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A composite wall is formed of a 2.5-cm copper plate (k = 386 W/m.°C), a 3.2-mm layer of 0.038 W/m.°C). The wall is asbestos (k = 0.16 W/m.°C), and a 5-cm layer of fiberglass (k subjected to an overall temperature difference of 560-C. Calculate the heat flow per unit area

A composite wall is formed of a 2.5-cm copper plate (k = 386 W/m.°C), a 3.2-mm layer of 0.038 W/m.°C). The wall is asbestos (k = 0.16 W/m.°C), and a 5-cm layer of fiberglass (k subjected to an overall temperature difference of 560-C. Calculate the heat flow per unit area

Elements Of Electromagnetics
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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Q/ A composite wall is formed of a 2.5-cm copper plate (k = 386 W/m.°C), a 3.2-mm layer of 0.038 W/m.°C). The wall is asbestos (k = 0.16 W/m.°C), and a 5-cm layer of fiberglass (k subjected to an overall temperature difference of 560-C. Calculate the heat flow per unit area
1. Water flows at the rate of 0.5 kg/s in a 2.5-cm-diameter tube having a length of 3 m. A constant heat flux is imposed at the tube wall so that the tube wall temperature is 40•C higher than the water temperature. Calculate the heat transfer and estimate the temperature rise in the water. The water is pressurized so that boiling cannot occur.
Transcribed Image Text:1. Water flows at the rate of 0.5 kg/s in a 2.5-cm-diameter tube having a length of 3 m. A constant heat flux is imposed at the tube wall so that the tube wall temperature is 40•C higher than the water temperature. Calculate the heat transfer and estimate the temperature rise in the water. The water is pressurized so that boiling cannot occur.
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