Artykuły w czasopismach: „IC Engine”

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Shankar, Swapnil, Philipp Mösta, Jennifer Barnes, Paul C. Duffell i Daniel Kasen. "Proto-magnetar jets as central engines for broad-lined Type Ic supernovae". Monthly Notices of the Royal Astronomical Society 508, nr 4 (20.10.2021): 5390–401. http://dx.doi.org/10.1093/mnras/stab2964.

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ABSTRACT A subset of Type Ic supernovae (SNe Ic), broad-lined SNe Ic (SNe Ic-bl), show unusually high kinetic energies (∼1052 erg) that cannot be explained by the energy supplied by neutrinos alone. Many SNe Ic-bl have been observed in coincidence with long gamma-ray bursts (GRBs) that suggests a connection between SNe and GRBs. A small fraction of core-collapse supernovae form a rapidly rotating and strongly magnetized protoneutron star (PNS), a proto-magnetar. Jets from such magnetars can provide the high kinetic energies observed in SNe Ic-bl and also provide the connection to GRBs. In this work, we use the jetted outflow produced in a 3D general relativistic magnetohydrodynamic CCSN simulation from a consistently formed proto-magnetar as the central engine for full-star explosion simulations. We extract a range of central engine parameters and find that the extracted engine energy is in the range of 6.231 × 1051−1.725 × 1052 erg, the engine time-scale in the range of 0.479−1.159 s and the engine half-opening angle in the range of ∼9°−19°. Using these as central engines, we perform 2D special relativistic (SR) hydrodynamic (HD) and radiation transfer simulations to calculate the corresponding light curves and spectra. We find that these central engine parameters successfully produce SNe Ic-bl that demonstrates that jets from proto-magnetars can be viable engines for SNe Ic-bl. We also find that only the central engines with smaller opening angles (∼11°) form a GRB implying that GRB formation is likely associated with narrower jet outflows and Ic-bl’s without GRBs may be associated with wider outflows.

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Mat Noh, Nor Amelia Shafikah, Baljit Singh Bhathal Singh, Muhammad Fairuz Remeli i Amandeep Oberoi. "Internal Combustion Engine Exhaust Waste Heat Recovery Using Thermoelectric Generator Heat Exchanger". Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 82, nr 2 (30.04.2021): 15–27. http://dx.doi.org/10.37934/arfmts.82.2.1527.

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Heat engine converts chemical engine available in fuel to useful mechanical energy. One of the most famous heat engines is internal combustion (IC) engine. IC engine plays a pivotal role in transportation and other industrial applications. A lot of waste heat is rejected from a typical IC engine as the conversion efficiency of this type of engine is only about 35-40 %. The waste heat has the potential to be tapped and converted into useful energy. This can help to increase the performance of the IC engine system. This work focused on the conversion of the waste heat energy of the IC engine into electricity by using thermoelectric generator (TEG). The aim of the project was to demonstrate the applicability of TEG to convert waste heat from exhaust to useful electrical energy. Two TEGs were individually tested to attain the electrical characterization and also tested on series and parallel connections. The study showed that the series connection of TEGs has improved and increased voltage generation but parallel connection is more reliable. The system proved that the waste heat recovery using TEGs has tremendous application in IC engine for better and higher efficient engine performance.

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Khan, T. M. Yunus. "A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines". Energies 13, nr 17 (26.08.2020): 4395. http://dx.doi.org/10.3390/en13174395.

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The ever-increasing demand for transport is sustained by internal combustion (IC) engines. The demand for transport energy is large and continuously increasing across the globe. Though there are few alternative options emerging that may eliminate the IC engine, they are in a developing stage, meaning the burden of transportation has to be borne by IC engines until at least the near future. Hence, IC engines continue to be the prime mechanism to sustain transportation in general. However, the scarcity of fossil fuels and its rising prices have forced nations to look for alternate fuels. Biodiesel has been emerged as the replacement of diesel as fuel for diesel engines. The use of biodiesel in the existing diesel engine is not that efficient when it is compared with diesel run engine. Therefore, the biodiesel engine must be suitably improved in its design and developments pertaining to the intake manifold, fuel injection system, combustion chamber and exhaust manifold to get the maximum power output, improved brake thermal efficiency with reduced fuel consumption and exhaust emissions that are compatible with international standards. This paper reviews the efforts put by different researchers in modifying the engine components and systems to develop a diesel engine run on biodiesel for better performance, progressive combustion and improved emissions.

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Samad, Mohd Abdul, Syed Nawazish Mehdi i Syed Khader basha. "A Modified Cylinder Block-IC Engine Experimentation". International Journal of Engineering and Advanced Technology 10, nr 3 (28.02.2021): 6–8. http://dx.doi.org/10.35940/ijeat.b2095.0210321.

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In Internal combustion Engines, the adequate cooling plays vital role for proper functioning and enhanced efficiencies. In the present scenario, the demand for Air cooled Engines with higher powers is increasing and hence necessity for Augmented heat transfer through fins. The present work confined to fins mounted on the cylinder block.In the present work, Internal Combustion Engine test rig is used, which consist of 4S, single cylinder, vertical, air cooled, SI Engine with Instrumentation panel, Throttle control mechanism and Electrical Loading system. The performance test on IC engine is carried out for three various configurations of cylinder blocks i.e., 1. Actual cylinder block 2.Cylinder block with triangular profile fins 3. Cylinder block with perforated triangular profile fins. Performance parameters are evaluated, plotted and compared & eventually conclusions are made.

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Gradjin, Zoran. "IC engine and environment". Vojnotehnicki glasnik 50, nr 2 (2002): 184–94. http://dx.doi.org/10.5937/vojtehg0202184g.

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Naveen Venkatesh, S., G. Chakrapani, S. Babudeva Senapti, K. Annamalai, M. Elangovan, V. Indira, V. Sugumaran i Vetri Selvi Mahamuni. "Misfire Detection in Spark Ignition Engine Using Transfer Learning". Computational Intelligence and Neuroscience 2022 (8.07.2022): 1–13. http://dx.doi.org/10.1155/2022/7606896.

