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Добірка наукової літератури з теми "Fuel-air mixture"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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Статті в журналах з теми "Fuel-air mixture"

Shayler, P. J., R. M. Isaacs, and T. H. Ma. "The variation of in-Cylinder Mixture Ratios during Engine Cranking at Low Ambient Temperatures." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 206, no. 1 (1992): 55–62. http://dx.doi.org/10.1243/pime_proc_1992_206_160_02.

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The development of mixture conditions in the cylinder of a fuel-injected spark ignition engine during engine cranking has been investigated at ambient temperatures down to —20°C. Mixtures near to the spark plug location were sampled and analysed to determine the air-fuel ratio and the relative proportions of light, medium and heavy components in the fuel. At low temperatures, the local air-fuel ratio varies substantially during the compression stroke, as does mixture composition. The change in mixture ratio over successive cycles of cranking depends on the fuel injected per cycle and the fuel-

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Cernat, A., C. Pana, N. Negurescu, and C. Nutu. "Study of the diesel fuel drop vaporization and combustion at a hydrogen-diesel fuel dual fuelled diesel engine." IOP Conference Series: Materials Science and Engineering 1311, no. 1 (2024): 012001. http://dx.doi.org/10.1088/1757-899x/1311/1/012001.

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Abstract The present paper shows the analysis of the results of the theoretical model developed by authors for diesel fuel drops vaporization study, air-diesel fuel-hydrogen mixture forming estimation and diesel fuel drops combustion in the presence of air-hydrogen mixtures set in the cylinder before the start of conventional fuel injection. The model is applied to a single cylinder diesel engine fuelled with diesel fuel and hydrogen, in dual mode by diesel gas method, at the engine speed of 900 rev/min. For a diesel fuel drop the vaporization speed, mixture formation speed, combustion speed,

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Raide, Veljo, Risto Ilves, and Jüri Olt. "Air-Fuel Mixture Temperatures with Light and Heavy Fuels for Effective Spark Ignition Engine Work." Advances in Military Technology 16, no. 2 (2021): 289–307. http://dx.doi.org/10.3849/aimt.01501.

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This research resulted from military interest in finding methods to provide distributed electricity generation in order to support comprehensive state defence measures. The aim of the study was to investigate the effect of a heated air-fuel mixture on the combustion process of a spark ignition (SI) engine, and to highlight the maximum temperatures to be applied to air-fuel mixtures with different fuel fractions in order to avoid any detonation of the fuel mixture in the engine. Tests were carried out with a petrol engine generator (GENSET) so that an investigation could be conducted into the e

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Булат, П. В., К. Н. Волков, Л. П. Грачев, И. И. Есаков та П. Б. Лавров. "Воспламенение топливной смеси с помощью многоточечного импульсного искрового разряда при различных начальных условиях". Журнал технической физики 91, № 9 (2021): 1339. http://dx.doi.org/10.21883/jtf.2021.09.51212.92-21.

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The development of efficient and reliable systems for the ignition of air/fuel mixtures is of interest for many practical applications associated with the use of combustion devices. To increase the total surface of the flame, ensure the reliability of ignition, increase the rate of combustion in the volume of the chamber and the completeness of combustion of the combustible mixture, multi-point ignition of the air/fuel mixture using several pulsed spark discharges is used. A comparison of the characteristics of combustion products in the working chamber when using different numbers of igniting

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Hamidi, Nurkholis. "Carbon Dioxide Effects on the Flammability Characteristics of Biogas." Applied Mechanics and Materials 493 (January 2014): 129–33. http://dx.doi.org/10.4028/www.scientific.net/amm.493.129.

