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Theoretical Evaluation of Convective Heat Transfer Coefficients in Conjugated Problems Using the Second Law of Thermodynamics

[+] Author Affiliations
Devashish Shrivastava, Robert Roemer

University of Utah, Salt Lake City, UT

Paper No. IMECE2002-39569, pp. 227-228; 2 pages
doi:10.1115/IMECE2002-39569
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

The Tissue Convective Energy Balance Equation (TCEBE) is a recently derived, general bio-heat transfer equation from which a derivation of Pennes BHTE can be obtained. To accurately implement the TCEBE it is necessary to obtain expressions for the values of the overall heat transfer coefficients between the blood vessels and the tissue. One of the requisite steps in evaluating the overall heat transfer coefficients is to estimate convective heat transfer coefficients between the blood vessels and the tissue. To achieve this goal, a new technique is presented using the second law of thermodynamics to estimate convective heat transfer coefficients in conjugated problems at steady state. One dimensional results obtained are qualitatively similar to two dimensional results from the analytical solution for conjugated problems.

Copyright © 2002 by ASME

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