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Misfire detection in an internal combustion engine is an important activity. Any undetected misfire can lead to loss of fuel and power in the automobile. As the fuel cost is more, one cannot afford to waste money because of the misfire. Even if one is ready to spend more money on fuel, the power of the engine comes down; thereby, the vehicle performance falls drastically because of the misfire in IC engines. Hence, researchers paid a lot of attention to detect the misfire in IC engines and rectify it. Drawbacks of conventional diagnostic techniques include the requirement of high level of human intelligence and professional expertise in the field, which made the researchers look for intelligent and automatic diagnostic tools. There are many techniques suggested by researchers to detect the misfire in IC engines. This paper proposes the use of transfer learning technology to detect the misfire in the IC engine. First, the vibration signals were collected from the engine head and plots are made which will work as input to the deep learning algorithms. The deep learning algorithms have the capability to learn from the plots of vibration signals and classify the state of the misfire in the IC engines. In the present work, the pretrained networks such as AlexNet, VGG-16, GoogLeNet, and ResNet-50 are employed to identify the misfire state of the engine. In the pretrained networks, the effect of hyperparameters such as back size, solver, learning rate, and train-test split ratio was studied and the best performing network was suggested for misfire detection.

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Yue, Zongyu, i Haifeng Liu. "Advanced Research on Internal Combustion Engines and Engine Fuels". Energies 16, nr 16 (11.08.2023): 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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Raguman. A, Abdul, Madhankumar D, Ajith B, Mohanasundaram V i Nandhakumar V. "Current trends in Oxygen enriched combustion : Application and scrutiny". International Journal of Engineering & Technology 7, nr 2.8 (19.03.2018): 189. http://dx.doi.org/10.14419/ijet.v7i2.8.10404.

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The populace in the global scenario has drastically increased in the past decades. Due to this situation, the necessity of transportation also escalated which simultaneously raised the pollution levels. Nowadays the populace commonly prefers their individual vehicles rather than public transport system. This made the automotive manufacturers to come up with new technologies and to compensate the stringent norms introduced by several countries. Internal Combustion engine has been serving the world more than a century and plays a vital role in the means of transportation. Many types of research were made to enhance the efficiency of IC engines by the use of alternative fuels, alteration of the intake parameters, stroke variation, usage of alternative materials etc., At present scenario of IC engine, the efficiency ranges between 35 – 50 % based on the technology used. If more efficient IC engines are used it would meet the demand of depleting fossil fuels. Such engines may prevent the demise of fossil fuels. Thus our project deals with the prospect to discuss the phenomenal changes and effects occurring on IC engine when the working fluid is enriched oxygen.

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Kumar, Jatinder. "Reliability Centred Planning, Mapping & Analysis of Electronics and Electrical Systems in Electric Mobility". Journal of Advanced Research in Manufacturing, Material Science & Metallurgical Engineering 08, nr 01 (19.04.2021): 14–17. http://dx.doi.org/10.24321/2456.429x.202101.

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Reliability of a product is very critical aspect for a new product to create a success story in present age. This paper is focused on automobile industry especially in electric mobility domain. IC engines are in this market from last 100+ years and too much improvement work has been done in IC engine domain. First car powered by IC engine was made in 1885 by Karl Benzand from 1885 to present the IC engine mobility have undergone numerous process improvements and established them as a reliable mode of mobility. There are many process models available online which can be used to improve the reliability of IC engine powered mobility. In case of electric mobility there is major integration of three different domains electrical, mechanical & electronics. Electrical mobility is just 2 decade old and major developments happened in this space in last one decade. The major challenge in electric mobility domain is the change content, in IC engine mobility the if we compare one car model to another car model the change content is <25% but in case of electric mobility vs IC engine mobility the change content is >75%. Now the challenge is to manage & effectively synchronize this high change content moreover to establish the product reliability as equal or better than existing IC engine powered mobility. There are various reliability improvement models are available in electrical, mechanical and electronics domain. There is a need to integrate the reliability improvement models of electrical and electronics domain with automobile (mechanical domain) keeping automobile reliability improvement models as masters of process so that to establish product reliability in electric mobility. The overall aim of this dissertation work is to develop a reliability engineering model to establish the reliability and dependability of electric mobility in future.

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CHŁOPEK, Zdzisław, Jacek BIEDRZYCKI, Jakub LASOCKI i Piotr WÓJCIK. "Comparative examination of pollutant emission from an automotive internal combustion engine with the use of vehicle driving tests". Combustion Engines 164, nr 1 (1.02.2016): 56–64. http://dx.doi.org/10.19206/ce-116490.

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The pollutant emission from automotive internal combustion (IC) engines is highly susceptible to engine operation states determined by vehicle velocity processes. The article presents results of comparative examinations of specific distance pollutant emission characteristics determined from various vehicle driving tests. The specific distance pollutant emission was determined using vehicle type-approval and special tests as well as tests developed at the Automotive Industry Institute (PIMOT), treated as realizations of the stochastic process of vehicle velocity. The research results confirmed high susceptibility of the IC engine pollutant emission to the engine operation states, which endorses the usefulness of treating the conditions of operation of automotive engines as stochastic processes.

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Ahmedi, Ranaji Arib Hafiz Ayyub Akbar. "Forced Induction Technologies in an IC Engine: A Review". International Journal for Research in Applied Science and Engineering Technology 9, nr VI (25.06.2021): 2766–70. http://dx.doi.org/10.22214/ijraset.2021.35582.

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This study has been undertaken to show the performance enhancement of engines using different Forced induction technologies. Forced induction technology like turbocharging and supercharging can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse emission standards are projected to be far more stringent globally, the use of a Forced induction engine in passenger cars and light-duty trucks has become an inevitable trend within the automotive industry. A turbocharger system can effectively improve the power and torque of an engine, but turbo hysteresis exists. A mechanical supercharging system can boost at low speed, but the efficiency is lower. An electric supercharger can effectively improve the intake air at the early stage of accelerated working conditions, however, an electric supercharger will consume the engine power. The addition of Forced induction technologies to an IC engine helps with the scope of downsizing it. This review brings forward all the aspects of Forced induction technologies

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Chen, Lei, Hong Jun Ni, De Qin She i Yin Nan Yuan. "Current Research of Biodiesel Used on IC Engine and Improved Measures of Emissions". Advanced Materials Research 887-888 (luty 2014): 473–78. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.473.

