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Artículos de revistas sobre el tema "Internal Combustion Engineering"

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Autor: Grafiati

Publicado: 6 de septiembre de 2023

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1

Chatain, H. G. "INTERNAL COMBUSTION ENGINEERING. TREATMENT OF HYDROCARBON FUELS*". Journal of the American Society for Naval Engineers 29, n.º 3 (18 de marzo de 2009): 574–79. http://dx.doi.org/10.1111/j.1559-3584.1917.tb00137.x.

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2

Reitz, Rolf D. "Combustion and ignition chemistry in internal combustion engines". International Journal of Engine Research 14, n.º 5 (octubre de 2013): 411–15. http://dx.doi.org/10.1177/1468087413498047.

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3

Makarov, A. R., S. V. Smirnov, S. V. Osokin, I. S. Pyatov, Y. I. Vrublevskaya y L. A. Finkelberg. "Engineering materials for pistons of internal combustion engines". Izvestiya MGTU MAMI 7, n.º 1-1 (10 de enero de 2013): 118–25. http://dx.doi.org/10.17816/2074-0530-68244.

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This article provides an overview of modern construction materials for production of pistons for internal combustion engines including composites. A comparison of mechanical and thermal properties of these materials is presented. It is reported on the experience of production of pistons made from carbon composite in Russia.

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4

Stone, C. R. "Book Review: Internal Combustion Engineering: Science and Technology". International Journal of Mechanical Engineering Education 22, n.º 1 (enero de 1994): 74–75. http://dx.doi.org/10.1177/030641909402200110.

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5

Pekkan, K. y M. R. Nalim. "Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations". Journal of Engineering for Gas Turbines and Power 125, n.º 3 (1 de julio de 2003): 720–33. http://dx.doi.org/10.1115/1.1586315.

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A wave rotor is proposed for use as a constant volume combustor. A novel design feature is investigated as a remedy for hot gas leakage, premature ignition, and pollutant emissions that are possible in this class of unsteady machines. The base geometry involves fuel injection partitions that allow stratification of fuel/oxidizer mixtures in the wave rotor channel radially, enabling pilot ignition of overall lean mixture for low NOx combustion. In this study, available turbulent combustion models are applied to simulate approximately constant volume combustion of propane and resulting transient compressible flow. Thermal NO production histories are predicted by simulations of the STAR-CD code. Passage inlet/outlet/wall boundary conditions are time-dependent, enabling the representation of a typical deflagrative internal combustor wave rotor cycle. Some practical design improvements are anticipated from the computational results. For a large number of derivative design configurations, fuel burn rate, two-dimensional flow and emission levels are evaluated. The sensitivity of channel combustion to initial turbulence levels is evaluated.

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6

Jones, R. L. "Catalytic Combustion Effects in Internal Combustion Engines". Combustion Science and Technology 129, n.º 1 (1 de noviembre de 1997): 185–95. http://dx.doi.org/10.1080/00102209708935725.

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7

Pulkrabek, Willard W. "Engineering Fundamentals of the Internal Combustion Engine, 2nd Ed." Journal of Engineering for Gas Turbines and Power 126, n.º 1 (1 de enero de 2004): 198. http://dx.doi.org/10.1115/1.1669459.

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8

Nalim, M. R. "Assessment of Combustion Modes for Internal Combustion Wave Rotors". Journal of Engineering for Gas Turbines and Power 121, n.º 2 (1 de abril de 1999): 265–71. http://dx.doi.org/10.1115/1.2817116.

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Combustion within the channels of a wave rotor is examined as a means of obtaining pressure gain during heat addition in a gas turbine engine. Three modes of combustion are assessed: premixed autoignition (detonation), premixed deflagration, and non-premixed autoignition. The last two will require strong turbulence for completion of combustion in a reasonable time in the wave rotor. The autoignition modes will require inlet temperatures in excess of 800 K for reliable ignition with most hydrocarbon fuels. Examples of combustion mode selection are presented for two engine applications.

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9

Borman, Gary y Kazuie Nishiwaki. "Internal-combustion engine heat transfer". Progress in Energy and Combustion Science 13, n.º 1 (enero de 1987): 1–46. http://dx.doi.org/10.1016/0360-1285(87)90005-0.

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10

Collings, Nick, Keith Glover, Bruce Campbell y Stewart Fisher. "Internal combustion engine exhaust gas analysis". International Journal of Engine Research 18, n.º 4 (29 de julio de 2016): 308–32. http://dx.doi.org/10.1177/1468087416656946.

