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Journal articles on the topic 'CFR Engine'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

KOLODZIEJ, Christopher, and Thomas WALLNER. "Combustion characteristics of various fuels during research octane number testing on an instrumented CFR F1/F2 engine." Combustion Engines 171, no. 4 (2017): 164–69. http://dx.doi.org/10.19206/ce-2017-427.

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The Cooperative Fuels Research (CFR) engine is the long-established standard for characterization of fuel knock resistance in spark-ignition internal combustion engines. Despite its measurements of RON and MON being widely used, there is little understanding of what governs the CFR octane rating for fuels of various chemical compositions compared to primary reference fuels (iso-octane and n-heptane). Detailed combustion characteristics were measured on a highly instrumented CFR F1/F2 engine during RON testing of fuels with significantly different chemical composition. The results revealed diff

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2

Kong, S. C., and R. D. Reitz. "Use of Detailed Chemical Kinetics to Study HCCI Engine Combustion With Consideration of Turbulent Mixing Effects." Journal of Engineering for Gas Turbines and Power 124, no. 3 (2002): 702–7. http://dx.doi.org/10.1115/1.1413766.

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Detailed chemical kinetics was used in an engine CFD code to study the combustion process in HCCI engines. The CHEMKIN code was implemented in KIVA such that the chemistry and flow solutions were coupled. The reaction mechanism consists of hundreds of reactions and species and is derived from fundamental flame chemistry. Effects of turbulent mixing on the reaction rates were also considered. The results show that the present KIVA/CHEMKIN model is able to simulate the ignition and combustion process in three different HCCI engines including a CFR engine and two modified heavy-duty diesel engine

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3

George Done, Bogdan, and Ion Copae. "Performances of a Research CFR Octane Rating Unit Engine and Dacia Single Cylinder SI Engine Ignited by a LASER System." E3S Web of Conferences 112 (2019): 01009. http://dx.doi.org/10.1051/e3sconf/201911201009.

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At this time, the severe legislation regarding the level limits of the waste and exhaust gases released by thermal engines and also the necessity of engines efficiency improvement boost the engine research domain to bring in front the use of new technologies that can be used to control the in-cylinder combustion process. Now, the new technologies is represented by LASER spark plug systems which can be successfully used at petrol engines. LASER spark plug technology can have many advantages for engine operation control, an ignition system that could provide improved combustion is the one using

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4

Schubert, P. F., D. R. Sheridan, M. D. Cooper, and A. J. Banchieri. "Sensor-Based Analyzer for Continuous Emission Monitoring in Gas Pipeline Applications." Journal of Engineering for Gas Turbines and Power 120, no. 2 (1998): 317–21. http://dx.doi.org/10.1115/1.2818123.

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Continuous emissions monitoring of gas turbine engines in pipeline service have typically been monitored using either laboratory derived instruments (CEMS), or predicted using data from low cost sensors on the engines and algorithms generated by mapping engine performance (PEMS). A new cost-effective system developed under a program sponsored by the Gas Research Institute (Chicago) combines the advantages of both systems to monitor engine emissions in gas transmission service. This hybrid system is a sensor-based analyzer that uses a sensor array, including a newly developed NOx sensor, to dir

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5

Wibowo, Cahyo Setyo, Bambang Sugiarto, Ardi Zikra, Alva Budi, Try Mulya, and Maymuchar. "The Effect of Gasoline-Bioethanol Blends to The Value of Fuel’s Octane Number." E3S Web of Conferences 67 (2018): 02033. http://dx.doi.org/10.1051/e3sconf/20186702033.

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A fuel gasoline engine classified based is octane number, test for octane number using CFR engine with RON (Research Octane Number) ASTM D 2699 and MON (Motor Octane Number) ASTM D 2700. Bioethanol can booster octane number if blended to gasoline. A fuel to a higher octane can be run at a higher compression ratio without causing detonation or knocking engine. Compression is directly related to thermodynamic efficiency but to blended bioethanol can decrease the heating value of the fuel. The design engine on the market had compression ratio specified and needed octane number minimum specified.

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6

Genchi, Giuseppe, and Emiliano Pipitone. "Octane Rating of Natural Gas-Gasoline Mixtures on CFR Engine." SAE International Journal of Fuels and Lubricants 7, no. 3 (2014): 1041–49. http://dx.doi.org/10.4271/2014-01-9081.