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Flammability limits and flame speed of methane-carbon dioxide-air mixtures have been studied to understand the effect of carbondioxide on the flammability characteristic of biogas. The fuel of biogas discussed in this study was made by mixing gases of methane and carbon dioxide. The carbon dioxide was varied from 0% (by volume) untill reach the flammability limit of the stoikhiometri biogas-air mixtures. The observation was done using a cubic combustion bomb with the dimension of 500 mm x 200 mm x 10 mm with the initial condition being at room temperature and atmospheric pressure. The ignitor

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Gutarevich, Yurii, and Mykola Hora. "Improving the fuel efficiency of a spark ignition engine under full load conditions by adding nitrogen oxide to the air charge." Journal of Mechanical Engineering and Transport 19, no. 1 (2024): 39–45. http://dx.doi.org/10.31649/2413-4503-2024-19-1-39-45.

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The article presents the results of the oretical studies on the impact of methods for improving the energy characteristics on the fuel economy of a spark ignition engine with feedback and a three-way catalytic converter under full load conditions. Various methods for improving the energy characteristics of spark ignition engines to achieve high energy efficiency are known. The most commonly used method is enriching the fuel-air mixture under full load conditions. However, this method has several drawbacks, including reduced fuel economy and inefficient operation of the catalytic converter. Ano

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Truong, Quang Vinh, and Trung Hoc Ngo. "Calculating limiting oxygen concentration of gas mixtures." International Science Journal of Engineering & Agriculture 2, no. 2 (2023): 142–46. http://dx.doi.org/10.46299/j.isjea.20230202.13.

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The limit values for the fuel concentration in the air-flammable fuel mixture are LEL (lower explosive limit) and UEL (upper explosive limit). The addition of an inert component to the fuel / air mixture determines the increase and decrease of the LEL, until no explosion occurs. The maximum oxygen quantity of the non-combustible - air - inert fuel mixture is LOC (limited oxygen concentration), an important safety property. Investigation of a comprehensive set of data on the flammability at high temperature and ambient pressure obtained from documented sources was carried out for systems contai

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Alaskaree, Ekram Hadi, and Ahmed Qays Khudhair. "Investigating Heat Transfer Effects on Combustion Product Disintegration in Spark Ignition Engines." IOP Conference Series: Earth and Environmental Science 1507, no. 1 (2025): 012077. https://doi.org/10.1088/1755-1315/1507/1/012077.

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Abstract The big problem today is air pollution by car exhaust and how to reduce toxic exhaust gases This study examines the impact of varying exhaust temperatures on combustion products in spark ignition engines, focusing on heat transfer. The research analyzes air-fuel mixtures to understand how different exhaust temperatures influence the disintegration of gases. The findings highlight the importance of optimizing exhaust temperature to achieve Low-emission combustion and reduce toxic emissions. The study emphasizes that the ideal air-fuel mixture can prevent gas disintegration, while poor

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Asoyan, Arthur R., Igor K. Danilov, Igor A. Asoyan, and Georgy M. Polishchuk. "Hydrogen application in internal combustion engines." RUDN Journal of Engineering Researches 21, no. 1 (2020): 14–19. http://dx.doi.org/10.22363/2312-8143-2020-21-1-14-19.

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A technical solution has been proposed to reduce the consumption of basic hydrocarbon fuel, to improve the technical, economic and environmental performance of internal combustion engines by affecting the combustion process of the fuel-air mixture with a minimum effective mass fraction of hydrogen additive in the fuel-air mixture. The burning rate of hydrogen-air mixtures is an order of magnitude greater than the burning rate of similar mixtures based on gasoline or diesel fuel, compared with the former, they are favorably distinguished by their greater detonation stability. With minimal addit

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Okhotnikov, Mikhail, Alexandra Guzhva, and Irina Claptyuk. "FEATURES OF THE STUDY OF FIRES ASSOCIATED WITH EXPLOSIONS OF FUEL-AIR MIXTURES." Problems of risk management in the technosphere 2023, no. 4 (2024): 156–66. http://dx.doi.org/10.61260/1998-8990-2024-2023-4-156-166.

