Reconsider Prob. 7–97. Using the EES (or other) software, evaluate the hot air velocity on the convection heat transfer coefficient. By varying the hot air velocity from 0.15 to 0.35 m/s, plot the convection heat transfer coefficient as a function of air velocity.

Data from problem 97

A coated sheet is being dried with hot air blowing in cross  flow on the sheet surface. The surface temperature of the sheet  is constant at 90°C, while the air velocity and temperature are 0.3 m/s and 110°C, respectively. The length of the sheet subjected to the blowing hot air is 1 m long. Determine the convection heat transfer coefficient and the heat flux added to the sheet surface. Treat the coated sheet as a vertical plate in cross flow.

Transcribed Image Text:

Coated sheet 90°C Hot air 110°C, 0.3 m/s