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Journal articles on the topic 'Heat engine combustion chamber'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

TULWIN, Tytus, Mirosław WENDEKER, and Zbigniew CZYŻ. "The swirl ratio influence on combustion process and heat transfer in the opposed piston compression-ignition engine." Combustion Engines 170, no. 3 (2017): 3–7. http://dx.doi.org/10.19206/ce-2017-301.

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In order to maximise engine heat efficiency an engines charge flow must be properly designed -especially its swirl and tumble ratio. A two-stroke compression-ignition opposed piston engine reacts to engine swirl differently compared to a standard automotive engine with axially symmetric combustion chamber. In order to facilitate direct fuel injection, high-pressure injectors must be positioned from the side of combustion chamber. Depending on the combustion chamber geometry the swirling gases impact greatly how the injection stream is formed. If the deformation is too high the high temperature

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2

Doppalapudi, Arun Teja, and Abul Kalam Azad. "Advanced Numerical Analysis of In-Cylinder Combustion and NOx Formation Using Different Chamber Geometries." Fire 7, no. 2 (2024): 35. http://dx.doi.org/10.3390/fire7020035.

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In diesel engines, emission formation inside the combustion chamber is a complex phenomenon. The combustion events inside the chamber occur in microseconds, affecting the overall engine performance and emissions characteristics. This study opted for using computational fluid dynamics (CFD) to investigate the combustion patterns and how these events affect nitrogen oxide (NOx) emissions. In this study, a diesel engine model with a flat combustion chamber (FCC) was developed for the simulation. The simulation result of the heat release rate (HRR) and cylinder pressure was validated with the expe

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3

Shang, Yong, Fu Shui Liu, Xiang Rong Li, and Jing Wu. "Research on Parametric Design Method of Combustion Chamber on Diesel Engine." Advanced Materials Research 383-390 (November 2011): 1431–40. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1431.

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One method of parametric design on combustion chamber is used in this paper. Several independent geometrical parameters of ω type and double swirl combustion chamber are brought forward. Different series of ω type and double swirl combustion chambers have been designed by using this method. The effect of the independent geometrical parameters on the performance of diesel engine has been studied by using CFD code AVL FIRE. According to this method of parametric design and calculation result, two pistons with ω type and double swirl combustion chamber has been designed with the target of the hig

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Baklanov, Andrey V. "Concentration of carbon dioxide in products of combustion of GTE NK-16ST and NK-16-18ST." Siberian Aerospace Journal 24, no. 4 (2023): 697–705. http://dx.doi.org/10.31772/2712-8970-2023-24-4-697-705.

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This paper considers the design of two combustion chambers of a gas turbine engine running on natural gas. One combustion chamber has 32 burners, and the other has 136 nozzles located in two rows in the flame tube head. A major contributor to global warming is considered to be the significant emissions of greenhouse gases, primarily CO2, including those emitted by gas turbine engines and power plants. The reduction of carbon dioxide levels by developing a set of structural measures in the combustion chamber is one of the urgent tasks of engine construction which requires a solution in order to

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Gots, A. N., and S. A. Glinkin. "Loading conditions of pistons of internal combustion engines and causes of crack formation on combustion chamber edge." Traktory i sel hozmashiny 83, no. 10 (2016): 25–29. http://dx.doi.org/10.17816/0321-4443-66208.

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In order to develop the methods for assessment of durability of pistons of tractor diesel engines, it is necessary to conduct the research of causes of failures in their operation, in particular crack formation on the edge of combustion chamber. Tractor engines operate in transient regimes due to periodic changes of control organ position and resisting moment when tractor performs agricultural, logging and other works. In transient regimes, the stress-strain state of piston varies in time, which leads to the formation of fatigue cracks on the edge of combustion chamber. The paper reviews the s

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6

Arumugam, Sozhi, Pitchandi Kasivisvanathan, M. Arventh, and P. Maheshkumar. "Effect of Re-Entrant and Toroidal Combustion Chambers in a DICI Engine." Applied Mechanics and Materials 787 (August 2015): 722–26. http://dx.doi.org/10.4028/www.scientific.net/amm.787.722.

