In a production facility, 3-cm-thick large brass plates(k = 110 W/m·K, r = 8530 kg/m3, cp = 380 J/kg·K, and a =33.9 * 1026 m2/s) that are initially at a uniform temperatureof 25°C are heated by passing them through an oven maintainedat 700°C. The plates remain in the oven for a period of10 min. Taking the convection heat transfer coefficient to beh 5 80 W/m2·K, determine the surface temperature of theplates when they come out of the oven. Solve this problemusing analytical one-term approximation method (not theHeisler charts). Can this problem be solved using lumpedsystem analysis? Justify your answer.
In a production facility, 3-cm-thick large brass plates(k = 110 W/m·K, r = 8530 kg/m3, cp = 380 J/kg·K, and a =33.9 * 1026 m2/s) that are initially at a uniform temperatureof 25°C are heated by passing them through an oven maintainedat 700°C. The plates remain in the oven for a period of10 min. Taking the convection heat transfer coefficient to beh 5 80 W/m2·K, determine the surface temperature of theplates when they come out of the oven. Solve this problemusing analytical one-term approximation method (not theHeisler charts). Can this problem be solved using lumpedsystem analysis? Justify your answer.
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 a production facility, 3-cm-thick large brass plates
(k = 110 W/m·K, r = 8530 kg/m3, cp = 380 J/kg·K, and a =
33.9 * 1026 m2/s) that are initially at a uniform temperature
of 25°C are heated by passing them through an oven maintained
at 700°C. The plates remain in the oven for a period of
10 min. Taking the convection heat transfer coefficient to be
h 5 80 W/m2·K, determine the surface temperature of the
plates when they come out of the oven. Solve this problem
using analytical one-term approximation method (not the
Heisler charts). Can this problem be solved using lumped
system analysis? Justify your answer.
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