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Explosions of fuel-air mixtures and their accompanying fires are perhaps the most common emergencies. A high probability of this kind of emergency is typical for both industrial facilities and the residential sector. When studying fires associated with deflagration (explosive) gorenje fuel-air mixtures, experts often face a number of questions that are difficult to solve when using the standard methodological approach used in the study of a classic fire. The article presents an expert analysis of fires caused by the ignition (explosion) of a fuel-air mixture. The paper also presents stat

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Дисертації з теми "Fuel-air mixture"

Zaporozhets, А., and А. Redko. "Effect of changing oxygen concentration on formation of air-fuel mixture in aviation engines." Thesis, Ceteman Printing and Copying Center, 2017. http://er.nau.edu.ua/handle/NAU/32981.

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The effect of air composition on the formation of a stoichiometric fuel -air mixture for combustion in aircraft engines is showed. A method for increasing the efficiency of burning aviation fuel, based on the actualization of information on the current concentration of oxygen in the atmosphere is proposed.

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Turcu, Viorel. "Combustion of the fuel/air mixture in the vicinity of a cantilevered ramp fuel injector in a hypervelocity flow." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58732.pdf.

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Lim, Bryan Neo Beng. "Computational simulations of fuel/air mixture flow in the intake port of a SI engine." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310769.

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Jackson, Simon David. "Mixture preparation process in S.I. engines with particular reference to an air assisted fuel vaporiser." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263728.

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Василенко, Олег Вадимович. "Совершенствование рабочего процесса двухтактного двигателя с искровым зажиганием и непосредственным впрыском топлива". Thesis, Украинский государственный университет железнодорожного транспорта, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21849.

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Диссертация на соискание ученой степени кандидата технических наук по специальности 05.05.03 – двигатели и энергетические установки. Национальный технический университет "Харьковский политехнический институт", Харьков, 2016 г. Диссертация посвящена улучшению эколого-экономических показателей двухтактных ДВС с искровым зажиганием путем применение системы непосредственного впрыска топлива в камеру сгорания. На двигателе ДН-4М проведены экспериментальные исследования с расслоением и обеднением топливновоздушного заряда при непосредственном впрыске топлива. Для обеспечения организации расслоенно

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Василенко, Олег Вадимович. "Удосконалення робочого процесу двотактного двигуна з іскровим запалюванням і безпосереднім вприскуванням палива". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21826.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.05.03 – двигуни та енергетичні установки. Національний технічний університет "Харківський політехнічний інститут". – Харків, 2016 р. Дисертація присвячена поліпшенню еколого-економічних показників двотактних ДВЗ з іскровим запалюванням шляхом застосування безпосереднього вприскування палива. Визначено, що перспективним способом внутрішнього сумішоутворення при безпосередньому вприскуванні палива є організація розшарованого паливоповітряного заряду, що забезпечує покращення еколого-економічних показників. Зап

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Chan, Edward C. "Spark ignition of partially stratified gaseous fuel-air mixtures." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/29566.

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The Partially Stratiﬁed Charge (PSC) strategy aims to stabilize the spark ignition of lean-burn natural gas fueled internal combustion engines. This results in an extension of unthrottled load control, as well as a reduction in regulated pollutant and carbon dioxide emissions. While engine experiments demonstrated the feasibility of this technology, its fundamental enabling mechanisms have yet to be identified. An experimental / numerical approach was taken for the current investigation, using an idealized PSC ignition system. The PSC injection took place in a constant volume combustion chambe

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Bokhary, Ahmad Y. F. "CFD modelling of the flow through a 4 valve I.C engine with late intake valve closure." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287684.

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Sharad, Kittur Rohan. "Heavy-Duty Spark-Ignited Single Cylinder Engine Fueling System." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232481.

