Influence of hydrogenated diesel/H2O2 blend fuel on diesel engine performance and exhaust emission characterization
Iqbal Ahmed, Muhammad Saad Khan, Hani Abulkhair, Amer Shaiban, Hussam Organji, Abdulmohsen Alsaiari
Abstract
Abstract The oxygenated hydro diesel (OHD) is prepared from hydrogen peroxide (H 2 O 2 ), acetone, and seaweed polysaccharide. A long-term study was carried out on the OHD fuel blend stability for about a year at various temperatures. The long-term stability shows very stable properties, no easy emulsion breaking, and a long storage period. The neat diesel and blend fuel performance test was conducted at various engine speeds, 1700–3100 RPM the diesel blend with 5 wt.% and 10 wt. % of H 2 O 2 revealed the best fraction for reducing smoke and emissions. The blend contains 15 wt.% H 2 O 2, revealing a significant reduction in exhaust temperature without considering the engine's performance. Moreover, the performance of the OHD also revealed an economizing rate, decreasing environmental pollution and prolonging the engine’s service life. The diesel engine performance and environmental evaluation leading to exhaust emissions characterization ( $${\mathrm{CO}}_{\mathrm{X}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>CO</mml:mi> <mml:mi>X</mml:mi> </mml:msub> </mml:math> , $${\mathrm{SO}}_{\mathrm{X}}, {\mathrm{NO}}_{\mathrm{X}}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>SO</mml:mi> <mml:mi>X</mml:mi> </mml:msub> <mml:mo>,</mml:mo> <mml:msub> <mml:mi>NO</mml:mi> <mml:mi>X</mml:mi> </mml:msub> </mml:mrow> </mml:math> , and others). Based on the results, the various concentrations of H 2 O 2 are an effective method for reducing the emission of diesel engines. Decreased CO, SO 2 , unburned hydrocarbons, and NO 2 were also observed as percentages of H 2 O 2 . Due to increased oxygen content, water content and cetane number, the number of unburned hydrocarbons from diesel fuel decreased with the addition of H 2 O 2 . Therefore, the OHD blend can significantly curtail the exhaust emission of conventional diesel fuel, which will help reduce the harmful greenhouse gas emissions from diesel fuel sources.