In many manufacturing plants, individuals are often working around high temperature surfaces.Exposed hot surfaces that are potential for thermal burns on human skin tissue are considered tobe hazards in the workplace. Metallic surface of temperature above 70°C is consideredextremely high temperature in the context of thermal burn, where skin tissue damage can occurinstantaneously upon contact with the hot surface.. Consider an AISI 1010 carbon steel strip (p =7832 kg/m3) of 2 mm thick and 3 cm wide that is conveyed into a chamber to be cooled at aconstant speed of 1 m/s. The steel strip enters the cooling chamber at 597 C. Determine theamount of heat rate that needed to be removed so that the steel strip exits the chamber at 47°Cto avoid instantaneous themal burn upon accidental contact with skin tissue. Discuss how theconveyance speed can affect the neat rate needed to be removed from the steel strip in thecooling chamber.FIGURE P1-25Cooling chamberSteel stripIm/s=47°CTn=597°C

We haveTavg=Tin+Tout2Tavg=597+472Tavg=322°CTavg=322°C+273KTavg=595 KNow form table A-3cp for carbon…

In many manufacturing plants, individuals are often working around high temperature surfaces. Exposed hot surfaces that are potential for thermal burns on human skin tissue are considered to be hazards in the workplace. Metallic surface of temperature above 70°C is considered extremely high temperature in the context of thermal burn, where skin tissue damage can occur instantaneously upon contact with the hot surface. Consider an AISI 1010 carbon steel strip (p =D 7832 kg/m3) of 2 mm thick and 3 cm wide that is conveyed into a chamber to be cooled at a constant speed of 1 m/s. The steel strip enters the cooling chamber at 597°C. Determine the amount of heat rate that needed to be removed so that the steel strip exits the chamber at 47°C to avoid instantaneous thermal burn upon accidental contact with skin tissue. Discuss how the conveyance speed can affect the heat rate needed to be removed from the steel strip in the cooling chamber. FIGURE P1-25 Cooling chamber Steel strip 1 m/s Tn= 597°C out

In many manufacturing plants, individuals are often working around high temperature surfaces. Exposed hot surfaces that are potential for thermal burns on human skin tissue are considered to be hazards in the workplace. Metallic surface of temperature above 70°C is considered extremely high temperature in the context of thermal burn, where skin tissue damage can occur instantaneously upon contact with the hot surface. Consider an AISI 1010 carbon steel strip (p =D 7832 kg/m3) of 2 mm thick and 3 cm wide that is conveyed into a chamber to be cooled at a constant speed of 1 m/s. The steel strip enters the cooling chamber at 597°C. Determine the amount of heat rate that needed to be removed so that the steel strip exits the chamber at 47°C to avoid instantaneous thermal burn upon accidental contact with skin tissue. Discuss how the conveyance speed can affect the heat rate needed to be removed from the steel strip in the cooling chamber. FIGURE P1-25 Cooling chamber Steel strip 1 m/s Tn= 597°C out

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 8.8P

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