Evaporative liquid jets in gas-liquid-solid flow system

L. S. Fan, R. Lau, C. Zhu, K. Vuong, W. Warsito, X. Wang, G. Liu

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Some aspects of the fundamental characteristics of evaporative liquid jets in gas-liquid-solid flows are studied and some pertinent literature is reviewed. Specifically, two conditions for the solids concentration in the flow are considered, including the dilute phase condition as in pneumatic convey and the dense phase condition as in bubbling or turbulent fluidized beds. Comparisons of the fundamental behavior are made of the gas-solid flow with dispersed non-evaporative as well as with evaporative liquids. For dilute phase conditions, experiments and analyses are conducted to examine the individual phase motion and boundaries of the evaporative region and the jet. Effects of the solids loading and heat capacity, system temperature, gas flow velocity and liquid injection angle on the jet behavior in gas and gas-solid flows are discussed. For dense phase conditions, experiments are conducted to examine the minimum fluidization velocity and solids distribution across the bed under various gases and liquid flow velocities. The electric capacitance tomography is developed for the first time for three-phase real time imaging of the dense gas-solid flow with evaporative liquid jets. The images reflect significantly varied bubbling phenomenon compared to those in gas-solid fluidized beds without evaporative liquid jets.

Original languageEnglish (US)
Pages (from-to)5871-5891
Number of pages21
JournalChemical Engineering Science
Volume56
Issue number21-22
DOIs
StatePublished - Nov 23 2001

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Keywords

  • Evaporation
  • Reaction engineering

Fingerprint

Dive into the research topics of 'Evaporative liquid jets in gas-liquid-solid flow system'. Together they form a unique fingerprint.

Cite this