Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of the wall is 100oC and the temperature on the right side is 30oC, determine:Total thermal resistance of the wallHeat transfer rate through the wall (as a vector)The convective heat transfer coefficient (h) of the air on the left side of the wall if ambient temperature is 120oC 2.5m2.5m231m1412mMaterial1: Foam2: Brick3:Concrete4:90-10 Bronzek, W/mK0.059.35.3424.42m2m

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Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of the wall is 100oC and the temperature on the right side is 30oC, determine: Total thermal resistance of the wall Heat transfer

Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of the wall is 100oC and the temperature on the right side is 30oC, determine: Total thermal resistance of the wall Heat transfer

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.

Chapter3: Transient Heat Conduction

Section: Chapter Questions

Problem 3.41P

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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

Consider a 10m deep wall with a cross section as shown below. If the temperature on the left side of the wall is 100^oC and the temperature on the right side is 30^oC, determine:

Total thermal resistance of the wall
Heat transfer rate through the wall (as a vector)
The convective heat transfer coefficient (h) of the air on the left side of the wall if ambient temperature is 120^oC

2.5m
2.5m
2
3
1m
1
4
1
2m
Material
1: Foam
2: Brick
3:Concrete
4:90-10 Bronze
k, W/mK
0.05
9.3
5.34
24.4
2m
2m

Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.

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