Consider an acrylic sheet of thickness L = 5.2 mm that is used to coat a hot, isothermal metal substrate at T = = 300°C. The properties of the acrylic are p = 1990 kg/m³, c = 1470 J/kg-K, and k 0.21 W/m.K. Neglecting the thermal contact resistance between the acrylic and the metal substrate, determine how long, in s, it will take for the insulated back side of the acrylic to reach its softening temperature, Tsoft = 90°C. The initial acrylic temperature is T, = 20°C. *

Consider an acrylic sheet of thickness L = 5.2 mm that is used to coat a hot, isothermal metal substrate at T = = 300°C. The properties of the acrylic are p = 1990 kg/m³, c = 1470 J/kg-K, and k 0.21 W/m.K. Neglecting the thermal contact resistance between the acrylic and the metal substrate, determine how long, in s, it will take for the insulated back side of the acrylic to reach its softening temperature, Tsoft = 90°C. The initial acrylic temperature is T, = 20°C. *

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.47P

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