Academic literature on the topic 'Exhaust aftertreatment system'

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Journal articles on the topic "Exhaust aftertreatment system"

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SINGER, Wolfgang, Wolfgang SCHINDLER, and Manfred LINKE. "Particulate and smoke measurement on Euro 4 engines." Combustion Engines 124, no. 1 (2006): 54–59. http://dx.doi.org/10.19206/ce-117361.

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Future legislation like EURO IV regulation will require massive reduction of particulate emission limits. Besides continuous improvement of the engine combustion process also exhaust aftertreatment systems, like Diesel Particulate Filters (DPF), or Selective Catalytic Reduction (SCR) of Nitrogen Oxides, are under investigation to meet that goal. For the development of the complete powertrain system, which means the engine and the aftertreatment device, with reduced particulate emissions, there is not only demand for high sensitive Smoke and Particulate Measurement, but also for exhaust gas con
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Ren, Lin Lin, Wei Ding, Zhe Zhang, Tao Chen, Ming Xin Bi, and Ying Chao Zhang. "Internal Flow Analysis of SCR-Exhaust Aftertreatment System." Applied Mechanics and Materials 574 (July 2014): 96–102. http://dx.doi.org/10.4028/www.scientific.net/amm.574.96.

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Selective Catalytic Reduction system (SCR) has made great contributions to diesel engine NOx control technology. The gas flow condition in exhaust pipe has a great effect on catalytic reduction reaction of SCR, especially the airflow through carriers. In this paper, CFD technology was used to simulate the internal flow field, and analyze the gas flow uniformity, which would give us reasonable suggestions to optimize the structure of SCR-Exhaust aftertreatment system.
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Vos, Kalen R., Gregory M. Shaver, Mrunal C. Joshi, and James McCarthy. "Implementing variable valve actuation on a diesel engine at high-speed idle operation for improved aftertreatment warm-up." International Journal of Engine Research 21, no. 7 (2019): 1134–46. http://dx.doi.org/10.1177/1468087419880639.

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Aftertreatment thermal management is critical for regulating emissions in modern diesel engines. Elevated engine-out temperatures and mass flows are effective at increasing the temperature of an aftertreatment system to enable efficient emission reduction. In this effort, experiments and analysis demonstrated that increasing the idle speed, while maintaining the same idle load, enables improved aftertreatment “warm-up” performance with engine-out NOx and particulate matter levels no higher than a state-of-the-art thermal calibration at conventional idle operation (800 rpm and 1.3 bar brake mea
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Gosala, Dheeraj B., Aswin K. Ramesh, Cody M. Allen, et al. "Diesel engine aftertreatment warm-up through early exhaust valve opening and internal exhaust gas recirculation during idle operation." International Journal of Engine Research 19, no. 7 (2017): 758–73. http://dx.doi.org/10.1177/1468087417730240.

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A large fraction of diesel engine tailpipe NOx emissions are emitted before the aftertreatment components reach effective operating temperatures. As a result, it is essential to develop technologies to accelerate initial aftertreatment system warm-up. This study investigates the use of early exhaust valve opening (EEVO) and its combination with negative valve overlap to achieve internal exhaust gas recirculation (iEGR), for aftertreatment thermal management, both at steady state loaded idle operation and over a heavy-duty federal test procedure (HD-FTP) drive cycle. The results demonstrate tha
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Nagaraj, Nayak S., N. Kapilan, and Prabhu S. Sadashiva. "Modeling of Urea-Water Solution Injection Spray in SCR System." Applied Mechanics and Materials 232 (November 2012): 583–87. http://dx.doi.org/10.4028/www.scientific.net/amm.232.583.

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To control the emissions from the diesel engines of modern automobiles, it requires the development of adequate and advanced exhaust gas aftertreatment devices. Selective Catalytic Reduction (SCR) is a method that can be used in mobile diesel engine aftertreatment systems to reduce harmful NOx emissions. Due to the toxicity and handling problems of ammonia, currently injection of a liquid Urea-Water Solution (UWS) into the exhaust stream approach is used. The water evaporates and the urea undergoes thermal decomposition producing ammonia that reacts with the NOx in the exhaust gas inside a SCR
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Boerensen, Christoph, Dirk Roemer, Christian Nederlof, et al. "Twin-LNT System for Advanced Diesel Exhaust Gas Aftertreatment." SAE International Journal of Fuels and Lubricants 10, no. 2 (2017): 619–33. http://dx.doi.org/10.4271/2017-01-0935.