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This paper presents the experimental work to investigate the effect of Re-entrant and Toroidal combustion chambers in a DICI Engine. The two combustion chambers namely Re-entrant combustion chamber (RCC) and Toroidal combustion chamber (TCC) were fitted in a 4.4 kW single cylinder Direct Injection Compression Ignition (DICI) engine and tests were conducted with diesel. The influences of the combustion chamber geometry characteristics on combustion, performance and emissions characteristics have been investigated. This investigation shows the peak pressure of re-entrant chamber is higher than t

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7

Trisna Setyawan. "Perpindahan Panas Dinding Pemodelan CFD di dalam Ruang Bakar menggunakan ANSYS forte." Mars : Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer 1, no. 4 (2023): 19–25. http://dx.doi.org/10.61132/mars.v1i4.23.

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Heat transfer in diesel engines is known to affect engine efficiency and emissions. Increased heat transfer to the combustion chamber walls reduces the pressure in the cylinder and the average gas temperature, which reduces the work transferred to the piston per cycle. Therefore, the amount of heat transfer in an engine largely depends on the efficiency of the engine. Changes in gas temperature due to heat loss from the combustion chamber also affect the formation of pollutant emissions. Higher temperatures in the cylinder promote NOx emissions, while lower temperatures in the cylinder create

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8

Ji, Yan Ping, Ping Sun, and Si Bo Zhao. "Analysis of Temperature Field of High Speed Diesel Engine Parts and their Structural Optimization." Applied Mechanics and Materials 490-491 (January 2014): 1003–7. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1003.

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The analysis of structure and performance of internal combustion engine is presented in this paper from the following two aspects: the thermal load of I. C. Engine and the thermal efficiency of diesel engines. Firstly, the thermal load of key parts of I. C. Engine as well as the evaluation parameters of which are introduced briefly. Furthermore, based on the factors influencing the heat transfer process of internal combustion engine, the current research situation of internal combustion engine work process and heat balance for combustion chamber components, and the whole engine using numerical

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9

Doppalapudi, Arun Teja, Abul Kalam Azad, and Mohammad Masud Kamal Khan. "Analysis of Improved In-Cylinder Combustion Characteristics with Chamber Modifications of the Diesel Engine." Energies 16, no. 6 (2023): 2586. http://dx.doi.org/10.3390/en16062586.

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This study numerically analyses the effects of chamber modifications to investigate the improvement of in-cylinder combustion characteristics of the diesel engine using a computational fluid dynamics (CFD) approach. Five different modified chambers, namely, the double swirl combustion chamber (DSCC), bathtub combustion chamber (BTCC), double toroidal re-entrant combustion chamber (DTRCC), shallow depth combustion chamber (SCC), and stepped bowl combustion chamber (SBCC) were developed and compared with a reference flat combustion chamber (FCC). The effects of chamber modifications on temperatu

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10

Alkidas, A. C., and R. M. Cole. "Transient Heat Flux Measurements in a Divided-Chamber Diesel Engine." Journal of Heat Transfer 107, no. 2 (1985): 439–44. http://dx.doi.org/10.1115/1.3247434.

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Transient surface heat flux measurements were performed at several locations on the cylinder head of a divided-chamber diesel engine. The local heat flux histories were found to be significantly different. These differences are attributed to the spatial nonuniformity of the fluid motion and combustion. Both local time-averaged and local peak heat fluxes decreased with decreasing speed and load. Retarding the combustion timing beyond TDC decreased the peak heat flux in the antechamber but increased the peak heat flux in the main chamber. This is attributed to the relative increase in the portio

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11

Parthasarathy, M., J. Isaac Joshua Ramesh Lalvani, E. Prakash, S. Jayaraj, and K. Annamalai. "Experimental Investigation on Combustion and Emission Characteristics of Modified Piston in an IDI Diesel Engine Fueled with Ethyl Alcohol." Advanced Materials Research 984-985 (July 2014): 873–77. http://dx.doi.org/10.4028/www.scientific.net/amr.984-985.873.

