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<p>The increasing demand for sustainable and environmentally friendly fuel solutions has driven research into biodiesel blends and advanced additives for diesel engines. This study evaluates the performance and emission characteristics of biodiesel blends derived from Mahua, corn, and algae oils, enriched with Laser-Induced Graphene (LIG) nanoparticles and hydrogen, in a single-cylinder compression ignition engine. Tested fuels included pure diesel (D100), biodiesel blends (BM20, BC20, BA20, and B20), and hydrogen-enriched B20 blends (BH2 to BH10) with varying hydrogen flow rates. Results demonstrated that biodiesel blends improved engine performance, with the B20 blend achieving optimal Brake Specific Fuel Consumption (BSFC) and Brake Thermal Efficiency (BTE). Introduction of hydrogen and LIG nanoparticles further enhanced performance, with the B20H10 blend achieving a 39.2% reduction in BSFC and a 45.8% increase in BTE at full load compared to D100. Emission analysis revealed substantial reductions in carbon monoxide (CO), hydrocarbons (HC), and smoke opacity, with the B20H10 blend reducing CO emissions by 76%, HC emissions by 66.8%, and smoke opacity by 51.9% at full load. Carbon dioxide (CO<sub>2</sub>) emissions also decreased by 28.8%, reflecting improved combustion efficiency. Although nitrogen oxide (NOx) emissions increased with biodiesel blends, the addition of hydrogen and LIG nanoparticles moderated these increases.</p>

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Effects of hydrogen and laser-induced graphene nanoparticles on the performance and emissions of a hybrid biodiesel blends with antioxidant in a diesel engine

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • Dhana Sekhar Yepuri,
  • P. Tamilarasan,
  • T. Dharma Raju,
  • A. Velmurugan

摘要

The increasing demand for sustainable and environmentally friendly fuel solutions has driven research into biodiesel blends and advanced additives for diesel engines. This study evaluates the performance and emission characteristics of biodiesel blends derived from Mahua, corn, and algae oils, enriched with Laser-Induced Graphene (LIG) nanoparticles and hydrogen, in a single-cylinder compression ignition engine. Tested fuels included pure diesel (D100), biodiesel blends (BM20, BC20, BA20, and B20), and hydrogen-enriched B20 blends (BH2 to BH10) with varying hydrogen flow rates. Results demonstrated that biodiesel blends improved engine performance, with the B20 blend achieving optimal Brake Specific Fuel Consumption (BSFC) and Brake Thermal Efficiency (BTE). Introduction of hydrogen and LIG nanoparticles further enhanced performance, with the B20H10 blend achieving a 39.2% reduction in BSFC and a 45.8% increase in BTE at full load compared to D100. Emission analysis revealed substantial reductions in carbon monoxide (CO), hydrocarbons (HC), and smoke opacity, with the B20H10 blend reducing CO emissions by 76%, HC emissions by 66.8%, and smoke opacity by 51.9% at full load. Carbon dioxide (CO2) emissions also decreased by 28.8%, reflecting improved combustion efficiency. Although nitrogen oxide (NOx) emissions increased with biodiesel blends, the addition of hydrogen and LIG nanoparticles moderated these increases.