3 Brass cube "p = 8530 kg/m , c= 380 J/kg.°C, k = 110 W/m.°C, a = 33.9E-6 W/m.°C", side length = 9 mm, are annealed by heating them first to 929°C in a furnace and then allowing them to cool slowly to 130°C in ambient air at 28°C. If the average heat transfer coefficient is 17.3 W/m .°C, how long will the annealing process will (seconds)? %3D

3 Brass cube "p = 8530 kg/m , c= 380 J/kg.°C, k = 110 W/m.°C, a = 33.9E-6 W/m.°C", side length = 9 mm, are annealed by heating them first to 929°C in a furnace and then allowing them to cool slowly to 130°C in ambient air at 28°C. If the average heat transfer coefficient is 17.3 W/m .°C, how long will the annealing process will (seconds)? %3D

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 8.17P

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