperature T_so=? of the chimney.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Sipho’s mother is making a fire in the stove inside a shack using coal. A fan is used to extract the flue gas
from the fire via a chimney made of zinc material. The wall thickness of Chimney is L=4mm and the wall
temperature of the chimney on the flue gas side is T_si=60˚C. Sipho, playing outside next to the chimney
experiences an ambient temperature of 20˚C. The surrounding temperature is T_sur=35˚C and the emissivity
is ε=0.95. Assume the convection coefficient is 20W/m2K and the chimney is grey material.
Under these conditions determine the outer surface (air side) temperature T_so=? of the chimney.
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