Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Autoignition Phenomena of a Single Diesel/1-Butanol Mixture Droplet

디젤/1-부탄올 혼합연료 단일액적의 자발화 현상

  • 김혜민 (한국교통대학교 (항공기계설계전공))
  • Received : 2018.04.17
  • Accepted : 2018.05.29
  • Published : 2018.06.30
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Abstract

The goal of this study is to experimentally observe the autoignition phenomena of a diesel/1-butanol mixture droplet in ambient pressure and $700^{\circ}C$ condition. A volume ratio of 1-butanol in the fuel was set to 25, 50 and 75%. A single droplet was installed at the tip of fine thermocouple, and the electric furnace dropped down to make elevated temperature condition. Droplet behavior during the experiment could be divided into 3 stages including droplet heating, puffing and autoignition/combustion. Puffing process intensively observed for the case of 1-butanol volume ratio of 25 and 50%, but did not occur at 75%. Increase of 1-butanol volume ratio hindered rise of the droplet temperature and delayed ignition. In addition, puffing process also affected on autoignition, so the ignition delay of 1-butanol volume ratio of 50% was became longer than that of 75% case.

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References

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