Consider a 3m x 3m window in a house. The thermal conductivity is reported to be...
Consider a 3m x 3m window in a house. The thermal conductivity is reported to be 0.03W/mK. The temperature on the inside of the window surface is 300K. The outside temperature is 280K. The thickness of the window is 10mm. Calculate the heat flux and the heat transfer through the window.
Homework Answers
SUMMARY: FOURIERS LAW:The law
states that the rate of heat transfer by conduction along a given
direction is directly propotional to the temperature gradient along
that direction and is also directly propotional to the area of heat
transfer laying perpendicular to the direction of Heat
transfer.
(-ve)Negative sign indicates heat always conduct in a direction in which temperature is decreasing.Hear from T1 to T2.
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Consider a 3m x 3m window in a house. The thermal conductivity
is reported to be...
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QUESTION 1 Quarter of the area of a 5m x 3m outside wall of a house is made of glass windows. The wall is 15 cm thick and has an average thermal conductivity of 0.8 W/m K. The window glass is 8 mm thick and has an average thermal conductivity of 0.15 W/m K. On a winter day the inside temperature of the wall and the glass is 20°C, and the outside air temperature is -10°C. The outside convection heat...
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