Introduction to Heat Transfer
6th Edition
ISBN: 9780470501962
Author: Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine
Publisher: Wiley, John & Sons, Incorporated
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Chapter 3, Problem 3.154P
Carbon steel (AISI 1010) shafts of 0.1-m diameter are heat treated in a gas-fired furnace whose gases are at 1200 K and provide a convection coefficient of
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B6
5.15 Carbon steel (AISI 1010) shafts of 0.1-m diameter are
heat treated in a gas-fired furnace whose gases are at
1200 K and provide a convection coefficient of
100 W/m² K. If the shafts enter the furnace at 300 K,
how long must they remain in the furnace to achieve a
centerline temperature of 800 K?
A 50-mm thick plate of carbon steel (AISI 1010) is annealed with a reheat stage taking the steel from its initial uniform temperature of 200 C to a minimum final temperature of 550 C. HEating is effected in a gas-fired furnace where products of combustion at Tamb = 800 C maintain a convection coefficient of h = 100 W/m^2K on both sides of the plate. How long should the plate be left in the furnace? Substantiate with relevant analysis and calculations.
Chapter 3 Solutions
Introduction to Heat Transfer
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