Characterization of Particulate from Biodiesel-Blended Engine Equipped with Exhaust Nonthermal Plasma Charger Using Thermo-Gravimetric Analysis

Thitipatanapong, Sarapon; Chuepeng, Sathaporn; Visuwan, Poranat

doi:10.4271/2015-01-0111

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…Smaller PM particles can be suspended in the air for long periods and are the main cause of haze. Thus, to reduce the emission of PM from diesel engines, scholars both domestic and abroad have actively carried out relevant studies. − …”

Section: Introductionmentioning

confidence: 99%

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Cai

Shi

et al. 2020

Environ. Sci. Technol.

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To investigate the effect of nonthermal plasma (NTP) on the microstructure and oxidation characteristics of particulate matter (PM) from diesel engines at different oxidation stages, a self-designed NTP reactor was used to conduct a timevarying oxidation test on PM samples. The oxidized PM samples were analyzed via thermogravimetric analysis and Raman spectroscopy. The results indicated that the effect of NTP could allow the elemental carbon (EC) to more easily start ignition. The oxidation activity of the EC decreased when the action time of the NTP was less than 5 min. Conversely, when the NTP action time was more than 5 min, the EC oxidation activity gradually increased. When the NTP was active for more than 10 min, it rapidly reacted with the EC, and the oxidation priority of the volatile fraction was higher than that of the EC. During the oxidation process, there are many forms of carbon structures in the particles and they have a mutual transmission relationship. The variation trend of the graphitization degree was consistent with that of the thermogravimetric results, indicating that the degree of graphitization directly affected the PM oxidation activity.

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Section: Introductionmentioning

confidence: 99%

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Cai

Shi

et al. 2020

Environ. Sci. Technol.

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“…Fuel type and engine load are among various parameters concerned. The particles comprising elemental carbon (EC) and VOC seem to be affected in the NTP state, especially for WCO, whereas its EC portion is lesser . PM in the NTP state can reduce the EC with WCO and D100 fueling, particularly at a medium load where the exhaust temperature was not that high.…”

Section: Resultsmentioning

confidence: 99%

Insight into Nanoparticle-Number-Derived Characteristics of Precharged Biodiesel Exhaust Gas in Nonthermal Plasma State

et al. 2022

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The utilization of biodiesel as an alternative partial replacement of diesel fuel was shown to improve exhaust emissions from diesel engines. Waste cooking oil biodiesel (WCO) has also gained more attention due to edible biofuel supply and the environment. In this study, a nonthermal plasma (NTP) technique was applied to be equipped into the after-treatment system of a four-cylinder diesel engine at medium- and high-load conditions. The exhaust gases in the NTP state from the combustion of WCO and diesel (D100) fuels were partially drawn by spectrometers and nanoparticle-number-derived characteristics were analyzed. The particle number, area, and mass concentrations were in log-normal distribution over equivalent diameters, and they were higher at high load. The concentration of the particulate matter (PM) was lower but was larger in size when the NTP charger was activated due to coagulation principally owing to WCO’s number and surface area. The total particle masses were lower for WCO at the two load conditions tested. During NTP charger activation, the mass mean diameters were increased by maximum values of 24.0% for D100 and 5.5% for WCO. The PM removal efficiencies were maximized by 10.8% for D100 and 16.7% for WCO when the NTP charger was in use, and the WCO exhaust was dominantly seen to simultaneously reduce NO x and PM emissions.

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Oxidation behaviours of particulate matter emitted by a diesel engine equipped with a NTP device

Gao

Xing

et al. 2017

Applied Thermal Engineering

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Characterization of Particulate from Biodiesel-Blended Engine Equipped with Exhaust Nonthermal Plasma Charger Using Thermo-Gravimetric Analysis

Cited by 4 publications

References 16 publications

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Effects of Nonthermal Plasma on Microstructure and Oxidation Characteristics of Particulate Matter

Insight into Nanoparticle-Number-Derived Characteristics of Precharged Biodiesel Exhaust Gas in Nonthermal Plasma State

Oxidation behaviours of particulate matter emitted by a diesel engine equipped with a NTP device

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