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A generalized approach, based on linear algebra, is described for processing exhaust gas analyser data. Systematic methods of deriving useful relationships from arbitrary data are proposed and used to produce several novel and useful results, as well as to show how existing relationships may be derived in forms that involve no approximations. The methods developed lend themselves to automatic real-time assessment of the consistency of gas analyser data, and in the case of inconsistencies, identifying plausible reasons. The approach is also used to develop methods to examine storage and release mechanisms within after-treatment devices, such as oxygen storage/release in three-way catalysts, soot oxidation in particle filters and water condensation/evaporation.

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11

Faizal, M., L. S. Chuah, C. Lee, A. Hameed, J. Lee y M. Shankar. "REVIEW OF HYDROGEN FUEL FOR INTERNAL COMBUSTION ENGINESREVIEW OF HYDROGEN FUEL FOR INTERNAL COMBUSTION ENGINES". Journal of Mechanical Engineering Research and Developments 42, n.º 3 (10 de abril de 2019): 35–46. http://dx.doi.org/10.26480/jmerd.03.2019.35.46.

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12

Ju, Canze. "Analysis of the Research Status of Internal Combustion Engines". Highlights in Science, Engineering and Technology 53 (30 de junio de 2023): 214–19. http://dx.doi.org/10.54097/hset.v53i.9728.

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Since the internal combustion engine came out in the 1960s, it has become a relatively perfect machine through continuous improvement and development. Internal combustion engine has many advantages, such as thermal efficiency, high power, wide speed range, convenient matching and good mobility, so it has been widely used. All kinds of automobiles and tractors, agricultural machinery, engineering machinery and small mobile power stations in the world are powered by internal combustion engines. Ships, conventional submarines and some small aircraft are also propelled by internal combustion engines. The number of internal combustion engines in the world ranks first in the power machinery and plays a very important role in human activities. In the aspect of human technology, any successful invention can not be achieved overnight. The development of the internal combustion engine is the same. The internal combustion engine has gone through many stages of development and has been improved one after another. This paper mainly introduces the historical development of heat engines, and the improvement and use of different types of heat engines in the development.

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13

Petrescu, Florian Ion T., Antonio Apicella, John Kaiser Calautit, Filippo Berto, Juan M. Corchado, Ronald B. Bucinell, Bilal Akash, Raffaella Aversa y Relly Victoria V. Petrescu. "Corrigendum: Forces at Internal Combustion Engines". American Journal of Engineering and Applied Sciences 12, n.º 1 (1 de enero de 2019): 122. http://dx.doi.org/10.3844/ajeassp.2019.129.

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14

Marudhappan, Raja, Chandrasekhar Udayagiri y Koni Hemachandra Reddy. "Combustion chamber design and reaction modeling for aero turbo-shaft engine". Aircraft Engineering and Aerospace Technology 91, n.º 1 (7 de enero de 2018): 94–111. http://dx.doi.org/10.1108/aeat-10-2017-0217.

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Purpose The purpose of this paper is to formulate a structured approach to design an annular diffusion flame combustion chamber for use in the development of a 1,400 kW range aero turbo shaft engine. The purpose is extended to perform numerical combustion modeling by solving transient Favre Averaged Navier Stokes equations using realizable two equation k-e turbulence model and Discrete Ordinate radiation model. The presumed shape β-Probability Density Function (β-PDF) is used for turbulence chemistry interaction. The experiments are conducted on the real engine to validate the combustion chamber performance. Design/methodology/approach The combustor geometry is designed using the reference area method and semi-empirical correlations. The three dimensional combustor model is made using a commercial software. The numerical modeling of the combustion process is performed by following Eulerian approach. The functional testing of combustor was conducted to evaluate the performance. Findings The results obtained by the numerical modeling provide a detailed understanding of the combustor internal flow dynamics. The transient flame structures and streamline plots are presented. The velocity profiles obtained at different locations along the combustor by numerical modeling mostly go in-line with the previously published research works. The combustor exit temperature obtained by numerical modeling and experiment are found to be within the acceptable limit. These results form the basis of understanding the design procedure and opens-up avenues for further developments. Research limitations/implications Internal flow and combustion dynamics obtained from numerical simulation are not experimented owing to non-availability of adequate research facilities. Practical implications This study contributes toward the understanding of basic procedures and firsthand experience in the design aspects of combustors for aero-engine applications. This work also highlights one of the efficient, faster and economical aero gas turbine annular diffusion flame combustion chamber design and development. Originality/value The main novelty in this work is the incorporation of scoops in the dilution zone of the numerical model of combustion chamber to augment the effectiveness of cooling of combustion products to obtain the desired combustor exit temperature. The use of polyhedral cells for computational domain discretization in combustion modeling for aero engine application helps in achieving faster convergence and reliable predictions. The methodology and procedures presented in this work provide a basic understanding of the design aspects to the beginners working in the gas turbine combustors particularly meant for turbo shaft engines applications.