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Forskning inom motorutveckling bedrivs för att möta kommande emissionskrav och samtidigt minska bränsleförbrukningen. Kommande förbud mot dieseldrivna fordon planeras i flera städer runt om i världen. Alternativa bränsle som exempelvis naturgas ses som en lovande ersättning även för tunga fordon. Metan som är huvudkomponenten av naturgas har en fördelaktigt förhållande mellan väte och kol vilket gör den attraktiv för CO2-reducering. Hur som helst, bränslets låga cetantal och den höga aktiveringsenergin som krävs för att tända naturgas förutsätter tändstiftsantändning.En fördel av att använda e

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SCARCELLI, RICCARDO. "Lean-burn operation for natural gas/air mixtures: the dual-fuel engines." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2008. http://hdl.handle.net/2108/468.

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La ricerca nel campo dei motori a combustione interna è sempre più rivolta ad identificare una soluzione alternativa all’utilizzo dei combustibili derivati dal petrolio, per ragioni di carattere ambientale, politico ed economico. Il gas naturale (NG) è un combustibile ideale per motori a combustione interna, essendo caratterizzato da basso impatto ambientale e consumi ridotti rispetto ai combustibili convenzionali (benzina e gasolio). Inoltre esso è particolarmente adatto ad essere utilizzato in motori ad elevato rapporto di compressione volumetrico, ed è caratterizzato da un ampio campo di in

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Книги з теми "Fuel-air mixture"

Zuev, Sergey, Daut Yahutl', Boris Bass, and Ruslan Maleev. Ignition devices for fuel-air mixture of heat engines. INFRA-M Academic Publishing LLC., 2024. http://dx.doi.org/10.12737/1911604.

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The textbook describes the basic theoretical foundations and practical tasks in the field of research of ignition devices of fuel-air mixture of heat engines. The data concerning the working conditions of spark plugs, their classification, device and main characteristics are presented. The features of electrophysical processes in spark plugs of automotive internal combustion engines are described in detail. The methodology and algorithms of numerical simulation of the thermal state of a spark plug are considered. The development, testing and quality control, production and operation of ignitio

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Hui, Timothy H. Y. Investigation of pre-mature ignition of a hypervelocity fuel/air mixture with nitrogen injection. National Library of Canada, 2002.

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Hui, Timothy H. Y. Investigation of pre-mature ignition of a hypervelocity fuel/air mixture with nitrogen injection. University of Toronto, Institute for Aerospace Studies, 2002.

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Turcu, Viorel. Combustion of the fuel/air mixture in the vicinity of a cantilevered ramp fuel injector in a hypervelocity flow. National Library of Canada, 2001.

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Mihaylov, Vyacheslav, Elena Sotnikova, and Nina Kalpina. Eco-friendly air protection systems for motor transport facilities. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1093106.

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The textbook considers the issue of assessing the heat and humidity state of air in the processes of its processing in various systems, provides requirements for air protection means, taking into account their environmental friendliness, shows ways of energy saving in cooling, heating and year-round air conditioning systems, as well as when protecting the atmosphere from harmful emissions. The way of energy saving with individual thermal protection of the operator by means of local cooling during air treatment in an irrigated intensified nozzle is shown and recommendations for reducing its mat

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Karim, G. A. Fire spread through stratified fuel-air mixtures. Alberta Occupational Health and Safety Heritage Grant Program, 1989.

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Perkins, Hugh Douglas. Effects of fuel distribution on detonation tube performance. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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Zaporozhets, A. O., and V. P. Babak. Control of fuel combustion in small and medium power boilers. PH “Akademperiodyka”, 2020. http://dx.doi.org/10.15407/akademperiodyka.418.128.

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The monograph deals with the problems of increasing the effi ciency of fuel combustion and reducing emissions of harmful substances in boilers with a capacity of up to 3.5 MW. Approaches for the formation of stoichiometric air-fuel mixtures in boilers are developed. Th e method for indirect determination of the concentration of air components was developed, which allows to increase the metrological characteristics of gas-analyzing devices. Methods, algorithms and programs to automate the combustion control process, while ensuring the reliability of the data, are created. A system for monitorin

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Effects of fuel distribution on detonation tube performance. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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Частини книг з теми "Fuel-air mixture"

Vats, Ankur, Vivek Kumar, and Saquib Reza. "Experimental Investigation of Flame Speed of Fuel–Air Mixture for Varying Air/Fuel Ratio." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-5849-3_2.