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The emission mechanism of biodiesel used on IC engine is analyzed, as well as the summary of the research of domestic and abroad situation about biodiesel used on IC engine. The improved measures, which is under the premise of not affecting power performance and economic efficiency of IC engine, combining the emission process of IC engine was presented, it needs some measures to improve the quality of biodiesel and the system of IC engine to control the emission of the harmful substances, in this way the problem of energy shortage and environmental pollution can be ameliorated.

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Doric, Jovan, i Ivan Klinar. "Efficiency of a new internal combustion engine concept with variable piston motion". Thermal Science 18, nr 1 (2014): 113–27. http://dx.doi.org/10.2298/tsci110923020d.

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This paper presents simulation of working process in a new IC engine concept. The main feature of this new IC engine concept is the realization of variable movement of the piston. With this unconventional piston movement it is easy to provide variable compression ratio, variable displacement and combustion during constant volume. These advantages over standard piston mechanism are achieved through synthesis of the two pairs of non-circular gears. Presented mechanism is designed to obtain a specific motion law which provides better fuel consumption of IC engines. For this paper Ricardo/WAVE software was used, which provides a fully integrated treatment of time-dependent fluid dynamics and thermodynamics by means of onedimensional formulation. The results obtained herein include the efficiency characteristic of this new heat engine concept. The results show that combustion during constant volume, variable compression ratio and variable displacement have significant impact on improvement of fuel consumption.

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Masoničić, Z., I. Grujić, A. Davinić, S. Savić i R. Pešić. "Numerical analysis of intake port modification onto fluid flow pattern and flame propagation in particular combustion chamber". IOP Conference Series: Materials Science and Engineering 1271, nr 1 (1.12.2022): 012007. http://dx.doi.org/10.1088/1757-899x/1271/1/012007.

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Abstract It is known for a long time that inlet port geometry has a great influence onto fluid flow pattern and flame propagation in spark ignition IC engines. In this paper only the initial results of the very complex study on the effects that proposed inlet port modification has onto the in-cylinder flow processes including the combustion stage, in particular. The study mentioned below incorporates state of the art multidimensional numerical modelling of reactive flow in the inlet port and combustion chamber geometry layout with moving boundaries of spark ignition IC engine with two valves. The main objective of this study is to investigate the possibilities for improvement the IC engine output characteristics through the inlet port modifications. Bearing in mind that flame propagation through unburnt mixture of spark ignition IC engine is primarily controlled by dint of turbulence diffusion, it is of prime importance for engine optimization to correctly identify the influence of certain types of organized flows onto the fluid flow pattern and flame propagation. The efforts for improvement have to be aimed on the type of organized flow or eventually their combination that is of prime importance for further development of the in-cylinder processes and combustion stage.

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Kim, Yong Wha, Giorgio Rizzoni i Yue-Yun Wang. "Design of An IC Engine Torque Estimator Using Unknown Input Observer". Journal of Dynamic Systems, Measurement, and Control 121, nr 3 (1.09.1999): 487–95. http://dx.doi.org/10.1115/1.2802500.

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The torque produced by each combustion in an engine is one of the most important indices tied to internal combustion engine performance. In this paper, an approach is investigated to estimate engine torque. Instead of employing expensive and delicate combustion pressure sensors to directly measure indicated pressure in each cylinder, unknown input observers are exploited to estimate cylinder indicated torque using one or more low-cost measurements of crankshaft angular position. Necessary and sufficient conditions for the existence of such torque estimators for multi-cylinder engines are presented in the paper; these include the number of angular position sensors required and their suggested placement. Model reduction issues and the number of measurements required to obtain an acceptable estimate are also considered. The approach is applied to a six-cylinder industrial diesel engine.

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CICHY, Marian, Jacek KROPIWNICKI i Sławomir MAKOWSKI. "A model of the IC engine in the form of the bond graph (BG)". Combustion Engines 119, nr 2 (1.11.2004): 40–47. http://dx.doi.org/10.19206/ce-117417.

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Grounds for the use of the bond graph method in the modeling of internal combustion (IC) engines, which are energy sources in systems consisting of different physical nature elements have been presented. The model of hybrid vehicle, as an example of such system, has been presented. Examples of definitions of the main engine parameters, which follow the established BG convention have been given. A proposal of formalization of the IC engine characteristics, which follows the selected method of modeling, has been presented as well as an analytic form of the characteristic as the multidimensional vector function. Example of the engine characteristic approximation with the use of the “Spline” functions and author’s computer programs has been given.

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Beresnev, Alex, i Max Beresnev. "Vibroacoustic Method of IC Engine Diagnostics". SAE International Journal of Engines 7, nr 1 (1.04.2014): 1–5. http://dx.doi.org/10.4271/2014-01-0282.

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O'Reilly, P., S. Thompson i C. Gong. "Development of an IC Engine Simulator". Measurement and Control 26, nr 10 (grudzień 1993): 302–6. http://dx.doi.org/10.1177/002029409302601004.

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After demonstrating the need for real-time simulation, it is shown that a transputer-based system can be used to mimic the functional elements of an analogue computer. This analogue approach to the modelling of dynamical systems, combined with the transputer's inherent digital mode of operation, results in a low-cost quasihybrid computer. In particular, it is shown how the quasi-hybrid computer is used to simulate an internal combustion (IC) engine model.

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Sahamijoo, Amirzubir, Farzin Piltan, Shahnaz Tayebihaghighi i Nasrib Sulaiman. "Functional-Based Auto-Tuned IC Engine". International Journal of u- and e- Service, Science and Technology 9, nr 12 (31.12.2016): 53–68. http://dx.doi.org/10.14257/ijunesst.2016.9.12.05.