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7

Usai, Andrea. "The Freedom to Conduct a Business in the EU, Its Limitations and Its Role in the European Legal Order: A New Engine for Deeper and Stronger Economic, Social, and Political Integration." German Law Journal 14, no. 9 (2013): 1867–88. http://dx.doi.org/10.1017/s2071832200002534.

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This paper examines the role and importance of the freedom to conduct a business enshrined in Article 16 of the Charter of Fundamental Rights of the European Union (CFR). With the entry into force of the Lisbon Treaty, the CFR became legally binding, gaining the same legal value as the Treaties. It will be argued here that Article 16 CFR, which recognizes the right to economic initiative, can be an important force for European integration by acting as a new engine of European social, economic, and political integration. That said, Article 16 should be read bearing its limitations in mind.

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8

Sierens, R., and S. Verhelst. "Influence of the Injection Parameters on the Efficiency and Power Output of a Hydrogen Fueled Engine." Journal of Engineering for Gas Turbines and Power 125, no. 2 (2003): 444–49. http://dx.doi.org/10.1115/1.1496777.

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The advantages of hydrogen fueled internal combustion engines are well known, certainly concerning the ultra-low noxious emissions (only NOx is to be considered). Disadvantages are the backfire phenomenon and the gaseous state of hydrogen at atmospheric conditions. A complete control of the mixture formation is necessary and therefore a test engine with sequential port injection was chosen. The tests are carried out on a single-cylinder CFR engine with the intention to use the results to optimize a 6 and 8-cylinder engine with multipoint injection. Different positions of the injector against t

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9

Pal, Pinaki, Christopher P. Kolodziej, Seungmok Choi, et al. "Development of a Virtual CFR Engine Model for Knocking Combustion Analysis." SAE International Journal of Engines 11, no. 6 (2018): 1069–82. http://dx.doi.org/10.4271/2018-01-0187.

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10

Rocha, H. L., N. R. Pinto, M. J. Colaço, and A. J. K. Leiroz. "EXPERIMENTAL STUDY OF TERNARY FUEL BLENDS ON AN ASTM-CFR-CETANE ENGINE." Revista de Engenharia Térmica 13, no. 2 (2014): 09. http://dx.doi.org/10.5380/reterm.v13i2.62087.

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This work analyses how ternary blends of biodiesel, anhydrous and hydrous ethanol, and diesel, in different proportions, behave regarding fuel emissions and combustion parameters. The determination of their cetane number, using an ASTM-CFR cetane research engine is also investigated. The base fuels used were 99,9% pure anhydrous ethanol, commercial diesel, which contains 5% of biodiesel in volume, biodiesel from soybean oil, and hydrous ethanol with 7% of water, in volume. The fuel blends werespecified after a careful bibliography research. Five volume fractions of biodiesel (5, 10, 20, 60 and

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11

Pipitone, E., and L. D'Acquisto. "Development of a low-cost piezo film-based knock sensor." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 217, no. 8 (2003): 691–99. http://dx.doi.org/10.1243/09544070360692087.

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It is well known that spark advance is a key parameter in spark ignition engine management. Increasing fuel cost and emission regulation strictness require a higher engine efficiency, which can be improved by an accurate regulation of the spark advance. Under high load conditions, an optimal spark advance choice leads the engine to run next to the knock limit, so the management and control system needs to be equipped with a knock sensor in order to preserve the engine from damage. The authors developed a low-cost knock sensor whose sensing element is a thin washer of polyvinylidine fluoride (P

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12

Done, B. G., and I. Copae. "Research of CFR SI Engine and Dacia single cylinder SI engine equipped with LASER and Classical Spark Plug." IOP Conference Series: Materials Science and Engineering 568 (September 17, 2019): 012111. http://dx.doi.org/10.1088/1757-899x/568/1/012111.

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13

Li, Hailin, and Ghazi A. Karim. "Hydrogen Fueled Spark-Ignition Engines Predictive and Experimental Performance." Journal of Engineering for Gas Turbines and Power 128, no. 1 (2004): 230–36. http://dx.doi.org/10.1115/1.2055987.

