Ethanol–biodiesel–Diesel fuel blends: Performances and emissions in conventional Diesel and advanced Low Temperature Combustions

Pidol, Ludivine; Lecointe, Bertrand; Starck, Laurie; Jeuland, Nicolas

doi:10.1016/j.fuel.2011.09.008

Cited by 125 publications

(61 citation statements)

References 35 publications

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“…Therefore, ethanol was chosen as effective biofuels to reduce the emission concentration from diesel combustion by contributing its potential due to its availability in large volume and second generation process in future [2]. Ethanol can be blended with diesel in the tank or injected into the cylinder to reduce the exhausted pollution [3].…”

Section: Introductionmentioning

confidence: 99%

“…All ethanol thermo-physical properties are explained in Table 1. Therefore, an emulsifier or co-solvent are needed to maintain the stability of diesel ethanol blend [2] and to act as fuel enhancer to improve engine performance and reducing NO emission. Many researchers have studied about the performance and emission of the diesel ethanol blend.…”

Section: Introductionmentioning

confidence: 99%

“…However, the oxygen content in biofuels gives some effect on NOx emission because oxygen contents in biofuels lead the combustion into lean combustion and at a very high-temperature, nitrogen gas may split to produce NOx. When discussing the diesel ethanol stability, PME has the special ability as co-solvent or amphiphile (surface reactant agent) [2] where PME has the most stable HLB (Hydrophile-Lipophile Balance) value for w/o emulsions. PME was used as co-solvent to stabilize the blends at a different temperature.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

et al. 2016

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Abstract. Diesel engine is known as the most efficient engine with high efficiency and power but always reported as high fuel emission. Malaysia National Automotive Policy (NAP) was targeting to improve competitive regional focusing on green technology development in reducing the emission of the engine. Therefore, ethanol was introduced to reduce the emission of the engine and while increasing its performance, Palm methyl ester was introduced as blend enhancer to improve engine performance and improve diesel-ethanol blends stability. This paper aimed to study the characteristics of the blends and to prove the ability of palm-methyl-ester as co-solvent in ethanol-diesel blends. Stability and thermophysical test were carried out for different fuel compositions. The stability of dieselethanol blended was proved to be improved with the addition of PME at the longer period and the stability of the blends changed depending on temperature and ethanol content. Density and viscosity of diesel-ethanol-PME blends also give higher result than diesel-ethanol blends and it's proved that PME is able to increase density and viscosity of blends. Besides, heating value of the blends also increases with the increasing PME in diesel-ethanol blends.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

et al. 2016

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“…Diversos estudos indicam redução das emissões de NOX e fuligem com a utilização de misturas de óleo diesel e etanol [10,13,18,[20][21][22][23][24][25][26][27], mas com possibilidade de aumento, principalmente com o aumento da pressão no interior do cilindro [25,[27][28][29][30] A adição de etanol pode aumentar as emissões de hidrocarbonetos não queimados e CO [10,13,18,[21][22][23][24][25][26]30]. A eficiência de conversão de energia do combustível também é dependente das condições de operação, havendo relatos de redução ou aumento com a adição de etanol [10,13,21,25].…”

Section: Introductionunclassified

Características da combustão de um motor diesel com injeção direta de misturas de óleo diesel e etanol e injeção indireta de etanol

