Dissertations / Theses on the topic 'Automobiles – Motors – Exhaust system'
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Bell, Arthur. "The effect of fuel formulation on the exhaust emissions of spark ignition engines." Thesis, Link to the online version, 2006. http://hdl.handle.net/10019.1/1335.
Full textToral, del Rio Maria Isabel. "An analysis of the influence of phosphorus poisoning on the exhaust emission after treatement systems of light-duty diesel vehicles." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/697.
Full textWiemeler, Dirk. "Aero acoustic on automotive exhaust systems." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0018.
Full textOn automotive exhaust systems aero acoustic noise is a dominant and critical noise content, which is clearly objectively and subjectively detectable. Robust test procedures are established but the simulation of this noise content has not gained ground in the real life development processes. This thesis shows that the dominating characteristic of the aero acoustic noise of automotive systems is dipole noise. The simulation of these specific noise sources with classical computational areo acoustics is very cumbersome or even just impossible. The aim of the thesis is a review of the scaling law approach for compact source models, enabling the determination of the sound power emission of discret configurations based on empirical data. Application simulations show that the use of these source models is simple and that the accuracy is acceptable within the geometry limits analysed
Van, Vuuren Christiaan Michael. "Modelling of internal combustion engine intake and exhaust processes." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52343.
Full textENGLISH ABSTRACT: This thesis is concerned with unsteady, one-dimensional flow, which closely mimics those found in the manifolds of internal combustion engines. The physical equations describing problems of this nature are presented and some of the important concepts introduced. These equations and concepts were verified by comparison to published results. The Method of Characteristics (MaC) for unsteady one-dimensional flow with friction and heat transfer was used to analyse the gas flow through the inlet and exhaust systems of an engine. The theoretical derivation of unsteady gas dynamic boundary conditions is presented and the integration with the unsteady pipe flow explained. A simulation flow model was developed to analyse the flow by using the Mae. Thisflow model was then incorporated into an engine simulation program, ESA,to simulate internal combustion engines and to predict the performance of a specific engine. A cam-profile model and an in-cylinder thermodynamic model are used to complete the ESAsoftware. Experimental work was done on a modified Nissan Z24/NA20 engine to evaluate the simulation model. The manifolds of the Nissan Z24/NA20 were modified to isolate one of the cylinders for a proper single cylinder model. More experimental work was done on a Volkswagen 1.6£ 8-valve and a 1.6£ 20-valve engine to obtain performance data on two inlet manifolds developed using the ESAsoftware. Performance data and pressure traces in the inlet manifold of the Nissan Z24/NA20 were recorded for comparison with the ESA software. Good correspondence was found between tested and modelled data and the differences varied between ±5% on engine performance data and pressure wave frequency predictions, and ± 10% on pressure pulse amplitudes.
AFRIKAANSE OPSOMMING: Hierdie tesis handeloor bestendige, eendimensionele vloei, wat die gasvloei in spruitstukke van binnebrandenjins naboots. Die nodige vergelykings wat hierdie tipe probleme beskryf asook van die belangrikste konsepte, word bespreek. Hierdie vergelykings en konsepte is met behulp van gepubliseerde data geverifieer. Die Metode van Karakteristieke (MVK) vir bestendige, eendimensionle vloei met wrywing en warmte oordrag, is gebruik om die gasvloei deur inlaat en uitlaat sisteme van 'n enjin te analiseer. Die teoretiese afleiding van bestendige gasdinamiese randvoorwaardes asook hul integrasie met die bestendige pypvloei, word verduidelik. 'n Simulasie vloeimodel is ontwikkelom die vloei met behulp van die metode van karakteristieke te analiseer. Hierdie vloeimodel is deel van 'n omvattende enjinsimulasie program, ESA. Dit word gebruik om binnebrandenjins te simuleer en enjinwerkverrigting te voorspel. 'n Nokprofielmodel en 'n termodinamiese ontbrandingsmodel word gebruik om die enjinsimulasie program af te rond. Eksperimentele toetse op 'n gemodifiseerde Nissan Z24/NA20 enjin is gebruik om die simulasie model te evalueer. Die spruitstukke van die Nissan Z24/NA20 is aangepas om een van die silinders te isoleer om so 'n geskikte enkelsilindermodel te skep. Verdere eksperimentele toetse is gedoen op Volkswagen 1.6£8- klep en 1.6£ 20-klep enjins. Werkverrigtingsdata is verkry op twee nuwe inlaatspruitstukke wat met behulp van die ESAsagteware ontwerp is. Werkverrigtingsdata en drukverdelingsdata in die inlaatspruitstuk van die Nissan Z24/NA20is aangeteken om te vergelyk met die resultate van die ESAsagteware. Goeie ooreenstemming is verkry tussen toets- en gemoduleerde data. Die verskille varieer tussen ±5% op enjin werkverrigtingsdata en drukpulsfrekwensie voorspellings, en ± 10%op drukpuls-amplitudes.