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15

Kazimierski, Zbyszko y Jerzy Wojewoda. "Double internal combustion piston engine". Applied Energy 88, n.º 5 (mayo de 2011): 1983–85. http://dx.doi.org/10.1016/j.apenergy.2010.10.042.

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16

Yaşar, Halit, Hakan Serhad Soyhan, Adnan Parlak y Nadir Yılmaz. "Recent Trends in Internal Combustion Engines". Advances in Mechanical Engineering 6 (1 de enero de 2014): 143160. http://dx.doi.org/10.1155/2014/143160.

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17

Daneshyar, H. "Combustion systems of high-speed piston internal combustion engines". Combustion and Flame 62, n.º 1 (octubre de 1985): 105–6. http://dx.doi.org/10.1016/0010-2180(85)90100-2.

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18

Yue, Zongyu y Haifeng Liu. "Advanced Research on Internal Combustion Engines and Engine Fuels". Energies 16, n.º 16 (11 de agosto de 2023): 5940. http://dx.doi.org/10.3390/en16165940.

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Internal combustion (IC) engines serve as power devices that are widely applied in the fields of transport, engineering machinery, stationary power generation, etc., and are evolving towards the goal of higher efficiency and lower environmental impacts. In this Editorial, the role of IC engines for future transport and energy systems is discussed, and research directions for advancing IC engine and fuel technologies are recommended. Finally, we introduce the 14 technical papers collected for this Special Issue, which cover a wide range of research topics, including diesel spray characteristics, combustion technologies for low- and zero-carbon fuels, advanced combustion mode, fuel additive effects, engine operation under extreme conditions and advanced materials and manufacturing processes.

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19

Xiang, Yang, Jiachi Yao, Qiang Zhou, Sichong Qian y Shuai Wang. "Research on Experimental Method for Obtaining Independent Combustion Noise of Internal Combustion Engine". Shock and Vibration 2018 (1 de noviembre de 2018): 1–14. http://dx.doi.org/10.1155/2018/2413831.

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Internal combustion engine noise sources are complex and changeable. Combustion noise is usually drowned out by mechanical noise and aerodynamic noise. Traditional noise source identification methods can only qualitatively identify combustion noise. In order to quantitatively obtain the independent pure combustion noise of an internal combustion engine, it is necessary to design and build a separate noise source simulation test bench. In this paper, the combustion noise separation test bench based on transfer function method is designed and implemented. In the test, a pressure pulse device is installed in the combustion chamber. When the piston is at top dead center (TDC), pulse pressure is generated to excite the internal combustion engine to radiate noise. The pressure signal and noise signal are utilized to obtain the transfer function of combustion pressure and noise. Then, according to the cylinder pressure and transfer function, the combustion noise can be directly calculated. The test was carried out on 4120SG diesel engine. Experimental results show that when the internal combustion engine is under 1500 rpm and no-load condition and 800 rpm and no-load condition, the frequency components of independent pure combustion noise are both mainly concentrated at 1100 Hz, 1400 Hz, and 3000 Hz. Furthermore, the internal combustion engine vibration test method and the combustion noise empirical formula calculation method are both carried out to show accuracy and effectiveness of the obtained independent combustion noise through the combustion noise separation test based on transfer function method.

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20

TAKAHASHI, Sanyo, Hiroyuki MORITA, Osamu KURATA y Iwao YAMASHITA. "Hydrogen Internal Combustion Stirling Engine". JSME International Journal Series B 46, n.º 4 (2003): 633–42. http://dx.doi.org/10.1299/jsmeb.46.633.

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21

Falfari, Stefania, Giulio Cazzoli, Valerio Mariani y Gian Marco Bianchi. "Hydrogen Application as a Fuel in Internal Combustion Engines". Energies 16, n.º 6 (8 de marzo de 2023): 2545. http://dx.doi.org/10.3390/en16062545.