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Hydrogen is well recognized as a suitable fuel for spark-ignition engine applications that has many unique attractive features and limitations. It is a fuel that can continue potentially to meet the ever-increasingly stringent regulations for exhaust and greenhouse gas emissions. The application of hydrogen as an engine fuel has been tried over many decades by numerous investigators with varying degrees of success. However, the performance data reported often tend not to display consistent agreement between the various investigators, mainly because of the wide differences in engine type, size,

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14

Nguyen, Vu H., Minh Q. Duong, Kien T. Nguyen, Thin V. Pham, and Phuong X. Pham. "An Extensive Analysis of Biodiesel Blend Combustion Characteristics under a Wide-Range of Thermal Conditions of a Cooperative Fuel Research Engine." Sustainability 12, no. 18 (2020): 7666. http://dx.doi.org/10.3390/su12187666.

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Examining the influence of thermal conditions in the engine cylinder at the start of fuel injection on engine combustion characteristics is critically important. This may help to understand physical and chemical processes occurring in engine cycles and this is relevant to both fossil fuels and alternative fuels like biodiesels. In this study, six different biodiesel–diesel blends (B0, B10, B20, B40, B60 and B100 representing 0, 10, 20, 40, 60 and 100% by volume of biodiesel in the diesel–biodiesel mixtures, respectively) have been successfully tested in a cooperative fuel research (CFR) engine

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15

Rockstroh, Toby, Christopher P. Kolodziej, Mads C. Jespersen, S. Scott Goldsborough, and Thomas Wallner. "Insights into Engine Knock: Comparison of Knock Metrics across Ranges of Intake Temperature and Pressure in the CFR Engine." SAE International Journal of Fuels and Lubricants 11, no. 4 (2018): 545–61. http://dx.doi.org/10.4271/2018-01-0210.

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16

Blin-Simiand, N., R. Rigny, V. Viossat, S. Circan, and K. Sahetchian. "Autoignition of Hydrocarbon/Air Mixtures in a CFR Engine: Experimental and Modeling Study." Combustion Science and Technology 88, no. 5-6 (1993): 329–48. http://dx.doi.org/10.1080/00102209308947243.

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17

Broekaert, Stijn, Thomas De Cuyper, Michel De Paepe, and Sebastian Verhelst. "Evaluation of empirical heat transfer models for HCCI combustion in a CFR engine." Applied Energy 205 (November 2017): 1141–50. http://dx.doi.org/10.1016/j.apenergy.2017.08.100.

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18

Mounaïm-Rousselle, Christine, Pierre Bréquigny, Clément Dumand, and Sébastien Houillé. "Operating Limits for Ammonia Fuel Spark-Ignition Engine." Energies 14, no. 14 (2021): 4141. http://dx.doi.org/10.3390/en14144141.

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The objective of this paper is to provide new data about the possibility of using ammonia as a carbon-free fuel in a spark-ignition engine. A current GDI PSA engine (Compression Ratio 10.5:1) was chosen in order to update the results available in the literature mainly obtained in the CFR engine. Particular attention was paid to determine the lowest possible load limit when the engine is supplied with pure ammonia or a small amount of H2, depending on engine speed, in order to highlight the limitation during cold start conditions. It can be concluded that this engine can run stably in most of t

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19

Done, Bogdan George, Laszlo Barothi, and Ion Copae. "CFR Octane Rating Unit Engine and Dacia Single Cylinder SI Engine with Classical Spark Plug and Laser Ignition: Comparative Findings." Journal of Military Technology 2, no. 2 (2019): 39–42. http://dx.doi.org/10.32754/jmt.2019.2.06.

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20

García, Antonio, Javier Monsalve-Serrano, Rafael Lago Sari, et al. "Development of a fast-virtual CFR engine model and its use on autoignition studies." Fuel Processing Technology 224 (December 2021): 107031. http://dx.doi.org/10.1016/j.fuproc.2021.107031.

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21

Attar, A. A., and G. A. Karim. "Knock Rating of Gaseous Fuels." Journal of Engineering for Gas Turbines and Power 125, no. 2 (2003): 500–504. http://dx.doi.org/10.1115/1.1560707.

