Article
Environmental Sciences
Ibrahim Yildiz, Hakan Caliskan, Kazutoshi Mori
Summary: The study demonstrates the effectiveness of a cordierite-based diesel particulate filter (CPF) in reducing total particle concentration, soot concentration, CO and HC emissions from a diesel engine. However, the utilization of CPF also leads to an increase in CO2 and NOx emissions due to oxidation processes within the filter.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Environmental Sciences
Jianbin Luo, Haiguo Zhang, Zhonghang Liu, Zhiqing Zhang, Yajuan Pan, Xiguang Liang, Shizhuo Wu, Hongxiang Xu, Song Xu, Chunmei Jiang
Summary: With the global emphasis on environmental protection and carbon neutrality, there is a need for reductions in pollutants such as carbon dioxide, nitrogen oxide, and particulate matter. Diesel engines are a major contributor to particulate matter pollution, and diesel particulate filter (DPF) technology has proven to be effective in controlling soot. This review discusses the exacerbating effect of particulate matter on human infectious diseases, the latest developments in DPF performance, soot catalytic oxidant schemes, and areas for future research.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sangjun Choi, Ju-Hyun Park, Won Kim, Seung Won Kim, Kyong-Hui Lee, Taejin Chung, Jihoon Park, Seung-Hun Ryu, Jungah Shin, Dong-Hee Koh, Dong-Uk Park
Summary: This study aimed to characterize black carbon exposure among workers in various job types involving diesel engine vehicles. The results showed that workers in indoor environments had the highest exposure levels, and proximity to diesel exhaust sources and indoor working conditions were identified as the main factors influencing exposure.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Environmental Sciences
Yang Zhao, Mingdi Li, Guangju Xu, Shuai Liu, Yinnan Yuan, Zhong Wang
Summary: The study investigates the evolution of particles during diesel exhaust transport process and the effects of transport distance on particulate microstructure. Results show that as transport distance increases, particles exhibit longer chains, increased accumulation, and stacking, larger average diameter, and more disorderly carbon layers. Additionally, interlayer spacing and curvature of carbon particles increase with transport distance, leading to greater oxidative activity and decreased graphitization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Thermodynamics
B. Rossomando, E. Meloni, G. De Falco, M. Sirignano, I Arsie, V Palma
Summary: A detailed experimental characterization of the particle emissions of a EURO 5 light-duty Diesel engine equipped with a wall flow Diesel Particulate Filter (DPF) showed that the DPF has a high removal efficiency for particles, especially in the range of 10-40 nm. Engine operating conditions do not have a significant impact on particle emissions, while particle emissions during the regeneration phase are strongly dependent on DPF temperature.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Thermodynamics
Tiexiong Huang, Guangdi Hu, Zhongwei Meng, Dongjian Zeng
Summary: By conducting experimental tests and developing control strategies, it is possible to accurately control the regeneration temperature of the diesel particulate filter to ensure safe and efficient filter operation.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Xin Su, Hao Chen, Nan Gao, Meijuan Ding, Xiaochen Wang, Hongming Xu, Peng Zhang
Summary: This study investigates the use of cyclohexanol-diesel blends in diesel engines. The results show that the blends have a longer ignition delay and a shorter combustion duration, and increase NOx emissions. However, with the appropriate blending ratio and injection timing, the blended fuel can reduce particulate emissions.
Article
Energy & Fuels
Federico Millo, Theodoros Vlachos, Andrea Piano
Summary: This paper provides a comprehensive characterization of diesel Particulate Matter (PM) in terms of various factors, including mass, chemical composition, particles number, size distribution, and mutagenic potential. The study found that different fuel blends in a diesel engine can result in variations in the chemical composition and toxicity of PM. Biofuel blends showed negligible differences in particles number distributions compared to standard diesel, but had an impact on the mutagenic potential of PM samples.
Article
Thermodynamics
Wonmo Kang, Sukang Pyo, Hongsuk Kim
Summary: The study found that exhaust throttling is more effective in regenerating a diesel particulate filter compared to intake throttling, although it leads to higher fuel consumption. Additionally, intake throttling is more effective in reducing intake air mass flow rate. The feasibility of diesel particulate filter regeneration using exhaust throttling was verified through analyses of regeneration efficiency, fuel consumption, and exhaust concentration.
INTERNATIONAL JOURNAL OF ENGINE RESEARCH
(2021)
Article
Engineering, Chemical
Louise Gren, Vilhelm B. Malmborg, John Falk, Lassi Markula, Maja Novakovic, Sam Shamun, Axel C. Eriksson, Thomas B. Kristensen, Birgitta Svenningsson, Martin Tuner, Panu Karjalainen, Joakim Pagels
Summary: This study demonstrates that replacing petroleum diesel with renewable diesel (HVO and RME) can reduce primary particulate emissions and secondary aerosol production, especially when exhaust aftertreatment systems are in place.
JOURNAL OF AEROSOL SCIENCE
(2021)
Article
Engineering, Environmental
Zhiqing Zhang, Rui Dong, Dongli Tan, Bin Zhang
Summary: In this research, a hybrid multi-objective optimization approach of FGRA-RSM-MOPSO was developed for Diesel Particulate Filter (DPF) to improve its performance. Sensitivity analysis was conducted to identify key structural factors affecting DPF performance. Mathematical relationships between key parameters, initial filtration efficiency, and pressure drop were established using response surface methodology. Multiobjective particle swarm optimization was then employed to optimize the DPF and select the optimal solution from the Pareto front. The optimized DPF showed significant improvements in initial filtration efficiency and pressure drop reduction.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Zhizhou Cai, Fuwu Yan, Jie Hu, Hanming Wu, Maoxuan Wang, Yuankai Shao, Zhenguo Li
Summary: As diesel emission regulations become stricter, the durability of diesel aftertreatment systems has become a concern. This study investigated the regeneration performance of cordierite DPFs during drop-to-idle (DTI) processes. The findings provide important insights for the development of reliable regeneration strategies and optimization of substrate and catalyst designs.
Article
Energy & Fuels
Jinkyu Park, Jungmo Oh
Summary: Water-in-oil emulsion fuels can reduce nitrogen oxide and smoke emissions simultaneously by utilizing the latent heat from water particle evaporation and microexplosions, without the need for additional devices. They are suitable for existing diesel engines.
Article
Environmental Sciences
Joseph Tabor, Emily Sarver, John R. Saylor
Summary: A novel scrubber treatment for diesel particulate matter (DPM) removal has been successfully prototyped and field tested in a stone mine. The treatment involves using an exhaust blower to pull fog, diesel exhaust, and mine air through a long tube, resulting in DPM removal through rapid thermal coagulation and inertial impaction. The results showed an average improvement of 45% in particle removal compared to the control case without fog.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Mohammed A. . Fayad, Miqdam T. Chaichan, Hayder A. . Dhahad, Ahmed A. . Al-Amiery, Wan Nor Roslam Wan Isahak
Summary: This study successfully reduced the sulfur content in diesel fuel, improved engine performance, and reduced exhaust emissions by using gasoline-diesel blends and the concept of partially premixed combustion ignition. The combination of gasoline blending and fuel injection timing manipulation led to better and cleaner combustion. The use of gasoline-diesel blends and partially premixed combustion ignition resulted in a significant decrease in NOx emissions and a reduction in particle emissions.