Rongchai, Kanchit. "The High Temperature Condensation Particle Counter (HT-CPC) : a new instrument for a measurement of solid particulate matter." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708259.
Full textAstanei, Dragoş-George. "Improving the performances of the combustion engines by improving the ignition system." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2073/document.
Full textFaced with the current and future more and more drastic standards for pollutant emissions, the car manufacturers are permanently trying to improve the efficiency of spark ignition engines. One of the most effective applicable solutions for reducing the quantity of pollutant emissions (HC, CO, NOx) from the exhaust gases and also to reduce the fuel consumption is to operate with very lean mixture (equivalent ratio lower than 0.6). However, this operation concept is limited by the actual ignition systems that cannot assure an air/fuel mixture ignition in good conditions, in order to assure a complete, fast and repeatable combustion. The subject of this thesis consists into developing of a new ignition system based on a double spark plug, which can produce two quasi-simultaneous spark discharges with cumulated length few times higher than the sparks produced by a conventional spark plug. For ignition system validation, three different types of analysis have been considered: the analysis of the discharges electrical parameters, the plasma diagnosis using optical emission spectroscopy methods and the tests of the ignition system on two internal combustion engines with the exhaust gases analysis and engine performances determination. The tests revealed that the utilization of the double spark ignition system can assure a better stability in engine operation (especially in difficult ignition conditions such using very lean mixtures), increased engine performances for the same amount of consumed fuel and it can provide a diminution of the unburned hydrocarbons and carbon monoxide quantities from the exhaust gases, but with an increased quantity of nitrogen oxides, compared with a conventional ignition system
Bachman, William Hendricks. "Towards a GIS-based modal model of automobile exhaust emissions." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/21762.
Full textDohanich, Francis Albert. "On-Road Remote Sensing of Motor Vehicle Emissions: Associations between Exhaust Pollutant Levels and Vehicle Parameters for Arizona, California, Colorado, Illinois, Texas, and Utah." Thesis, University of North Texas, 2003. https://digital.library.unt.edu/ark:/67531/metadc5524/.
Full textLui, Wing-man, and 呂穎雯. "A study on the effectiveness of air pollution control policy on motor vehicles in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45013147.
Full textŠevčík, Miroslav. "Výfukové potrubí pro motor BMW." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-255792.
Full textLouw, Nicolaas Hendrik. "Real time full circuit driving simulation system." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50077.
