A 5-m-long strip of sheet metal is being transported on a conveyor at a velocity of 5 m/s, while the coating on the upper surface is being cured by infrared lamps. The coating on the upper surface of the metal strip has an absorptivity of 0.6 and an emissivity of 0.7, while the surrounding ambient air temperature is 25°C. Radiation heat transfer occurs only on the upper surface, while convection hea transfer occurs on both upper and lower surfaces of the sheet metal. If the infrared lamps supply a constant heat flux of 4950 W/m2. determine the surface temperature of the sheet metal. Evaluate the properties of air at 80°C. The properties of air at 80°C are k= 0.02953 W/m K, v= 2.097 × 10-5 m²/s, and Pr = 0.7154. (Round the final answer to the nearest whole number,.) The surface temperature (Ts) of the sheet metal is | |K.
A 5-m-long strip of sheet metal is being transported on a conveyor at a velocity of 5 m/s, while the coating on the upper surface is being cured by infrared lamps. The coating on the upper surface of the metal strip has an absorptivity of 0.6 and an emissivity of 0.7, while the surrounding ambient air temperature is 25°C. Radiation heat transfer occurs only on the upper surface, while convection hea transfer occurs on both upper and lower surfaces of the sheet metal. If the infrared lamps supply a constant heat flux of 4950 W/m2. determine the surface temperature of the sheet metal. Evaluate the properties of air at 80°C. The properties of air at 80°C are k= 0.02953 W/m K, v= 2.097 × 10-5 m²/s, and Pr = 0.7154. (Round the final answer to the nearest whole number,.) The surface temperature (Ts) of the sheet metal is | |K.
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.48P: A horizontal, 3-mm-thick flat-copper plate, 1-m long and 0.5-m wide, is exposed in air at 27C to...
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