Problem 1. bar shown below, determine the temperatures at Nodes 2 and 3. Assume 1-D heat transfer that only occurs in the x-direction as the upper and lower 1-D Heat Transfer with Conduction. For the 1-D composite boundaries of the elements are insulated. Assume the cross-sectional area is the same for all elements, A=0.01 m?. For Element 1, let the thermal conductivity be 100 W/(m °C). For Element 2, let the thermal conductivity be 110 W/(m °C). For Element 3, let the thermal conductivity be 120 W/(m °C). The left end of the bar has a constant temperature of 120°C (at Node 1) and the right end has a constant temperature of 276 °C (at Node 4).

Problem 1. bar shown below, determine the temperatures at Nodes 2 and 3. Assume 1-D heat transfer that only occurs in the x-direction as the upper and lower 1-D Heat Transfer with Conduction. For the 1-D composite boundaries of the elements are insulated. Assume the cross-sectional area is the same for all elements, A=0.01 m?. For Element 1, let the thermal conductivity be 100 W/(m °C). For Element 2, let the thermal conductivity be 110 W/(m °C). For Element 3, let the thermal conductivity be 120 W/(m °C). The left end of the bar has a constant temperature of 120°C (at Node 1) and the right end has a constant temperature of 276 °C (at Node 4).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

Problem 1. 67 pts
bar shown below, determine the temperatures at Nodes 2 and 3. Assume 1-D
heat transfer that only occurs in the x-direction as the upper and lower
1-D Heat Transfer with Conduction. For the 1-D composite
boundaries of the elements are insulated. Assume the cross-sectional area is the
same for all elements, A=0.01 m?. For Element 1, let the thermal conductivity be
100 W/(m °C). For Element 2, let the thermal conductivity be 110 W/(m °C). For
Element 3, let the thermal conductivity be 120 W/(m °C). The left end of the bar
has a constant temperature of 120 °C (at Node 1) and the right end has a constant
temperature of 276 °C (at Node 4).
Insulated, 1-d heat transfer in x-dir
Node 1
Node 2
Node 3
Node 4
+x
120°C
E1
E2
ЕЗ
276°C
1 mm
2 mm
0.5mm
Insulated

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