Dissertations / Theses on the topic 'Particulate emissions'
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Downard, Jared Matthew. "Particulate emissions of tire combustion." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4615.
Full textPrice, Philip Daniel. "Direct injection gasoline engine particulate emissions." Thesis, University of Oxford, 2009. http://ora.ox.ac.uk/objects/uuid:35c0d6bf-bde3-4ef0-a87e-4af89a94b16f.
Full textMartin, Rebecca. "Particulate Emissions in Selected Maine Saw Mills." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/MartinR2008.pdf.
Full textMegaritis, Athanasios. "Particulate emissions in direct-injection diesel engines." Thesis, Imperial College London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.344010.
Full textAbdullahi, Lami Karimatu. "Characterisation of particulate matter emissions from cooking." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7397/.
Full textLeach, Felix Charles Penrice. "Particulate emissions from gasoline direct injection engines." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:ea9c349e-5ade-4878-b758-c9a050c8f069.
Full textTornehed, Petter. "Particulate Emissions Associated with Diesel Engine Oil Consumption." Doctoral thesis, KTH, Maskinelement, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-25880.
Full textQC 20101103
Boman, Christoffer. "Particulate and gaseous emissions from residential biomass combustion." Doctoral thesis, Umeå : Univ, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-501.
Full textGuo, Li. "Measurement and control of particulate emissions from cattle feedlots in Kansas." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/8549.
Full textDepartment of Biological & Agricultural Engineering
Ronaldo G. Maghirang
Emissions of particulate matter (PM) are an increasing concern for large open beef cattle feedlots. Research is needed to develop science-based information on PM emissions and abatement measures for mitigating those emissions. This research was conducted to (1) measure PM concentrations emitted from large cattle feedlots, (2) compare different samplers for measuring concentrations of PM with equivalent aerodynamic diameter of 10 µm or less (PM10), (3) evaluate the relative effectiveness of pen surface treatments in reducing PM10 emissions, and (4) predict PM control efficiency of vegetative barriers. Concentrations of PM with equivalent aerodynamic diameter of 2.5 µm or less (PM2.5), PM10, and total suspended particulates (TSP) upwind and downwind of two large cattle feedlots (KS1, KS2) in Kansas were measured with gravimetric samplers. The downwind and net concentrations generally decreased with increasing water content (WC) of the pen surface; for effective control of PM emissions from feedlots, it appears that pen surface WC should be at least 20% (wet basis). Three types of samplers for measuring PM10 concentrations in feedlots KS1 and KS2 were compared: Tapered Element Oscillating Microbalance™ (TEOM), high-volume (HV), and low-volume (LV) PM10 samplers. Measured PM10 concentration was generally largest with the TEOM PM10 sampler and smallest with the LV PM10 sampler. A laboratory apparatus was developed for measuring the PM10 emission potential of pen surfaces as affected by surface treatments. The apparatus was equipped with a simulated pen surface, mock cattle hooves that moved horizontally across the pen surface, and PM10 samplers that collected emitted PM10. Of the surface treatments evaluated, application of water (6.4 mm) and hay (723 g/m2) exhibited the greatest percentage reduction in PM10 emission potential (69% and 77%, respectively) compared with the untreated manure layer. Computational fluid dynamics (CFD) was applied to predict airflow and particle collection by a row of trees (2.2 m high × 1.6 m wide). Predicted particle collection efficiencies generally agreed with published data and ranged from less than 1% for 0.875-µm particles to approximately 32% for 15-µm particles.
Chen, Longfei. "Measurement of particulate emissions from gasoline direct injection engines." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:19e8dc75-9873-4b76-831d-3878fd048169.
Full textCapper, Anthony John. "The control of particulate emissions during production of coke." Thesis, University of South Wales, 1986. https://pure.southwales.ac.uk/en/studentthesis/the-control-of-participate-emissions-during-production-of-coke(128b8ced-637d-4464-a509-af04f67665a5).html.
Full textGander, Nathan. "Assessing Particulate and Chemical Emissions from Additive Manufacturing Processes." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1595848332301779.
