Dissertations / Theses on the topic 'Pulverized'
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Tinkham, Kevin Michael. "Surface studies of pulverized fuel ash." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278875.
Full textMessig, Danny. "Numerical simulation of pulverized coal combustion." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-228707.
Full textMescher, Ann M. "Flame structures in a pulverized coal combustor /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487862399449444.
Full textKarlsen, Torill Marie. "The erosive characteristics of South African pulverized coals." Master's thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/22642.
Full textMisra, Mahendra Kumar. "Modeling of pulverized-coal flames in plug flow furnaces /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487685204970189.
Full textGallagher, Neal Benjamin. "Alkali metal partitioning in a pulverized coal combustion environment." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/185896.
Full textSeames, Wayne Stewart. "The partitioning of trace elements during pulverized coal combustion." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284196.
Full textOgden, Gregory E. "Pulverized coal combustion: Flame attachment and nitrogen oxide emissions." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/289822.
Full textBool, Lawrence E. III. "The partitioning of iron during the combustion of pulverized coal." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186374.
Full textXia, Yunkai. "Dynamic property evaluation of frother." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1743.
Full textTitle from document title page. Document formatted into pages; contains x, 89 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 62-64).
Ismail, Mostafa Mostafa Ahmed. "Char burn-out and flame stability in a pulverized fuel furnace." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47486.
Full textLoehden, David Otto. "The formation of fouling and slagging deposits in pulverized coal combustion." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/14685.
Full textHelble, Joseph John. "Mechanisms of ash particle formation and growth during pulverized coal combustion." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/14860.
Full textBose, Arun Chand. "Pulverized coal combustion: Fuel nitrogen mechanisms in the rich post-flame." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184635.
Full textWilliams, Anthony Noel. "Assessment, development and validation of nitric oxide formation and destruction mechanisms for pulverized coal fired combustion /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16492.pdf.
Full textScotto, Mark Vincent 1960. "A mechanism for the oxidation and fragmentation of a char particle." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276699.
Full textRech, Rene Lucio. "Desenvolvimento de equipamento para estudos de injeção de carvão pulverizado em alto-fornos siderúrgicos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/185240.
Full textPulverized coal injection (PCI) is a technique used in blast furnaces (BFs) by Brazilian steel industry, following a worldwide trend, to reduce coke consumption by ton of hot metal produced, and therefore reducing the overall cost. Burning of pulverized coal injected into tuyeres of BFs takes place under medium pressure (up to 4 atm), high flame temperatures (around 2 000 °C), very fast heating rates (104–105 °C/s) and very short residence times, less than 40 ms, followed by gasification in presence of CO2. Since there are no standard tests for evaluation of coal combustibility at PCI conditions, lab and bench scale coal injection rigs and pilot plants are usually employed for this purpose. This work shows the development steps of a bench-scale rig, built at the Iron and Steelmaking Laboratory of the School of Engineering - Universidade Federal do Rio Grande do Sul (LASID-UFRGS), from the conceptual design to the pre-operational step, as well as the initial results. This equipment permits to study the combustion characteristics of coals in conditions very close to those occurring in blast furnaces. Initial tests include the combustion evaluation of a Brazilian coal, aiming its potential usage for PCI, in partial substitution of imported coals for this purpose. The rig has a modern design and is highly automated. Its scale and operational concept is fitted for academic studies. It has a vertical configuration, to be operated with injection of a coal sample in a single pulse mode and is capable to be adjusted afterwards to continuous coal injection mode. Some relevant characteristics of the injection rig are: (1) the very fast measurement and acquisition of thermodynamic data of pressure and temperature in several points of the system, allowing the capture of transient phenomena occurring along the combustion process; (2) the possibility of programming and controlling time intervals, pressures and temperatures to perform combustion and pyrolysis tests, employing specially developed routines; and (3) the representative sample collection of solid and gaseous combustion products to be further analyzed. It is also possible to capture images of the combustion by a high-speed camera, allowing correlate the images, acquired during a time interval of one second, with the thermodynamic data collected in intervals of few milliseconds. xviii The good performance of the equipment was shown by the initial results obtained at the pre-operational phase. The experimental data clearly depicted the effect of operational parameters like coal type, injected sample mass, operational pressure and temperature, and oxidizing gas composition.