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Hydrogen is the energy vector that will lead us toward a more sustainable future. It could be the fuel of both fuel cells and internal combustion engines. Internal combustion engines are today the only motors characterized by high reliability, duration and specific power, and low cost per power unit. The most immediate solution for the near future could be the application of hydrogen as a fuel in modern internal combustion engines. This solution has advantages and disadvantages: specific physical, chemical and operational properties of hydrogen require attention. Hydrogen is the only fuel that could potentially produce no carbon, carbon monoxide and carbon dioxide emissions. It also allows high engine efficiency and low nitrogen oxide emissions. Hydrogen has wide flammability limits and a high flame propagation rate, which provide a stable combustion process for lean and very lean mixtures. Near the stoichiometric air–fuel ratio, hydrogen-fueled engines exhibit abnormal combustions (backfire, pre-ignition, detonation), the suppression of which has proven to be quite challenging. Pre-ignition due to hot spots in or around the spark plug can be avoided by adopting a cooled or unconventional ignition system (such as corona discharge): the latter also ensures the ignition of highly diluted hydrogen–air mixtures. It is worth noting that to correctly reproduce the hydrogen ignition and combustion processes in an ICE with the risks related to abnormal combustion, 3D CFD simulations can be of great help. It is necessary to model the injection process correctly, and then the formation of the mixture, and therefore, the combustion process. It is very complex to model hydrogen gas injection due to the high velocity of the gas in such jets. Experimental tests on hydrogen gas injection are many but never conclusive. It is necessary to have a deep knowledge of the gas injection phenomenon to correctly design the right injector for a specific engine. Furthermore, correlations are needed in the CFD code to predict the laminar flame velocity of hydrogen–air mixtures and the autoignition time. In the literature, experimental data are scarce on air–hydrogen mixtures, particularly for engine-type conditions, because they are complicated by flame instability at pressures similar to those of an engine. The flame velocity exhibits a non-monotonous behavior with respect to the equivalence ratio, increases with a higher unburnt gas temperature and decreases at high pressures. This makes it difficult to develop the correlation required for robust and predictive CFD models. In this work, the authors briefly describe the research path and the main challenges listed above.

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22

Ruiz, Francisco. "Regenerative internal combustion engine. I - Theory". Journal of Propulsion and Power 6, n.º 2 (marzo de 1990): 203–8. http://dx.doi.org/10.2514/3.23245.

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23

Tartakovsky, L. y M. Sheintuch. "Fuel reforming in internal combustion engines". Progress in Energy and Combustion Science 67 (julio de 2018): 88–114. http://dx.doi.org/10.1016/j.pecs.2018.02.003.

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24

Zaichenko, Stefan, Natalia Jukova, Dmitro Yakovlev, Vadym Shalenko y Boris Korniychuk. "Intelligent multisensor system for identification ta estimates of the technical mill of electrical engineering". Gіrnichі, budіvelnі, dorozhnі ta melіorativnі mashini, n.º 97 (29 de julio de 2021): 62–67. http://dx.doi.org/10.32347/gbdmm2021.97.0501.

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The problem of diagnosing power generating equipment by analyzing gases released into the atmosphere. The object of study is the process of diagnosing power generating equipment based on an internal combustion engine. The purpose of the work is the research is to develop the concept of the structure of the intellectual multisensory system of technical diagnostics of the autonomous electric generator on the basis of the internal combustion engine with use of electronic gas analyzers. To achieve this goal, the following tasks have been solved. To determine the possible states of the autonomous generator of electric energy on the basis of the internal combustion engine. For each state of the autonomous generator of electric energy to define characteristic gas evaporations. Choose a set of sensors that will determine the con-centration of components in the air with high accuracy. To develop an algorithm for the operation of a set of technical diagnostic equipment for the basic work of the principles of the neural system and electronic gas sensors. To check the developed diagnostic complex of electronic gas analyzers for determination of a condition of the independent generator of electric energy on the basis of the internal combustion engine. Improving the accuracy of localization in the search for a defect by additional chemical analysis of gases of power generating equipment is provided by the analysis of concentrations of hydrogen chloride, aldehydes, phenols and light hydrocarbons. A feature of the presented system for diagnosing the state of an autonomous electric power generator based on an internal combustion engine is the ability to perform diagnostic work without removing the equipment from work, which minimizes downtime. Also, the use of this system allows you to detect the development of a defect in the early stages of development, which prevents and significantly reduces the cost of repairing the energy source.

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25

Tily, R. y C. J. Brace. "Analysis of cyclic variability in combustion in internal combustion engines using wavelets". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 225, n.º 3 (9 de febrero de 2011): 341–53. http://dx.doi.org/10.1177/09544070jauto1723.

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26

Stelmashov, Ihor. "FEATURES OF A COMPREHENSIVE FIRE-TECHNICAL STUDY OF THE CIRCUMSTANCES OF FIRES ON MOTOR-TRACTOR EQUIPMENT EQUIPPED WITH DIESEL INTERNAL COMBUSTION ENGINES WITH A COMMON RAIL INJECTION SYSTEM". Criminalistics and Forensics, n.º 67 (9 de agosto de 2022): 519–25. http://dx.doi.org/10.33994/kndise.2022.67.52.

