Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Effect of High Temperature and Pressure Conditions on the Combustion Characteristics of n-butanol and n-heptane Fuel

고온, 고압의 분위기 변화가 n-butanol 및 n-heptane 연료의 연소 특성에 미치는 영향

  • 임영찬 (국립공주대학교 기계공학과 대학원) ;
  • 서현규 (공주대학교 기계자동차공학부)
  • Received : 2016.02.11
  • Accepted : 2016.03.06
  • Published : 2016.03.31
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Abstract

The effect of high ambient temperature and pressure conditions on the combustion performance of n-butanol, n-heptane and its mixing fuel (BH 20) were studied in this work. To reveal this, the closed homogeneous reactor model applied and 1000-1200 K of the initial temperature, 20-30 atm of initial pressure and 1.0 of equivalence ratio were set to numerical analysis. It was found that the results of combustion temperature was increased and the ignition delay was decreased when the ambient conditions were elevated since the combustion reactivity increased at the high ambient conditions. On the contrary, under the low combustion temperature condition, the combustion pressure was more influenced by the ambient temperature in the same ambient conditions. In addition, the total mass and the mass density of tested fuels were influenced by the ambient pressure and temperature. Also, soot generation of mixing fuel was decreased than n-heptane fuel due to the oxygen content of n-butanol fuel.

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