Microexplosive Atomization of Heterogeneous Fuel Drops for Intensifying Their Ignition

D. V. Antonov, G. S. Nyashina, R. M. Fedorenko, A. S. Filatova

Research output: Contribution to journalArticle

Abstract

Models of microexplosive atomization of two-liquid unmixed drops under high-temperature heating are developed. Two most common mechanisms, namely, superheating of interphase boundary and critical bubble size, are chosen as atomization criteria. Two mathematical models, one based on solution of heat conduction equation and the other on VOF, are presented. The studied drops contain rapeseed oil and aqueous suspension of graphite. Experiments were conducted to determine the time lag of atomization of moving two-liquid unmixed drops under high-temperature heating. The theoretical and experimental atomization time lag values are found to be in satisfactory agreement. The results can be used to develop existing and create new gas-vapor-droplet technologies in chemical and petroleum engineering fields because they help predict the conditions of intense secondary atomization of heterogeneous drops by microexplosive dispersion.

Original languageEnglish
Pages (from-to)619-626
Number of pages8
JournalChemical and Petroleum Engineering
Volume55
Issue number7-8
DOIs
Publication statusPublished - 1 Nov 2019

Keywords

  • bubble growth
  • dispersion
  • interphase boundary
  • mathematical modeling
  • microexplosive atomization
  • superheating

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Geochemistry and Petrology

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