Spontaneous ignition of n-alkane droplets with various volatility

Osamu Moriue, Christian Eigenbrod, Hans J. Rath, Mitsuhiro Tsue, Michikata Kono, Jun'ichi Sato

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Ignition delays of a cool flame (τ1) and a hot flame (τt) were measured experimentally for single n-decane, n-do-decane, n-tetradecane and n-hexadecane droplets, which have similar volatilities to common commercial hydrocarbon fuels, in hot air. Droplet diameter was 0.7mm. Ambient pressure was 0.3 and 1.0 MPa. Ambient temperature was 550 K to 1000 K. Results show the similarity of the examined fuels in terms of reactivity of the low- and high-temperature reactions. Values of τ1 and τt were longer for fuels with lower volatility. Values of τ2 (= τt - τ1) were similar for examined fuels. Both the ignition limits of cool and hot flames were similar between fuels, but were slightly lower for less-volatile fuels.

Original languageEnglish
Pages (from-to)189-194
Number of pages6
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Issue number157
Publication statusPublished - Nov 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science


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