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Author: search.filters.author.Charoenphonphanich, ChindaSubject: search.filters.subject.Particulate Matter

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    Item type:Publication,
    Characterization of Biodiesel Particle Emission in Trapping and Regeneration Processes on Cordierite Diesel Particulate Filter
    (2015-11-17)
    Siricholathum, Komkla
    ;
    Karin, Preechar
    ;
    Charoenphonphanich, Chinda
    ;
    Hanamura, Katsunori
    ;
    Chollacoop, Nuwong
    As well-known, the diesel engine has the highest thermal efficiency at the same load as compared with internal combustion engine but its disadvantage is particulate matter (PM) emitted to the atmosphere. The studies of this paper were divided into two parts. The first part studied the quantity of PM from the both diesel and biodiesel fuels at 80% load (2400 rpm) by the trapping process on diesel particulate filter (DPF) used in a partial flow dilution tunnel. The second part studied the regeneration process of PM under the flow rate of oxygen and nitrogen gas of 13.5 L/min with 10%, 15%, and 21% of oxygen gas. The result showed that amount of PM from biodiesel fuel was lower around two times than PM from diesel fuel. The duration in regeneration process of biodiesel's PM was shorter than diesel while increasing of oxygen percentage can reduce regeneration time.
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    Nanostructure investigation of particle emission by using TEM image processing method
    (2013-01-01)
    Karin, Preechar
    ;
    Songsaengchan, Yutthana
    ;
    Laosuwan, Songtam
    ;
    Charoenphonphanich, Chinda
    ;
    Chollacoop, Nuwong
    Particulate matters (PMs) must be removed from the exhaust gas emitted from engines to protect the environment and human health. The problem of particulate emissions from diesel engine can be reduced in many ways, for examples: development of modern engine, fuel additives, diesel particulate filter (DPF) and oxygenated fuel. This paper describes a part of an ongoing research project in PM reduction as emitted from combustion. The main part is study of PM nanostructure by using Transmission Electron Microscopy (TEM). The primary size distributions as well as PM structures were presented by TEM images. The average primary sizes of biodiesel and diesel fuels PMs are approximately 30-40 nm and 50-60 nm, respectively. The average carbon platelet sizes of both PMs are in the range of 0.1-7.0 nm. Moreover, approximately 830 carbon atoms per cubic nanometer of PMs also could be estimated and presented in the present report. The results of this research would be used as basic information for design and develop removing process of PM emitted from engine combustion which using in diesel and biodiesel fuels. © 2013 The Authors.