Thermal dispersion in vertical gas-liquid flows with foaming and non-foaming liquids

L. R Z Pino, Avelino E Saez

Research output: Contribution to journalArticle

Abstract

Heat transfer experiments have been performed in gas-liquid upwards flow in a vertical column with non-foaming (water) and foaming (kerosene) liquids. The main purpose of the experiments has been to characterize the degree of thermal mixing in the system. For the range of conditions employed, the non-foaming liquid exhibits complete mixing at low liquid superficial velocities. An increase in liquid velocity leads to incomplete mixing. In the latter case, the thermal dispersion coefficient at low gas superficial velocities is larger than what correlations in the literature predict. For the foaming liquid, when foaming and bubbling regions coexist in the bubble column, each region behaves as a completely-mixed subsystem.

Original languageEnglish (US)
Pages (from-to)391-400
Number of pages10
JournalInternational Communications in Heat and Mass Transfer
Volume22
Issue number3
DOIs
StatePublished - 1995
Externally publishedYes

Fingerprint

foaming
liquid flow
Gases
Liquids
liquids
gases
kerosene
Bubble columns
Kerosene
bubbles
heat transfer
Hot Temperature
Experiments
Heat transfer
coefficients
Water
water

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Engineering(all)
  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Thermal dispersion in vertical gas-liquid flows with foaming and non-foaming liquids. / Pino, L. R Z; Saez, Avelino E.

In: International Communications in Heat and Mass Transfer, Vol. 22, No. 3, 1995, p. 391-400.

Research output: Contribution to journalArticle

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