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Durst, F., i H. Krebs. "Adaptive optics for IC-engine measurements". Experiments in Fluids 4, nr 4 (1986): 232–40. http://dx.doi.org/10.1007/bf00717819.

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Northam, G. B., i H. K. Rivers. "IC Engine Applications of Carbon-Carbon". Advanced Engineering Materials 2, nr 9 (wrzesień 2000): 583–86. http://dx.doi.org/10.1002/1527-2648(200009)2:9<583::aid-adem583>3.0.co;2-a.

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TUTAK, Wojciech, i Arkadiusz JAMROZIK. "Modelling of the thermal cycle of a gas engine using AVL FIRE Software". Combustion Engines 141, nr 2 (1.05.2010): 105–13. http://dx.doi.org/10.19206/ce-117152.

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Paper presents results of modelling gas engine thermal cycle using AVL FIRE and KIVA 3V software. There are described three combustion models used in software. KIVA and FIRE software are used in Institute of Internal Combustion Engines and Control Engineering for analysis of thermal cycle of IC engines. FIRE software gives many possibilities with many combustion models. All used combustion models are dependent on turbulence of flow field before ignition. Comparison of modelling results of thermal cycle of IC engine is presented in paper. Pressure, temperature, heat release and turbulence parameters variations in function of crank angle as well as spatial distribution of above mentioned quantities at selected crank angles were determined.

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Albert K. Arkoh, Esther B. Kyere i Isaac Edunyah. "Comparative analysis of engine running performance with and without thermostat". International Journal of Science and Research Archive 4, nr 1 (30.11.2021): 047–53. http://dx.doi.org/10.30574/ijsra.2021.4.1.0171.

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The rate of removal of internal combustion (IC) engine thermostat when engines are imported to Ghana and other part of African continent is alarming. Such phenomenon calls for an experiment to compare the performance of IC engines imported here in Ghana running with and without engine thermostat. The analysis was done by determine engine performance characteristic such as engine torque, indicated power (Ip), brake power (bp), frictional power (fp), fuel consumption, exhaust gas temperature (EGT) as well as exhaust emission at engine speed of 1500 rpm for engine running with thermostat (WT) and without thermostat (WOT). Descriptive statistics and analysis of variance (ANOVA) were done using GenStat software (VSN International, 2021). Statistical significance was carried out at p≤0.05. The best fuel mean value of 103 ml was recorded for engine condition WT at EGT of 283.2 °C while fuel consumed for engine condition WOT was 170 ml at EGT of 155.4 °C. The recorded mean exhaust emission gases for Ex, O2, CO, H2S were 13.2%, 16.2%, 1000 ppm and 35.2 ppm and 0%, 18.38%, 393.2 ppm and 0.4 ppm for engine condition WOT and WT respectively. There was significant difference (p≤0.05) in mean values of EGT, Fuel consumption and exhaust emissions for engine condition WOT with the exception of O2. The removal of engine thermostat affect engine working temperature which result in incomplete combustion, high fuel consumption and high exhaust emissions.

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Koszałka, Grzegorz, i Andrzej Niewczas. "Prediction of IC Engine Power System Durability with the Use of Ring Pack Model". Journal of Konbin 13, nr 1 (1.01.2010): 299–310. http://dx.doi.org/10.2478/v10040-008-0156-x.

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Prediction of IC Engine Power System Durability with the Use of Ring Pack ModelThe paper presents the new method of engine life prediction, which bases on the results of wear measurements taken on an investigated engine and simulations carried out with the use of the analytical model of ring pack of the engine. In the contrary to traditional methods the proposed method does not require the prior knowledge of the limit wear value, which is essential for the prediction, however its reliable establishing for new engines is difficult. In the presented method its value is determined with the use of the ring pack model. The example of durability calculation for an automotive diesel engine is also presented.

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Robinson, K., M. Wilson, M. J. Leathard i J. G. Hawley. "Computational modelling of convective heat transfer in a simulated engine cooling gallery". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 221, nr 9 (1.09.2007): 1147–57. http://dx.doi.org/10.1243/09544070jauto450.

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Experimental data from internal combustion (IC) engines suggests that the use of proprietary computational fluid dynamics (CFD) codes for the prediction of coolant-side heat transfer within IC engine coolant jackets often results in underprediction of the convective heat transfer coefficient. An experimental and computational study, based on a coolant gallery simulator rig designed specifically to reproduce realistic IC engine operating conditions, has been conducted to explore this issue. It is shown that the standard ‘wall function’ approach normally used in CFD models to model near-wall conditions does not adequately represent some features of the flow that are relevant in convective heat transfer. Alternative modelling approaches are explored to account for these shortcomings and an empirical approach is shown to be successful; however, the methodology is not easily transferable to other situations.

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Hu, Zhemin, Ramin Tafazzoli Mehrjardi, Lin Lai i Mehrdad Ehsani. "Optimal Hybridization of Conventional ICE Vehicles". Eng 2, nr 4 (12.11.2021): 592–607. http://dx.doi.org/10.3390/eng2040037.

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Most commercially available hybrid electric vehicle (HEV) drivetrains are made of small internal combustion (IC) engines and large electric drives to improve fuel economy. They usually have higher cost than the conventional IC-engine-based vehicles because of the high costs of the electric drives. This paper proposes a hybridized powertrain composed of the original full-size engine of the vehicle and a universally optimum size parallel electric drive. The dynamic programming (DP) algorithm was used to obtain the sensitivity of the maximum miles per gallon (MPG) values versus the power rating of the electric drive. This sensitivity was then analyzed to determine the optimal window of the electric drive power ratings. This was proven to be universal for all passenger cars of various masses and engine powers. The fuel economy and vehicle performance of this HEV was compared with those of the 2019 Toyota Corolla, a conventional IC-engine-based vehicle, and the 2019 Toyota Prius, a commercially available HEV. The results showed that the proposed universally optimized HEV powertrain achieved better fuel economy and vehicle performance than both the original ICE and HEV vehicles, at low additional vehicle cost.

