Experimental evaluation of alternative ethanol rates’ effects on relative λ air/fuel ratio of diesel engines using diesel-ethanol dual fuel

  • Nguyễn Thành Băc
  • Trần Anh Trung

Abstract

The research, development and application of alternative fuels is a common trend in many
countries around the world, in order to reduce their dependence on fossil fuels, to secure
energy security and to reduce the impact on the environment, especially greenhouse gases.
In particular, ethanol is considered one of the potential fuels for diesel engines. There have
been many domestic and foreign research projects to evaluate the effect of LPG, CNG
replacement ratio on relative air/fuel ratio λ for diesel engines using diesel-LPG and dieselCNG. However, no published empirical study has evaluated the effects of alternative ethanol
rates on relative air/fuel ratio λ for diesel engines using diesel-ethanol. This paper presents
an empirical study evaluating the effect of alternative ethanol rates on relative air/fuel ratio λ
on diesel engine using diesel-ethanol dual fuel which the alternative ethanol rates was
controlled conform to different engine modes. The method of controlling alternative ethanol
ratio used in this research is different from other published researches, as previous published
researches only evaluated the effects of alternative ethanol rates while using blended dieselethanol and spraying with alternative ethanol rates of 5%, 10%, 20%... Experimental results
show that relative air/fuel ratio λ is greater than 1.2, indicating that the normal working
conditions of the diesel engine are ensured according to this criterion.
điểm /   đánh giá
Published
2019-07-19