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The knock tendency in spark ignition engines of binary mixtures of hydrogen, ethane, propane and n-butane is examined in a CFR engine for a range of mixture composition, compression ratio, spark timing, and equivalence ratio. It is shown that changes in the knock characteristics of binary mixtures of hydrogen with methane are sufficiently different from those of the binary mixtures of the other gaseous fuels with methane that renders the use of the methane number of limited utility. However, binary mixtures of n-butane with methane may offer a better alternative. Small changes in the concentra

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22

Journal, Baghdad Science. "Improvement of Gasoline Octane Number by Using Organic Compounds." Baghdad Science Journal 11, no. 2 (2014): 502–8. http://dx.doi.org/10.21123/bsj.11.2.502-508.

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The toxic lead additives to gasoline are no longer used in many countries around the world. Many other countries are now phasing out the lead in gasoline. Although the lead fuel is still in use in Iraq, several plans are considered to phase out the lead. The use of organic compounds to replace the lead additives in gasoline is considered now as an option in Iraqi refineries. The main objective of this project was preparation of premium gasoline, by blending of gasoline with Alternative additives (alcohol, aromatic) to enhancing octane number of Al-Doura gasoline pool. Improved gasoline was tes

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23

Hadeishi, Daisaku, Jin Kusaka, and Shigeyuki Tanaka. "506 Numerical Analysis of Knock Occurrence in a CFR Engine by Using a Thermodynamic Model." Proceedings of Autumn Conference of Tohoku Branch 2010.46 (2010): 149–50. http://dx.doi.org/10.1299/jsmetohoku.2010.46.149.

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24

Shah, Ashish, Alexander Hoth, Christopher P. Kolodziej, and Toby Rockstroh. "Gasoline fuels properties for multi-mode operation – Observations in a GDI and the CFR engine." Fuel 291 (May 2021): 119680. http://dx.doi.org/10.1016/j.fuel.2020.119680.

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25

Mantilla, J. M., D. A. Garzón, and C. H. Galeano. "COMBUSTION MODEL FOR SPARK IGNITION ENGINES OPERATING ON GASOLINE-ETHANOL BLENDS." Revista de Engenharia Térmica 9, no. 1-2 (2010): 89. http://dx.doi.org/10.5380/reterm.v9i1-2.61938.

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This article presents a phenomenological combustion model using turbulent flame propagation theory developed by Keck and coworkers, 1974. The model was adapted to work with gasoline-ethanol blends, following correlations presented by Bayraktar,2005. New sub-models were introduced for intake valve velocity and combustion efficiency. These allow simulating the effect of compression ratio, spark timing and fuel change. Results show good agreement with the ones in the original work as well as with experimental results in a Cooperative Fuels Research (CFR) engine.

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26

Xiao, Z., N. Ladommatos, and H. Zhao. "The effect of aromatic hydrocarbons and oxygenates on diesel engine emissions." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 214, no. 3 (2000): 307–32. http://dx.doi.org/10.1243/0954407001527448.

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Tests were conducted in a Cooperative Fuel Research (CFR) diesel engine aimed at discerning the effects of fuel aromatic and oxygenate compounds on exhaust emissions. The base fuel was heptane to which were added increasing amounts of monoaromatic toluene and diaromatic methylnaphthalene. Blends of heptane and toluene containing oxygenated compounds (methanol, ethanol, heptanol and diglyme) were also tested. The results indicate that both toluene and methylnaphthalene increase smoke, oxides of nitrogen (NOx) and unburned hydrocarbon (UHC) emissions substantially. The results also showed that i

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27

Done, B. G., and I. Copae. "Comparative research results of CFR Octane Rating Unit Engine and Dacia Single Cylinder SI Engine equipped with classical Spark Plug and LASER Ignition." IOP Conference Series: Materials Science and Engineering 568 (September 17, 2019): 012112. http://dx.doi.org/10.1088/1757-899x/568/1/012112.

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28

Iida, M., M. Hayashi, D. E. Foster, and J. K. Martin. "Characteristics of Homogeneous Charge Compression Ignition (HCCI) Engine Operation for Variations in Compression Ratio, Speed, and Intake Temperature While Using n-Butane as a Fuel." Journal of Engineering for Gas Turbines and Power 125, no. 2 (2003): 472–78. http://dx.doi.org/10.1115/1.1501914.

