A three-dimensional inverse problem in imaging the local heat transfer coefficients for plate finned-tube heat exchangers

Cheng Hung Huang, I. Cha Yuan, Herchang Ay

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

A three-dimensional inverse heat conduction problem in imaging the local heat transfer coefficients for plate finned-tube heat exchangers utilizing the steepest descent method and a general purpose commercial code CFX4.4 is applied successfully in the present study based on the simulated measured temperature distributions on fin surface by infrared thermography. It is assumed that no prior information is available on the functional form of the unknown local heat transfer coefficients in the present study. Thus, it can be classified as function estimation for the inverse calculations. Two different heat transfer coefficients for in-line tube arrangements with different measurement errors are to be estimated. Results show that the present algorithm can obtain the reliable estimated heat transfer coefficients.

Original languageEnglish
Pages (from-to)3629-3638
Number of pages10
JournalInternational Journal of Heat and Mass Transfer
Volume46
Issue number19
DOIs
Publication statusPublished - 2003 Sep

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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