Experimental study on combustion and emission characteristics of fatty acid methyl esters and hydrogenated catalytic biodiesel/diesel blends under world harmonized steady state cycle. (1st July 2023)

• Record Type: Journal Article
• Authors: Zhong, Wenjun; Yan, Feibin; Wang, Jing; Gao, Wenli; Xu, Guisheng; He, Zhixia; Hua, Lun; Wang, Qian
• Is Part Of: Fuel. Volume 343(2023)
• Publication Date: 2023-07-01
• Subjects: Fatty acid methyl ester -- Hydrogenated catalytic biodiesel -- World harmonized steady state cycle -- Combustion -- Emission -- Compression-ignition engines; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2023.127887
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: The combustion and emission characteristics of FAME and HCB blends were investigated. The D80H20 reduces BSFC, NOx and THC emissions by 4.15%, 5.42% and 6.52% respectively compared to D100. D80H20 has more cost-effective than D80B20. Model 11 performs best from a combined economy and emission characteristics perspective. Abstract: Clean and renewable biodiesel demonstrates excellent potential for replacing fossil-based fuels and reducing CO2 emissions. However, comparative studies on the applicability of fatty acid methyl ester and hydrogenated catalytic biodiesel still need to be included in practical application conditions of light-duty engines. Therefore, a comparative study on the combustion and emission performance of fatty acid methyl ester/diesel and hydrogenated catalytic biodiesel/diesel blends was conducted based on the World Harmonized Steady State Cycle in this research. The results show that except for the idling condition Region E, compared with D100, D80H20 has lower CA50 and ignition delay period, higher maximum cylinder pressure; while D80B20 has lower CA10, lower maximum cylinder pressure. The brake specific fuel consumption of all fuels is the lowest in mode 10, and the brake specific fuel consumption of D80B20 is 1.49% higher than that of D100. While D80H20 is 0.86% lower than that of D100. In Mode 8, NOx and CO2 emissions were the lowest for all fuels, and compared to D100, NOx and CO2 emissions were 4.7%, 3.8%, 4.83%, and 2.81% lower for D80H20 and D80B20, respectively. The brake specific fuel consumption, NOx, and THC emissions of D80H20 were reduced by 4.15%, 5.42%, and 6.52%, respectively, compared to D100 in all models, while the NOx, THC and CO2 emissions of D80B20 were reduced by 6.9%, 23.1%, and 4.9%, respectively. Relative to D80B20, D80H20 has a better economy, but the emission problem cannot be ignored. Model 11 performs best from a combined economy and emission characteristics perspective.