Full textENGLISH ABSTRACT: The requirements regarding the quality of engines and vehicles have increased constantly, requiring more and more sophisticated engine testing. At the same time, there is a strong demand to reduce lead time and cost of development. For many years steady state engine testing was the norm using standard principles of power absorption. Since the mid 1980's increasing importance has been attached to the optimisation of transient engine characteristics and the simulation of dynamic real world driving situations on engine test stands. This has led to the use of bi-directional DC or AC regenerative dynamometers a practice now known as dynamic engine testing. Interfacing a computer with vehicle simulation software to an engine on a dynamic test stand and using "hardware in the loop" techniques, enables the simulation of real world driving situations in a test facility. In dynamic engine testing a distinction can be made between simulation testing and transient testing. In simulation testing the set point values are predetermined whereas in transient testing a model generates set point values in real time. Speeds and loads are calculated in real time on the basis of real time measurements. The model can be in the form of a human or driver simulation. This project involved the application of dynamic engine testing to simulating a racing application. It is termed Real Time Full Circuit Driving Simulation System due to the simulation of a race car circling a race track, controlled by a driver model and running the engine on a dynamic test bench in real time using "hardware in the loop" techniques. By measuring the simulated lap times for a certain engine configuration on the test bench in real time, it is possible to select the optimal engine set-up for every circuit. The real time nature of the simulation subjects the engine on the test bench to similar load and speed conditions as experienced by its racing counterpart in the race car yielding relevant results. The racing simulation was achieved by finding a suitable dynamic vehicle model and a three dimensional race track model, developing a control strategy, programming the software and testing the complete system on a dynamic test stand. In order to verify the simulation results it was necessary to conduct actual track testing on a representative vehicle. A professional racing driver completed three flying laps of the Killarney racing circuit in a vehicle fitted with various sensors including three axis orientation and acceleration sensors, a GPS and an engine control unit emulator for capturing engine data. This included lap time, vehicle accelerations, engine speed and manifold pressure, an indicator of driver input. The results obtained from the real time circuit simulation were compared to actual track data and the results showed good correlation. By changing the physical engine configuration in the hardware and gear ratios in the software, comparative capabilities of the system were evaluated. Again satisfactory results were obtained with the system clearly showing which configuration was best suited for a certain race track. This satisfies the modem trend of minimizing costs and development time and proved the value of the system as a suitable engineering tool for racing engine and drive train optimisation. The Real Time Full Circuit Driving Simulation System opened the door to further development in other areas of simulation. One such area is the driveability of a vehicle. By expanding the model it would be possible to evaluate previously subjective characteristics of a vehicle in a more objective manner.
AFRIKAANSE OPSOMMING: Die vereistes om die kwaliteit van enjins en voertuie te verhoog, word daagliks hoër. Meer gesofistikeerde enjintoetse word daarom vereis. Terselfdertyd is dit 'n groot uitdaging om die tydsduur en koste van ontwikkeling so laag as moontlik te hou. Gestadigde toestand enjintoetse, wat op die prinsiep van krag absorpsie werk, was vir baie jare die norm. Vanaf die middel tagtigerjare het die optimering van dinamiese enjinkarakteristieke en die simulasie van werklike bestuursituasies op enjintoetsbanke van al hoe groter belang geword. Die gevolg was die gebruik van twee rigting wisselof gelykstroomdinamometers en staan vandag bekend as dinamiese enjintoetsing. Deur 'n rekenaar met simulasiesagteware aan 'n enjin op 'n dinamiese toetsbank te koppel, word die moontlikheid geskep om enige werklike bestuursituasies van 'n voertuig te simuleer in die enjintoetsfasiliteit. Dinamiese enjintoetse kan opgedeel word in simulasietoetse en oorgangstoestandtoetse. By laasgenoemde genereer 'n "bestuurdersmodel" die beheerwaardes intyds deur te kyk na intydse metings terwyl by simulasietoetse die beheerwaardes vooraf bepaal word. Die "bestuurder" kan in die vorm van 'n persoon of rekenaarsimulasie wees. Die projek behels die toepassing van dinamiese enjintoetse vir renbaansimulasie en staan bekend as'n Intydse, Volledige Renbaansisteem weens die simulasie van 'n renmotor om 'n renbaan, onder die beheer van 'n bestuurdersmodel. Dit geskied terwyl die enjin intyds op 'n dinamiese enjintoetsbank loop en gekoppel is aan die simulasie. Deur die intydse, gesimuleerde rondtetye te analiseer, word die moontlikheid geskep om die enjinkonfigurasie te optimeer vir 'n sekere renbaan. Dit is bereik deur die keuse van 'n gepaste dinamiese voertuigmodel, 'n driedimensionele renbaanmodel, ontwikkeling van 'n beheermodel, programmering van die sagteware en integrasie van die dinamiese enjintoetsstelsel. Die simulasieresultate verkry is gestaaf deur werklike renbaantoetse. 