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Wittka, Thomas, Bastian Holderbaum, Thomas Körfer, and Stefan Pischinger. "Reformer-Based System for Exhaust Aftertreatment at Low Temperatures." MTZ worldwide 75, no. 1 (2014): 36–41. http://dx.doi.org/10.1007/s38313-014-0008-0.

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Xie, Lu, Guozhang Jiang, and Feng Qian. "Research on Aftertreatment Inlet_Outlet Insulation for A Nonroad Middle Range Diesel Engine." Catalysts 10, no. 4 (2020): 454. http://dx.doi.org/10.3390/catal10040454.

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Diesel exhaust aftertreatment systems are required for meeting China StageIV emission regulations. This paper addresses an aftertreatment system designed to meet the China StageIV emission standards for nonroad vehicle markets. It presents a comprehensive experimental research work on aftertreatment skin temperature and the radiated impact on its neighboring parts in a nonroad vehicle powered by a middle range diesel engine under aftertreatment inlet/outlet with insulation and without insulation with multiple experimental conditions, as well as validating the emission results with these two di
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Krais, Annette M., Julie Y. Essig, Louise Gren, et al. "Biomarkers after Controlled Inhalation Exposure to Exhaust from Hydrogenated Vegetable Oil (HVO)." International Journal of Environmental Research and Public Health 18, no. 12 (2021): 6492. http://dx.doi.org/10.3390/ijerph18126492.

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Hydrogenated vegetable oil (HVO) is a renewable diesel fuel used to replace petroleum diesel. The organic compounds in HVO are poorly characterized; therefore, toxicological properties could be different from petroleum diesel exhaust. The aim of this study was to evaluate the exposure and effective biomarkers in 18 individuals after short-term (3 h) exposure to HVO exhaust and petroleum diesel exhaust fumes. Liquid chromatography tandem mass spectrometry was used to analyze urinary biomarkers. A proximity extension assay was used for the measurement of inflammatory proteins in plasma samples.
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IKEDA, Yuta, Hiromi ISHITANI, Kazuhiro HAYASHIDA, and Hiroyuki YAMADA. "604 Effect of Diesel Exhaust Aftertreatment System during Cold-Starting." Proceedings of Conference of Hokkaido Branch 2011.50 (2011): 197–98. http://dx.doi.org/10.1299/jsmehokkaido.2011.50.197.

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Dissertations / Theses on the topic "Exhaust aftertreatment system"

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Themi, Vasos. "Multi-Physics Co-Simulation of Engine Combustion and Exhaust Aftertreatment system: Development of a Multi-Physics Co-Simulation Framework of Engine Combustion and Exhaust Aftertreatment for Model-Based System Optimisation." Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/17403.

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The incorporation of detailed chemistry models in internal combustion engine simulations is becoming mandatory as new combustion strategies and lower global emissions limits are setting the path towards a more efficient engine cycle simulation tool. In this report, the computational capability of the stochastic-based Kinetics SRM engine suite by CMCL Innovations is evaluated in depth. With the main objectives of this research to create a multi-physics co-simulation framework and improve the traditional engine modelling approach of individual simulation of engine system parts, the Kinetics SRM
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González, García-Cervigón Maria Inmaculada. "Adsorption and oxidation of NO to NO2 over a renewable activated carbon from coconut." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13678.

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The NOx health and environmental problems make necessary to reduce this gaseous emission from different sources. Furthermore, its increase in the last years and the difficulties to remove it with after-treatment systems already in the market make more urgent the development of new techniques. The purpose of this investigation is to study the low temperature catalytic oxidation of NO to NO2 and its adsorption over a renewable activated carbon (AC) from coconut shell. The present research presents the results of experimental work carried out using a laboratory scale reactor to investigate the lo
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Holmgreen, Erik M. "Nitrogen dioxide reduction with methane over palladium-based sulfated zirconia catalysts: a componant of a lean exhaust aftertreatement system." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1155739813.

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Clairotte, Michaël. "Impact of fuels and exhaust aftertreatment systems on the unregulated emissions from mopeds, light and heavy-duty vehicles non réglementées des scooters, voitures et camions." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20164/document.