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In the expert practice of fire research there is an increasing need for forensic complex fire-technical and mechanical engineering examinations. This need is especially relevant against the background of growing fires in Ukraine on modern foreign-made vehicles. In particular, those equipped with internal combustion diesel engines with Common Rail injection system. Key words: forensic fire-technical and mechanical-engineering examination, diesel internal combustion engine, fuel system, Common Rail injection system.

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27

Wierzbicki, Sławomir, Kamil Duda y Maciej Mikulski. "Renewable Fuels for Internal Combustion Engines". Energies 14, n.º 22 (18 de noviembre de 2021): 7715. http://dx.doi.org/10.3390/en14227715.

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The continuous need for systematization and open dissemination of knowledge on Renewable Fuels intended for use in Internal Combustion Engines forms the premise of the presented Special Issue titled “Renewable Fuels for Internal Combustion”. Experts in the field were encouraged to share their latest findings in the form of original research papers, case studies, or short reviews. Works targeting all aspects of the value chain were considered necessary, including the following: (liquid and gaseous) fuel production process, upgrading (catalytic and fractional blending), up to end, valorization in combustion engines (conventional and advanced concepts). Finally, techno-economic analyses aiming to valorize the value chain holistically were warmly encouraged to submit papers in this Special Issue of the Energies Journal. In this book, the reader will find successful submissions that present the latest findings from the discussed research field, encapsulated into nine chapters.

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28

Kicha, G. P. "Oil cleaning in internal combustion engines". Chemistry and Technology of Fuels and Oils 21, n.º 2 (febrero de 1985): 87–90. http://dx.doi.org/10.1007/bf00719684.

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29

Magaril, E. R., R. Z. Magaril y V. G. Bamburov. "Specific features of combustion in gasoline-driven internal combustion engines". Combustion, Explosion, and Shock Waves 50, n.º 1 (enero de 2014): 75–79. http://dx.doi.org/10.1134/s0010508214010092.

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30

Nikitin, A. y V. Poberezhnyy. "The analyses of working process unstable in combustion chamber of ship internal-combustion engine". Journal of Physics: Conference Series 2131, n.º 2 (1 de diciembre de 2021): 022064. http://dx.doi.org/10.1088/1742-6596/2131/2/022064.

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Abstract The article considers examples of unstable combustion processes in individual cylinders of marine diesel installations. It is shown that the instability of thermal engineering processes is determined by the grade of fuel, fuel preparation, wear of the cylinder-piston group and fuel equipment. The necessity of continuous monitoring of the technical condition of the power plant during operation is shown.

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31

Tang, Gangzhi, Shuaibin Wang, Li Zhang y Huichao Shang. "Diagnosis and Improvement of Combustion Characteristics of Methanol Miniature Reciprocating Piston Internal Combustion Engine". Micromachines 11, n.º 1 (16 de enero de 2020): 96. http://dx.doi.org/10.3390/mi11010096.

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A micro-reciprocating piston internal combustion engine with liquid hydrocarbon fuel has the potential to supply ultrahigh density energy to micro electro mechanical system because of its high-density energy, simple structure, and mature energy conversion principle. However, the diagnostic test of the combustion characteristics of the micro reciprocating piston internal combustion engine shows that its combustion characteristics are poor, and the combustion rate was lower with the combustion duration of more than 50 °CA. The mean indicated pressure (Pmi) value was only 0.137 MPa, the combustion stability was very poor, and the cycle variation rate of the Pmi was up to 60%. To improve its combustion performance, the method to enhance combustion in micro-space is explored then. Mechanism studies have shown that the pyrolysis reaction of nitromethane and hydrogen peroxide can produce amounts of free radicals OH, with the possibility of improving the combustion of methanol. Therefore, a method for adjusting the composition of methanol fuel to enhance combustion is proposed, and the method is theoretically confirmed. Finally, based on this method, the test was carried out. The results showed that the combustion rate increased and the combustion duration decreased by 6% after adding nitromethane. The power performance was enhanced, and the Pmi value was increased by 30%. The combustion stability was enhanced, and the cycle variation rate of the Pmi was reduced to 16.9%. Nitromethane has a significant effect on improving the combustion characteristics of methanol, and the enhancement of the latter was mainly reflected in the ignition phase of the combustion process. This study indicates that exploring the fuel additive that can increase the concentration of OH radical in the reaction is an effective method to improve the micro-space combustion, which will facilitate the development of micro-piston internal combustion engine to supply energy to a micro electro mechanical system.