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Compression ignition engines with ethyl alcohol as a fuel are associated with some problems. Because of ethyl alcohol has high self-ignition temperature. It can be used in compression engine by hot surface ignition method which is used to resolve the ignition of the fuel. The modification of the engine is carried out in such a way that a pre combustion chamber is designed in engine head with a provision for heat plug is made on the pre combustion chamber. A piston with squish plate is designed and thermally analyzed. The squish piston helps for attaining better homogeneous mixture than convent

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12

Liu, Yize, Wanhua Su, Binyang Wu, and Jiayong Wang. "The Research and Development of a Jet Disturbance Combustion System for Heavy-Duty Diesel Engines." Energies 17, no. 5 (2024): 1065. http://dx.doi.org/10.3390/en17051065.

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Herein, a diesel engine jet disturbance combustion system was proposed to achieve efficient and clean combustion under heavy load conditions in heavy-duty diesel engines. The key components of the combustion system were designed, and a research platform was constructed. Focusing on the internal combustion conditions of the disturbance chamber and the developmental path of high-speed jets, the design and comprehensive optimization of the jet disturbance combustion system were carried out. Following optimization, the peak internal heat release rate increased from 86 J/deg to 269 J/deg, and the c

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13

Poubeau, Adèle, Arthur Vauvy, Florence Duffour, Jean-Marc Zaccardi, Gaetano de Paola, and Marek Abramczuk. "Modeling investigation of thermal insulation approaches for low heat rejection Diesel engines using a conjugate heat transfer model." International Journal of Engine Research 20, no. 1 (2018): 92–104. http://dx.doi.org/10.1177/1468087418818264.

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Heat losses through combustion chamber walls are a well-known limiting factor for the overall efficiency of internal combustion engines. Thermal insulation of the walls has the potential to decrease substantially these heat losses. However, evaluating numerically the effect of coating and of its location in the combustion chamber and then design an optimized combustion system require the use of high-fidelity engine models. The objective of this article is to present the whole workflow implying the use of three-dimensional computational fluid dynamics techniques with conjugate heat transfer (CH

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14

Kose, Yigithan Mehmet, and Murat Celik. "Regenerative Cooling Comparison of LOX/LCH4 and LOX/LC3H8 Rocket Engines Using the One-Dimensional Regenerative Cooling Modelling Tool ODREC." Applied Sciences 14, no. 1 (2023): 71. http://dx.doi.org/10.3390/app14010071.

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Due to the extreme temperatures inside the combustion chambers of liquid propellant rocket engines, the walls of the combustion chamber and the nozzle are cooled by either the fuel or the oxidizer in what is known as regenerative cooling. This study presents an indigenous computational tool developed for the analysis of heat transfer in regenerative cooling of such rocket engines. The developed tool incorporates a one-dimensional (1-D) combustion analysis to calculate the thermophysical properties of the combustion gas. Basic engine properties were calculated and used to generate a thrust cham

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15

Chidambaram, Kannan, and Tamilporai Packirisamy. "Smart ceramic materials for homogeneous combustion in internal combustion engines: A review." Thermal Science 13, no. 3 (2009): 153–63. http://dx.doi.org/10.2298/tsci0903153c.

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The advantages of using ceramics in advanced heat engines include increased fuel efficiency due to higher engine operating temperatures, more compact designs with lower capacity cooling system. Future internal combustion engines will be characterized by near zero emission level along with low specific fuel consumption. Homogenous combustion which realized inside the engine cylinder has the potential of providing near zero emission level with better fuel economy. However, the accomplishment of homogeneous combustion depends on the air flow structure inside the combustion chamber, fuel injection

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16

Al-Bdeiri, Mahmood, Vladimir Krasilnikov, and Sergey Sergeev. "Modified quasi-stationary method for studying changes in transition temperatures of diesel engine pistons coated with heat-shielding materials." Proceedings of Irkutsk State Technical University 24, no. 5 (2020): 954–65. http://dx.doi.org/10.21285/1814-3520-2020-5-954-965.