Chu, L.-M. "The value of pulverized refuse fines for plant growth and land reclamation." Thesis, University of Liverpool, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233803.
Full textSalem, Mahmoud. "Investigation of materials based on pulverized fuel ash and sodium silicate solutions." Thesis, University of Greenwich, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303855.
Full textGraham, Karl Allen. "Submicron ash formation and interaction with sulfur oxides during pulverized coal combustion." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13745.
Full textMackrory, Andrew John. "A Mechanistic Investigation of Nitrogen Evolution in Pulverized Coal Oxy-Fuel Combustion." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2640.pdf.
Full textLokare, Shrinivas Sadashiv. "A mechanistic investigation of ash deposition in pulverized-coal and biomass combustion /." BYU ScholarsArchive, 2008. https://scholarsarchive.byu.edu/etd/1594.
Full textLINAK, WILLIAM PATRICK. "THE EFFECT OF COAL TYPE, RESIDENCE TIME AND COMBUSTION CONFIGURATION ON THE SUBMICRON AEROSOL COMPOSITION AND SIZE DISTRIBUTION FROM PULVERIZED COAL COMBUSTION (STAGED, FLYASH, SPECIES ENRICHMENT)." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188070.
Full textOshinowo, Olanrewaju Malcolm. "Flow modifying screens in turbulent flows, an application to pulverized coal-fired boilers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ27707.pdf.
Full textSchaffel-Mancini, Natalia [Verfasser]. "Ecological evaluation of the pulverized coal combustion in HTAC technology / Natalia Schaffel-Mancini." [Clausthal-Zellerfeld] : [Univ.-Bbibliothek], 2009. http://d-nb.info/997066938/34.
Full textKang, Shin-Gyoo. "Fundamental studies of mineral matter transformation during pulverized coal combustion : residual ash formation." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13746.
Full textDedy, Eka Priyanto. "Efficient Pretreatment Technology and Ash Handling for Co-firing Pulverized Coal with Biomass." Kyoto University, 2018. http://hdl.handle.net/2433/235093.
Full textChan, Kwok-wong, and 陳國煌. "The study of utilization of pulverized fuel ash in road construction in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1993. http://hub.hku.hk/bib/B31232966.
Full textBorgert, Kyle James. "Oxyfuel Carbon Capture for Pulverized Coal: Techno - Economic Model Creations and Evaluation Amongst Alternatives." Research Showcase @ CMU, 2015. http://repository.cmu.edu/dissertations/523.
Full textSmith, Karl M. "The capture of COâ‚‚ from flue gas using adsorbents developed from pulverized fuel ash." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440998.
Full textChan, Kwok-wong. "The study of utilization of pulverized fuel ash in road construction in Hong Kong /." [Hong Kong] : University of Hong Kong, 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1339244X.
Full textShen, Qiqing. "Rapid Pyrolysis of Raw and Pretreated Biomass under Conditions Pertinent to Pulverized Fuel Applications." Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/86933.
Full textBaranski, Jacek. "Physical and numerical modelling of flow pattern and combustion process in pulverized fuel fired boiler." Licentiate thesis, KTH, Materials Science and Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1533.
Full textThis licentiate thesis describes development of modellingtools, experimental physical modelling and numerical modellingto simulate real combustion processes for advanced industrialutility boiler before and after retrofit.
The work presents extended study about formation,destruction and control of pollutants, especially NOx, whichoccur during combustion process.
The main aim of this work is to improve mixing process incombustion chamber. To do this, the optimization of placementand direction of additional air and fuel nozzles, the physicalmodelling technique is used. By using that method, it ispossible to obtain qualitative information about processes,which occur in the real boiler. The numerical simulationsverify the results from physical modelling, because duringmathematical modelling quantitative informations about flow andmixing patterns, temperature field, species concentration areobtained.
Two 3D cases, before and after retrofit, of pulverized fuelfired boiler at 125 MW output thermal power are simulated. Theunstructured mesh technique is also used to discretize theboiler. The number of grid was 427 656 before retrofit and 513362 after retrofit. The comparisons of results of numericalsimulation before and after retrofit are presented. The resultsfrom physical modelling and numerical simulation are alsoshown.
Results present that nozzles of additional air and fuel givea considerably better mixing process, uniform temperature fieldand CO2 mass fraction. The whole combustion chamber worksalmost as a "well stirred reactor", while upper part of boilerworks as a "plug flow reactor".
