Effect of surfactant additive on pool boiling of concentrated lithium bromide solution

Wuu Tsann Wu, Yu Min Yang, Jer Ru Maa

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The measurements of nucleate pool boiling heat transfer rate and surface tension were made for pure water and 50 wt. % lithium bromide solution with various amounts of n-octanol. Regardless of low concentration, n-octanol additive depresses considerably the surface tension of the liquids. The pool boiling data, however, reveal that the addition of surfactant results in insignificant enhancement of heat transfer for both pure water and the concentrated LiBr solution. With the results of this work, the performance improvement received from using n-octanol additive in working liquid of an absorption heat pump (AHP) is consequently due to the enhancement of heat and mass transfer in the absorber (but not generator) by the induced interfacial turbulence.

Original languageEnglish
Pages (from-to)1127-1134
Number of pages8
JournalInternational Communications in Heat and Mass Transfer
Volume25
Issue number8
DOIs
Publication statusPublished - 1998 Nov 1

Fingerprint

1-Octanol
Surface-Active Agents
boiling
Boiling liquids
bromides
Lithium
Surface active agents
lithium
heat transfer
surfactants
Heat transfer
Surface tension
interfacial tension
heat pumps
Water
augmentation
Liquids
liquids
water
mass transfer

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Chemical Engineering(all)
  • Condensed Matter Physics

Cite this

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abstract = "The measurements of nucleate pool boiling heat transfer rate and surface tension were made for pure water and 50 wt. {\%} lithium bromide solution with various amounts of n-octanol. Regardless of low concentration, n-octanol additive depresses considerably the surface tension of the liquids. The pool boiling data, however, reveal that the addition of surfactant results in insignificant enhancement of heat transfer for both pure water and the concentrated LiBr solution. With the results of this work, the performance improvement received from using n-octanol additive in working liquid of an absorption heat pump (AHP) is consequently due to the enhancement of heat and mass transfer in the absorber (but not generator) by the induced interfacial turbulence.",
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Effect of surfactant additive on pool boiling of concentrated lithium bromide solution. / Wu, Wuu Tsann; Yang, Yu Min; Maa, Jer Ru.

In: International Communications in Heat and Mass Transfer, Vol. 25, No. 8, 01.11.1998, p. 1127-1134.

Research output: Contribution to journalArticle

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AB - The measurements of nucleate pool boiling heat transfer rate and surface tension were made for pure water and 50 wt. % lithium bromide solution with various amounts of n-octanol. Regardless of low concentration, n-octanol additive depresses considerably the surface tension of the liquids. The pool boiling data, however, reveal that the addition of surfactant results in insignificant enhancement of heat transfer for both pure water and the concentrated LiBr solution. With the results of this work, the performance improvement received from using n-octanol additive in working liquid of an absorption heat pump (AHP) is consequently due to the enhancement of heat and mass transfer in the absorber (but not generator) by the induced interfacial turbulence.

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