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The purpose of the work is to identify complex transient heat flow paths in the combustion chamber of engine, significantly improve the models of diesel engine heat flow, and study the effect of aluminum oxide coating by the galvanic plasma method on short-term and long-term reactions of the piston head. The analysis of operation of aluminum alloy coated diesel engine piston is carried out using a modified quasi -steady method and a finite element method. A thermodynamic analysis is presented using energy and state equations with corresponding gas heat transfer. Time-dependent boundary conditi

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17

Hassan, Ahmed, and Ali Shahrany. "Effect of Intake Conditions and Combustion Factors on Gasoline and Diesel Engines Performance and Exhaust Emissions." Journal of Engineering and Applied Sciences 11, no. 1 (2024): 133. http://dx.doi.org/10.5455/jeas.2024010508.

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The study aimed to investigate the effects of intake conditions, including water injection, filter presence, and temperature variations, on the performance of petrol and diesel engines. The experiment was conducted on single-cylinder four-stroke engines at varying speeds and loads. The composition of the exhaust emissions was analyzed to determine the combustion method. The results indicated that injecting a mixture of water and air into the engine inlet could reduce engine emissions by 17-33% and exhaust temperature by 13-35% for both engines. When an air filter and water injection were prese

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18

Alkidas, A. C. "Heat Release Studies in a Divided-Chamber Diesel Engine." Journal of Engineering for Gas Turbines and Power 109, no. 2 (1987): 193–99. http://dx.doi.org/10.1115/1.3240024.

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The influences of operational parameters on the heat release and heat transfer characteristics of a divided-chamber diesel engine were examined. Increasing the fuel-air ratio increased the heat release rate, as expected, and increased the duration of combustion. Near the beginning and end of combustion the mass-burned rate was found to increase in direct proportion to an increase of engine speed. In contrast, in the central part of the combustion duration, the mass-burned rate was found to increase at a higher rate than engine speed. For motored conditions, the computed area-averaged heat-flux

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19

Noori, A. R., and M. Rashidi. "CFD Study of Heat Transfer in a Spark-Ignition Engine Combustion Chamber." Journal of Heat Transfer 129, no. 5 (2006): 609–16. http://dx.doi.org/10.1115/1.2712474.

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The objective of this study is the thermal investigation of a typical spark-ignition (SI) engine combustion chamber with particular focus in determination of the locations where the heat flux and heat transfer coefficient are highest. This subject is an important key for some design purposes especially thermal loading of the piston and cylinder head. To this end, CFD simulation using the KIVA-3V CFD code on a PC platform for flow, combustion, and heat transfer in a typical SI engine has been performed. Some results including the temporal variation of the area-averaged heat flux and heat transf

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20

Zaloznov, A., N. Pevnev, S. Borodulina, and L. Trofimova. "Improving the tests of catalytic converters accounting for the relationship between the composition of the working mixture entering the engine combustion chamber and CO and CH in exhaust gases." Journal of Physics: Conference Series 2061, no. 1 (2021): 012062. http://dx.doi.org/10.1088/1742-6596/2061/1/012062.

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Abstract The article presents results of the study aimed to establish the relationship between the working mixture entering the engine combustion chamber and CO and CH in the exhaust gases. On the basis of the theory of fuel combustion in the engine chamber and the systematic approach, and using the mathematical methods, the fuel combustion in the combustion chamber is analyzed at low ambient temperatures to decrease emissions of carbon monoxide and hydrocarbons. The criterion for optimizing the tests of catalytic converters is substantiated for low temperatures - temperatures of the heat flow

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21

Menacer, Brahim, Naima Khatir, Mostefa Bouchetara, Ahmed Amine Larbi, and Cherif Belhout. "The Heat Transfer Study in the Diesel Engine Combustion Chamber Using a Two-Zone Combustion Model." Mathematical Modelling of Engineering Problems 7, no. 4 (2020): 614–20. http://dx.doi.org/10.18280/mmep.070414.