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Kanna, Rajesh, i Manikandan Saravana. "Intelligent Vision Inspection System for IC Engine Head: An ANN Approach". Advanced Materials Research 479-481 (luty 2012): 2242–45. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.2242.

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A machine vision system based on Artificial Neural Network (ANN) for inspection of IC Engine block was developed to identify the misalignment and improper diminishing of holes in the IC Engine block. The developed machine vision and ANN module is compared with the commercial MATLAB® software and found results were satisfactory. This work is broadly divided into four stages, namely Intelligent inspection module, Machine Vision module, ANN module and Expert system module. A system with a camera was used to capture the various segments of head of the IC Engine block. The captured bitmap format image of IC Engine block has to be filtered to remove the noises present while capturing and the size is also altered using SPIHT method to an acceptable size and will be given as input to ANN. Generalized ANN with Back-propagation algorithm was used to inspect the IC Engine block. ANN has to be trained to provide the inspected report.

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Izadi Najafabadi, Mohammad, i Nuraini Abdul Aziz. "Homogeneous Charge Compression Ignition Combustion: Challenges and Proposed Solutions". Journal of Combustion 2013 (2013): 1–14. http://dx.doi.org/10.1155/2013/783789.

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Engine and car manufacturers are experiencing the demand concerning fuel efficiency and low emissions from both consumers and governments. Homogeneous charge compression ignition (HCCI) is an alternative combustion technology that is cleaner and more efficient than the other types of combustion. Although the thermal efficiency andNOxemission of HCCI engine are greater in comparison with traditional engines, HCCI combustion has several main difficulties such as controlling of ignition timing, limited power output, and weak cold-start capability. In this study a literature review on HCCI engine has been performed and HCCI challenges and proposed solutions have been investigated from the point view ofIgnition Timingthat is the main problem of this engine. HCCI challenges are investigated by many IC engine researchers during the last decade, but practical solutions have not been presented for a fully HCCI engine. Some of the solutions are slow response time and some of them are technically difficult to implement. So it seems that fully HCCI engine needs more investigation to meet its mass-production and the future research and application should be considered as part of an effort to achieve low-temperature combustion in a wide range of operating conditions in an IC engine.

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Mahesh, G., Hiregoudar Yerrennagoudar, R. H. M. Somanath Swamy i S. Sharth Kumar. "Emission characteristics of modified inlet poppet valve". Journal of Physics: Conference Series 2054, nr 1 (1.10.2021): 012009. http://dx.doi.org/10.1088/1742-6596/2054/1/012009.

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Abstract In the case of a diesel engine, air is very important for increasing and decreasing engine parameters. On IC engines, air enters through an inlet valve passage, which is more critical. This is a promising combustion strategy for achieving homogeneity that combines the benefits of both SI and CI engines. Turbulence must be created in engines to achieve homogeneity, and as a result, swirl flow will be activated in the ignition chamber. In light of the stream properties of air streaming in different structures of the CI engine’s air inlet channel, many types are available to create swirl flow for enhancing engine efficiency and lowering emissions. The advantages of an HCCI engine is that it produces low NOx emissions by burning a lean mixture of charge. Working in cylinder with emission in exhaust gas are HC, CO, CO2 and Nox of CI engine, this is based on chamber pressure, temperature, loss of heat transfer on chamber surfaces, and working in cylinder with HC, CO, CO2 and Nox of CI engine. Changes to the inlet route must be performed to create turbulent conditions in order to improve IC engine characteristics. Turbulent will improve the uniformity of the air/fuel mixture at all ignition chamber entry points. This research is aimed at lowering emissions by modifying the inlet poppet valve of a four-stroke single-cylinder diesel engine. For modified inlet poppet valves of HC, CO for modified (masking) inlet poppet valve (4M), and CO2 for modified (masking) inlet poppet valve (4M), emission levels are lowered (2M).

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Guo, Xiao Ping, Wei Zheng i Yi Chao Wu. "The Application of VB Matlab and AutoCAD in IC Engine Optimization Design". Applied Mechanics and Materials 543-547 (marzec 2014): 1951–54. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.1951.

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Estimating the advantages and disadvantages of Matlab/Simulink, Visual Basic (VB) and AutoCAD software, the model of the working process of internal combustion (IC) engine was built based on Matlab/Simulink, and the drawing programs for engine structure were written with the parametric design language AutoLISP. A user-friendly VB interface of inputting parameter was established, realizing VB coupled with AutoCAD and Matlab/Simulink software. Calling the AutoLISP drawing program nested in the AutoCAD and Matlab/Simulink software via VB, integration of the simulation and analysis of the engine and the CAD drawing of its body can be achieved. Its more efficient to analyze the performance and optimize the structure parameters of engines.

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Chen, Jian, Robert Randall, Bart Peeters, Wim Desmet i Herman Van der Auweraer. "Artificial Neural Network Based Fault Diagnosis of IC Engines". Key Engineering Materials 518 (lipiec 2012): 47–56. http://dx.doi.org/10.4028/www.scientific.net/kem.518.47.

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Fault diagnosis is important to avoid unforeseen failures of IC engines, but normally requires an expert to interpret analysis results. Artificial Neural Networks are potential tools for the automated fault diagnosis of IC engines, as they can learn the patterns corresponding to various faults. Most engine faults can be classified into two categories: combustion faults and mechanical faults. Misfire is a typical combustion fault; piston slap and big end bearing knock are common mechanical faults. The automated diagnostic system proposed in this paper has three main stages, each stage including three neural networks. The first stage is the fault detection stage, where the neural networks detect whether there are faults in the engine and if so which kind. In the second stage, based on the detection results, the severity of the faults was identified. In the third stage, the neural networks localize which cylinder has a fault. The critical thing for a neural network is its input feature vector, and a previous study had indicated a number of features that should differentiate between the different faults and their location, based on advanced signal processing of the vibration signals measured for different normal and fault conditions. In this study, an advanced feature selection technology was employed to select the significant features as the inputs to networks. The input vectors were separated into two groups, one for training the network, and the other for its validation. Finally it has been demonstrated that the neural network based system can automatically differentiate and diagnose a number of engine faults, including location and severity.