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Duan, Lunbo, and Lin Li. "OCAC Technology in Oxy-Fuel Combustion for Carbon Capture." In Oxygen-Carrier-Aided Combustion Technology for Solid-Fuel Conversion in Fluidized Bed. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9127-1_4.

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AbstractOxy-fuel combustion is regarded as one of the most promising carbon capture and storage technologies to mitigate the climate change, which has been widely studied and demonstrated in academia and industry. In the oxy-fuel process, a mixture of recycled flue gas and pure O2 obtained from an air separation unit is introduced into the combustion chamber to replace air as oxidant gas. Therefore, high concentration of CO2 can be obtained in flue gas, which is suitable for the subsequent carbon storage and utilization. It also has other advantages, such as low NOx emission, easy scale-up, an

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Guskov, V. F., and A. N. Gots. "Duration of Ignition Delay of Fuel–Air Mixture in Diesel Engines." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22063-1_85.

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Rotter, Frank, Jochen Scholz, Jens Müller, et al. "Simultaneous, Planar Determination of Fuel/Air Ratio and Velocity Field in Single Phase Mixture Formation Processes." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01106-1_17.

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Hélie, Jérôme, and Arnaud Trouvé. "A Model Description of the Effects of Variable Fuel-Air Mixture Composition on Turbulent Flame Propagation." In IUTAM Symposium on Turbulent Mixing and Combustion. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-017-1998-8_14.

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Büchner, H., and W. Leuckel. "The influence of Fuel/Air Mixture Oscillations on the Formation of Self-Sustained Combustion Instabilities in Premixed Combustion Systems." In Unsteady Combustion. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1620-3_4.

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Flamme, M., and H. Kremer. "Reduction of the NOx Output from Industrial Burners Firing a Mixture of Fuel Gas and Combustion Air Enriched Oxygen." In Clean Combustion Technologies. CRC Press, 2024. http://dx.doi.org/10.1201/9781003539322-28.

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Du, Yang, Jian Feng Gao, and Xin Sheng Jiang. "Studies of Fuel-Air Mixture Explosion Characteristics and Structure Fracture and Damage in Large-Scale Metal Oil Storage Tank." In Fracture and Damage Mechanics V. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-413-8.1031.

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Liang, Xingxing, Zhongqi Wang, Pengyi Li, and Fuquan Zhang. "Computational Study the Effects of Venting Pressure and Ignition Location on the Fuel-Air Mixture Explosion Load in Vented Chamber." In Advances in Smart Vehicular Technology, Transportation, Communication and Applications. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04585-2_29.

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Aitouche, Abdel, Raouf Mobasheri, Xiang Li, et al. "River Project, An Innovative Way to Reduce Pollution on Riverboats." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_80.

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AbstractConsidering the EU environmental standards for non-road mobile machinery (NRMM), reducing pollutant emissions from inland waterway vessels is becoming increasingly important. The RIVER research project aims to find solutions to achieve nitrogen-free combustion in waterways transportation systems while also emitting zero CO2 emission. RIVER addresses these issues using Carbon Capture and Storage (CCS) technology and Oxy-fuel combustion (OFC). The project is co-financed by the European Union, as part of the Interreg North-West Europe program. There are ten partners involved in this proje

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Тези доповідей конференцій з теми "Fuel-air mixture"

Ishii, Eiji, Kazuki Yoshimura, Yoshihito Yasukawa, and Hideharu Ehara. "Effects of Opening and Closing Fuel-Injector Valve on Air/Fuel Mixture." In ASME 2016 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icef2016-9309.

