Exploration of combustion processes and spray characterizations of Acetone-Butanol-Ethanol (ABE) in a constant volume chamber

Timothy Lee, Yilu Lin, Han Wu, Lei Meng, Alan Hansen, Chia Fon F. Lee

Research output: Contribution to conferencePaperpeer-review

Abstract

Butanol, in comparison with ethanol, has more similar properties of current transportation fuel. These means it has a potential of being a more suitable blend for use in diesel engines. Unfortunately, butanol has a high cost of production. Acetone-butanol-ethanol (ABE) is an intermediate product of the fermentation process of butanol production. By using ABE directly in diesel fuels instead of butanol, the separation and purification processes are eliminated. As a result, it has a potential for greatly decreasing the overall cost for fuel production. This could lead to a larger commercial use of ABE-diesel blends on the market. Research has been conducted over the past five years regarding spray and combustion processes of both neat ABE and ABE-diesel blends. The main focus of this paper is to review the efforts made in fundamental spray research under quasi-steady flow field environments provided by a high-temperature, high-pressure constant volume chamber. Heat release rates high-speed Mie-scattering images were acquired from in-cylinder pressure traces to characterize liquid spray penetration. Natural flame luminosity was also captured to depict spatial and temporal soot distribution. It is observed that the acetone content has a major influence in the combustion behavior of the ABE mixture. As the acetone content increases, the combustion phasing significantly advances. Butanol is able to compensate the advancing effect caused by acetone and ethanol. Additionally, butanol can increase the overall energy density of the mixture and as a result makes the properties of the mixture closer to that of diesel.

Original languageEnglish (US)
StatePublished - 2015
Event13th International Conference on Liquid Atomization and Spray Systems, ICLASS 2015 - Tainan, Taiwan, Province of China
Duration: Aug 23 2015Aug 27 2015

Conference

Conference13th International Conference on Liquid Atomization and Spray Systems, ICLASS 2015
CountryTaiwan, Province of China
CityTainan
Period8/23/158/27/15

Keywords

  • ABE
  • Acetone
  • Alternative fuels
  • Butanol
  • Ethanol
  • Spray characteristics

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

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