Review
Chemistry, Physical
Xiurong Guo, Khanh Hop Ha, Danfeng Du
Summary: This comprehensive review discusses the application of plasma technology in diesel particulate matter treatment, including different techniques for addressing diesel particulate matter, as well as the challenges and the need for further research in this field.
Article
Physics, Fluids & Plasmas
Yunxi Shi, Yirui Lu, Yixi Cai, Yong He, Yin Zhou, Yi Chen, Huarong Qiu
Summary: Optimizing the packed-bed dielectric barrier discharge (DBD) technology can effectively increase the concentration of nonthermal plasma (NTP) active substances, thereby improving the regeneration efficiency of the diesel particulate filter (DPF). In addition, selecting the appropriate operating parameters and increasing the oxygen concentration can accelerate the regeneration process of DPF.
PLASMA SCIENCE & TECHNOLOGY
(2021)
Article
Energy & Fuels
Teerapong Iamcheerangkoon, Nuwong Chollacoop, Boonlue Sawatmongkhon, Thawatchai Wongchang, Sak Sittichompoo, Sathaporn Chuepeng, Kampanart Theinnoi
Summary: This research investigated the activity of nonthermal plasma (NTP) during NOx reduction and the soot characteristics in an unmodified Euro V diesel engine fueled with different biodiesel blends. The experiment found that biodiesel fuel produces lower levels of soot compared to diesel.
Article
Multidisciplinary Sciences
Eric Moreau, Etienne Defoort
Summary: This study investigates the ionic wind produced by corona discharge and finds that the high voltage waveform plays a significant role in the dynamics of the flow. Different waveforms have different effects on velocity production.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Environmental
Duc Ba Nguyen, Nosir Matyakubov, Shirjana Saud, Iljeong Heo, Sang-Joon Kim, Young Jin Kim, Jin Hee Lee, Young Sun Mok
Summary: A two-stage plasma catalyst system was researched for high-throughput NOx removal, showing that NO oxidation decreased with increasing feed gas humidity due to reduced O-3 generation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Applied
Ladislav Moravsky, Bartosz Michalczuk, Jana Hrda, Satoshi Hamaguchi, Stefan Matejcik
Summary: Ion mobility spectrometry was employed to monitor the degradation of phthalate vapors by corona discharge, finding high removal efficiencies and energetic degradation efficiencies, as well as identifying various byproducts and degradation mechanisms.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Energy & Fuels
Yongjin Jung, Youngdug Pyo, Jinyoung Jang, Youngmin Woo, Ahyun Ko, Gangchul Kim, Youngjin Shin, Chongpyo Cho
Summary: The study investigated the formation of Nitrous Oxide (N2O) over urea-based Selective Catalytic Reduction (SCR) systems using exhaust gases from a 3.4-liter non-road diesel engine. It was found that the formation of N2O was closely related to the SCR catalysts, the ratio of NO2 to NOx at the SCR inlet, and the SCR inlet temperatures. Depletion of NO played a crucial role in the start of N2O formation.
Article
Environmental Sciences
D. Hernandez-Diaz, D. Martos-Ferreira, V. Hernandez-Abad, R. Villar-Ribera, Q. Tarres, J. I. Rojas-Sola
Summary: This paper reviews the advantages and disadvantages of non-thermal plasma (NTP) generators for improving indoor air quality (IAQ), while also comparing the ability of different technologies in reducing PM2.5 concentration. The study found that the multipin corona discharge generator showed higher efficiency in removing fine particulate matter, compared to NTP generators.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Mechanics
Ghazanfar Mehdi, Sara Bonuso, Maria Grazia De Giorgi
Summary: This study experimentally characterizes the induced flow dynamics by a disk-needle-type plasma actuator, analyzing different plasma actuation conditions and standoff distances. The results show that the flow dynamics can be controlled by varying the plasma power or the gap distance between electrodes. The use of POD and LDV techniques provides insights into the flow behavior and the relation between POD energy and TKE.
Article
Physics, Fluids & Plasmas
Katam Nishanth, B. S. Rajanikanth
Summary: The study explores the use of nonthermal plasma to activate red mud, a cheap waste product from the aluminum industry, for catalyzing NOX removal in diesel exhaust. Results show that plasma catalysis combined with activated red mud at room temperature significantly improves NOX removal efficiency compared to traditional plasma treatments.
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2021)
Article
Physics, Multidisciplinary
Gaetan Wattieaux, Valentin Ferrer, Jean-Philippe Sarrette, Nofel Merbahi, Olivier Eichwald
Summary: The spatial and temporal evolution of ozone density in a 1 cm electrode gap pulsed corona discharge at atmospheric pressure with no gas flow was studied. The results showed a quasi uniform density of ozone up to 10 cm from the electrode gap after only 30 s of ignition, indicating a wide distribution of ozone in the reactor cell predominantly due to turbulence induced by the ionic wind. The mapping of ozone density with respect to power measurement allowed for the estimation of ozone production yield in terms of mass per electrical energy.
Article
Green & Sustainable Science & Technology
A. El-Tayeb, Adel Z. El-Dein, Ashraf Y. Elnaggar, Enas E. Hussein
Summary: The temperature of dye solution affects the removal efficiency of water-soluble and anionic acid dyes, with a specific dye showing better decolorization within a certain temperature range. A simulation model was introduced to analyze the effects of corona discharge plasma, showing a good match between experimental and simulated results. The pseudo-first-order model was found to best fit the experimental data among different reaction kinetics models.
Article
Chemistry, Multidisciplinary
Thawatchai Wongchang, Sak Sittichompoo, Kampanart Theinnoi, Boonlue Sawatmongkhon, Sumrerng Jugjai
Summary: Diesel particulate matter (DPM) and oxides of nitrogen (NOx) from diesel engines are strictly regulated due to environmental concerns. This study introduces an alternative diesel emission control technique using low-power, low-frequency, high-voltage discharge (HVD) treatment to significantly reduce particulate matter emissions. Experimental results show up to 95% reduction in particulate matter mass or 64% reduction by number, and a 63% reduction in diesel soot particle geometrical mean diameter through HVD-generated O-3 oxidation.
Review
Physics, Fluids & Plasmas
Srikanth Allamsetty, Apeksha Madhukar
Summary: This article reviews recent experimental studies on the removal of nitrogen oxides (NOX) from diesel engine exhausts using discharge plasma. The findings suggest significant progress in nonthermal plasma (NTP) treatment for NOX removal, with potential applications in cleaning gaseous pollutants from diesel exhaust.
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Eric Moreau, Etienne Defoort
Summary: The present study investigates the ionic wind produced by a dielectric barrier discharge and reveals that there are two different discharges occurring during one voltage cycle. The behavior of the ionic wind also varies depending on the high voltage frequency.
JOURNAL OF ELECTROSTATICS
(2022)