Fuel consumption of gasoline ethanol blends at different engine rotational speeds

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• 作者：Y. Barakat ; Ezis N. Awad ; V. Ibrahim
• 关键词：Mid-level ethanol-gasoline blends ; Fuel consumption rate ; Chemical composition and consumption ; Some developed equation relating consumption and ethanol concentration
• 刊名：Egyptian Journal of Petroleum
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：25
• 期：3
• 页码：309-315
• 全文大小：982 K

文摘

Fuel consumption (m_f kg/h) was estimated for two hydrocarbon gasolines (BG₁-OE and BG₂-OE) and their ethanol blends which contain from 4 to 20 vol.% of ethanol. Fuel consumption experiments for sixteen fuel samples (5 L each), were conducted on a four cylinder, four stroke spark ignition test vehicle Sahin car, Type 1.45, model 2001. The engine has a swept volume of 1400 c.c., a compression ratio of 8.3:1 and a maximum power of 78 HP at 5500 rpm. The obtained data reveal that the relation between fuel consumption and ethanol concentration is linear. Six linear equations for BG₁-ethanol blends and BG₂-ethanol ones at the investigated rotational speeds, were developed. Fuel consumption values of the first set of gasoline-ethanol blends are lower than that of the second set. This may be attributed to the difference in the chemical composition of base gasolines BG₁ in the first set which is enriched in the less volatile reformate if compared with the second set which is more enriched in isomerate, the more volatile refinery stream.