Differences between from measured of temperatures andpredicted temperatures are not too big, the maximum differenceis about 100 K. It seems, that calculated temperatures showgood agreement with measurement data.
The results illuminate the potential of physical andnumerical modelling methods as promising tools to deal with thecomplicated combustion processes, even for practicalapplication in the industry.
Keywords:air staging, fuel staging, boiler, furnace,computational fluid dynamics, numerical simulation, pollutants,physical modeling, pulverized fuel combustion.
Shen, Yansong Materials Science & Engineering Faculty of Science UNSW. "Mathematical modelling of the flow and combustion of pulverized coal injected in ironmaking blast furnace." Awarded by:University of New South Wales. Materials Science & Engineering, 2008. http://handle.unsw.edu.au/1959.4/41108.
Full textNdibe, Collins [Verfasser]. "Characterization of torrefied fuels for direct co-firing in large pulverized fuel boilers / Collins Ndibe." Düren : Shaker, 2019. http://d-nb.info/1190525763/34.
Full textLooney, John H. "Evaluation of column flotation circuits for fine coal cleaning." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06112009-063033/.
Full textCarpenter, William Cody. "Burner Design for a Pressurized Oxy-Coal Reactor." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7506.
Full textKleinhans, Ulrich Sebastian [Verfasser]. "Fly Ash Formation and Deposition during Pulverized Fuel Combustion: Numerical and Experimental Investigations / Ulrich Sebastian Kleinhans." München : Verlag Dr. Hut, 2017. http://d-nb.info/1135596417/34.
Full textNgai, Yuen-yi Helen, and 魏婉儀. "Soil genesis and vegetation growth in pulverized fuel ash and refuse landfills capped by decomposed granite." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31219780.
Full textCole, Robert Paul. "Ballistic Penetration of a Sandbagged Redoubt Using Silica Sand and Pulverized Rubber of Various Grain Sizes." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3565.
Full textNgai, Yuen-yi Helen. "Soil genesis and vegetation growth in pulverized fuel ash and refuse landfills capped by decomposed granite /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19471166.
Full textMessig, Danny [Verfasser], Christian [Akademischer Betreuer] Hasse, Christian [Gutachter] Hasse, and Michael [Gutachter] Eiermann. "Numerical simulation of pulverized coal combustion / Danny Messig ; Gutachter: Christian Hasse, Michael Eiermann ; Betreuer: Christian Hasse." Freiberg : Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://d-nb.info/122106925X/34.
Full textReeder, Todd A. "Corrosion-related Gas Measurements and Analysis for a Suite of Coals in Staged Pulverized Coal Combustion." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2230.
Full textStimpson, Curtis K. "The Composition and Morphology of Coal Ash Deposits Collected in an Oxy-Fuel, Pulverized Coal Reactor." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3225.
Full textChrist, Dominik Marek [Verfasser]. "The effect of char kinetics on the combustion of pulverized coal under oxyfuel conditions / Dominik Marek Christ." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1058240560/34.
Full textChrist, Dominik [Verfasser]. "The effect of char kinetics on the combustion of pulverized coal under oxyfuel conditions / Dominik Marek Christ." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://nbn-resolving.de/urn:nbn:de:hbz:82-opus-50655.
Full textDraper, Teri Snow. "Application of Two-Color Pyrometry to Characterize the Two-Dimensional Temperature and Emissivity of Pulverized-Coal Oxy-Flames." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3206.
Full textWeidmann, Max [Verfasser], and Günter [Akademischer Betreuer] Scheffknecht. "About the flameless combustion of pulverized coal at the pilot scale : experiment and simulation / Max Weidmann ; Betreuer: Günter Scheffknecht." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/1169132987/34.
Full textvan, Der Meer Willem Arie. "A thermofluid network-based methodology for integrated simulation of heat transfer and combustion in a pulverized coal-fired furnace." Doctoral thesis, Faculty of Engineering and the Built Environment, 2021. http://hdl.handle.net/11427/33045.
Full textCantrell, Corey L. "Performance modeling of a pulverized coal boiler : a dissertation presented to the faculty of the Graduate School, Tennessee Technological University /." Click to access online version, 2007. http://proquest.umi.com/pqdweb?index=78&did=1445047991&SrchMode=1&sid=1&Fmt=6&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1255119231&clientId=28564.
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