Fuel consumption and emissions from a diesel power generator fuelled with castor oil and soybean biodiesel

FUEL

卷:89

Article

Valente, Osmano Souza¹  da Silva, Marcio Jose¹  Duarte Pasa, Vanya Marcia²  Pereira Belchior, Carlos Rodrigues³  Sodre, Jose Ricardo¹ 

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

[2] Univ Fed Minas Gerais, Dept Chem, BR-31270901 Belo Horizonte, MG, Brazil

[3] Univ Fed Rio de Janeiro, Dept Mech Engn, BR-22245110 Rio De Janeiro, Brazil

关键词: Biodiesel;    Diesel engine;    Energy;    Emissions;    Fuel consumption;   

DOI  :  10.1016/j.fuel.2010.07.041

来源: Elsevier

【 摘 要 】

This work investigates the impacts on fuel consumption and exhaust emissions of a diesel power generator operating with biodiesel. Fuel blends with 5%, 20%, 35%, 50%, and 85% of soybean biodiesel in diesel oil, and fuel blends containing 5%, 20%, and 35% of castor oil biodiesel in diesel oil were tested, varying engine load from 9.6 to 35.7 kW. Specific fuel consumption (SFC) and the exhaust concentrations of carbon dioxide (CO(2)), carbon monoxide (CO), and hydrocarbons (HC) were evaluated. The engine was kept with its original settings for diesel oil operation. The results showed increased fuel consumption with higher biodiesel concentration in the fuel. Soybean biodiesel blends showed lower fuel consumption than castor biodiesel blends at a given concentration. At low and moderate loads, CO emission was increased by nearly 40% and over 80% when fuel blends containing 35% of castor oil biodiesel or soybean biodiesel were used, respectively, in comparison with diesel oil. With the load power of 9.6 kW, the use of fuel blends containing 20% of castor oil biodiesel or soybean biodiesel increased HC emissions by 16% and 18%, respectively, in comparison with diesel oil. Exhaust CO(2) concentration did not change significantly, showing differences lower than +/- 3% of the values recorded for diesel oil operation, irrespective of biodiesel type, concentration and the load applied. The results demonstrate that optimization of fuel injection system is required for proper engine operation with biodiesel. (C) 2010 Elsevier Ltd. All rights reserved.

【 授权许可】

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