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The study of heat transfer phenomena in diesel engines is a very complex task considering the number of engine components such as intake and exhaust manifolds, lubricant oil and coolant subsystems, the different heat transfer mechanisms (conduction, convection, and radiation). This paper presents simulation results using a dual-zone model associated to GT-Suite simulation software for the calculation of convective heat transfer from gas to the cylinder wall, radiation heat transfer, gas pressure and temperature for low, partial and full load engine as a function of crank angle for a single-cyl

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22

Borisov, I. I., and A. A. Khalatov. "THERMOPHYSICAL ANALYSIS OF THE PARAMETERS OF A BIOMASS FUELED MICRO–CHP UNIT WITH A STIRLING ENGINE." Thermophysics and Thermal Power Engineering 42, no. 4 (2020): 26–32. http://dx.doi.org/10.31472/ttpe.4.2020.3.

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A typical scheme of a biomass fueled micro-CHP unit with a Stirling engine, including a combustion chamber, a Stirling Engine, a recuperator and water heater, is considered. A brief overview of the main biomass combustion methods used in this installation is made. Thermophysical analysis was carried out on the basis of solving a system of equations: the reaction equation for wood biomass combustion, the equations of both the general heat balance and the heat balance of parts of CHP unit, as well as the equation of energy conservation at flows mixing in the combustion chamber, taken into

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Joshi, Abhishek, C. Vivek Kumar, B. Kavitha Rani, Muhamed Hussain, and L. Suvonova. "Finite element analysis of internal combustion engine cylinder head." E3S Web of Conferences 564 (2024): 11001. http://dx.doi.org/10.1051/e3sconf/202456411001.

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The cylinder head is a vital component of an internal combustion engine (ICE), playing a critical role in the combustion process, sealing the combustion chamber, and facilitating efficient heat dissipation. With the increasing demand for higher performance, efficiency, and durability of engines, the design and analysis of cylinder heads have become paramount. Finite Element Analysis (FEA) has emerged as a powerful tool for assessing the structural integrity, thermal behavior, and performance of cylinder heads under various operating conditions.This abstract presents a comprehensive review of r

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Kropiwnicki, Jacek, and Mariusz Furmanek. "Application of Stirling engine for recovery energy from exhaust gas." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 9 (2018): 89–92. http://dx.doi.org/10.24136/atest.2018.290.

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Stirling engine is device generating mechanical energy without combustion fuel inside cylinder. This fact allows to supply engine from any power source. Example of such energy source can be solar radiation, combustion low-calorie carbon in outside combustion chamber or waste heat from other device like combustion engine mounted in bus or lorry. Use that kind of device in car allows to reduce fuel consumption through increase of efficiency of utilization thermal energy produced in combustion engine. The paper presents commercial solution of Stirling engines powered by waste energy and project o

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Yao, Xingtian, Yunxiao Dong, Xiang Li, Peiyong Ni, Xuewen Zhang, and Yuhang Fan. "Exploring the Combustion Performance of a Non-Road Air-Cooled Two-Cylinder Turbocharged Diesel Engine." Sustainability 16, no. 14 (2024): 6031. http://dx.doi.org/10.3390/su16146031.

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In order to explore the combustion performance of a non-road air-cooled two-cylinder turbocharged diesel engine, an experiment on the effects of engine compression ratio, combustion chamber shape and injection timing were systematically conducted in this study. Moreover, the effects of intake air conditions on combustion performance were numerically investigated using the one-dimensional simulation platform. The findings of this study could help provide new insights for promoting the sustainable development of diesel engines used in generator sets. The results show that the increase in intake

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26

Weclas, M., J. Cypris, and T. M. A. Maksoud. "Thermodynamic Properties of Real Porous Combustion Reactor under Diesel Engine-Like Conditions." Journal of Thermodynamics 2012 (February 19, 2012): 1–11. http://dx.doi.org/10.1155/2012/798104.