Full textBonifacio, Henry F. "Particulate matter emissions from commercial beef cattle feedlots in Kansas." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2325.
Full textHamm, Lee Bradford. "Engineering analysis of fugitive particulate matter emissions from cattle feedyards." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3240.
Full textHenshaw, Geoffrey Stephen. "Surface analysis of particulate emissions before and after atmospheric aging." Thesis, University of Auckland, 1992. http://hdl.handle.net/2292/2453.
Full textPritchard, Joseph James. "The effects of secondary air injection on particulate matter emissions." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/87963.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (pages 69-71).
An experimental study was performed to investigate the effects of secondary air injection (SAI) on particulate matter (PM) emissions. SAI was developed to reduce hydrocarbon (HC) emissions and has been shown to be effective as a strategy to reduce HC emissions at cold-start. In general, cold-start emissions have become an increasingly important problem due to new, more stringent vehicle emissions regulations. Direct-injection, spark-ignition (DISI) engines, which emit high levels of PM, are growing in popularity because of their fuel efficiency improvements. Meeting PM emissions becomes a more difficult task due to more stringent standards and the greater adoption of DISI engines. This study seeks to investigate the potential use of SAI to reduce PM emissions in the exhaust system. Engine based experiments were conducted using a 2.0 L, turbocharged, DISI General Motors LNF engine. The engine was outfitted with a secondary air injection system and several thermocouples to measure exhaust stream temperature. A TSI Model 3934 Scanning Mobility Particle Sizer (SMPS) was used to measure particle emissions at various engine operating conditions and secondary air rates. PM reductions were observed for the engine conditions and SAI flow rates that were tested. The maximum particle number reduction achieved was 80%. Particle number and particle volume reduction were observed to correlate well with exhaust enthalpy release.
by Joseph James Pritchard.
S.M.
Zhao, Huayong. "Optical diagnostics and particulate emissions analysis of hydrogen-hydrocarbon combustion." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:e835a67a-88d6-44aa-95ee-485d032b82b2.
Full textCambra, López María. "Control of particulate matter emissions from poultry and pig houses." Doctoral thesis, Universitat Politècnica de València, 2010. http://hdl.handle.net/10251/8501.
Full textCambra López, M. (2010). Control of particulate matter emissions from poultry and pig houses [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/8501
Palancia
Gerazounis, Stylianos. "Design and development of a particulate emission monitor." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326226.
Full textGoodrich, Lee Barry. "A PM10 emission factor for free stall dairies." Texas A&M University, 2002. http://hdl.handle.net/1969.1/3858.
Full textXu, Fan. "Experimental research on particulate matter emissions from gasoline direct injection engines." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:308fc929-a747-4793-8d90-1d5bf81fae5d.
Full textLagally, Christie D. "A morphological survey of particulate matter emissions from spark-ignited engines." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/33754.
Full textRubino, Lauretta. "After-treatment of particulate emissions from simulated and gasoline engine exhausts." Thesis, Imperial College London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.406858.
Full textMicallef, Alfred. "Concentrations and vertical profiles of airborne particulate matter." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285453.
Full textJohansson, Petter. "Oil-related Particle Emissions from Diesel Engines." Licentiate thesis, Stockholm : Maskinkonstruktion, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9287.
Full textAkbar, Sameer. "Particulate air pollution and respiratory morbidity in Delhi, India." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268012.
Full textSingh, Rakesh Bhushan. "Modelling and measurement of particulate pollution from motor vehicles." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389355.
Full textKarani, George N. "The chemical nature of particulate air pollution in Leeds." Thesis, University of Leeds, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303467.
Full textWin, Kaung Myat. "Emissions from realistic operation of residential wood pellets heating systems." Doctoral thesis, Mälardalens högskola, Framtidens energi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-29582.
Full textTippayawong, Nakorn. "Simulation of particulate emissions from gasoline engines and their interaction with autocatalysts." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394468.
Full textGeorge, Sam. "Investigation of lubricant oil consumption and its contribution to particulate matter emissions." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=6004.
