Balancing Efficiency and Emissions: A Study on Biodiesel‐Hydrogen Dual‐Fuel Engine Performance Under Varying Injection Timings DOI Creative Commons

P. Vasanthkumar,

Manikandan Ezhumalai, Mohan Govindasamy

et al.

Engineering Reports, Journal Year: 2025, Volume and Issue: 7(5)

Published: May 1, 2025

ABSTRACT The growing demand for cleaner energy sources has intensified research on alternative fuels diesel engines to mitigate environmental concerns. This study presents a novel approach by investigating the combined effect of injection timing (IT) and hydrogen enrichment performance, combustion, emissions single‐cylinder, four‐stroke variable compression ratio (VCR) engine fueled with CI20 biodiesel‐hydrogen dual‐fuel blend. Injection timings IT24, IT27, IT30, IT33 degrees before TDC flow rates 4, 8, 12, 16 LPM were tested. showed that IT30 operating produced maximum brake thermal efficiency (BTE) 32.7% minimum brake‐specific fuel consumption (BSFC) 0.26 kJ/kWh while working at full load. experimental conditions led 7.7% higher cylinder pressure an 8% enhancement heat release rate when compared basic operation. emission analysis carbon monoxide (CO) decreased 48%, hydrocarbons (HC) 22.2%, smoke opacity diminished 34.3%, NO x rose 6.3% 755 ppm due combustion temperatures. Response Surface Methodology (RSM) optimization found IT30.25° should be used H 2 as best condition, which forecasts 32.52% output 751 ppm. work brings innovative combining biodiesel through precise control adjustments, received statistical validation diagnostic methods. obtained data create performance‐enhanced pathway improve under BS‐VI Euro VI standards CI20‐hydrogen blends, demonstrate potential efficient decarbonized technology solutions.

Language: Английский

Balancing Efficiency and Emissions: A Study on Biodiesel‐Hydrogen Dual‐Fuel Engine Performance Under Varying Injection Timings DOI Creative Commons

P. Vasanthkumar,

Manikandan Ezhumalai, Mohan Govindasamy

et al.

Engineering Reports, Journal Year: 2025, Volume and Issue: 7(5)

Published: May 1, 2025

ABSTRACT The growing demand for cleaner energy sources has intensified research on alternative fuels diesel engines to mitigate environmental concerns. This study presents a novel approach by investigating the combined effect of injection timing (IT) and hydrogen enrichment performance, combustion, emissions single‐cylinder, four‐stroke variable compression ratio (VCR) engine fueled with CI20 biodiesel‐hydrogen dual‐fuel blend. Injection timings IT24, IT27, IT30, IT33 degrees before TDC flow rates 4, 8, 12, 16 LPM were tested. showed that IT30 operating produced maximum brake thermal efficiency (BTE) 32.7% minimum brake‐specific fuel consumption (BSFC) 0.26 kJ/kWh while working at full load. experimental conditions led 7.7% higher cylinder pressure an 8% enhancement heat release rate when compared basic operation. emission analysis carbon monoxide (CO) decreased 48%, hydrocarbons (HC) 22.2%, smoke opacity diminished 34.3%, NO x rose 6.3% 755 ppm due combustion temperatures. Response Surface Methodology (RSM) optimization found IT30.25° should be used H 2 as best condition, which forecasts 32.52% output 751 ppm. work brings innovative combining biodiesel through precise control adjustments, received statistical validation diagnostic methods. obtained data create performance‐enhanced pathway improve under BS‐VI Euro VI standards CI20‐hydrogen blends, demonstrate potential efficient decarbonized technology solutions.

Language: Английский

Citations

0