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Thermodynamic conditions of the heat release process under Diesel engine-like conditions in a real porous combustion reactor simulated in a special combustion chamber were analyzed. The same analyses were performed for a free volume combustion chamber, that is, no porous reactor is applied. A common rail Diesel injection system was used for simulation of real engine fuel injection process and mixture formation conditions. The results show that thermodynamic of the heat release process depends on reactor heat capacity, pore density, specific surface area, and pore structure, that is, on heat ac

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27

SHI, Pengyu, Ming LI, Qianqian YU, Zhisheng WANG, Lishi REN, and Wei FAN. "Study on radiation heat transfer characteristics of aeroengine combustion chamber." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 42, no. 4 (2024): 697–706. http://dx.doi.org/10.1051/jnwpu/20244240697.

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The thermal radiation of gaseous combustion products in an aero-engine combustion chamber has obvious non-ash-body characteristics. In this paper, based on the OpenFOAM platform, a numerical study on multi-field coupled turbulence-combustion-radiation radiative heat transfer was carried out for a certain type of aero-engine combustion chamber using the mean weighted sum of grey gas (WSGG) gas radiation model, which can accurately describe the non-ash characteristics of the gas. The results show that the radiation heat transfer characteristics are influenced by several factors such as equivalen

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Gusev, Evgeniy V., Vladimir A. Zagovorchev, Vladimir V. Rodchenko, Elnara R. Sadretdinova, and Elizaveta A. Shipnevskaya. "Calculation of the parameters and characteristics of a rotating lunar jet penetrator." Siberian Aerospace Journal 24, no. 4 (2023): 706–16. http://dx.doi.org/10.31772/2712-8970-2023-24-4-706-716.

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The purpose of the work is to determine the parameters of the internal ballistics of a solid fuel jet engine mounted on a jet penetrator entering the ground at a high rotation speed around its own axis. Research methods: to determine the pressure in the chamber of a rotating engine, the known equations for the balance of gas inflow and consumption are usually used, as in the case of a non-rotating solid fuel jet engine. The difference between the internal ballistics of a rotating solid fuel jet engine is that the effect of rotation on the operating process is taken into account by the coeffici

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Козел, Дмитрий Викторович. "Выбор геометрических характеристик фронтового устройства и длины камеры сгорания прямоточного типа". Aerospace technic and technology, № 4sup2 (27 серпня 2021): 19–28. http://dx.doi.org/10.32620/aktt.2021.4sup2.03.

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A method has been developed for selecting the geometric characteristics of the front and the length of the direct-flow combustion chamber. Afterburner combustion chambers are of the ramjet type and are used for a short-term increase in the thrust of a gas turbine engine during takeoff, for overcoming the sound barrier by an aircraft and for flying at supersonic speed, and for making maneuvers. As part of ramjet engines, ramjet combustion chambers are used as the main combustion chambers in which the process of fuel combustion and heat supply to the working fluid is ensured. The developed metho

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Fagherazzi, Matteo, Marco Santi, Francesco Barato, and Marco Pizzarelli. "A Simplified Thermal Analysis Model for Regeneratively Cooled Rocket Engine Thrust Chambers and Its Calibration with Experimental Data." Aerospace 10, no. 5 (2023): 403. http://dx.doi.org/10.3390/aerospace10050403.

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An essential part of the design of a liquid rocket engine is the thermal analysis of the thrust chamber, which is a component whose operative life is limited by the maximum allowable wall temperature and heat flux. A simplified steady-state thermal analysis model for regeneratively cooled rocket engine thrust chambers is presented. The model is based on semi-empirical correlations for the hot-gas and coolant convective heat transfer and on an original multi-zone approach for the wall conduction. The hot-gas heat transfer is calibrated with experimental data taken from an additively manufacture

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Ismatov, J., M. Aripdjanov, J. Mirzaabdullaev, R. Tillahodjaev, A. Mirzaev, and H. Viarshyna. "Operating indicators in diesels with reduced heat and energy losses." IOP Conference Series: Earth and Environmental Science 1142, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1755-1315/1142/1/012021.

