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The study of particulate matter (PM) emissions, including ultra-fine particles (UFPs), is crucial due to their severe influence on human well-being. The present work focuses on the elementary investigations of diesel flame-combustion by measuring the particulate emissions, with and without the addition of 100 ppm Alumina/Ceria nanoparticles (NPs), using a scanning mobility particle sizer (SMPS). Initial results indicate a decrease in the total number concentration (TNC) of particulate emissions within the size range of 23–711 nm when NPs are added to diesel. However, a detailed analysis reveals an increase in TNC for particulates smaller than 50 nm. This suggests that the NPs evolve during combustion, leading to an elevated number concentration (NC) in the ultra-fine particle region (< 50 nm). The size of NPs also plays a vital role in the improvement of the combustion process and PM emissions. The present study reveals that ball-milled nanofuel samples (NFS) show a better reduction in TNC of PM emissions (18.25% for A100BM, 20.70% for Ce100BM) when compared to bath-sonicated NFS (14.04% for A100BS, 15.09% for Ce100BS). The maximum reduction of 28.07 and 32.28% in PM emission is observed for Alumina-nanofuel and Ceria-nanofuel, respectively, when ball-milling and bath-sonication are combined.

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Experimental Investigations for the Particulate Matter and Ultra-Fine Particles Emissions During the Flame-Combustion of Alumina- and Ceria-Laden Diesel Fuel

  • 会议论文

  • 发表日期：

    2025年

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  • Akshat Jain,
  • Anirudha Ambekar,
  • Thaseem Thajudeen

摘要

The study of particulate matter (PM) emissions, including ultra-fine particles (UFPs), is crucial due to their severe influence on human well-being. The present work focuses on the elementary investigations of diesel flame-combustion by measuring the particulate emissions, with and without the addition of 100 ppm Alumina/Ceria nanoparticles (NPs), using a scanning mobility particle sizer (SMPS). Initial results indicate a decrease in the total number concentration (TNC) of particulate emissions within the size range of 23–711 nm when NPs are added to diesel. However, a detailed analysis reveals an increase in TNC for particulates smaller than 50 nm. This suggests that the NPs evolve during combustion, leading to an elevated number concentration (NC) in the ultra-fine particle region (< 50 nm). The size of NPs also plays a vital role in the improvement of the combustion process and PM emissions. The present study reveals that ball-milled nanofuel samples (NFS) show a better reduction in TNC of PM emissions (18.25% for A100BM, 20.70% for Ce100BM) when compared to bath-sonicated NFS (14.04% for A100BS, 15.09% for Ce100BS). The maximum reduction of 28.07 and 32.28% in PM emission is observed for Alumina-nanofuel and Ceria-nanofuel, respectively, when ball-milling and bath-sonication are combined.