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Grujic, Ivan, Jovan Doric, Oday Abdullah, Nadica Stojanovic i Aleksandar Davinic. "The influence of the hydrogen injection timing on the IC engine working cycle". Thermal Science, nr 00 (2020): 346. http://dx.doi.org/10.2298/tsci190816346g.

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From an ecological aspect, the hydrogen has all properties to be a very good fuel for IC engines. However the high combustion speed, as well as the possibility of backfire, is inconvenient properties of port injection. In this paper, the influence of the injection timing on the IC engine working cycle parameters (pressure and temperature) was investigated deeply. The investigation, of the injection timing influence on the IC engine working cycle parameters, was performed numerically by application of ANSYS software. It was observed the geometry of the real engine with added pre chamber, in order of layer mixture formation and pressure damping, because of high combustion speed. The results are presented for four cases with different injection timing and the same spark timing. By earlier injection, the time for mixing rise as well as the possibility of homogenization and uniform mixture creation, in pre chamber and cylinder. This claim it is confirmed on the basis of obtaining pressure and pressure rise gradient, which are growing with earlier injection, because of hydrogen combustion characteristics in stoichiometric mixture. The higher pressures as well as the surface under the diagram are positive from the aspect of the engine efficiency. However, with the earlier injection, the values of the pressure rise gradient are higher than for the classic diesel engine. This means that this phenomena can cause brutal engine work from the aspect of mechanical stresses. However the value of the maximum pressure is smaller than this in a diesel engine, this is due to added pre chamber, which has decreased the compression ratio.

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Kumar, K. M., P. Venkateswaran i P. Suresh. "Effective Fuel Consumption by Improving Cooling Water Flow Rate in IC Engine". Applied Mechanics and Materials 812 (listopad 2015): 112–17. http://dx.doi.org/10.4028/www.scientific.net/amm.812.112.

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The coolant (water) pump assumes an important role of cooling system in IC engines. With upgrading of the engine power by turbocharging and turbo inter cooling, the water pump capacity needs to be increased corresponding to the power. This capacity enhancement has to be achieved without calling for a major change in the existing water pump, envelop and related fitment details. This requires a clear understanding of centrifugal pump for its performance parameter. One such engine is upgraded by turbocharging from 195PS to 240PS @2200 rpm. Improving water pump flow by changing the impeller dimensions, impeller casing, increase the suction, delivery pipe diameter had been done. Validation of the water pump in its actual engine installation was taken up as a part of the research work. Flow rate comparison of the new pump with the existing pump was made and the results were analyzed. The new water pump gives better flow rates for the engine speeds up to1800 rpm, beyond which the flow rate is slightly lesser than the existing pump.

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Y, Basava Raj. "Power Generation from IC Engine Exhaust Gases". International Journal for Research in Applied Science and Engineering Technology 6, nr 3 (31.03.2018): 3390–94. http://dx.doi.org/10.22214/ijraset.2018.3717.

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Griaznov, V., N. Trigui, H. Affes i D. Smith. "Cfd Based Shape Optimization of Ic Engine". Oil & Gas Science and Technology 54, nr 2 (marzec 1999): 297–307. http://dx.doi.org/10.2516/ogst:1999029.

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Farkas, Ferenc, i Tamás Molnár. "Using of Bioethanol Fuels in IC Engine". Analecta Technica Szegedinensia 10, nr 1 (15.01.2016): 71–75. http://dx.doi.org/10.14232/analecta.2016.1.71-75.

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Renewables - excluding large hydro accounted for 48% - increased to 15.2% of world cumulative generation capacity in 2014, from 13.8% in 2013. In the EU, the European Parliament approved a reform of the 2020 biofuels target. The new version of the Renewable Energy Directive (RED) distributes the 10% cal. biofuels target into a share for crop-based biofuel (limited at 7% cal.) with the rest to be met with another biofuels and renewable electricity containing multiple counting possibilities. Merely 2% of the EU’s fuel consumption can be covered by its own researches, which looks good pretend a strong dependence on the oil exporting countries. The implementations of biogenic fuels produced from fast growing plant is continuously gaining in importance with regard to economic and environmental effects. Generally they are not offered in their pure form but just as blend components to conventional fuels. Their mixtures can bring about fundamental feature improvements. Ethanol fuel output in 2015 reached a peak high helped by rising gasoline demand in the US. Besides, the changes in the fuel taxation in Brazil and an increase in the minimum blending ratio also pushed along the ethanol fuel demand. The weaker euro and low grain prices on the back of a record wheat crop turned into a considerable growth in output in the EU. Disregard the stimulating developments on the legislative side, it must also be confessed that the decreasing crude oil prices took their customs on the 2015 biofuel markets. For ethanol fuel, more growth could theoretically arrive from an extending of E-10 in EU member states. Unnecessary to discuss that an outlook for a post-2020 biofuels target at the EU level does not valid.

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rahimi, Hadi, Barat Ghobadian, Talal Yusaf, Gholamhasan Najafi i Mahdi Khatamifar. "Diesterol: An environment-friendly IC engine fuel". Renewable Energy 34, nr 1 (styczeń 2009): 335–42. http://dx.doi.org/10.1016/j.renene.2008.04.031.

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Raj, M. Naveen, C. Sairam i J. Abdullah. "ANALYSIS ON IC ENGINE PERFORMANCE USING CFD". Advances and Applications in Fluid Mechanics 19, nr 4 (26.12.2016): 829–36. http://dx.doi.org/10.17654/fm019040829.

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Modi, Ravi S., i Prof Maulik A. Modi. "IC Engine Performance Using Ceramic Coated Piston". IOSR Journal of Mechanical and Civil Engineering 14, nr 02 (kwiecień 2017): 130–37. http://dx.doi.org/10.9790/1684-140204130137.