'n Professionele renjaer het drie rondtes van die Killarney renbaan voltooi in 'n verteenwoordigende voertuig wat toegerus was met verskeie sensors o.a. drie as versnellings- en orientasiesensors, GPS en 'n enjinbeheereenheidemmuleerder vir die verkryging en stoor van enjindata. Die sensors het data versamel wat insluit rondtetyd, voertuigversnellings, enjinspoed en inlaatspruitstukdruk. Die korrelasie tussen die simulasie waardes en werklik gemete data was van hoë gehalte. Deur die fisiese enjinkonfigurasie te verander in die hardeware en ratverhoudings in die sagteware, is die vergelykbare kapasiteite van die renbaansimulasie geevalueer. Die resultate was weer bevredigend en die simulasie was in staat om die beste enjinkonfigurasie vir die renbaan uit te wys. Dit bevredig die moderne neiging om koste en ontwikkelingstyd so laag as moontlik te hou. Sodoende is bewys dat die stelsel waarde in die ingenieurswêreld het. 'n Intydse, Volledige Renbaansisteem die skep die geleentheid vir verdere ontwikkeling op verskeie terreine van simulasie. Een so 'n veld is die bestuurbaarheid van 'n voertuig. Deur die model verder te ontwikkel word die moontlikheid geskep om voorheen subjektiewe karakteristieke van 'n voertuig meer wetenskaplik te analiseer.
Sturgess, M. "Selective catalytic reduction for light-duty diesel engines using ammonia gas." Thesis, Coventry University, 2012. http://curve.coventry.ac.uk/open/items/aa3c644b-15fd-429a-b457-a831d44c5dce/1.
Full textKorremla, Shiva K. Sainoju. "Experimental investigation of steady state heat transfer phenomenon in Pontiac G6 vehicle exhaust system." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Full textParmar, Hiten. "The development of a programmable engine management system for a formula student race vehicle." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1010957.
Full textOtto, Willem Liebrecht. "Investigating the introduction of e-mobility in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95956.
Full textYeung, Kit-choi James, and 楊傑材. "A study of the air pollution situation and its effects in urban Hong Kong caused by land-based transport." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31952501.
Full text魏海然 and Hoi-yin Ngai. "The effect of private car policies on air quality." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31255267.
Full textHyland, Jackie. "The health and socioeconomic impact of traffic-related air pollution in Scotland." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/11734.
Full textKall, David. "Effect of high occupancy toll (HOT) lanes on mass vehicle emissions." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29692.
Full textCommittee Chair: Guensler, Randall; Committee Member: Rodgers, Michael; Committee Member: Ross, Catherine. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Boswell, Colin R. "Atlanta automotive particulate matter exposure and evaluation." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34679.
Full textWu, Wai-yu, and 吳惠如. "The vehicle emissions control policy in Hong Kong: a study of agenda setting." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31966366.
Full textNg, Bing Benson, and 吳賓. "Cleaner alternative fuels for vehicles: a cleaner future for Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31255036.
Full textUdell, Thomas Gregory. "Reducing emissions of older vehicles through fuel system conversion to natural gas." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19896.
Full textYoon, Seungju. "A new heavy-duty vehicle visual classification and activity estimation method for regional mobile source emissions modeling." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-07122005-204032/.
Full textMichael O. Rodgers, Committee Chair ; Randall L. Guensler, Committee Member ; Michael D. Meyer, Committee Member ; Michael P. Hunter, Committee Member ; Jennifer H. Ogle, Committee Member.
Shafi, Ghufran. "Development of roadway link screening criteria for microscale carbon monoxide and particulate matter conformity analyses through application of classification tree model." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/28222.
Full textCommittee Chair: Guensler, Randall; Committee Member: Rodgers, Michael; Committee Member: Russell, Armistead.
North, Thomas B. "Liquid Nitrogen Propulsion Systems for Automotive Applications: Calculation of Mechanical Efficiency of a Dual, Double-acting Piston Propulsion System." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc6070/.
Full textBongiovanni, Alessandro. "Etude des effets promoteurs dans les réactions catalytiques de dépollution par l'argent et l'or." Doctoral thesis, Universite Libre de Bruxelles, 2007. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210682.
