Required Information A brick of 203 x 102 x 57 mm in dimension is being burned in a kiln to 1450°C, and then allowed to cool in a room with ambient air temperature of 30°C and convection heat transfer coefficient of 5 W/m4.K. The brick has properties of p = 1920 kg/m3, dn = 790 J/kg-K, and k = 0.90 W/m-K. Calculaté the time required to cool a brick from 1450°C to a temperature difference of 5°C from the ambient air temperature. (b = 2.128
Required Information A brick of 203 x 102 x 57 mm in dimension is being burned in a kiln to 1450°C, and then allowed to cool in a room with ambient air temperature of 30°C and convection heat transfer coefficient of 5 W/m4.K. The brick has properties of p = 1920 kg/m3, dn = 790 J/kg-K, and k = 0.90 W/m-K. Calculaté the time required to cool a brick from 1450°C to a temperature difference of 5°C from the ambient air temperature. (b = 2.128
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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![Required information
A brick of 203 x 102 x 57 mm in dimension is being burned in a kiln to 1450°C, and then allowed to cool in a room with
ambient air temperature of 30°C and convection heat transfer coefficient of 5 W/m.K. The brick has properties of p =
1920 kg/m3, dp = 790 J/kg-K, and k = 0.90 W/m-K.
Calculate the time required to cool a brick from 1450°C to a temperature difference of 5°C from the ambient air temperature. (b = 2.128
10 , round the answer to 2 decimal places.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb83065ee-21da-4bef-a79b-1beea3d632ce%2F80fdb311-89e2-4e4c-b7d0-1d17aef246a2%2Fumwouto_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Required information
A brick of 203 x 102 x 57 mm in dimension is being burned in a kiln to 1450°C, and then allowed to cool in a room with
ambient air temperature of 30°C and convection heat transfer coefficient of 5 W/m.K. The brick has properties of p =
1920 kg/m3, dp = 790 J/kg-K, and k = 0.90 W/m-K.
Calculate the time required to cool a brick from 1450°C to a temperature difference of 5°C from the ambient air temperature. (b = 2.128
10 , round the answer to 2 decimal places.)
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