Respuesta :
Answer:
13714.286 W
Explanation:
full question
A 10m×15m house is built on a 14 cm -thick concrete slab. What is the heat-loss rate through the slab if the ground temperature is 7 ∘C while the interior of the house is 23 ∘C?
solution
Given: A (10 m x 15 m) = 150 m²
L = 14 cm = 0.14 m and
ΔT = 16 ∘C
Rate of heat loss(Q/t) = KA . ΔT (Here, K = 0.8 w/m∘C)
L
Q/t = 0.8 × 150 × 16
0.14
= 13714.286 W
The heat-loss rate through the slab 13714.286 W.
What is heat loss rate?
The heat transferred to the surrounding by the thermal conductive substance per unit time.
A 10m×15m house is built on a 14 cm -thick concrete slab.
Area = (10 m x 15 m) = 150 m²
Length L = 14 cm = 0.14 m and
Temperature difference, ΔT = 16 ∘C
Rate of heat loss(Q/t) = KA . ΔT /L
Here, thermal conductivity K = 0.8 w/m∘C)
Substituting the values, we get
Q/t = 0.8 × 150 × 16 / 0.14
Q/t= 13714.286 W
Thus, the heat loss rate is 13714.286 W.
Learn more about heat loss rate.
https://brainly.com/question/6850851
#SPJ5
