Transient heating and evaporation of moving fuel droplets

Research output: Research - peer-reviewConference article in Journal

Abstract

In combustion devices involving direct injection of low-volatility liquid fuel (e.g., bio-oils from pyrolysis process) into the combustor, transient heating and vaporization is an important controlling factor in ignition and combustion of
the fuel vapor/air mixture. As a result, quite many experimental and numerical efforts have been made on this topic. In this paper, a comprehensive 3D model that addresses the internal circulation, heat and mass transfer within a moving droplet has been successfully developed. The model is calibrated by analytical solutions for simplified cases and validated by experimental results available in literature. The model not only reliably produces all the details that help to achieve an in-depth understanding of the underlying physical processes and to derive simplified models for liquid fuel droplet heating and evaporation, but also can be readily reformulated for solid fuel heating and conversion.
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Details

In combustion devices involving direct injection of low-volatility liquid fuel (e.g., bio-oils from pyrolysis process) into the combustor, transient heating and vaporization is an important controlling factor in ignition and combustion of
the fuel vapor/air mixture. As a result, quite many experimental and numerical efforts have been made on this topic. In this paper, a comprehensive 3D model that addresses the internal circulation, heat and mass transfer within a moving droplet has been successfully developed. The model is calibrated by analytical solutions for simplified cases and validated by experimental results available in literature. The model not only reliably produces all the details that help to achieve an in-depth understanding of the underlying physical processes and to derive simplified models for liquid fuel droplet heating and evaporation, but also can be readily reformulated for solid fuel heating and conversion.
Original languageEnglish
JournalEnergy Procedia
Volume61
Pages (from-to)37-40
Number of pages4
ISSN1876-6102
DOI
StatePublished - 2014
Publication categoryResearch
Peer-reviewedYes
Event6th International Conference on Applied Energy - Taipei, Taiwan, Province of China
Duration: 30 May 20142 Jun 2014

Conference

Conference6th International Conference on Applied Energy
CountryTaiwan, Province of China
CityTaipei
Period30/05/201402/06/2014

    Research areas

  • Biofuel, CFD, Combust ion, Droplet, Evaporation, Heating
ID: 181563100