Analysis on premixed combustion of H2-CH4 mixed fuels for SiO2 particle preparation

Anna Nasonova, Kyo Seon Kim

Research output: Contribution to journalArticle

Abstract

The combustion of premixed H2 and CH4 fuels to prepare SiO2 nanoparticles was analyzed numerically. The commercial CFD-code Fluent was used to calculate the profiles of gas velocities, temperature, species concentrations and reaction rates for various process conditions in the premixed flame reactor. To understand the effect of CH4 addition to H2 fuel, the CH4 mole fraction was changed from 0% to 10%, while keeping the H2 concentration constant. With the increase of CH4 concentration, flame temperature increases, which will affect the properties of SiO2 particles prepared in premixed flame reactor. Using the data of gas temperatures and velocities extracted from Fluent, the trajectories and temperature histories of SiO2 particles were calculated inside the premixed flame reactor. This study shows that particles starting at different initial positions move inside the reactor with different particle trajectories and have different temperature histories, and the properties of SiO2 nanoparticles prepared in the premixed flame reactor will depend on those process variables significantly.

Original languageEnglish
Pages (from-to)389-395
Number of pages7
JournalChemical Engineering Journal
Volume215-216
DOIs
Publication statusPublished - 2013 Jan 5

Keywords

  • Mixed H and CH fuels
  • Particle trajectories
  • Premixed combustion
  • Preparation of SiO particles
  • Temperature histories of particles

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Analysis on premixed combustion of H<sub>2</sub>-CH<sub>4</sub> mixed fuels for SiO<sub>2</sub> particle preparation'. Together they form a unique fingerprint.

  • Cite this