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In this paper, some basic properties of homogeneous charge compression ignition operation are reported. The effect of inlet temperature, compression ratio and engine speed on the homogeneous charge compression ignition (HCCI) operating ranges were evaluated in a CFR engine using n-butane as a fuel. The minimum and maximum loads for HCCI operation were determined using criteria of coefficient of variation of the indicated mean effective pressure and the derivative of in-cylinder pressure, respectively. Exhaust emissions, particularly hydrocarbons, were measured using a Fourier transform infrare

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29

Morganti, Kai, Tien Mun Foong, Michael Brear, Gabriel Da Silva, Yi Yang, and Frederick Dryer. "Design and Analysis of a Modified CFR Engine for the Octane Rating of Liquefied Petroleum Gases (LPG)." SAE International Journal of Fuels and Lubricants 7, no. 1 (2014): 283–300. http://dx.doi.org/10.4271/2014-01-1474.

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30

Perumal, Marlan, and Gareth Floweday. "An Investigation of Cascading Autoignition and Octane Number using a Multi-zone Model of the CFR Engine." SAE International Journal of Engines 4, no. 1 (2011): 976–97. http://dx.doi.org/10.4271/2011-01-0850.

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31

Thiart, Anja, Gareth Floweday, and Chris Meyer. "A CFD Study of Fuel Evaporation and Related Thermo-fluid Dynamics in the Inlet Manifold, Port and Cylinder of the CFR Octane Engine." SAE International Journal of Fuels and Lubricants 5, no. 3 (2012): 1264–76. http://dx.doi.org/10.4271/2012-01-1715.

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32

Perumal, Marlan, and Gareth Floweday. "ERRATUM: An Investigation of Cascading Autoignition and Octane Number using a Multi-zone Model of the CFR Engine." SAE International Journal of Engines 5, no. 3 (2012): 1533. http://dx.doi.org/10.4271/2011-01-0850err.

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33

Kalaskar, Vickey, Dongil Kang, and André L. Boehman. "Impact of Fuel Composition and Intake Pressure on Lean Autoignition of Surrogate Gasoline Fuels in a CFR Engine." Energy & Fuels 31, no. 10 (2017): 11315–27. http://dx.doi.org/10.1021/acs.energyfuels.7b01157.

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34

Sahetchian, K. A., N. Blin, R. Rigny, A. Seydi, and M. Murat. "The oxidation of n-butane and n-heptane in a CFR engine. Isomerization reactions and delay of autoignition." Combustion and Flame 79, no. 3-4 (1990): 242–49. http://dx.doi.org/10.1016/0010-2180(90)90136-f.

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35

SZWAJA, Stanisław. "Hydrogen resistance to knock combustion in spark ignition internal combustion engines." Combustion Engines 144, no. 1 (2011): 13–19. http://dx.doi.org/10.19206/ce-117118.

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The results of investigations focusing on knock combustion analysis of a hydrogen-fueled engine have been presented in the paper. Knock intensity was determined as the intensity of the in-cylinder combustion pressure pulsations (recorded with a sampling frequency of 100 kHz) and filtered through high-pass filtering with cut-off frequency of 3.5 kHz. The research was conducted on the CFR engine with a variable compression ratio ranging from 6 to 14. The research has shown a rapid increase in pressure pulsations amplitude was observed while the compression ratio was changed from 11 to 12. This w

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36

Shivapuji, Anand M., and S. Dasappa. "Numerical assessment of methane number and critical compression ratio of gaseous alternative fuels: CFR engine quasi dimensional simulation approach." Thermal Science and Engineering Progress 20 (December 2020): 100661. http://dx.doi.org/10.1016/j.tsep.2020.100661.

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37

Zamboni, Giorgio, Silvia Marelli, Giulio Marmorato, and Massimo Capobianco. "An experimental apparatus for testing biodiesels based on a CFR engine—setup and validation with different methyl ester blends." International Journal of Green Energy 13, no. 5 (2015): 481–88. http://dx.doi.org/10.1080/15435075.2014.977439.

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38

Sahetchian, K. A., R. Rigny, and S. Circan. "Identification of the hydroperoxide formed by isomerization reactions during the oxidation of n-heptane in a reactor and CFR engine." Combustion and Flame 85, no. 3-4 (1991): 511–14. http://dx.doi.org/10.1016/0010-2180(91)90153-3.