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Lower engine emissions and improved fuel efficiency have recently become more necessary in automobile engines. Fuel injectors need to be designed to decrease late fuel during valve closing and to deal with multiple injections. Fuel-spray behaviors are controlled by the valve-lifts of fuel injectors; therefore, air/fuel mixture simulations that integrate with inner flow simulations in fuel injectors during the opening and closing of valves are essential for studying the effects of valve motions on air/fuel mixtures. We previously developed a late-fuel simulation near the nozzle outlets of a fue

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Takahashi, Eiichi. "Laser ignition in flowing air-fuel mixture." In Laser Ignition Conference. OSA, 2017. http://dx.doi.org/10.1364/lic.2017.lfa2.2.

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Holthaus, B. E., R. M. Wagner, and J. A. Drallmeier. "Measurements of Intake Port Fuel/Air Mixture Preparation." In International Congress & Exposition. SAE International, 1997. http://dx.doi.org/10.4271/970867.

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Yoon, Sung Pil, Hyun Jae Kim, Byung-Tak Park, et al. "Mixed-Fuels Fuel Cell Running on Methane-Air Mixture." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74081.

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In order to develop SOFC running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) and applied the mo

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Ishii, Eiji, Yoshihito Yasukawa, Yoshihiro Sukegawa, and Hiroshi Yamada. "A Fuel-Spray Simulation Considering Fuel-Jet Breakup Near Fuel Injector and Composition of Air/Fuel Mixture." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12380.

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To simulate multi-scale free surfaces in the fuel spray of an injector for automobile engine, we combined a liquid-film-breakup simulation and an air/fuel-mixture simulation. The liquid-film breakup near the injector outlet was simulated by using a particle method, and the air/fuel mixture after the liquid-film breakup was simulated by using a “discrete droplet model” (DDM). Distributions of droplet diameters and velocities, calculated in the liquid-film breakup simulation, were used as the injection condition of DDM. We applied our new method to simulate the spray from a collision fuel inject

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Chernikov, V., S. Chuvashev, A. Ershov, V. Shibkov, B. Timofeev, and I. Timofeev. "Formation of gas discharges in supersonic flows of air and fuel-air mixture." In 9th International Space Planes and Hypersonic Systems and Technologies Conference. American Institute of Aeronautics and Astronautics, 1999. http://dx.doi.org/10.2514/6.1999-4904.

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Brunocilla, Marcello F., and Fernando Lepsch. "Influence of hot fuel injection on air/fuel mixture preparation and effects on Flex Fuel Engines." In 2006 SAE Brasil Congress and Exhibit. SAE International, 2006. http://dx.doi.org/10.4271/2006-01-2619.

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Ibrahim, Uzair, and Sarah Farrukh. "Optimization of Fuel in Saturated Steam Boiler through Preheating of Controlled Air-Fuel Mixture." In 2019 2nd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET). IEEE, 2019. http://dx.doi.org/10.1109/icomet.2019.8673398.

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Mehdi, Ghazanfar, Maria Grazia De Giorgi, Donato Fontanarosa, Sara Bonuso, and Antonio Ficarella. "Ozone Production With Plasma Discharge: Comparisons Between Activated Air and Activated Fuel/Air Mixture." In ASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/gt2021-60167.

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Abstract This study focused on the comparative analysis about the production of ozone and active radicals in presence of nanopulsed plasma discharge on air and on fuel/air mixture to investigate its effect on combustion enhancement. This analysis is based on numerical modeling of air and methane/air plasma discharge with different repetition rates (100 Hz, 1000 Hz and 10000 Hz). To this purpose, a two-step approach has been proposed based on two different chemistry solvers: a 0-D plasma chemistry solver (ZDPlasKin toolbox) and a combustion chemistry solver (CHEMKIN software suite). Consequentl

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Wang, Hangong, Bailin Zha, and Xunjia Su. "High Velocity Oxygen/Air Fuel Spray." In ITSC2003, edited by Basil R. Marple and Christian Moreau. ASM International, 2003. http://dx.doi.org/10.31399/asm.cp.itsc2003p0789.