Full textLors de ce travail nous nous sommes intéressés à ces sujets. Tout d'abord, nous avons étudié l'effet du SO2 sur la réduction catalytique sélective des NOx sur des catalyseurs Ag/Al2O3 dans les conditions des moteurs Diesel. Le dioxyde de soufre est reconnu comme un poison de catalyseurs. Dans cette thèse, nous avons étudié un effet promoteur du SO2. Les catalyseurs qui ont fait l’objet de ce travail ont été préparés au laboratoire. Nous avons fait varier différents paramètres tels que la température, la nature de l'hydrocarbure ou encore la concentration de SO2 afin de mieux cerner cet effet promoteur. Nous avons mis en évidence que cet effet promoteur est observable lorsque le propène est utilisé comme réducteur, alors qu'avec le propane il s'agit plutôt d'un effet négatif du SO2.
Le deuxième sujet étudié dans ce travail est l'oxydation du CO sur des catalyseurs Au/TiO2, soit préparés au laboratoire, soit fournis comme référence du World Gold Council. Ces catalyseurs offrent l’avantage de pouvoir oxyder le CO à basse température, ce qui pourrait résoudre le problème de la pollution liée au démarrage à froid des automobiles. Ces catalyseurs subissent une désactivation que nous avons analysée par spectroscopie infrarouge (DRIFT et FTIR). Une étude XPS-SIMS de catalyseurs ayant des activités différentes nous a permis de mettre en évidence des concentrations de sodium différentes sur ces catalyseurs. Dans cette thèse, nous nous sommes plus particulièrement intéressés à l'influence du potassium. Pour mettre en évidence l'influence de celui-ci sur l'activité catalytique, des catalyseurs Au/TiO2 furent préparés en absence stricte d'alcalins et d'alcalino-terreux pour ajouter par après, de manière contrôlée, les quantités souhaitées de potassium. La composition des catalyseurs préparés fut contrôlée par XPS-SIMS. Il s'avère que la présence de potassium permet d'accroître l'activité catalytique, néanmoins il semble y avoir une concentration optimale de potassium qui varie en fonction de la composition/morphologie du catalyseur Au/TiO2 au départ, c'est-à-dire sans modification par ajout de potassium.
Doctorat en Sciences
info:eu-repo/semantics/nonPublished
Sun, Wai-choi Sunny, and 辛偉才. "A feasibility study of switching from the diesel to petrol light road transport to improve the urban air quality in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31253271.
Full textCambridge, Shevonn Nathaniel. "The effect of compression ratio on emissions from an alcohol-fueled engine." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-09122009-040220/.
Full textLee, Chi-on, and 李子安. "Sustainable development and integrated transport planning: "Is Hong Kong moving towards a more sustainable transportsystem for new development areas?"." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31259959.
Full textWright, Monica Elizabeth. "An Investigation of Urban Mobile Source Aerosol Using Optical Properties Measured by CRDT/N: Diesel Particulate Matter and the Impact of Biodiesel." PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/673.
Full textZia, Asim. "Cooperative and non-cooperative decision behaviors in response to the inspection and maintenance program in the Atlanta Airshed, 1997-2001." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-07112004-211918/unrestricted/zia%5Fasim%5F200407%5Fphd.pdf.
Full textNorton, Bryan, Committee Chair ; Rodgers, Michael, Committee Member ; Bozeman, Barry, Committee Member ; DeHart-Davis, Leisha, Committee Member ; Noonan, Douglas, Committee Member. Includes bibliographical references.
Choi, Ya-yin, and 蔡雅然. "A review of the control of motor vehicle fuel specifications and its effects on air quality." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31255450.
Full textPachon, Quinche Jorge Eduardo. "Development and assessment of environmental indicators for mobile source impacts on emissions, air quality, exposure and health outcomes." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42719.
Full textLee, Tsz-kwan, and 李芷筠. "An analysis on the policy making process of HKSAR Government proposed statutory ban on idling vehicles with running engine policy." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46781389.
Full textFINCK, FRANCOISE. "Etude d'un nouveau systeme de depollution des gaz d'echappement automobile : modelisation par les techniques de surface." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13068.
