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 η f = 0.90 and natural gas is priced at C g = $ 0.02 /MJ, what is the daily cost of the heat loss?
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 η f = 0.90 and natural gas is priced at C g = $ 0.02 /MJ, what is the daily cost of the heat loss?
Solution Summary: The author explains the rate of heat loss through the slab and the daily cost.
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
η
f
=
0.90
and natural gas is priced at
C
g
=
$
0.02
/MJ,
what is the daily cost of the heat loss?
my ID# 016948724. Please solve this problem step by step
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