A study of heat transfer for two layered composite inclined plate crotch absorbers

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Since a copper plate (Z=29) absorbs most of the photon energy very near the surface, the temperature of the surface becomes very high despite of having a high thermal conductivity. On the other hand, a beryllium plate( Z=4) can diffuse the intense radiation throughout the depth of its plate by allowing photons to penetrate, but has a low thermal conductivity (about half of that of a copper). As an effort to combine both merits of Be and Cu, a Be-Cu composite absorber was developed and has been successfully used in CESR. They analyzed composite the heat transfer problem numerically for ... continued below

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17 p.

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Choi, M. November 1, 1989.

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Description

Since a copper plate (Z=29) absorbs most of the photon energy very near the surface, the temperature of the surface becomes very high despite of having a high thermal conductivity. On the other hand, a beryllium plate( Z=4) can diffuse the intense radiation throughout the depth of its plate by allowing photons to penetrate, but has a low thermal conductivity (about half of that of a copper). As an effort to combine both merits of Be and Cu, a Be-Cu composite absorber was developed and has been successfully used in CESR. They analyzed composite the heat transfer problem numerically for the case of a vertically located Be-Cu composite cylinder which results in symmetry with respect to the center of photon beam and allows them to consider only half a domain. In this note, an inclined absorber with two layered metal plates is considered and a full domain solution is sought to study the asymmetric heating due to the inclined photon beam penetration heating. An analytical solution for heat transfer is obtained for a full domain using the Fourier integral transformation and of particular interests are the effects of different thickness ratios of two materials and different inclination angles.

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17 p.

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OSTI as DE96015104

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  • Other Information: PBD: Nov 1989

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  • Other: DE96015104
  • Report No.: LS--143(ANL)
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/376367 | External Link
  • Office of Scientific & Technical Information Report Number: 376367
  • Archival Resource Key: ark:/67531/metadc676495

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  • November 1, 1989

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  • July 25, 2015, 2:20 a.m.

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  • Dec. 14, 2015, 6:25 p.m.

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Choi, M. A study of heat transfer for two layered composite inclined plate crotch absorbers, report, November 1, 1989; Illinois. (digital.library.unt.edu/ark:/67531/metadc676495/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.