Engineering, 08.02.2021 21:20 MarsBars8798

The concrete slab of a basement is 11 m long, 8 m wide, and 0.4 m thick. During the winter, temperatures are nominally 17°C and 10°C at the top and bottom surfaces, respectively. If the concrete has a thermal conductivity of 1.4 W/m·K, what is the rate of heat loss through the slab, in W? If the basement is heated by a gas furnace operating at an efficiency of ηf=0.90 and natural gas is priced at Cg=$0.02/MJ, what is the daily cost of the heat loss, in dollars per day?

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The concrete slab of a basement is 11 m long, 8 m wide, and 0.4 m thick. During the winter, temperat...