Mixture condition, combustion and sooting characteristics of ethanol–diesel blends in diffusion flames under various injection and ambient conditions

Moon, Seoksu; Tsujimura, Taku; Oguma, Mitsuharu; Chen, Zhili; Huang, Zhenhai; Saitou, Takatoshi

doi:10.1016/j.fuel.2013.05.060

Cited by 38 publications

(10 citation statements)

References 38 publications

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“…Firstly, ethanol is produced from raw material of plant or plant waste origin, qualifying as alternative renewable source of energy and, secondly, its high oxygen content and solubility in WPPO blends (Lapuerta et al, 2008;Shahir et al, 2014;Kwanchareon et al, 2007;Fernando and Hanna, 2004;Li et al, 2005). Several studies have, however, shown that an increase in the ethanol fraction decreases the autoignition properties of diesel because of its low propensity to auto-ignite (Chacartegui et al, 2007;Tutak et al, 2015;Hansen et al, 2005;Kwanchareon et al, 2007;Kim and Choi, 2008;Moon et al, 2013;Can et al, 2004;Rakopoulos et al, 2008;Yilmaz et al, 2014;Kuszewski et al, 2017). The cetane number-value of the blends with diesel decreases as the fraction of ethanol increases (Chacartegui et al, 2007;Hansen et al, 2005;Can et al, 2004;Kuszewski et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Maroa

Inambao²

2019

J. energy South. Afr.

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The growth in demand for power generation and energy from alternative fuels at low cost and friendly to the natural environment is increasing. This study used waste plastic pyrolysis oil (WPPO) and ethanol to apply direct blending of conventional diesel, WPPO and ethanol with 2-ethyl hexyl nitrate (EHN). The purpose was to improve the combustion and performance characteristics of the WPPO blends. The EHN has the potential to reduce emissions of carbon dioxide, carbon monoxide, unburnt hydrocarbon, oxides of nitrogen and particulate matter. Ethanol improves viscosity, miscibility, and the oxygen content of WPPO. Five mixing ratios were selected. The mixing ratio with EHN was based on total quantity of blended fuel at 0.01%. At 50% engine load, the brake specific fuel consumption was 0.043 g/kWh compared with CD at 0.04 g/kWh. The blend 90/WPPO5/E5 had the highest value of 14% for brake thermal efficiency, while on NO X emissions three blends 90/WPPO5/E5, 80/WPPO10/E10, 70/WPPO15/E15, had the lowest values of 384 ppm, 395 ppm, 414 ppm, compared with CD fuel at 424 ppm. The implication was that ethanol and WPPO blends can be used in diesel engine power generators as an alternative fuel with modification, as their respective densities of 792 kg/m 3 and 825 kg/m 3 are close to CD fuel's at 845 kg/m 3 . Additionally, these combinations with EHN reduced emissions more than earlier thought and improved engine performance, equalling that of conventional diesel fuel.

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Section: Introductionmentioning

confidence: 99%

The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Maroa

Inambao²

2019

J. energy South. Afr.

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“…Thus, many researchers have attempted to use ethanol in diesel engines not only as a partial substitute for diesel fuel but also to reduce NOx and soot emissions [12e14]. Moon et al [15] studied the properties of the diffusion flames of diesel/ethanol mixtures and found that when ethanol constituted less than 30% of the volume of the mixture there was little effect on fuel atomization. Blending of diesel fuel with ethanol leads to a decline in fuel CN (cetane number), and this produces an increase in ignition delay.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on combustion and emissions of RCCI (reactivity controlled compression ignition) with gasoline/n-heptane and ethanol/n-heptane as fuels

Qian

Wang

Zhu

et al. 2015

Energy

105

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“…Já misturas de diesel e etanol (DE), também conhecidas como diesol ou e-diesel, são pesquisadas desde 1980, e os resultados demonstraram não ser necessário realizar modificações nos motores a diesel da época (PIDOL et al, 2012). A utilização do etanol em sua forma direta, no motor a diesel, não apresenta resultados satisfatórios devido a seu baixo ponto de autoignição, viscosidade, número de cetano e lubricidade, que não são compatíveis com as características exigidas pelo ciclo diesel (MOON et al, 2013).…”

Section: Introductionunclassified

Uso De Diferentes Proporções De Etanol No Biodiesel Em Um Motor Estacionário

Umbelino

Sousa²,

Massola³

et al. 2019

Reveng

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O motor a diesel é um dos equipamentos mais empregados nas propriedades agrícolas, sendo usado para a geração de energia e de força mecânica. Objetivou-se, neste estudo, avaliar o desempenho de um motogerador alimentado com diferentes concentrações de etanol no biodiesel e com diferentes cargas aplicadas. O delineamento utilizado foi inteiramente ao acaso (DIC) com três repetições, sendo os tratamentos dispostos em parcelas subdivididas em 5 x 5, em que foram distribuídas as concentrações de etanol no biodiesel (0, 10, 20, 30 e 40%) e, nas subparcelas, as cargas (0, 500, 1000, 1500 e 2000 W). Foram determinadas as emissões de monóxido de carbono, o consumo horário e o consumo específico do conjunto motogerador. Os resultados foram submetidos à análise de variância pelo teste de F a 5% e as médias foram apresentadas por equações de regressão. O aumento percentual do etanol no biodiesel apresentou maior emissão de CO em todas as cargas demandadas. O aumento do percentual de etanol no biodiesel aumentou o consumo horário até a carga de 1500 W, visto que, aplicando-se uma carga de 2000 W, o consumo específico diminuiu de acordo com a maior porcentagem de etanol no biodiesel, como também o aumento percentual de etanol no biodiesel proporcionou aumento no consumo específico até a carga de 1500 W.

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Mixture condition, combustion and sooting characteristics of ethanol–diesel blends in diffusion flames under various injection and ambient conditions

Cited by 38 publications

References 38 publications

The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Experimental studies on combustion and emissions of RCCI (reactivity controlled compression ignition) with gasoline/n-heptane and ethanol/n-heptane as fuels

Uso De Diferentes Proporções De Etanol No Biodiesel Em Um Motor Estacionário

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