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32

Amann, C. A. "Evaluating Alternative Internal Combustion Engines: 1950–1975". Journal of Engineering for Gas Turbines and Power 121, n.º 3 (1 de julio de 1999): 540–45. http://dx.doi.org/10.1115/1.2818506.

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GMR (General Motors Research Laboratories, now GM R&D Center) has long sought ways to improve automotive combustion engines. Following World War II, considerable effort was also devoted to evaluating new powerplants that embodied different operating cycles from those of the established spark-ignition and diesel engines. Two internal combustion variants receiving attention during the third quarter of the 20th century were the free-piston diesel and the gas turbine. Research on those two alternatives is reviewed. Because their shortcomings were judged to outweigh their advantages, neither has found commercial application in highway vehicles.

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33

Akash, Bilal, Florian Ion T. Petrescu, Antonio Apicella, John Kaiser Calautit, Filippo Berto, Juan M. Corchado, Ronald B. Bucinell, Raffaella Aversa y Relly Victoria V. Petrescu. "Corrigendum: Yield at Thermal Engines Internal Combustion". American Journal of Engineering and Applied Sciences 12, n.º 1 (1 de enero de 2019): 119. http://dx.doi.org/10.3844/ajeassp.2019.133.

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34

Mansha, M., A. R. Saleemi y Badar M. Ghauri. "Kinetic models of natural gas combustion in an internal combustion engine". Journal of Natural Gas Chemistry 19, n.º 1 (enero de 2010): 6–14. http://dx.doi.org/10.1016/s1003-9953(09)60024-4.

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35

Galiullin, Lenar Ajratovich, Rustam Asgatovich Valiev y Ilnar Ajratovich Galiullin. "Development of Technical Diagnostic System for Internal Combustion Engines". Journal of Computational and Theoretical Nanoscience 16, n.º 11 (1 de noviembre de 2019): 4569–72. http://dx.doi.org/10.1166/jctn.2019.8356.

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This article describes methods of development of technical diagnostic systems for internal combustion engines. The automotive industry plays a leading role in the economy of any state. The history of the development of the global automotive industry is closely linked with the development of many branches of engineering. So, by the beginning of the 20th century, the automobile industry began to consume half of the steel and iron produced, three-quarters of rubber and leather, a third part of nickel and aluminum, and a seventh part of wood and copper. Autobuilding came in first place in terms of production among other branches of engineering, began to have a serious impact on the economic life of states. By the beginning of World War I, the car park on the globe was about 2 million. Of these, 1.3 million were in the USA, 245 thousand in England, 100 thousand in France, 57 thousand in Austria-Hungary, 12 thousand—to Italy, 10 thousand—to the Russia.

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36

Su, De Yuan, Ying Ai Jin, Qing Gao, Xian Da Che y Yun Long Xing. "Review of Stratified Charge Research in Oxygen-Enriched and Nitrogen-Enriched Combustion". Advanced Materials Research 538-541 (junio de 2012): 2457–60. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2457.

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This paper discusses combustion and emissions of internal combustion engine when oxygen-enriched combustion air and nitrogen-enriched combustion air are used. Nitrogen-enriched combustion can reduce the formation of NOx by inhibiting the combustion temperature in cylinder. Engine combustion is mainly subject to components of oxygen and nitrogen in the intake, the former combustion and the latter flame retardant. So we can control the two components during combustion process to re-engineering their component in the intake to the implementation control the combustion and emissions.

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37

Akpobi, John A. y P. Oboh. "Internal Combustion Engines: A Computerized Design Approach". Advanced Materials Research 18-19 (junio de 2007): 423–33. http://dx.doi.org/10.4028/www.scientific.net/amr.18-19.423.

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This paper describes computer-aided-design software which accurately and efficiently designs internal combustion engine (I.C.) parts with the aid of Microsoft Visual Basic Object - oriented programming language. In addition to numerically outputting solutions (design parameters), the software also provides graphical solutions which facilitates easy visualization of trends in the variation of the solutions with important parameters. We then illustrate its accuracy and efficiency with some benchmark examples.

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38

Tikhonenkov, S. M. "Boosting the performance of internal combustion engines". Russian Engineering Research 28, n.º 12 (diciembre de 2008): 1169–72. http://dx.doi.org/10.3103/s1068798x08120046.

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39

Miruašvili, Vladimir, Aleksandr Haribegašvili y Georgij Kuteliâ. "Improving efficiency of internal combustion engine: Perspectives of application free piston engine in agricultural engineering". Poljoprivredna tehnika 47, n.º 3 (2022): 67–78. http://dx.doi.org/10.5937/poljteh2203067m.

