Thermodynamics: Calculating Outside Temperature of a Greenhouse with Heat Loss

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To calculate the outside temperature of a greenhouse with a heat loss of 120kW through a 10mm-thick glass roof, the thermal conductivity of the glass (1.0 W/m/°C) is essential. The dimensions of the roof (20m by 2m) are provided, which will help in applying the relevant heat conduction equation. The inside temperature is given as 25°C, and the solution requires determining the temperature difference across the glass. The discussion emphasizes the need to locate the appropriate equation in textbooks or class materials to proceed with the calculations. Understanding the relationship between heat loss, thermal conductivity, and temperature is crucial for solving this problem.
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Homework Statement



The rate of heat loss to the outside through a 10mm-thick glass roof of a green house is 120kW. The length and breadth of the glass material of the roof are 20m and 2m, respectively. Calculate the temperature of the outside if the temperature inside the green-house is 25 degrees C.

Assume thermal conductivity of the glass material is 1.0W/m/degrees C.

Please help as I don't know where to start.



Homework Equations




The Attempt at a Solution



I'm not sure where to start unfortuanatly.

Thanks in advance!
 
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pinnacleprouk said:

Homework Statement



The rate of heat loss to the outside through a 10mm-thick glass roof of a green house is 120kW. The length and breadth of the glass material of the roof are 20m and 2m, respectively. Calculate the temperature of the outside if the temperature inside the green-house is 25 degrees C.

Assume thermal conductivity of the glass material is 1.0W/m/degrees C.

Please help as I don't know where to start.
There is an equation that relates heat conducted and temperature. It involves the thermal conductivity too.

The fact that you have been assigned this problem means that this equation is somewhere in your textbook, lecture notes, or class handouts. Find this equation in your textbook, lecture notes, or class handouts -- that is where to start.
 
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