The steady-state temperatures (°C) associated with selected nodal points of a two-dimensional system having a thermal conductivity of 1.5 W/m.K are shown on the accompanying grid. (a) Determine the temperatures at nodes 1, 2, and 3. (b) Calculate the heat transfer rate per unit thickness normal to the page from the system to the fluid. Insulated boundary ANS.: 129.4 Ť, 45.8 T,= 160.7 °C 0.1 m T = 30°C h = 50 W/m2-K T2= 95.6 °C T3 137.0 103.5 T,= 48.7 °C

The steady-state temperatures (°C) associated with selected nodal points of a two-dimensional system having a thermal conductivity of 1.5 W/m.K are shown on the accompanying grid. (a) Determine the temperatures at nodes 1, 2, and 3. (b) Calculate the heat transfer rate per unit thickness normal to the page from the system to the fluid. Insulated boundary ANS.: 129.4 Ť, 45.8 T,= 160.7 °C 0.1 m T = 30°C h = 50 W/m2-K T2= 95.6 °C T3 137.0 103.5 T,= 48.7 °C

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.10P: 5.10 Experiments have been performed on the temperature distribution in a homogeneous long cylinder...

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Question

The steady-state temperatures (°C) associated with selected nodal points
of a two-dimensional system having a thermal conductivity of 1.5 W/m.K
are shown on the accompanying grid.
(a) Determine the temperatures at nodes 1, 2, and 3.
(b) Calculate the heat transfer rate per unit thickness normal to the
page from the system to the fluid.
Insulated
boundary
ANS.:
129.4 Ť,
45.8
T,= 160.7 °C
0.1 m
T = 30°C
h = 50 W/m2-K
T2= 95.6 °C
T3
137.0 103.5
0.1 m
T3= 48.7 °C
9cony= 743 W/m
172.9 T
132.8
67.0
Isothermal boundary
T = 200°C
%3D

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