Combustion, performance and emissions of a diesel power generator with direct injection of B7 and port injection of ethanol

被引：0
作者：
Alex de Oliveira
André Marcelino de Morais
Osmano Souza Valente
José Ricardo Sodré
机构：
[1] Pontifical Catholic University of Minas Gerais,Department of Mechanical Engineering
[2] Birmingham City University,undefined
[3] School of Engineering and the Built Environment,undefined
来源：
Journal of the Brazilian Society of Mechanical Sciences and Engineering | 2017年 / 39卷
关键词：
Ethanol; Diesel engine; Combustion; Emissions; Power generation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This work investigates a diesel engine operating with diesel oil containing 7% biodiesel (B7) and hydrous ethanol with concentrations varying from 5 to 30%. The experiments were conducted in a 49-kW diesel power generator, equipped with an electronic ethanol injection unit installed in the intake manifold and without any modifications in the diesel oil injection system. The results showed a decrease of in-cylinder pressure and net heat release rate with the use of ethanol at low loads and an increase at high loads, in comparison with B7. Increasing ethanol injection caused increased ignition delay and decreased combustion duration. Fuel conversion efficiency was raised up to 13% with the use of ethanol. The use of 30% ethanol in the fuel caused a reduction of carbon dioxide (CO2) emissions up to 12% and nitric oxide up to 53%. Carbon monoxide, total hydrocarbons and oxides of nitrogen (NOX) emissions increased with ethanol addition. The replacement of 20% of diesel fuel by ethanol showed the lowest penalties on NOX emissions.
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页码：1087 / 1096
页数：9
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  • [11] Franco ALC(2013)Inter-cycle variability of in-cylinder pressure parameters in an ethanol fumigated common rail diesel engine Energy 52 55-65
  • [12] Cherubin MR(2003)The effect of ethanol blended diesel fuels on emissions from a diesel engine Atmos Environ 37 4965-4971
  • [13] Cerri CC(2010)Reducing emissions of a diesel engine using fumigation ethanol and a diesel oxidation catalyst Energy Fuel 24 6156-6165
  • [14] Pavinato PS(2013)Ethanol utilization in a diesel engine using dual-fueling technology Fuel 109 597-607
  • [15] Cerri CEP(2011)Effect of fumigation methanol and ethanol on the gaseous and particulate emissions of a direct-injection diesel engine Atmos Environ 45 2001-2008
  • [16] Six J(2014)Bioethanol E85 as a fuel for dual fuel diesel engine Energy Convers Manag 86 39-48
  • [17] Davies CA(2015)Emissions analysis of a diesel engine operating in diesel–ethanol dual-fuel mode Fuel 148 191-201
  • [18] Boretti A(2013)Hydrogen electronic injection system for a diesel power generator Int J Hydrog Energy 38 1-8
  • [19] Zhang ZH(2013)Hydrogen impacts on performance and CO Int J Hydrog Energy 38 6857-6864
  • [20] Cheung CS(2006) emissions from a diesel power generator Trans ASME J Eng Gas Turbine Power 128 928-933
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