Full textTitle from document title page. Document formatted into pages; contains xii, 152 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 111-119).
Hardin, John Wesley. "Quantification of soluble organic fraction measurement variation in diesel particulate matter emissions." Morgantown, W. Va. : [West Virginia University Libraries], 2008. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=6007.
Full textTitle from document title page. Document formatted into pages; contains ix, 135 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 52-53).
Rojas, Néstor Y. "Diesel exhaust system influences on transient particulate emissions and particle size distribution." Thesis, University of Leeds, 2001. http://etheses.whiterose.ac.uk/2292/.
Full textWhitcombe, Joshua Matthew, and n/a. "Study of Catalyst Particle Emissions From a Fluidized Catalytic Cracker Unit." Griffith University. School of Environmental Engineering, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031003.152200.
Full textVawda, Yasmin. "Factors influencing the dry deposition of atmospheric trace particulate species." Thesis, University of Essex, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280467.
Full textMANUZON, RODERICK BEROIN. "Electrostatic Precipitation Technologies for the Mitigation of Particulate Matter Emissions from Poultry Facilities." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345562603.
Full textFaghani, Ehsan. "Effect of injection strategies on particulate matter emissions from HPDI natural-gas engine." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55606.
Full textApplied Science, Faculty of
Mechanical Engineering, Department of
Graduate
Heinrich, Victoria. "Assessment of techniques to detect particulate emissions from the Olympic Dam Copper smelter /." Title page, abstract and contents only, 2000. http://web4.library.adelaide.edu.au/theses/09SB/09sbh469.pdf.
Full textZhang, Yihao S. M. Massachusetts Institute of Technology. "Assessing the effects of ethanol addition on particulate matter emissions in GDI engines." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118678.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 75-78).
Previous research on the effects of ethanol addition on particulate matter (PM) emissions in GDI engines show diverse results. In this thesis, an overview on three major aspects, PM formation, effects of engine operating conditions, and ethanol effects, unveils the large number of factors that can simultaneously affect PM emissions from gasoline-ethanol blends in GDI engines, partially explaining the reasons for the diverse results from previous research. A further experimental work was conducted to assess three potential ethanol effects, displacement effect, evaporative cooling effect, and oxygen content effect. The displacement effect is based on PM Index (PMI) in the literature. Ethanol has very low PMI and thus very low propensity to form PM. Therefore, the addition of ethanol replaces the high-PMI components in the gasoline, lowering PM emissions. Although the PMI value incorporates species reactivity and volatility, it does not take latent heat of vaporization (HOV) into account. The high HOV of ethanol suppresses the fuel evaporation and potentially causes more liquid fuel films, which serve as sources for PM emissions. This evaporative cooling effect was assessed along with the oxygen content effect, a widely used effect in the literature to explain why ethanol lowers PM emissions. Through the method of control variables, the displacement effect and oxygen content effect were separated out and could be assessed individually. The existence of the displacement effect was confirmed. It was also found that the oxygen content effect was negligible, while the evaporative cooling effect changed PN emission significantly. The extent of the evaporative cooling effect depended on operating conditions, such as fuel injection timing, engine coolant temperature, and load.
by Yihao Zhang.
S.M.
Predicala, Bernardo Z. "Characterization and modeling of concentrations and emissions of particulate matter in swine buildings /." Search for this dissertation online, 2003. http://wwwlib.umi.com/cr/ksu/main.
Full textParker, Gavin James. "Analysis of metals in airborne particulate matter in eastern Iowa." Thesis, University of Iowa, 2019. https://ir.uiowa.edu/etd/7010.
Full textBonifacio, Henry F. "Estimating particulate emission rates from large beef cattle feedlots." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/15530.
