Question

Air at 20°C with a convection heat transfer coefficient of 25 W/m²·K blows over a horizontal steel hot plate (k = 43 W/m·K). The surface area of the plate is 0.38 m² with a thickness of 2 cm. The plate surface is maintained at a constant temperature of Ts = 250°C and the plate loses 300 W from its surface by radiation. Calculate the inside plate temperature (Ti).

Name: air at 20c with a convection heat transfer coefficient of 25 wm2k blows over a horizontal steel hot plate k 43 wmk the surface area of the plate is 038 m2 with a thickness of 2 cm the plate 99587
Uploaded: 2022-10-02T21:08:23-08:00
Duration: 1 min 7 s
Channel: Susan Hallstrom
Description: air at 20c with a convection heat transfer coefficient of 25 wm2k blows over a horizontal steel hot plate k 43 wmk the surface area of the plate is 038 m2 with a thickness of 2 cm the plate 99587

          Air at 20°C with a convection heat transfer coefficient of 25 W/m²·K blows over a horizontal steel hot plate (k = 43 W/m·K). The surface area of the plate is 0.38 m² with a thickness of 2 cm. The plate surface is maintained at a constant temperature of Ts = 250°C and the plate loses 300 W from its surface by radiation. Calculate the inside plate temperature (Ti).

Added by Wendy J.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Susan Hallstrom

10/02/2022

Step 1

38 m² Ts = 250°C Substitute the values into the formula: q_conv = 25 * 0.38 * (250 - Ti) q_conv = 9.5 * (250 - Ti) q_conv = 2375 - 9.5Ti Show more…

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Air at 20°C with a convection heat transfer coefficient of 25 W/m²·K blows over a horizontal steel hot plate (k = 43 W/m·K). The surface area of the plate is 0.38 m² with a thickness of 2 cm. The plate surface is maintained at a constant temperature of Ts = 250°C and the plate loses 300 W from its surface by radiation. Calculate the inside plate temperature (Ti).