In an annealing process, a 50-mm-thick stainless steelplate (r = 8238 kg/m3, cp = 468 J/kg·K, k = 13.4 W/m·K,and a = 3.48 * 10–6 m2/s) was reheated in a furnace from aninitial uniform temperature of 230°C. The ambient temperatureinside the furnace is at a uniform temperature of 1000°Cand has a convection heat transfer coefficient of 215 W/m2·K.If the entire stainless steel plate is to be heated to at least600°C, determine the time that the plate should be heated inthe furnace using (b) the Heisler char.
In an annealing process, a 50-mm-thick stainless steelplate (r = 8238 kg/m3, cp = 468 J/kg·K, k = 13.4 W/m·K,and a = 3.48 * 10–6 m2/s) was reheated in a furnace from aninitial uniform temperature of 230°C. The ambient temperatureinside the furnace is at a uniform temperature of 1000°Cand has a convection heat transfer coefficient of 215 W/m2·K.If the entire stainless steel plate is to be heated to at least600°C, determine the time that the plate should be heated inthe furnace using (b) the Heisler char.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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In an annealing process, a 50-mm-thick stainless steel
plate (r = 8238 kg/m3, cp = 468 J/kg·K, k = 13.4 W/m·K,
and a = 3.48 * 10–6 m2/s) was reheated in a furnace from an
initial uniform temperature of 230°C. The ambient temperature
inside the furnace is at a uniform temperature of 1000°C
and has a convection heat transfer coefficient of 215 W/m2·K.
If the entire stainless steel plate is to be heated to at least
600°C, determine the time that the plate should be heated in
the furnace using (b) the Heisler char.
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