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39

Waqas, Muhammad Umer, Alexander Hoth, Christopher P. Kolodziej, Toby Rockstroh, Jorge Pulpeiro Gonzalez, and Bengt Johansson. "Detection of low Temperature heat release (LTHR) in the standard Cooperative Fuel Research (CFR) engine in both SI and HCCI combustion modes." Fuel 256 (November 2019): 115745. http://dx.doi.org/10.1016/j.fuel.2019.115745.

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40

Sahetchian, K. A., R. Rigny, N. Bun, and M. Murat. "A model for the action of additives in the formation of hydroperoxides during the delay of autoignition of heptane in a CFR engine." Journal de Chimie Physique 86 (1989): 1979–88. http://dx.doi.org/10.1051/jcp/1989861979.

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41

Sun, Pei Feng, and Yong Ni. "Study on CBR-Based Automobile Engine Intelligent Fault Diagnosis Technique." Key Engineering Materials 460-461 (January 2011): 637–41. http://dx.doi.org/10.4028/www.scientific.net/kem.460-461.637.

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It is difficult to do the fault diagnosis on the modern car engines which have high technology and complex structures. In this study, a case-based-reasoning (CBR) based automobile engine intelligent fault diagnosis system was proposed against this problem. The system’s structure and its mechanism of fault diagnosis were introduced. The key techniques to implement the system were analyzed, including the case establishment, the case search, the case learning and the maintenance of case library. The proposed system gave a new way to establish an efficient automobile engine fault diagnosis system.

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42

Arisanti, Risalia Reni, Citra Indriani, and Siswanto Agus Wilopo. "Kontribusi agen dan faktor penyebab kejadian luar biasa keracunan pangan di Indonesia: kajian sistematis." Berita Kedokteran Masyarakat 34, no. 3 (2018): 99. http://dx.doi.org/10.22146/bkm.33852.

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Purpose: The purpose of this study is to understand burden of foodborne outbreak in Indonesia during 2000 -2015. Method: Systematic review conducted based on publish and unpublished (grey literature) data during 2000 -2015. Publish data from search engine such as Google scholar, open access, repository online university in Indonesia. Grey literature collected from investigation report from selected university (UGM, UI and UNAIR), Ministry of Health, Food and Drug Administration (BPOM) Indonesia. 2 reviewer will select and extract relevant data. Results: During 2000 – 2015 there was 1.176 foodb

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43

Kerns, Donald E., and Paul B. Anderson. "EMS Response to a Major Aircraft Incident: Sioux City, Iowa." Prehospital and Disaster Medicine 5, no. 2 (1990): 159–66. http://dx.doi.org/10.1017/s1049023x00026753.

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On July 19,1989, at 1515h, United Airlines flight 232 with 297 passengers and crew on board, experienced disintegration of the number 2 engine (in the tail section) while at 40-thousand feet above Alta, Iowa (Map 1). The DC-10, en route from Denver to Chicago, was diverted to Sioux City, Iowa's Gateway Airport. The disabled jet made a crash landing on an unused runway, burst apart, and caught fire upon impact. Due to the advanced warning of the potential crash, local crash-fire-rescue (CFR) units from the Air National Guard stationed at Gateway Airport, local and regional paramedic and fire un

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44

Tziourtzioumis, D., L. Demetriades, O. Zogou, and A. M. Stamatelos. "Experimental investigation of the effect of a B70 biodiesel blend on a common-rail passenger car diesel engine." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 223, no. 5 (2009): 685–701. http://dx.doi.org/10.1243/09544070jauto1094.

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The results of engine bench tests of a 2.0l common-rail high-pressure injection passenger car diesel engine fuelled by B70 biodiesel blend are compared with the corresponding results of baseline tests with standard EN 590 diesel fuel. Engine performance and carbon monoxide (CO), total hydrocarbon (THC), and nitrogen oxide (NO x) emissions were measured. Also, indicative particulate sampling was made with a simplified undiluted exhaust sampler. The aim of this study was to understand better how the engine's electronic control unit (ECU) responds to the different fuel qualities. A series of char

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45

Nowak, Paweł. "INVESTIGATION OF THE PHYSICOCHEMICAL PROPERTIES OF A NEW SYNTHETIC LUBRICANT FOR PASSENGER CAR INTERNAL COMBUSTION ENGINES." Tribologia 294, no. 6 (2021): 45–55. http://dx.doi.org/10.5604/01.3001.0014.8335.

