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<p>With the growing environmental concern, new renewable fuels have been developed to meet the energy demand in the transportation sector. For compression ignition (CI) engines, biodiesel remains as the main renewable energy carrier, but recently developed fuels such as sugarcane-based farnesane have showed interesting potential for performance and emissions improvement. However, since farnesane is not yet widely produced as a fuel, blending it with common and renewable options such as biodiesel may facilitate a transition towards a sustainable transportation. The present study assesses the effect of blending biodiesel from waste cooking oil (WCO) with farnesane from combustion, emission, and performance perspectives. A single-cylinder diesel engine was fueled by farnesane, biodiesel and their blends, and compared to conventional diesel operation, and the effect of exhaust gas recirculation (EGR) was also assessed. Adding biodiesel to both diesel and farnesane increased peak-pressure by up to 2.3%, advanced the start of combustion by up to 0.3 CAD, and decreased CO (30.0%) and HC (10.0%) emissions, but increased NO<sub>x</sub> (13.4%). Ignition delay and PM emissions decreased when biodiesel was blended with diesel, but increased when it was blended with farnesane. Blending farnesane with biodiesel also slightly decreased indicated efficiency, but increased combustion efficiency, indicating that biodiesel may represent a suitable partial replacement of farnesane in diesel engines.</p>

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Use of sugarcane-derived farnesane and biodiesel blends for renewable diesel engine operation

  • 期刊论文

  • 发表日期：

    2026年2月28日

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  • T. A. Z. de Souza,
  • R. B. R. da Costa,
  • G. M. Pinto,
  • L. F. A. Roque,
  • G. V. Frez,
  • L. P. V. Vidigal,
  • F. L. G. Dias,
  • C. J. R. Coronado

摘要

With the growing environmental concern, new renewable fuels have been developed to meet the energy demand in the transportation sector. For compression ignition (CI) engines, biodiesel remains as the main renewable energy carrier, but recently developed fuels such as sugarcane-based farnesane have showed interesting potential for performance and emissions improvement. However, since farnesane is not yet widely produced as a fuel, blending it with common and renewable options such as biodiesel may facilitate a transition towards a sustainable transportation. The present study assesses the effect of blending biodiesel from waste cooking oil (WCO) with farnesane from combustion, emission, and performance perspectives. A single-cylinder diesel engine was fueled by farnesane, biodiesel and their blends, and compared to conventional diesel operation, and the effect of exhaust gas recirculation (EGR) was also assessed. Adding biodiesel to both diesel and farnesane increased peak-pressure by up to 2.3%, advanced the start of combustion by up to 0.3 CAD, and decreased CO (30.0%) and HC (10.0%) emissions, but increased NOx (13.4%). Ignition delay and PM emissions decreased when biodiesel was blended with diesel, but increased when it was blended with farnesane. Blending farnesane with biodiesel also slightly decreased indicated efficiency, but increased combustion efficiency, indicating that biodiesel may represent a suitable partial replacement of farnesane in diesel engines.