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Le secteur du transport joue un rôle majeur dans le changement climatique et la pollution atmosphérique. Parmi les secteurs d'origine anthropique, le transport routier est considéré comme le premier contributeur au réchauffement climatique, due notamment aux émissions de CO2, de précurseurs d'ozone, et d'aérosols carbonés (carbone noir). De plus, les émissions liées au transport routier telles que les oxydes d'azote (NOx), l'ammoniac (NH3), les carbonyles volatiles, les hydrocarbures gazeux, et les aérosols, contribuent à la dégradation de la qualité de l'air.Le but de cette étude était d'appr
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Pong, Henry. "Evaluation of an Exhaust Gas Mixing Duct for Off-road Diesel After-treatment Systems Using Numerical Methods." Thesis, 2012. http://hdl.handle.net/1807/42896.

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Due to strong motivation to reduce costs and increase performances of stationary diesel after-treatment systems, computational modeling has become a necessary step in system design and improvement. A unique mixing duct typified by significant changes in scale and strong flow curvature was evaluated for its potential to improve flow distribution across the SCR catalyst inlet face. The flow dynamics were investigated with a steady three-dimensional turbulence model and detailed chemistry was studied separately using a one-dimensional channel reactive flow model. Aqueous urea injection was modele
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Books on the topic "Exhaust aftertreatment system"

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Engineers, Society of Automotive, and International Fall Fuels & Lubricants Meeting & Exposition (1998 : San Francisco, Calif.), eds. Direct injection: Engines, emissions, and aftertreatment. Society of Automotive Engineers, 1998.

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Engineers, Society of Automotive. Direct Injection: Engines, Emissions & Aftertreatment (Sp). SAE International, 1998.

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Book chapters on the topic "Exhaust aftertreatment system"

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Weibel, Michel, Volker Schmeißer, and Frank Hofmann. "Model-Based Approaches to Exhaust Aftertreatment System Development." In Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4899-8071-7_22.

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Wittka, Thomas, Bastian Holderbaum, and Thomas Körfer. "Exhaust Aftertreatment Potential of Advanced Coupled NSC-SCR System." In Energy and Environment. John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119307761.ch23.

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Szolak, Robert, Bernd Danckert, Alexander Susdorf, et al. "CatVap® – a new heating measure for exhaust aftertreatment system." In Proceedings. Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-31371-5_4.

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Dawody, Jazaer, Lennart Andersson, Lars J. Pettersson, et al. "An Integrated System for Energy-efficient Exhaust Aftertreatment for Heavy-duty Vehicles." In Renewable Energy in the Service of Mankind Vol I. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17777-9_13.

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Beidl, C., J. Hipp, D. Knaf, et al. "Pre-turbo DeNOx exhaust gas aftertreatment system for future 48V Diesel powertrains." In Proceedings. Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-29943-9_27.

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Serhan, Nahil. "Variation of Soot Structure Along the Exhaust Aftertreatment System—Impact of Oxygenated Diesel Blends on the Soot/Catalyst Interactions." In Energy, Environment, and Sustainability. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1582-5_9.

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Menne, Christoph, Klaus Schrewe, Bernd Maurer, and Jens Schlencker. "Modular HJS heavy-duty exhaust gas aftertreatment system with independent thermal management for high NOX conversion especially in urban operation." In Proceedings. Springer Fachmedien Wiesbaden, 2019. http://dx.doi.org/10.1007/978-3-658-26528-1_13.

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Floyd, Ryan, Levin Michael, and Zafar Shaikh. "DEF Systems and Aftertreatment Architecture Considerations." In Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4899-8071-7_15.

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Angerbauer, Martin, M. Grill, M. Bargende, and F. Inci. "Fundamental research on pre-turbo exhaust gas aftertreatment systems." In Proceedings. Springer Fachmedien Wiesbaden, 2020. http://dx.doi.org/10.1007/978-3-658-29943-9_26.

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Schaml, S., D. Rothe, F. Lutz, and F. I. Zuther. "Highly integrated exhaust gas aftertreatment systems in heavy-duty applications." In Proceedings. Springer Fachmedien Wiesbaden, 2017. http://dx.doi.org/10.1007/978-3-658-17109-4_36.