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The article discusses various schematic diagrams of a reciprocating internal combustion engine (ICE) and shows their main disadvantages, in particular, low efficiency, which, depending on the type of modern ICE, ranges from 0.25 to 0.5. To increase this indicator, the search for more advanced ICE schemes continues. For this purpose, a new schematic diagram of a free-piston internal combustion engine (FPICE) is proposed, in which power is transferred by a hydraulic drive, as a result, the efficiency increases from 30 to 40%.

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40

Stolbov, M. S. "Thermotropic Two-Zone Model of Fuel Combustion in an Internal Combustion Engine". Russian Engineering Research 39, n.º 11 (noviembre de 2019): 913–19. http://dx.doi.org/10.3103/s1068798x19110170.

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41

Kumar, Pankaj, Matthew Franchek, Karolos Grigoriadis y Vemuri Balakotaiah. "Fundamentals-based low-dimensional combustion modeling of spark-ignited internal combustion engines". AIChE Journal 57, n.º 9 (15 de noviembre de 2010): 2472–92. http://dx.doi.org/10.1002/aic.12447.

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42

Webb, A. "A piston revolution [internal combustion engines]". Engineering Management Journal 12, n.º 1 (2002): 25. http://dx.doi.org/10.1049/em:20020103.

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43

Xi, Wenxiong, Hui Xu, Tianyang Dong, Zhiyong Lin y Jian Liu. "Numerical Investigation of Combustion Mechanism with Multi-Position Injection in a Dual-Mode Combustor". Aerospace 10, n.º 7 (24 de julio de 2023): 656. http://dx.doi.org/10.3390/aerospace10070656.

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To improve the flame propagation, combustion stability, and uniformity of the temperature field, multi-position injection is applied in a dual-mode combustor by controlling heat release in different locations. Using the chemical reaction of the finite rate combustion model and the detailed reaction mechanism of hydrogen combustion as described by Jachimowski, the influence of different multi-position injection patterns in a dual-mode combustor is analyzed. The one-equation Large Eddy Simulation (LES) turbulence model was chosen to define the sublattice turbulent viscous terms in a three-dimensional scramjet model. Based on a combustion chamber, the effect of the injection equivalent ratio (0.35–0.70), the relative position of the nozzle holes, and the injection pressure on the combustion process and flow field characteristics are analyzed with multi-position injection. The combustion efficiency, total pressure recovery coefficients, and pressure distribution under different operation conditions are compared. We observed that the combustion intensity increases and the upstream combustion shock string distance becomes greater with increased equivalent ratios. When the global equivalent ratio of multi-position injection remains unchanged, the arrangement of nozzles with the small injection spacing, i.e., two injection holes arranged face to face on the upper and lower walls, or the setting of multiple injection holes with the same pressure, can effectively increase the stability rate of the combustion flow field. In addition, the combustion efficiency at the outlet and the internal pressure of the combustion chamber in the stable state are also improved, relative to the increased total pressure loss.

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44

Espinoza, Henry, Luís Patiño, Yordy González y Lezama Irving. "A predictive model of natural gas mixture combustion in internal combustion engines". Ingeniería e Investigación 27, n.º 2 (1 de mayo de 2007): 11–17. http://dx.doi.org/10.15446/ing.investig.v27n2.14824.

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This study shows the development of a predictive natural gas mixture combustion model for conventional combustion (ignition) engines. The model was based on resolving two areas; one having unburned combustion mixture and another having combustion products. Energy and matter conservation equations were solved for each crankshaft turn angle for each area. Nonlinear differential equations for each phase’s energy (considering compression, combustion and expansion) were solved by applying the fourth-order Runge-Kutta method. The model also enabled studying different natural gas components’ composition and evaluating combustion in the presence of dry and humid air. Validation results are shown with experimental data, demonstrating the software’s precision and accuracy in the results so produced. The results showed cylinder pressure, unburned and burned mixture temperature, burned mass fraction and combustion reaction heat for the engine being modelled using a natural gas mixture.

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45

Demirbas, A. "Future Fuels for Internal Combustion Engines". Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 32, n.º 14 (enero de 2010): 1273–81. http://dx.doi.org/10.1080/15567030903060317.

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46

Mejía R., Antonio y Luis Lastra E. "INFLUENCIA DE LAS MEZCLAS DIESEL BIODIESEL EN EL COMPORTAMIENTO DE LOS PARÁMETROS EFECTIVOS Y MEDIOAMBIENTALES DE UN MOTOR DE COMBUSTIÓN INTERNA DIESEL DE 6,11 KW". Revista Cientifica TECNIA 27, n.º 1 (4 de enero de 2018): 15. http://dx.doi.org/10.21754/tecnia.v27i1.121.