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Kamanna, Balbheem, Bibin Jose, Ajay Shamrao Shedage, Sagar Ganpat Ambekar, Rajesh Somnath Shinde i Sagar Landge. "Thermal Barrier Coating on IC Engine Piston to Improve Engine Efficiency". Global Journal of Enterprise Information System 9, nr 1 (5.05.2017): 47. http://dx.doi.org/10.18311/gjeis/2017/15864.

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The piston is considered as most important part of I.C engine. High temperature produced in an I.C engine may contribute to high thermal stresses. Without appropriate heat transfer mechanism, the piston crown would operate ineffectively which reduce life cycle of piston and hence mechanical efficiency of engine. The literature survey shows that ideal piston consumes heat produced by burnt gases resulting in decrease of Engine overall Efficiency. In this project work an attempt is made to redesign piston crown using TBC on piston surface and to study its Performance. A 150 cc engine is considered and TBC material with different thickness is coated on the piston. 3D modeling of the piston geometry is done 3D designing software Solidworks2015. Finite Element analysis is used to calculate temperature and heat flux distribution on piston crown. The result shows TBC as a coating on piston crown surface reduces the heat transfer rate within the piston and that will results in increase of engine efficiency. Results also show that temperature and heat flux decreases with increase in coating thickness of YSZ.

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Rajendran, S., K. Ganesan, K. Sakthivel, SM Murugesan i T. Paramaguru. "Experiment and Investigation in Reducing Emission from an IC Engine by using Inlet Helical Roller". Journal of University of Shanghai for Science and Technology 23, nr 10 (9.10.2021): 318–26. http://dx.doi.org/10.51201/jusst/21/10725.

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This research paper reports that in-cylinder flow formation in a combustion engine has a major influence on the combustion, emission and performance characteristics. Air and fuel enters the combustion chamber of an engine throughout the intake manifold with high velocity. So, it introduces a helical roller in the path of inlet stream of mixture. It achieved the swirl by using a component that could be easily integrated into any existing engines at low engine speed. The performance of the engine increases and completes the combustion, leads to reduced emissions and small change in volumetric efficiency. It is also proved that increased swirl movement introduces helical roller that helps the flame spread which used into constant heat transfer rate. This suggests to a new combustion technique that should be developed to yield improved primary combustion processes in-side the engine with significantly reduced exhaust gas emissions.

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A, Suryaprakash, Kumaravel K, Kulandaivel D i Ramesh K. "Study and Performance Characteristics of Gasoline Direct Injection Engine Using Alternative Fuels". International Journal for Research in Applied Science and Engineering Technology 11, nr 1 (31.01.2023): 1062–65. http://dx.doi.org/10.22214/ijraset.2023.48746.

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Abstract: Biogas is the one of the best alternative fuel for IC engines. However some improvements and different techniques are still needed. In this research biogas with petrol fuelled Gasoline Direct Injection (GDI) engine performance was to be studied. The current study shows that biogas with petrol using GDI engine, particularly beneficial to reach interesting conversion efficiencies. It allows a significant boost in energy conversion from biogas compared to existing system.

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Beccari, Stefano, i Emiliano Pipitone. "A New Simple Function for Combustion and Cyclic Variation Modeling in Supercharged Spark Ignition Engines". Energies 15, nr 10 (21.05.2022): 3796. http://dx.doi.org/10.3390/en15103796.

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Research in the field of Internal Combustion (IC) engines focuses on the drastic reduction of both pollutant and greenhouse gas emissions. A promising alternative to gasoline and diesel fuel is represented by the use of gaseous fuels, above all green hydrogen but also Natural Gas (NG). In previous works, the authors investigated the performance, efficiency, and emissions of a supercharged Spark Ignition (SI) engine fueled with mixtures of gasoline and natural gas; a detailed research involving the combustion process of this kind of fuel mixture has been previously performed and a lot of experimental data have been collected. Combustion modeling is a fundamental tool in the design and optimization process of an IC engine. A simple way to simulate the combustion evolution is to implement a mathematical function that reproduces the mass fraction burned (MFB) profile; the most used for this purpose is the Wiebe function. In a previous work, the authors proposed an innovative mathematical model, the Hill function, that allowed a better interpolation of experimental MFB profiles when compared to the Wiebe function. In the research work presented here, both the traditional Wiebe and the innovative Hill function have been calibrated using experimental MFB profiles obtained from a supercharged SI engine fueled with mixtures of gasoline and natural gas in different proportions; the two calibrated functions have been implemented in a zero-dimensional (0-D) SI engine model and compared in terms of both Indicated Mean Effective Pressure (IMEP) and cyclic pressure variation prediction reliability. It was found that the Hill function allows a better IMEP prediction for all the operating conditions tested (several engine speeds, supercharging pressures, and fuel mixtures), with a maximum prediction error of 2.7% compared to 4.3% of the Wiebe function. A further analysis was also performed regarding the cyclic pressure variation that affects all the IC engines during combustion and may lead to irregular engine operation; in this case, the Hill function proved to better predict the cyclic pressure variation with respect to the Wiebe function.

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Kovács, László, i Szilárd Szabó. "Test validated 0D/1D engine model of a swinging valve internal combustion engine". Multidiszciplináris tudományok 11, nr 4 (2021): 266–77. http://dx.doi.org/10.35925/j.multi.2021.4.31.

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In the quest for reaching ever higher power density of IC engines a much simpler solution has been investigated that allows vehicles to reach a comparable power level with cars equipped with turbo charged engines. The new Swinging Valve (SwV) arrangement enables the unhindered gas exchange process through an engine. In this experiment a flow bench was used to examine a normal poppet valve cylinder head and a cylinder head constructed for the same engine but with Swinging Valves. The flow parameters of the original cylinder head were obtained then the SwV head was investigated in the same way. To examine the practical use of a SwV system a 0D/1D engine simulation had been created, first using the engine with conventional cylinder head. That model had been validated with dynamometer tests. After this stage the results of the Swinging Valve flow measurements were fed in the same 0D/1D engine simulation then the results were compared and examined.

