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<p>This study examines the potential of benzyl alcohol as an additive in a premixed compression ignition (PCCI) engine fueled by a <i>Calophyllum inophyllum</i> oil–diesel blend. The objective is to assess the effects of fumigating benzyl alcohol at 10%, 15%, and 20% on engine performance, combustion characteristics, and emissions across load conditions. Experimental results show that adding benzyl alcohol significantly improves brake thermal efficiency (BTE), yielding a 5.5% gain over neat diesel at 20% benzyl alcohol. Additionally, brake-specific fuel consumption (BSFC) decreases by 7.5% at full load with the highest benzyl alcohol concentration. Emission analysis indicates reductions in carbon monoxide (CO) and hydrocarbon (HC) emissions, while nitrogen oxides (NOx) increase due to higher combustion temperatures at maximum load. This study suggests that benzyl alcohol fumigation, when used with biofuel blends, can improve fuel atomization, optimize combustion efficiency, and reduce reliance on fossil fuels, offering a promising pathway for sustainable energy solutions in diesel engines.</p>

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Premixed effects of aromatic alcohol (benzyl alcohol) on characteristics of a PCCI engine fueled by Calophyllum inophyllum oil–diesel blend

  • 期刊论文

  • 发表日期：

    2026年8月1日

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  • S Arulkumar,
  • Mathanraj Vijayaragavan

摘要

This study examines the potential of benzyl alcohol as an additive in a premixed compression ignition (PCCI) engine fueled by a Calophyllum inophyllum oil–diesel blend. The objective is to assess the effects of fumigating benzyl alcohol at 10%, 15%, and 20% on engine performance, combustion characteristics, and emissions across load conditions. Experimental results show that adding benzyl alcohol significantly improves brake thermal efficiency (BTE), yielding a 5.5% gain over neat diesel at 20% benzyl alcohol. Additionally, brake-specific fuel consumption (BSFC) decreases by 7.5% at full load with the highest benzyl alcohol concentration. Emission analysis indicates reductions in carbon monoxide (CO) and hydrocarbon (HC) emissions, while nitrogen oxides (NOx) increase due to higher combustion temperatures at maximum load. This study suggests that benzyl alcohol fumigation, when used with biofuel blends, can improve fuel atomization, optimize combustion efficiency, and reduce reliance on fossil fuels, offering a promising pathway for sustainable energy solutions in diesel engines.