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The subject of the article is a synthetic lubricant for the latest generation internal combustion engines, used especially in passenger cars, equipped with both spark ignition engines and compression ignition engines, which is used in particular in passenger cars operating in urban conditions, overcoming relatively short distances, and therefore working usually below the recommended operating temperature of the engine. The developed 5W30 oil maintains excellent rheological properties (fluidity) also before reaching the correct operating temperature of the engine, especially at negative tempera

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46

Rokhmawati, Endang Dian, Irna Farikhah, Ummi Kaltsum, et al. "Numerical Study on the Effect of Mean Pressure and Loop's Radius to the Onset Temperature and Efficiency of Traveling Wave Termoacustic Engine." Automotive Experiences 3, no. 3 (2020): 96–103. http://dx.doi.org/10.31603/ae.v3i3.3881.

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The thermoacoustic engine can be a device to convert waste heat energy in the engine car become useful energy such as for charging battery in car or Air conditioner of the car. This work can be done by experimentally and numerically. There are some parameters that have an impact on the performance of the engine. They are geometry of the engines, working fluid, and mean pressure. The performance of the engine depends on the efficiency and the heating temperature. In the car, waste heat energy is not high enough. Therefore, we need to utilize the low heating temperature to be converted into usef

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Wang, Meng-Hui, and Pi-Chu Wu. "Fault Diagnosis of Car Engine by Using a Novel GA-Based Extension Recognition Method." Mathematical Problems in Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/735485.

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Due to the passenger’s security, the recognized hidden faults in car engines are the most important work for a maintenance engineer, so they can regulate the engines to be safe and improve the reliability of automobile systems. In this paper, we will present a novel fault recognition method based on the genetic algorithm (GA) and the extension theory and also apply this method to the fault recognition of a practical car engine. The proposed recognition method has been tested on the Nissan Cefiro 2.0 engine and has also been compared to other traditional classification methods. Experimental res

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Papaioannou, Eva A., Athanasios T. Vafeidis, Martin F. Quaas, and Jörn O. Schmidt. "The development and use of a spatial database for the determination and characterization of the state of the German Baltic small-scale fishery sector." ICES Journal of Marine Science 69, no. 8 (2012): 1480–90. http://dx.doi.org/10.1093/icesjms/fss096.

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Abstract Papaioannou, E. A., Vafeidis, A. T., Quaas, M. F., and Schmidt, J. O. 2012. The development and use of a spatial database for the determination and characterization of the state of the German Baltic small-scale fishery sector. – ICES Journal of Marine Science, 69: . Although substantial progress has been made in the acquisition and analysis of fishery data, the small-scale fishery (SSF) sector is frequently data deficient, with relevant primary data often being fragmented and incomplete. Also, in contrast to the case of the larger scale sector, a coherent methodological framework for

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Frepoli, Cesare. "An Overview of Westinghouse Realistic Large Break LOCA Evaluation Model." Science and Technology of Nuclear Installations 2008 (2008): 1–15. http://dx.doi.org/10.1155/2008/498737.

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Since the 1988 amendment of the 10 CFR 50.46 rule in 1988, Westinghouse has been developing and applying realistic or best-estimate methods to perform LOCA safety analyses. A realistic analysis requires the execution of various realistic LOCA transient simulations where the effect of both model and input uncertainties are ranged and propagated throughout the transients. The outcome is typically a range of results with associated probabilities. The thermal/hydraulic code is the engine of the methodology but a procedure is developed to assess the code and determine its biases and uncertainties.

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MITIANIEC, Władyslaw, and Konrad BUCZEK. "Modification of four-stroke engine for operation in two-stroke cycle for automotive application." Combustion Engines 162, no. 3 (2015): 3–12. http://dx.doi.org/10.19206/ce-116860.

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The main disadvantages of two-stroke engines such a big fuel consumption and big emission of hydrocarbons or carbon monoxide can be reduced by new proposal of design of two stroke engine based on four stroke engines. The paper describes the operation of high supercharged spark ignition overhead poppet valve two-stroke engine, which enables to achieve higher total efficiency and exhaust gas emission comparable to four-stroke engines. The work of such engines is possible by proper choice of valve timings, geometrical parameters of inlet and outlet ducts and charge pressure. The engine has to be

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