Oliveira¹,

Sodré²

2016

Anais Do XXIV Simpósio Internacional De Engenharia Automotiva

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RESUMOPesquisas sobre a aplicação de combustíveis renováveis alternativos em motores Diesel têm ganho interesse. A estratégia de operação bicombustível, usando etanol e óleo diesel como combustíveis, é atraente devido ao potencial de reduzir as emissões regulamentadas, como óxidos de nitrogênio (NOX) e material particulado (MP), e aumentar a eficiência de conversão do combustível. Para compreender claramente os efeitos da utilização da técnica bicombustível em motores diesel, existe a necessidade de estudar os parâmetros de combustão. A presente investigação avaliou os efeitos da utilização de etanol por duas técnicas distintas, injeção direta de misturas de óleo diesel e etanol e injeção indireta de etanol com injeção direta de óleo diesel. Foram avaliados a taxa de aumento de pressão no cilindro, o atraso da ignição e a taxa líquida de liberação de calor para determinar a duração da combustão e o ângulo do virabrequim em que há liberação de 50% do calor total (CA50). Altas taxas de aumento de pressão podem causar detonação no cilindro e o parâmetro CA50 é importante, pois traduz a eficiência de conversão de energia do combustível no motor. Os testes foram realizados em um motor diesel de quatro cilindros, 44 kW, alimentado por misturas de óleo diesel e etanol com concentrações de até 15% de etanol e injeção indireta de até 30% de etanol. Os resultados mostraram que a adição do etanol causou um aumento no atraso de ignição, na taxa de acréscimo da pressão no cilindro e na duração de combustão reduzida, com aumento da quantidade de calor liberado durante a fase pré-misturada da combustão. Não foram observados danos ao motor com a adição de etanol. INTRODUÇÃOOs combustíveis fósseis estão presentes em inúmeras áreas da economia e foram fundamentais para o crescimento e modernização da civilização, tornando-se indispensáveis para diversos setores como indústria, transporte, geração de energia, agricultura, dentre outros [1]. Nos últimos anos, houve um grande aumento das fiscalizações das emissões de motores de combustão interna e crescente preocupação com o meio ambiente. Os motores diesel são um dos motores térmicos mais utilizados no setor de transporte, se destacando pela alta eficiência de conversão de energia, alto torque e confiabilidade, em relação aos motores com ignição por centelha [2]. Apesar da maior eficiência, os motores diesel emitem maiores níveis de óxidos de nitrogênio (NOX) e material particulado (MP). Pesquisas para aumentar a eficiência de conversão do combustível e reduzir os níveis de emissões são

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“…Diesel engines have many advantages, for example simplicity, high performance, less maintenance, low fuel costs, low fuel consumption, high compression ratio, high power/weight ratio and durability [1]. But, its disadvantages are the exhaust of diesel engines are one of the major contributions to the air pollution problem, such as particulate matter, hydrocarbons, and carbon monoxide emissions [2].…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling on homogeneous charge compression ignition combustion engine fueled by diesel-ethanol blends

et al. 2016

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Abstract. This paper investigates the performance and emission characteristics of HCCI engines fueled with oxygenated fuels (ethanol blend). A modeling study was conducted to investigate the impact of ethanol addition on the performance, combustion and emission characteristics of a Homogeneous Charge Compression Ignition (HCCI) engine fueled by diesel. One dimensional simulation was conducted using the renowned commercial software for diesel and its blend fuels with 5% (E5) and 10% ethanol (E10) (in vol.) under full load condition at variable engine speed ranging from 1000 to 2750 rpm with 250 rpm increment. The model was then validated with other researcher's experimental result. Model consists of intake and exhaust systems, cylinder, head, valves and port geometries. Performance tests were conducted for volumetric efficiency, brake engine torque, brake power, brake mean effective pressure, brake specific fuel consumption, and brake thermal efficiency, while exhaust emissions were analyzed for carbon monoxide (CO) and unburned hydrocarbons (HC. The results showed that blending diesel with ethanol increases the volumetric efficiency, brake specific fuel consumption and brake thermal efficiency, while it decreases brake engine torque, brake power and brake mean effective pressure. In term of emission characteristics, the CO emissions concentrations in the engine exhaust decrease significantly with ethanol as additive. But for HC emission, its concentration increase when apply in high engine speed. In conclusion, using Ethanol as fuel additive blend with Diesel operating in HCCI shows a good result in term of performance and emission in low speed but not recommended to use in high speed engine. Ethanol-diesel blends need to researched more to make it commercially useable.

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Ethanol–biodiesel–Diesel fuel blends: Performances and emissions in conventional Diesel and advanced Low Temperature Combustions

Cited by 125 publications

References 35 publications

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

Investigation of diesel-ethanol blended fuel properties with palm methyl ester as co-solvent and blends enhancer

Características da combustão de um motor diesel com injeção direta de misturas de óleo diesel e etanol e injeção indireta de etanol

Numerical modeling on homogeneous charge compression ignition combustion engine fueled by diesel-ethanol blends

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