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Conference papers on the topic "Exhaust aftertreatment system"

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Balmer, M. Lou, Russ Tonkyn, Gary Maupin, et al. "Non-Thermal Plasma System Development for CIDI Exhaust Aftertreatment." In Future Car Congress. SAE International, 2000. http://dx.doi.org/10.4271/2000-01-1601.

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Michelin, Joel, Bertrand Figueras, Christophe Bouly, and Dominique Maret. "Optimized Diesel Particulate Filter System for Diesel Exhaust Aftertreatment." In SAE 2000 World Congress. SAE International, 2000. http://dx.doi.org/10.4271/2000-01-0475.

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Chen, Pingen, and Junmin Wang. "Oxygen Concentration Dynamic Model Through a Diesel Engine Aftertreatment System." In ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASMEDC, 2011. http://dx.doi.org/10.1115/dscc2011-6035.

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This paper presents a control-oriented model describing the dynamics of oxygen concentration through a Diesel engine aftertreatment system that includes a Diesel oxidation catalyst (DOC) and a Diesel particulate filter (DPF). Exhaust gas oxygen concentration is important for catalysts such as NOx conversion efficiencies of selective catalytic reduction (SCR) systems and lean NOx traps (LNT). In the presence of low-pressure loop exhaust gas recirculation (EGR), the exhaust gas oxygen concentration after-DPF also influences combustion. Due to the chemical reactions occurring inside DOC and DPF,
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Gulati, Suresh T., Lisa F. Jones, Michael J. Brady, et al. "Advanced Three-Way Converter System for High Temperature Exhaust Aftertreatment." In International Congress & Exposition. SAE International, 1997. http://dx.doi.org/10.4271/970265.

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Spurk, Paul C., Marcus Pfeifer, Frank-Walter Schütze, and Thomas Kreuzer. "Challenges for the Future Diesel Engines Exhaust Gas Aftertreatment System." In 2007 Fuels and Emissions Conference. SAE International, 2007. http://dx.doi.org/10.4271/2007-01-0040.

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Yu, R. C., A. S. Cole, B. J. Stroia, S. C. Huang, Ken Howden, and Steve Chalk. "Development of Diesel Exhaust Aftertreatment System for Tier II Emissions." In Future Car Congress. SAE International, 2002. http://dx.doi.org/10.4271/2002-01-1867.

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He, Yongsheng. "Development of an Integrated Diesel Exhaust Aftertreatment Simulation Tool with Applications in Aftertreatment System Architecture Design." In SAE World Congress & Exhibition. SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1138.

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Sterlepper, Stefan, Johannes Claßen, Stefan Pischinger, et al. "Relevance of Exhaust Aftertreatment System Degradation for EU7 Gasoline Engine Applications." In WCX SAE World Congress Experience. SAE International, 2020. http://dx.doi.org/10.4271/2020-01-0382.

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Downey, Markus, and Ulrich Pfahl. "Advanced Metal Substrate Technology for Large Engine Exhaust Gas Aftertreatment Systems." In ASME 2011 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/icef2011-60096.

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In the coming years non-road and locomotive diesel engine exhaust gas emissions will become regulated by EPA Tier4 legislation. The stringent emission limits of Tier 4 will require the use of aftertreatment technology currently being used in on-road applications. Based on the potentially large displacements of these engines, the aftertreatment systems will be large and expensive. The flow restriction that is added by the aftertreatment system will result in additional engine pumping work and lower fuel efficiency. The high durability requirements that are demanded of the aftertreatment systems
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Kapparos, David J., Indranil Brahma, Andrea Strzelec, Christopher J. Rutland, David E. Foster, and Yongsheng He. "Integration of Diesel Engine, Exhaust System, Engine Emissions and Aftertreatment Device Models." In SAE 2005 World Congress & Exhibition. SAE International, 2005. http://dx.doi.org/10.4271/2005-01-0947.

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Reports on the topic "Exhaust aftertreatment system"

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Kono, Naoki, Yoshikazu Kobayashi, and Hiroshi Takeda. Effect of Fuel Properties on Diesel Exhaust Emissions From Vehicles Equipped With Advanced Aftertreatment Systems for Emission Reduction. SAE International, 2005. http://dx.doi.org/10.4271/2005-08-0489.

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