Full textClifford, Johanna Marie. "A 2009 mobile source emissions inventory of the University of Central Florida." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4873.
Full textID: 030423247; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.S.Env.E.)--University of Central Florida, 2011.; Includes bibliographical references (p. 117-120).
M.S.Env.E.
Masters
Civil, Environmental and Construction Engineering
Engineering and Computer Science
Environmental Engineering
Supnithadnaporn, Anupit. "Three essays in program evaluation the case of Atlanta inspection and maintenance program /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29770.
Full textCommittee Chair: Noonan, Douglas; Committee Member: Castillo, Marco; Committee Member: Chang, Michael; Committee Member: Cozzens, Susan; Committee Member: Rodgers, Michael. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Wong, Chi-yui William, and 黃智銳. "A study of operators' views on LPG minibuses." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29537666.
Full textHuang, He. "Case-based expert system using wavelet packet transform and kernel-based feature manipulation for engine spark ignition diagnosis." Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2148260.
Full textSamoylov, Alexander V. "Improvement of the efficiency of vehicle inspection and maintenance programs through incorporation of vehicle remote sensing data and vehicle characteristics." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50410.
Full textDreyer, A. J. "Aspects of manufacturing of stainless steel bellows." Thesis, 2012. http://hdl.handle.net/10210/6183.
Full textThe purpose of this thesis was to gather experimental data of a stainless steel sleeve being formed into a convoluted tube. This convoluted tube, made from stainless steel ASTM 240 type 321 and with a wall thickness of 0,4mm, is the main part of an automotive exhaust bellow. The automotive exhaust bellow fits into a motor vehicle exhaust system. One of the functions of this bellow is to compensate for engine movement. The bellow is also used to damp the engine vibration to the vehicle chassis. Typical failures that occur during the production of a convoluted tube are identified. The data gathered are listed and the forming process, typical conditions and its effects discussed. The actual data and graphs are presented in the annexures at the end of this report. Plasticity theory for shells and cylinders is summarized in Annexure A and the solution of a related problem discussed. Experimental data were used to verify the result of a finite element model. The calculated values of the model compare well with the values of the experimental data. The model must still be developed further and the experimental data can be used to verify this developed model. Possible aspects, related to the forming and life-cycle prediction of an automotive exhaust bellow, that still need to be studied are identified and presented at the end of this report.
Huang, Yiquan. "The effects of fuel volatility, structure, speed and load on HC emissions from piston wetting in direct injection spark ignition engines." 2001. http://hdl.handle.net/2152/10550.
Full textLeung, Emi. "Mechanistic Investigation of Novel Niobium-Based Materials as Enhanced Oxygen Storage Components and Innovative CO Oxidation Catalyst Support for Environmental Emission Control Systems." Thesis, 2016. https://doi.org/10.7916/D8N016FM.
Full textQuigley, Christopher John 1962. "Refueling and evaporative emissions of volatile organic compounds from gasoline powered motor vehicles." Thesis, 2007. http://hdl.handle.net/2152/3642.
Full textWarey, Alok Arun. "Development of an electronic sensor for engine exhaust particulate measurements." Thesis, 2005. http://hdl.handle.net/2152/2184.
Full text"Impacts of road traffic on the environment of Hong Kong." 1998. http://library.cuhk.edu.hk/record=b6073085.
Full textThesis (Ph.D.)--Chinese University of Hong Kong, 1998.
Includes bibliographical references (p. 234-240).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Mode of access: World Wide Web.
Keillor, Martin E. "Principal component analysis of low resolution energy spectra to identify gamma sources in moving vehicle traffic." Thesis, 2000. http://hdl.handle.net/1957/32730.
Full textGraduation date: 2001
Mazumder, Diya Basu 1974. "Essays in vehicle emission policies." Thesis, 2007. http://hdl.handle.net/2152/3154.
Full texttext
Laubscher, Franciscus Xavierus. "A model to predict the effect of the radiator core and ambient conditions on the performance of the cooling system of a rally car." Diss., 2006. http://hdl.handle.net/2263/23981.
Full textDissertation (MEng(Mechanical))--University of Pretoria, 2007.
Mechanical and Aeronautical Engineering
unrestricted