Consider the steady-state temperature distribution within a composite wall composed of Materials A and B. The conduction process is one-dimensional. Within which material does uniform volumetric generation occur? What is the boundary condition at x = L A ? How would the temperature distribution change if the thermal conductivity of Material A were doubled? How would the temperature distribution change if the thermal conductivity of Material B were doubled? Does a contact resistance exist at the interface between the two materials? Sketch the heat flux distribution q x n ( x ) through the composite wall.
Consider the steady-state temperature distribution within a composite wall composed of Materials A and B. The conduction process is one-dimensional. Within which material does uniform volumetric generation occur? What is the boundary condition at x = L A ? How would the temperature distribution change if the thermal conductivity of Material A were doubled? How would the temperature distribution change if the thermal conductivity of Material B were doubled? Does a contact resistance exist at the interface between the two materials? Sketch the heat flux distribution q x n ( x ) through the composite wall.
Solution Summary: The author illustrates the temperature distribution of material A and B if thermal conductivity was doubled.
Consider the steady-state temperature distribution within a composite wall composed of Materials A and B.
The conduction process is one-dimensional. Within which material does uniform volumetric generation occur? What is the boundary condition at
x
=
L
A
?
How would the temperature distribution change if the thermal conductivity of Material A were doubled? How would the temperature distribution change if the thermal conductivity of Material B were doubled? Does a contact resistance exist at the interface between the two materials? Sketch the heat flux distribution
q
x
n
(
x
)
through the composite wall.
B:
Find the numerical solution for the 2D equation below and calculate the temperature values for
each grid point shown in Fig. 2 (show all steps).
(Do only one trail using following initial values and show the final matrix)
T₂
0
T3
0
loc
Show all work. Indicate the origin that is used for each plane.
Identify the Miller indices for the following planes.
N
23
1
A)
X
B)
y
the following table gives weight gain time data for the oxidation of some metal at an elevated temperature
W(mg/cm2). Time (min)
4.66 20
11.7 50
41.1 175
a) determin whether the oxidation kinetics obey a linear, parabolic, or logarithmic rate expression.
b) Now compute W after a time of 1000 min
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