Effects of dilution by aromatic hydrocarbons on staged ignition behavior of n-decane droplets

O. Moriue, K. Okai, M. Tsue, M. Kono

Research output: Contribution to journalArticlepeer-review


The spontaneous ignition of isolated two-component fuel droplets was studied using n-decane (ND)/1-methylnaphthalene (MN) or ND/1,2,4-trimethylbenzene (TMB) as the components to be mixed. Both were n-alkane/aromatic mixture, one of the candidates for model fuels of multi-component commercial fuels refined from crude petroleum. ND exhibited two-stage ignition behavior, while the other two fuels did not and were less active. Ambient gas was air and droplet diameter was 0.7 nm. The experimental conditions that were varied were ambient temperature (Ta), ambient pressure, and initial mole fraction of ND in the liquid phase, Z, (0-1). It was common to ND/MN and ND/TMB that the two-stage ignition region was narrowed and vanished as Z decreased, and that t1, t2, and ttot increased monotonically with decreasing Z. However, TMB affected more than MN through its higher volatility. Numerical simulation with a fully transient one-dimensional model was used to interpret results. Original is an abstract.

Original languageEnglish
Pages (from-to)19
Number of pages1
JournalInternational Symposium on Combustion Abstracts of Accepted Papers
Issue numberA
Publication statusPublished - 2000
Externally publishedYes
Event28th International Symposium on Combustion - Edinburgh, United Kingdom
Duration: Jul 30 2000Aug 4 2000

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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