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Abstract According to aerodynamics and thermodynamics, High Velocity Oxygen/Air Fuel Spray system was successfully developed. The system introduced stream atomization, high-pressure combustion chamber, converging/diverging nozzle, spark plug ignition, radial powder injection with reliable operation. The system has the function of both of HVOF and HVAF. It can not only use air and oxygen to spray respectively, but also the mixture of air and oxygen, so the velocity and temperature of the flame can be changed by adjusting the flux of air and oxygen. The system can produce high quality cermets, m

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Звіти організацій з теми "Fuel-air mixture"

Green, H., J. Whitelaw, and K. Wong. Air-fuel mixture characteristics of reciprocating engines. Office of Scientific and Technical Information (OSTI), 1985. http://dx.doi.org/10.2172/6411264.

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Vieira, Greg, and Daniel Olsen. PR179-22206-R01 Prechamber Air and Fuel Premixing Proof of Concept. Pipeline Research Council International, Inc. (PRCI), 2024. http://dx.doi.org/10.55274/r0000099.

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This study investigates the feasibility of injecting a premixed air and fuel charge into the precombustion chamber (PCC) of a Cooper-Bessemer GMV-4TF 2-stroke lean-burn natural gas engine. The primary ob-jectives are to enhance combustion stability, reduce emissions, and address the challenges associated with stratification within the PCC. Computational fluid dynamics (CFD) simulations were conducted to evaluate both ideal and practical premixed scenarios. The ideal premixed scenario aimed to achieve improved ho-mogeneity and faster flame propagation. Low-pressure premixed injections were test

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Olsen and Fletcher. L52071 Literature Review Fuel-Air Mixing in Large Bore Natural Gas Engines. Pipeline Research Council International, Inc. (PRCI), 1999. http://dx.doi.org/10.55274/r0010949.

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Mixing is viewed as being problematic in many internal combustion engines, particularly large bore natural gas engines. In reviewing the literature an attempt is made to distinguish between the influences of mixing and turbulence, although for much of the published research the distinction is not made. Mixing is determined to have a major impact on engine efficiency, overall emissions, flame propagation, and cycle-to-cycle variations. The improvement of engine efficiency and overall emissions is concluded to be primarily due to the extension of the lean limit, a direct consequence of improved

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Hedrick and Jacobs. PR-457-14201-R01 Variable Natural Gas - Composition Effects and Control Methods for Two-Stroke Engines. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0010027.

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Literature is reviewed for the impacts of variable natural gas composition on two-stroke lean burn pipeline compressor engines. Information gathered for these engines can be simplified for development of control algorithms in four-stroke and richer burning engines. Data shows that geospatial, geological, and transient hydraulic effects cause composition variations that adversely affect engine emissions, efficiency, rated performance, and operational safety considering auto-ignition effects. In order to compensate for these changes in composition, better engine control schemes can help meet des

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Lim, Ock Taeck, and Norimasa Iida. The Analysis of the Effect of n-Heptane-Based equivalence Ratio on the HCCI Combustion Characteristics of n-Heptane and Iso-Octane Fuel/Air Mixture Using a Rapid Compression Machine. SAE International, 2005. http://dx.doi.org/10.4271/2005-08-0218.

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L52074 Investigation of Mixing and Scavenging in Large Bore (Natural Gas) Engines using Laser Diagnostics. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0011345.

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Poor in-cylinder mixing processes due to ineffective fuel delivery are problematic in large-bore, slow-speed, natural gas two-stroke cycle engines. High levels of combustion variability and documented engine performance improvements due to mixing enhancements, such as high-pressure fuel injection, support this assertion. The natural gas industry operates over 8000 stationary large bore (bore greater than 35 cm) natural gas engines for natural gas compression on pipelines and power generation. Much of the research in the past 10-20 years on large bore natural gas engines has been aimed at enhan

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