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Abstract The foregoing explains the experimentally established fact that in a heat-insulated diesel engine, diffusion combustion is of great importance - both in terms of the share of heat release and the duration of combustion. To compensate for the decrease in the efficiency of a thermally insulated diesel engine due to an increase in the duration of combustion, the injection advance is increased. The economic effect achieved in this way by increasing the maximum cylinder pressure cannot be considered due to thermal insulation. For typical compression end temperatures in a thermally insulate

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Fu, Yanyan. "Effect of Passive Pre-chamber Igniting Position on the Large Bore Natural Gas Engine Combustion Characteristics." Frontiers in Sustainable Development 4, no. 7 (2024): 147–58. http://dx.doi.org/10.54691/ct4n0w21.

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To get rid of the combustion instability and knock in combustion of low-concentration coalbed methane in the large-bore engine, the combustion-supporting effect of passive pre-chamber was studied, exploring the influence of passive pre-chamber igniting position on the combustion in pre-chamber, jet characteristics and overall combustion. Three-dimensional fluid simulation was conducted to study the influence of igniting positions on the combustion performance of the engine by setting a fixed ignition time and changing the igniting position.The results show that as the igniting position lowers,

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Yatim, Ardiyansyah, Ade Luthfi, and Raden Chemilo. "Burner Design for biogas-fuelled Stirling engine for electric power generation." E3S Web of Conferences 67 (2018): 02028. http://dx.doi.org/10.1051/e3sconf/20186702028.

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The Stirling engine is an external combustion where the fuel combustion process takes place outside the cylinder, at the combustion chamber or burner. Stirling engine offers flexibility of fuel used for the power generation hence is a potential substitute to fossil fuelled internal combustion engine and contribute toward more sustainable power generation. In this study a burner for Gamma V2-6 Stirling engine is designed and developed for a biogas-fuelled power generation system. The heat used to power the Stirling engine is obtained from combustion of biogas at the burner. The system has 5 kW

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Chen, Peng, Wansheng Nie, Kangkang Guo, Xing Sun, Yu Liu, and Haiqing Wang. "The Effects of Non-uniform Distribution of Oxidizer Flow on High-Frequency Combustion Instability." MATEC Web of Conferences 257 (2019): 01005. http://dx.doi.org/10.1051/matecconf/201925701005.

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The numerical calculation of three-dimensional unsteady combustion for the combustion chamber of LOX/kerosene high pressure staged combustion rocket engine was carried out. By changing the offset ratio of oxygen mass flow rate in the edge area of the injector face, computational studies were conducted to investigate the effects of non-uniform distribution of oxidizer flow on combustion instability for a liquid-propellant rocket engine. The calculation results show that the offset ratio of oxygen mass flow rate changes the distribution of heat release in the combustion chamber. Within a certain

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Cho, K.-W., D. Assanis, Z. Filipi, G. Szekely, P. Najt, and R. Rask. "Experimental investigation of combustion and heat transfer in a direct-injection spark ignition engine via instantaneous combustion chamber surface temperature measurements." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 222, no. 11 (2008): 2219–33. http://dx.doi.org/10.1243/09544070jauto853.

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An experimental study was performed to provide the combustion and in-cylinder heat transfer characteristics resulting from different injection strategies in a direct-injection spark ignition (DISI) engine. Fast-response thermocouples were embedded in the piston top and cylinder head surface to measure the instantaneous combustion chamber surface temperature and heat flux, thus providing critical information about the combustion characteristics and a thorough understanding of the heat transfer process. Two distinctive operating modes, homogeneous and stratified, were considered and their effect

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Mosolov, S. V., I. G. Lozino-Lozinskaya, D. M. Pozvonkov, and D. F. Slesarev. "Test Results of a Model Additively Manufactured Oxygen-Methane Combustion Chamber of a Liquid Rocket Engine." Herald of the Bauman Moscow State Technical University. Series Mechanical Engineering, no. 3 (138) (September 2021): 60–79. http://dx.doi.org/10.18698/0236-3941-2021-3-60-79.

