Consider a A = 16.0000 m² wall with two layers of insulation: d = 16 cm of brick wall and d = 12 cm of styrofoam. Temperature outside is Tout = 3 °C and Tw = 10 °C between styrofoam and brick layers. Heat flow through the wall is measured for t = 10 h

Consider a A = 16.0000 m² wall with two layers of insulation: d = 16 cm of brick wall and d = 12 cm of styrofoam. Temperature outside is Tout = 3 °C and Tw = 10 °C between styrofoam and brick layers. Heat flow through the wall is measured for t = 10 h

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter7: Forced Convection Inside Tubes And Ducts

Section: Chapter Questions

Problem 7.48P

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

What is the amount of heat passed through the wall?
Q = 201*10^5
J
Your last answer was interpreted as follows: 201. 105
What is the inside temperature?
Tin =|170*10^-
°C
Your last answer was interpreted as follows: 170. 10-¹
Do not leave any fields blank. If you don't know the answer, insert 1 for example.

Consider a A = 16.0000 m² wall with two layers of insulation: d = 16 cm of brick wall and de = 12 cm of styrofoam. Temperature outside is
Tout = 3 °C and Tw= 10 °C between styrofoam and brick layers. Heat flow through the wall is measured for t = 10 h
d₂ = 12 cm
d = 16 cm
Outside
Tout = 3 °C
foam
T₁ = 10 °C
K = 0.8 W/(mK)
A 16.0 m²
K = 0.01 W/(mK
Inside
Tin
m²
Ø
system of coordinates
What is the heat flow through the wall divided by wall area?
$= 350*10^-1
W
=
Your last answer was interpreted as follows: 350 - 10-¹
What is the heat flow (power) through the wall?
P = 560*10^O
W

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