A 4 m thick steel plate initially at 225 °C. Suddenly, both surfaces are exposed to an ambient at 25 °C with a heat transfer coefficient h = 500 W/m²K.What is the temperature at depth 1 cm from the surface at t = 2 minutes after the start of the cooling? For steel: k = 20 W/mK, a = 16x10-6 m²/s. Lütfen birini seçin: A. 51.13 °C B. 43.14 °C C. 60.10 °C D. 52.60 °C

A 4 m thick steel plate initially at 225 °C. Suddenly, both surfaces are exposed to an ambient at 25 °C with a heat transfer coefficient h = 500 W/m²K.What is the temperature at depth 1 cm from the surface at t = 2 minutes after the start of the cooling? For steel: k = 20 W/mK, a = 16x10-6 m²/s. Lütfen birini seçin: A. 51.13 °C B. 43.14 °C C. 60.10 °C D. 52.60 °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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.10P: 3.10 A spherical shell satellite (3-m-OD, 1.25-cm-thick stainless steel walls) re-enters the...

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