In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 10.3 oC. The temperature at the inside surface of the wall is 18.1 oC. The wall is 0.14 m thick and has an area of 6.5 m2. Assume that one kilowatt hour of electrical energy costs $0.10. How many hours are required for one dollar's worth of energy to be conducted through the wall?

Question

In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 10.3 oC. The temperature at the inside surface of the wall is 18.1 oC. The wall is 0.14 m thick and has an area of 6.5 m2. Assume that one kilowatt hour of electrical energy costs $0.10. How many hours are required for one dollar's worth of energy to be conducted through the wall?

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Heat Transfer

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