Experimental Investigation of the Mechanical and Thermal Behavior of a PT6A-61A Engine Using Mixtures of JETA-1 and Biodiesel

Alberth Renne Gonzalez Caranton, Vladimir Silva Leal, Camilo Bayona-Roa, Manuel Alejandro Mayorga Betancourt, Carolina Betancourt, Deiver Cortina, Nelson Jimenez Acuña and Mauricio López
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Alberth Renne Gonzalez Caranton: Grupo de Investigación en Aprovechamiento Tecnológico de Materiales y Energía GIATME, Universidad ECCI, Cra. 19 No. 49-20, Bogotá 111311, Colombia
Vladimir Silva Leal: Grupo de Investigación en Aprovechamiento Tecnológico de Materiales y Energía GIATME, Universidad ECCI, Cra. 19 No. 49-20, Bogotá 111311, Colombia
Camilo Bayona-Roa: Grupo de Investigación en Aprovechamiento Tecnológico de Materiales y Energía GIATME, Universidad ECCI, Cra. 19 No. 49-20, Bogotá 111311, Colombia
Manuel Alejandro Mayorga Betancourt: Grupo de Investigación en Aprovechamiento Tecnológico de Materiales y Energía GIATME, Universidad ECCI, Cra. 19 No. 49-20, Bogotá 111311, Colombia
Carolina Betancourt: Bio D S. A, Dirección de Servicio Técnico, Terminal de Combustibles Sabana Mancilla, Bogotá 253051, Colombia
Deiver Cortina: Terpel S.A, Laboratorio de Calidad, Planta Mansilla, Terminal de Combustibles Sabana Mancilla, Bogotá 253051, Colombia
Nelson Jimenez Acuña: Grupo de Investigación en Electrónica y Tecnologías Para la Defensa, TESDA, Escuela de Suboficiales de la Fuerza Aérea Colombiana, ESUFA Fuerza Aérea Colombiana, FAC, Bogotá 111321, Colombia
Mauricio López: Grupo de Investigación en Electrónica y Tecnologías Para la Defensa, TESDA, Escuela de Suboficiales de la Fuerza Aérea Colombiana, ESUFA Fuerza Aérea Colombiana, FAC, Bogotá 111321, Colombia

Energies, 2021, vol. 14, issue 11, 1-22

Abstract: Biofuels are important additives to conventional fuels in combustion engines of the transport sector, as they reduce atmospheric emissions and promote environmental-friendly production chains. The mechanical and thermal performance of a PT6A-61A engine on a test bench of the Colombian Air Force operating with blends of JETA-1 and Biodiesel up to 25% volume values of substitution is evaluated in this work. Experimental results show that blends are operationally reliable up to 15% volume content. In that range, the engine operation is not compromised in terms of response variables. Moreover, experimental properties of fuel blends show that the freezing point—which is the most critical variable, does not comply with aeronautical regulations. The system dynamics are subject to several variations in the test parameters, which mainly affected fuel flow, Inter-Turbine Temperature (ITT), and engine performance. A Principal Component Analysis (PCA) is performed over the experimental results to quantify possible disturbances on the bench measurements. This is based on the fact that the study is restrained to stationary test bench conditions.

Keywords: PT6A-61A engine; JETA-1; biodiesel; mechanical behavior; principal component analysis (PCA); experimental fluctuations; fuel blending (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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