A comparison between HIGHFLUX and plain tubes, boiling pentane in a horizontal kettle reboiler

D. A. McNeil, B. M. Burnside, K. M. Miller, A. H. Tarrad

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An experimental study has been undertaken into the enhancement obtained in the heat-transfer coefficients when HIGHFLUX tubes are used in preference to plain tubes while boiling pentane. The study involved two experimental facilities, a single-tube pool boiler and a 241 tube, 17 row by 17 column, thin slice kettle reboiler. The pool boiling results show that the HIGHFLUX tubes produce heat-transfer coefficients that are up to five times larger than their plain tube counterparts. In flow boiling the enhancement is 3-6 times. In both cases, HIGHFLUX tube performance is shown to deteriorate when small degrees of subcooling are present in the liquid. The deterioration still leaves the HIGHFLUX tubes with a significantly higher heat-transfer coefficient than the plain tubes. Existing flow boiling design methodologies are shown to produce performance characteristics that HIGHFLUX tubes do not follow. © 2002 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)803-814
Number of pages12
JournalApplied Thermal Engineering
Volume22
Issue number7
DOIs
Publication statusPublished - Jul 2002

Keywords

  • Boiling
  • Enhancement
  • Reboiler
  • Shell side

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