Engineering, 06.09.2019 17:20 lorenialopez1234
The concrete slab of a basement is 11 m long, 8 m wide, and 0.20 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? 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?
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