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Este trabajo de investigación se realizó en el Instituto de Motores de Combustión Interna de la Facultad de Ingeniería Mecánica de la Universidad Nacional de Ingeniería en la ciudad de Lima, con la finalidad de evaluar la influencia de las mezclas Diésel biodiesel B10, B20 y B30 en el comportamiento de los parámetros efectivos y medioambientales de un motor de combustión interna Diésel de 6,11 kW. Los resultados obtenidos con las mezclas Diésel biodiesel y el combustible comercial B5, luego de las mediciones realizadas en el motor, permiten obtener y graficar las características de velocidad y las características de carga del motor utilizado en la investigación, mostrando la variación de los parámetros efectivos y de opacidad, de esta manera permite contrastar las hipótesis establecidas y presentar las respectivas conclusiones. Palabras clave.- Biodiesel, banco de pruebas, poder calorífico, viscosidad, índice de cetano, parámetros efectivos, motor de combustión interna, características de velocidad, características de carga. ABSTRACT This research was conducted at Combustion Engines Institute of the Mechanic Engineering Faculty in National Engineering University of Lima. The aim of this research is to evaluate the influence of Diesel blends biodiesel B10, B20 and B30 in the effective and environmental operating parameters of internal combustion Diesel engine 6.11 kW. The results obtained with the Diesel biodiesel blends and the B5 commercial fuel, after the measurements made in the engine, let us obtain and graph the characteristics of speed and load of the engine used in this research, showing a variation in the effective and opacity parameters so, the hypothesis given can be contrasted and the conclusions can be presented. Keywords.- Biodiesel, testing bench, calorific power, viscosity, cetane index, effective parameters, internal combustion engine, speed characteristics, load characteristics.

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47

Connolly, Francis T. y Andrew E. Yagle. "Modeling and identification of the combustion pressure process in internal combustion engines". Mechanical Systems and Signal Processing 8, n.º 1 (enero de 1994): 1–19. http://dx.doi.org/10.1006/mssp.1994.1001.

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48

Gao, Wenzhi, Zhen Fu, Yong Li, Yuhuai Li y Jiahua Zou. "Progress of Performance, Emission, and Technical Measures of Hydrogen Fuel Internal-Combustion Engines". Energies 15, n.º 19 (9 de octubre de 2022): 7401. http://dx.doi.org/10.3390/en15197401.

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To achieve the goals of low carbon emission and carbon neutrality, some urgent challenges include the development and utilization of low-carbon or zero-carbon internal combustion engine fuels. Hydrogen, as a clean, efficient, and sustainable fuel, has the potential to meet the abovementioned challenges. Thereby, hydrogen internal combustion engines have been attracting attention because of their zero carbon emissions, high thermal efficiency, high reliability, and low cost. In this paper, the opportunities and challenges faced by hydrogen internal-combustion engines were analyzed. The progress of hydrogen internal-combustion engines on the mixture formation, combustion mode, emission reduction, knock formation mechanism, and knock suppression measures were summarized. Moreover, possible technical measures for hydrogen internal-combustion engines to achieve higher efficiency and lower emissions were suggested.

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49

Fyffe, John R., Mark A. Donohue, Maria C. Regalbuto y Chris F. Edwards. "Mixed combustion–electrochemical energy conversion for high-efficiency, transportation-scale engines". International Journal of Engine Research 18, n.º 7 (7 de septiembre de 2016): 701–16. http://dx.doi.org/10.1177/1468087416665936.

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This article discusses an approach to exceeding current peak exergy efficiencies of approximately 50% for transportation-scale engines. A detailed model was developed for an internal combustion engine and a fuel cell, where the internal combustion engine is operated under fuel-rich conditions to produce a hydrogen-rich exhaust gas as a fuel for the fuel cell. The strategy of using combustion and electrochemical energy conversion processes has been shown to reduce reaction-related exergy losses while providing the balance of plant necessary to achieve efficient thermal management. Prior approaches which used internal combustion engines downstream of the fuel cell have shown exergy efficiencies near 70%. The system architecture developed for this article, in addition to achieving exergy efficiencies near 70%, provides further advantages. The internal combustion engine, producing work in addition to generating synthesis gas, enables a quick-start approach to this mixed strategy and the ability to use a range of fuels. Therefore, the proposed architecture supplies a very efficient starting point for the development of a quick-start, hybridized system for transportation-scale applications.

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50

Ostman, Fredrik y Hannu T. Toivonen. "Adaptive Cylinder Balancing of Internal Combustion Engines". IEEE Transactions on Control Systems Technology 19, n.º 4 (julio de 2011): 782–91. http://dx.doi.org/10.1109/tcst.2010.2052925.

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