Performance and combustion characteristics of alcohol-gasoline blends at wide-open throttle


ÖZSEZEN A. N. , ÇANAKCI M.

ENERGY, cilt.36, ss.2747-2752, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 36 Konu: 5
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.energy.2011.02.014
  • Dergi Adı: ENERGY
  • Sayfa Sayıları: ss.2747-2752

Özet

This study discusses the performance and exhaust emissions of a vehicle fueled with low content alcohol (ethanol and methanol) blends and pure gasoline. The vehicle tests were performed at wide-open throttle and at vehicle speeds of 40 km h(-1), 60 km h(-1), 80 km h(-1) and 100 km h(-1) by using an eddy current chassis dynamometer. The test results obtained with the use of alcohol-gasoline blends (5 and 10 percent alcohol by volume) were compared to pure gasoline test results. The test results indicated that when the vehicle was fueled with alcohol-gasoline blends, the peak wheel power and fuel consumption slightly increased. And also, in general, alcohol-gasoline blends provided higher combustion efficiency compared to pure gasoline use. In exhaust emission results, a stable trend was not seen, especially for CO emission. But, on average, alcohol-gasoline blends exhibited decreasing HC emissions. In 100 km h(-1) vehicle speed test, the alcohol-gasoline blends provided lower vehicle performance and lower NOx emission values compared to pure gasoline. At all vehicle speeds, minimum CO2 emission was obtained when 5% methanol was added in gasoline. The low content alcohol blends did not reveal any starting problem, or irregular operation on the engine. (C) 2011 Elsevier Ltd. All rights reserved.