Effect of soybean oil ethyl ester/diesel fuel blends on engine efficiency

被引：7

作者：

Bueno, Andre Valente ^{[1
]}

Velasquez, Jose Antonio ^{[2
,3
]}

Milanez, Luiz Fernando ^{[4
]}

机构：

[1] Univ Fed Ceara, Dept Mech Engn, BR-60455760 Fortaleza, Ceara, Brazil

[2] Pontificia Univ Catolica Parana, Dept Mech Engn, BR-80215901 Curitiba, Parana, Brazil

[3] Fed Technol Univ Parana, Dept Mech Engn, BR-80215901 Curitiba, Parana, Brazil

[4] Univ Estadual Campinas, UNICAMP, Fac Mech Engn, Dept Energy, BR-13081970 Campinas, SP, Brazil

来源：

INTERNATIONAL JOURNAL OF VEHICLE DESIGN | 2009年 / 50卷 / 1-4期

关键词：

biodiesel; diesel engine; engine performance; exergy analysis; DI DIESEL-ENGINE; METHYL-ESTER; BIODIESEL BLENDS; PERFORMANCE; EMISSIONS; COMBUSTION; DESTRUCTION; PAH;

D O I：

10.1504/IJVD.2009.024976

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Variation of engine thermal efficiency in response to the addition of soybean oil ethyl ester to diesel fuel was analysed in terms of the ill-cylinder phenomena and fuel properties. Blends with concentrations of up to 30% of soybean oil ethyl ester in volume were used in steady-state experiments conducted in a high speed turbocharged direct injection engine. Engine internal processes were studied by means of exergy balances based on engine indicating data, which provided information about the impact of biodiesel blending on the amount of fuel exergy exchanged through heat, work and mass transfer. The data obtained from this exergy analysis served to identify the causes of the alterations in brake thermal efficiency measured in dynamometric bench tests. Operating in full load conditions and fuelled with the B20 blend, the engine showed ail average increase of 4.16% in brake thermal efficiency and a gross increase of 4.24% in indicated thermal efficiency in relation to its performance with mineral diesel fuel.

引用

页码：229 / 247

页数：19

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