You are designing a chamber to contain the radiation emitted by nuclear decay during a fusion reaction. The left face of the (plane) chamber wall (x = 0) is exposed to the radiation and the right face of the wall (x = L) is perfectly insulated. To facilitate the fusion reaction, the left face of the wall is maintained at fixed temperature To. The radiation penetrates the wall causing uniform heat generation that varies with location inside the wall as 4(x) = 40 (1 - 7²7) where do [W/m^3] is a constant. Determine an expression for the temperature distribution in the wall T(x) assuming the thermal conductivity of the wall (k) is constant. Note: You must start from the HDE, find the general solution to the differential equation, then apply the appropriate BCs to solve for T(x). You cannot start from the general solution in Appendix C because that solution assumes constant volumetric heat generation.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter3: Transient Heat Conduction
Section: Chapter Questions
Problem 3.20P
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You are designing a chamber to contain the radiation emitted by nuclear decay during a
fusion reaction. The left face of the (plane) chamber wall (? = 0) is exposed to the radiation
and the right face of the wall (? = ?) is perfectly insulated. To facilitate the fusion reaction,
the left face of the wall is maintained at fixed temperature ?% . The radiation penetrates the
wall causing uniform heat generation that varies with location inside the wall as
?̇ (?) = ?̇% _1 − ? (
?( b
where ?̇% [W/m^3 ] is a constant. Determine an expression for the temperature distribution
in the wall ?(?) assuming the thermal conductivity of the wall (?) is constant.
Note: You must start from the HDE, find the general solution to the differential equation,
then apply the appropriate BCs to solve for ?(?). You cannot start from the general solution
in Appendix C because that solution assumes constant volumetric heat generation

You are designing a chamber to contain the radiation emitted by nuclear decay during a
fusion reaction. The left face of the (plane) chamber wall (x = 0) is exposed to the radiation
and the right face of the wall (x = L) is perfectly insulated. To facilitate the fusion reaction,
the left face of the wall is maintained at fixed temperature To. The radiation penetrates the
wall causing uniform heat generation that varies with location inside the wall as
4(x) = 40 (1 - = ² )
where qo [W/m^3 ] is a constant. Determine an expression for the temperature distribution
in the wall T(x) assuming the thermal conductivity of the wall (k) is constant.
Note: You must start from the HDE, find the general solution to the differential equation,
then apply the appropriate BCs to solve for T(x). You cannot start from the general solution
in Appendix C because that solution assumes constant volumetric heat generation.
Transcribed Image Text:You are designing a chamber to contain the radiation emitted by nuclear decay during a fusion reaction. The left face of the (plane) chamber wall (x = 0) is exposed to the radiation and the right face of the wall (x = L) is perfectly insulated. To facilitate the fusion reaction, the left face of the wall is maintained at fixed temperature To. The radiation penetrates the wall causing uniform heat generation that varies with location inside the wall as 4(x) = 40 (1 - = ² ) where qo [W/m^3 ] is a constant. Determine an expression for the temperature distribution in the wall T(x) assuming the thermal conductivity of the wall (k) is constant. Note: You must start from the HDE, find the general solution to the differential equation, then apply the appropriate BCs to solve for T(x). You cannot start from the general solution in Appendix C because that solution assumes constant volumetric heat generation.
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