Combustion characteristics, performance and emissions from a diesel power generator fuelled by B7-ethanol blends

被引：48

作者：

de Oliveira, Alex ^{[1
]}

de Morais, Andre Marcelino ^{[1
]}

Valente, Osmano Souza ^{[1
]}

Sodre, Jose Ricardo ^{[1
]}

机构：

[1] Pontificia Univ Catolica Minas Gerais, Dept Mech Engn, BR-30535610 Belo Horizonte, MG, Brazil

来源：

FUEL PROCESSING TECHNOLOGY | 2015年 / 139卷

关键词：

Ethanol; Diesel engine; Combustion; Emissions; Power generation; BIODIESEL BLENDS; ETHANOL; ENGINE; FUMIGATION;

D O I：

10.1016/j.fuproc.2015.08.010

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effects of fuel blends containing 5,10 and 15 wt.% of anhydrous ethanol in diesel oil with 7% of biodiesel (B7) on performance, emissions and combustion characteristics of a diesel power generator are investigated. The engine was tested with its original configuration, with the fuel blends directly injected into the combustion chamber, and the applied load varied from 5 to 37.5 kW. The results were compared with standard B7 operation, and showed that in in-cylinder peak pressure and heat release rate were decreased at low loads and increased at high loads with the use of ethanol. Increasing ethanol concentration caused increased ignition delay, decreased combustion duration and reduced exhaust gas temperature. The use of ethanol decreased carbon dioxide (CO2) emissions, up to 8.6% lower than B7. Carbon monoxide (CO), total hydrocarbons (THC) and oxides of nitrogen (NOx) emissions showed different behavior, depending on load and ethanol concentration. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：67 / 72

页数：6

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