Full textDepartment of Biological and Agricultural Engineering
Ronaldo G. Maghirang
Emission of particulate matter (PM) and various gases from open-lot beef cattle feedlots is becoming a concern because of the adverse effects on human health and the environment; however, scientific information on feedlot emissions is limited. This research was conducted to estimate emission rates of PM[subscript]10 from large cattle feedlots. Specific objectives were to: (1) determine feedlot PM[subscript]10 emission rates by reverse dispersion modeling using AERMOD; (2) compare AERMOD and WindTrax in terms of their predicted concentrations and back-calculated PM[subscript]10 emission rates; (3) examine the sensitivity of both AERMOD and WindTrax to changes in meteorological parameters, source location, and receptor location; (4) determine feedlot PM[subscript]10 emission rates using the flux-gradient technique; and (5) compare AERMOD and computational fluid dynamics (CFD) in simulating particulate dispersion from an area source. PM[subscript]10 emission rates from two cattle feedlots in Kansas were determined by reverse dispersion modeling with AERMOD using PM[subscript]10 concentration and meteorological measurements over a 2-yr period. PM[subscript]10 emission rates for these feedlots varied seasonally, with overall medians of 1.60 and 1.10 g /m[superscript]2 -day. Warm and prolonged dry periods had significantly higher PM emissions compared to cold periods. Results also showed that the PM[subscript]10 emissions had a diurnal trend; highest PM[subscript]10 emission rates were observed during the afternoon and early evening periods. Using particulate concentration and meteorological measurements from a third cattle feedlot, PM[subscript]10 emission rates were back-calculated with AERMOD and WindTrax. Higher PM[subscript]10 emission rates were calculated by AERMOD, but their resulting PM[subscript]10 emission rates were highly linear (R[superscript]2 > 0.88). As such, development of conversion factors between these two models is feasible. AERMOD and WindTrax were also compared based on their sensitivity to changes in meteorological parameters and source locations. In general, AERMOD calculated lower concentrations than WindTrax; however, the two models responded similarly to changes in wind speed, surface roughness, atmospheric stability, and source and receptor locations. The flux-gradient technique also estimated PM[subscript]10 emission rates at the third cattle feedlot. Analyses of PM[subscript]10 emission rates and meteorological parameters indicated that PM[subscript]10 emissions at the feedlot were influenced by friction velocity, sensible heat flux, temperature, and surface roughness. Based on pen surface water content measurements, a water content of at least 20% (wet basis) significantly lowered PM[subscript]10 emissions at the feedlot. The dispersion of particulate from a simulated feedlot pen was predicted using CFD turbulence model ([kappa]-[epsilon] model) and AERMOD. Compared to CFD, AERMOD responded differently to wind speed setting, and was not able to provide detailed vertical concentration profiles such that the vertical concentration gradients at the first few meters from the ground were negligible. This demonstrates some limitations of AERMOD in simulating dispersion for area sources such as cattle feedlots and suggests the need to further evaluate its performance for area source modeling.
Mediavilla-Sahagun, Antonio. "Integrated assessment modelling applied to particulate concentrations and urban air quality management." Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271718.
Full textBoswell, Colin R. "Atlanta automotive particulate matter exposure and evaluation." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34679.
Full textCerit, Ersen Recep. "Investigation Of The Effect Of Oxidation Filters On The Particulate Emissions Of Diesel Engines." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607561/index.pdf.
Full textGalvis, Remolina Boris. "Characterizing the emissions of fine particulate matter in the vicinity of a rail yard." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52927.
Full textKorontzi, Stefania. "Modeling of seasonal trace gas and particulate emissions from vegetation fires in southern africa." College Park, Md. : University of Maryland, 2004. http://hdl.handle.net/1903/1415.
Full textThesis research directed by: Geography. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Bugarski, Aleksandar D. "Characterization of particulate matter and hydrocarbon emissions from in-use heavy-duty diesel engines." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1174.
Full textTitle from document title page. Document formatted into pages; contains xxviii, 254 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 218-232).
Xu, Zhuyun. "Analysis of particulate matter concentration and size distribution in heavy-duty vehicle exhaust emissions." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2012.
Full textTitle from document title page. Document formatted into pages; contains xi, 133 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 129-133).
Keshtkar, Haleh. "Characterization of polycyclic aromatic hydrocarbons (PAH) in particulate and gaseous emissions from agricultural burning /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.
Full text