Consider the rate of heat conduction through a double-paned window that has a 1.4-m2 area and is made of two panes of 0.73-cm-thick glass separated by a 0.95-cm air gap. You can ignore the increased heat transfer in the air gap due to convection. a) Calculate the rate of heat conduction through this window, in watts, given that the inside surface temperature is 15.0°C, while the outside temperature is -10.0°C. Make the assumption that the temperature differences across the two glass planes are equal. First find these and then the temperature drop across the air gap. b) For comparison, calculate the rate of heat conduction, in watts, through a single 1.67-cm-thick window of the same area and with the same temperatures as in part (a).
Consider the rate of heat conduction through a double-paned window that has a 1.4-m2 area and is made of two panes of 0.73-cm-thick glass separated by a 0.95-cm air gap. You can ignore the increased heat transfer in the air gap due to convection. a) Calculate the rate of heat conduction through this window, in watts, given that the inside surface temperature is 15.0°C, while the outside temperature is -10.0°C. Make the assumption that the temperature differences across the two glass planes are equal. First find these and then the temperature drop across the air gap. b) For comparison, calculate the rate of heat conduction, in watts, through a single 1.67-cm-thick window of the same area and with the same temperatures as in part (a).
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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Consider the rate of heat conduction through a double-paned window that has a 1.4-m2 area and is made of two panes of 0.73-cm-thick glass separated by a 0.95-cm air gap. You can ignore the increased heat transfer in the air gap due to convection.
a) Calculate the rate of heat conduction through this window, in watts, given that the inside surface temperature is 15.0°C, while the outside temperature is -10.0°C. Make the assumption that the temperature differences across the two glass planes are equal. First find these and then the temperature drop across the air gap.
b) For comparison, calculate the rate of heat conduction, in watts, through a single 1.67-cm-thick window of the same area and with the same temperatures as in part (a).
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