A 0.5-m high, O.7-m wide oven door oriented vertically reaches an average surface temperature of 32°C during operation. The door has an emissivity of 1.0 and the surroundings of the room are at a temperature of 22°C. To compute for the Nusselt number of the air flow, what is the exact value of the temperature in °C on which the air properties should be based?

A 0.5-m high, O.7-m wide oven door oriented vertically reaches an average surface temperature of 32°C during operation. The door has an emissivity of 1.0 and the surroundings of the room are at a temperature of 22°C. To compute for the Nusselt number of the air flow, what is the exact value of the temperature in °C on which the air properties should be based?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.34P

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