# Everyday Heat Transfer Problems: Sensitivities to Governing Variables

By
M. Kemal Atesmen
M. Kemal Atesmen
Search for other works by this author on:
ISBN:
9780791802830
No. of Pages:
238
Publisher:
ASME Press
Publication date:
2009

Cooling the walls of a combustion chamber containing gases at high temperatures, i.e., 1000°C, results in parallel modes of heat transfer, convection and radiation. This problem can be approached by assuming one-dimensional steady-state heat transfer in rectangular coordinates and with constant thermophysical properties.

Convection heat transfer per unit area, from hot gases to the hot side of a wall that separates the cold medium and the hot gases, can be written as:
$(Q∕A)convection−hcg(Tg−Twh)$
Radiation heat transfer per unit area from hot gases which are assumed to behave as gray bodies to the hot side of a wall can be written as:
$(Q∕A)radiation−hrg(Tg−Twh)==εgσ(Tg4−Twh4)$
This content is only available via PDF.