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      Performance of a diesel engine fueled with a preheated blend of soybean oil and petrodiesel Translated title: Desempenho de um motor diesel alimentado com uma mistura pré-aquecida de óleo de soja e petrodiesel

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          Abstract

          Brazil is doing a major effort to find alternatives to diesel oil as combustible. Some study lines are oriented to the development of vegetable oils used as fuel, as a source of getting cheaper and have higher energy density than the converted vegetable oils, and less risk of environmental contamination. The aim of this study was to evaluate the performance, the useful life of the lubricant and some components of a Diesel Cycle engine, with an electronic injection system, in a long-term test operating with a preheated blend (65°C) of 50% (v v-1) of soybean oil in petrodiesel. There was a reduction of the useful life of the injectors which presented failure because of high wear with 264 hours of operation and showed an increase in emissions of particulate matter (opacity) which may be assigned to the failures occurred in the injection system. An increase in the useful life of the lubricant, when compared with the literature was also observed. The electronic injection system may favor the burning of the tested fuel. The test was interrupted with 264 hours because of failures in the injection system.

          Translated abstract

          No Brasil, tem-se notado um grande esforço para encontrar alternativas ao óleo diesel como combustível. Algumas linhas de estudo estão direcionadas ao desenvolvimento dos óleos vegetais para tal fim, por ser uma fonte de obtenção de menor custo e ter densidade energética maior que os óleos vegetais transformados, além de apresentar menor risco de contaminação ambiental. O objetivo deste trabalho foi avaliar o desempenho, a vida útil do lubrificante e de alguns componentes de um motor Ciclo Diesel, com sistema de injeção eletrônica, em um ensaio de longa duração, sendo este alimentado com uma mistura pré-aquecida (65 °C) de 50% (v v-1) de óleo de soja no petrodiesel. Observou-se redução da vida útil dos injetores que apresentaram falha por desgaste elevado com 264 h de funcionamento e aumento da emissão de material particulado (opacidade), o que pode ser atribuído às falhas ocorridas no sistema de injeção. Também se observou aumento da vida útil do lubrificante, quando comparado com a bibliografia. O sistema de injeção eletrônica pode favorecer a queima do combustível testado. O ensaio foi interrompido com 264 h devido a falhas no sistema de injeção.

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          Most cited references23

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          Compression ignition engine modifications for straight plant oil fueling in remote contexts: Modification design and short-run testing

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            Prediction of deposit formation during combustion of Jatropha oil from standard quality parameters

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              • Article: not found

              Use of straight vegetable oil mixtures of rape and camelina as on farm fuels in agriculture

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                eagri
                Engenharia Agrícola
                Eng. Agríc.
                Associação Brasileira de Engenharia Agrícola (Jaboticabal )
                1809-4430
                December 2012
                : 32
                : 6
                : 1058-1067
                Affiliations
                [1 ] Universidade Estadual de Ponta Grossa Brazil
                [2 ] Universidade Estadual de Londrina Brazil
                Article
                S0100-69162012000600007
                10.1590/S0100-69162012000600007
                7c832c74-f16b-443f-bc4b-3e62390fff2a

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-6916&lng=en
                Categories
                AGRICULTURAL ENGINEERING

                Agricultural engineering
                Electronic injection,opacity,lubricant,Injeção eletrônica,opacidade,lubrificante

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