16-22 The inner and outer surfaces of a 0.5-cm thick 2-m X 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass is 0.78 W/m-K, determine the amount of heat loss through the glass over a period of 5 h. What would your answer be if the glass were 1 cm thick? Answers: 78.6 MJ, 39.3 MJ

16-22 The inner and outer surfaces of a 0.5-cm thick 2-m X 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass is 0.78 W/m-K, determine the amount of heat loss through the glass over a period of 5 h. What would your answer be if the glass were 1 cm thick? Answers: 78.6 MJ, 39.3 MJ

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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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

16-22 The inner and outer surfaces of a 0.5-cm thick
2-m X 2-m window glass in winter are 10°C and 3°C,
respectively. If the thermal conductivity of the glass is 0.78
W/m-K, determine the amount of heat loss through the glass
over a period of 5 h. What would your answer be if the glass
were 1 cm thick? Answers: 78.6 MJ, 39.3 MJ
16-23
Reconsider Prob. 16-22. Using an appropriate
software, plot the amount of heat loss through
the glass as a function of the window glass thickness in the
range of 0.1 cm to 1.0 cm. Discuss the results.

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I got t=531.96 seconds is that right