Two plates spaced 150 mm apart are maintained at 1000°C and 70°C. The heat transfer will take place mainly by
A)convection
B)free convection
C)forced convection
D)radiation
E)radiation and convection.

Question

Quizplus · Accepted Answer

Radiation is the dominant mode of heat transfer between two surfaces at significantly different temperatures, especially in a vacuum or when the medium between them does not significantly affect the heat transfer, as is likely the case here with a large temperature difference and no specification of a fluid medium facilitating convection.

Two Plates Spaced 150 Mm Apart Are Maintained at 1000°C