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LEJDA, Kazimierz, Artur JAWORSKI i Adam USTRZYCKI. "The effect of injection timing parameters for liquid LPG fuel on selected operating parameters of the internal combustion engine". Combustion Engines 130, nr 3 (1.07.2007): 15–25. http://dx.doi.org/10.19206/ce-117321.

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This article presents selected results of scientifi c research concerning the infl uence of the LPG fuel sequential injection parameters on the operating parameters of the internal combustion engine. Research was performed in the Department of Vehicles and IC Engines on SI MD-111E engine, which has been adapted to LPG fuel supply in multi-point injection system to the branches of the inlet manifold. During the research the sequential single and double injection were performed. The tests results obtained show very signifi cant infl uence of the injection parameters (onset of injection and size of the dose) on the engine operating parameters such as: engine power, torque end effi ciency.

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Deva, Dinesh. "Combustion and Emission Study of Ethanol Blended Fuels in IC Engines". International Journal for Research in Applied Science and Engineering Technology 10, nr 4 (30.04.2022): 1050–56. http://dx.doi.org/10.22214/ijraset.2022.41441.

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Abstract: As the most attractive heat engines, internal combustion engines are widely applied for various applications worldwide. These engines convert the chemical energy of the fuel to mechanical energy by the combustion phenomenon, which causes fuel to burn through fuel-air interaction and produce exhaust emissions. Spark ignition and compression ignition are two main categories of these engines differing in combustion mechanism. The conventional fuels of the noted engines are gasoline and diesel. With the population increase and the industrialization of societies, the use of internal combustion engines has become dramatically greater, causing several problems. Air pollution resulting from fuel combustion could be stated as one of the challenges that leads to the temperature rise of the earth and climate changes. The other problem is limited fossil fuels consumed by these engines. Additionally, health issues can be threatened by polluted air. Hence, renewable fuels were introduced as a vital key to overcome the obstacles. Biogas, liquefied petroleum gas, hydrogen, and alcohol are of well-known eco-friendly fuels. Among them, alcohol has drawn extensive attention due to its specific physical and chemical properties. Ethanol as alcohol with a high octane number, oxygen content, and low carbon to hydrogen ratio is a proper candidate to be used as an alternative fuel in internal combustion engines. Herein, the effect of ethanol on combustion and emission procedures is briefly reviewed. Moreover, the ethanol blends' effectiveness as a renewable fuel internal combustion engine is discussed. Furthermore, the measure of hydrocarbons, carbon monoxide, and oxides of nitrogen emissions is compared with the values created by pure gasoline/diesel combustion to analyze the emissions produced as pollution using ethanol blends. Keywords: Internal Combustion Engine, Combustion, Emission, Renewable Fuel, Ethanol Blend

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Tornatore, Cinzia, i Luca Marchitto. "Advanced Technologies for the Optimization of Internal Combustion Engines". Applied Sciences 11, nr 22 (17.11.2021): 10842. http://dx.doi.org/10.3390/app112210842.

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Even in a scenario where electric vehicles gain market share and the sale of internal combustion engines is gradually reduced, at the present time, there are still no real options that can totally replace the internal combustion (IC) engine over the entire range of its applications [...]

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Abyzov, Oleg, Yuri Galyshev i Andrey Metelev. "Implementation of the mechanistic wall boiling model in IC engine cooling gallery simulation". MATEC Web of Conferences 245 (2018): 09006. http://dx.doi.org/10.1051/matecconf/201824509006.

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The ever increasing power rates of modern IC engines pose a great challenge for maintaining the optimal temperature conditions. The current trend in the thermal management of IC engines is to utilize the limited and controlled nucleate boiling to achieve higher heat transfer rates. The modern CFD instrumentation offers a wide range of methods for predicting nucleate and film boiling. Of the available models the mechanistic RPI wall boiling model is selected in present paper in the cojuntion with the Eulerian multiphase model available in ANSYS Fluent solver to simulate subcooled nucleate boiling in engine cooling jacket.Results obtained from the simulation of boiling flow in cooling passages is then compared with the experimental data from author’s previous work and show a decent agreement.

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Dai, Xu Dong, Zheng Shan Zhang, Xiang Hui Meng, Zhi Nan Zhang i You Bai Xie. "Research on Multi-Disciplinary Behavior Coupling Model in IC Engine". Applied Mechanics and Materials 44-47 (grudzień 2010): 2075–79. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.2075.

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The paper analyzes the coupling of multi-disciplinary behaviors, including system dynamical behavior, combustion behavior and tribological behavior, of the cylinder liner-piston-rod-crank system in IC engine. Based on the state equation method, multi-disciplinary behavior coupling model of the Cylinder-Piston-Rod-Crank system is constructed and a multi-disciplinary behavior coupling analysis method in IC engine is presented on the basis of the state equation. With the coupling analysis model, the coupling effect of multi-disciplinary behaviors can be considered in the two sequential state calculations. By means of state calculation in time domain, the coupling effect of multi-disciplinary behaviors on life performance of IC engine can be predicted.

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Le, Tuan Anh. "SIMULATION OF A TURBOCHARGING SYSTEM EQUIPPED FOR A DIESEL ENGINE D1146TIS". Science and Technology Development Journal 12, nr 14 (15.08.2009): 86–94. http://dx.doi.org/10.32508/stdj.v12i14.2343.

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The paper presents simulated results of a turbocharging system in a combination of turbine - compressor - IC. engine on one dimensional simulation software AVL-BOOST. Findings of the research depict clearly that the turbocharger equipped for the engine has met all requirements to have high boost pressure for this engine. The full load curve of the engine is located out of the surge area and in the area of high efficiency of the compressor's map. Besides, findings of the research also virtually show the matching of the turbochager and the engine - an important basis for operating the turbocharged engine with highest efficiency. It is a part of the collaborative research activities on developing a new type of high tuborcharged IC. diesel engine between Hanoi University of Technology (HUT) and Vietnam Engine and Agricultural Machinary Corporation (VEAM).

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