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The paper focuses on an experimental unit developed for modeling combustion characteristics in a model oxygen-methane combustion chamber of a liquid rocket engine. The key components of the unit, i.e., the mixing head of the combustion chamber and the regeneratively cooled nozzle, were manufactured using advanced methods of additive manufacturing. The paper emphasizes the specific character of the combustion chamber components made with the use of additive technology and introduces hot-fire test results of the model combustion chamber as part of the experimental unit. The study shows the durab

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Dai, Xingyi (Hunter), Satbir Singh, Sundar R. Krishnan, and Kalyan K. Srinivasan. "Numerical study of combustion characteristics and emissions of a diesel–methane dual-fuel engine for a wide range of injection timings." International Journal of Engine Research 21, no. 5 (2018): 781–93. http://dx.doi.org/10.1177/1468087418783637.

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Computational fluid dynamics simulations are performed to investigate the combustion and emission characteristics of a diesel/natural gas dual-fuel engine. The computational fluid dynamics model is validated against experimental measurements of cylinder pressure, heat release rate, and exhaust emissions from a single-cylinder research engine. The model predictions of in-cylinder diesel spray distribution and location of diesel ignition sites are related to the behavior observed in measured and predicted heat release rate and emissions. Various distributions of diesel fuel inside the combustion

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Gots, A. N., and S. A. Glinkin. "Analysis of methods for improvement of thermal stability of pistons of tractor diesel engines." Traktory i sel hozmashiny 83, no. 12 (2016): 34–38. http://dx.doi.org/10.17816/0321-4443-66282.

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The article considers the applied methods for improving the thermal strength of pistons of internal combustion engines. Tractor diesels with combustion chamber in the piston have the greatest rate of temperature change at load rise and release, as well as the highest values of temperature gradients. The highest thermal loads occur in pistons with a semi-open combustion chamber. Periodic thermal loads with high value of temperature gradient lead to thermal fatigue fractures. Such fractures may begin with the appearance of cracks on the edge of combustion chamber. The presence even of a small cr

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Shaikin, A. P., and I. R. Galiev. "Effect of Chemical Hythane Composition on Pressure in Combustion Chamber of Engine." Alternative Energy and Ecology (ISJAEE), no. 10-12 (May 26, 2019): 36–42. http://dx.doi.org/10.15518/isjaee.2019.10-12.036-042.

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The article analyzes the influence of chemical composition of hythane (a mixture of natural gas with hydrogen) on pressure in an engine combustion chamber. A review of the literature has showed the relevance of using hythane in transport energy industry, and also revealed a number of scientific papers devoted to studying the effect of hythane on environmental and traction-dynamic characteristics of the engine. We have studied a single-cylinder spark-ignited internal combustion engine. In the experiments, the varying factors are: engine speed (600 and 900 min-1), excess air ratio and hydrogen c

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Sasaki, H., S. Sekiyama, and K. Nakashima. "A new combustion system of a heat-insulated natural gas engine with a pre-chamber having a throat valve." International Journal of Engine Research 3, no. 4 (2002): 197–208. http://dx.doi.org/10.1243/146808702762230905.

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A ceramic heat-insulated natural gas engine has been developed which incorporates a pre-chamber and a throat valve to the main chamber. Low-pressure natural gas is supplied into the pre-chamber to form fuel-rich mixtures in the pre-chamber during the intake stroke while the throat valve is closed, while natural gas and exhaust gas recirculation (EGR) gas are charged in the intake port to form a homogeneous mixture in the main chamber. Experiments showed that spontaneous ignition took place near top dead centre (TDC) in the pre-chamber immediately after the throat valve was opened, followed by

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Kovalchuk, O., O. Skorohvatov, A. Galkin, L. Gordishevski, and V. Liskovchuk. "ARMORED SHELLS WITH STRAIGHT AIR JET ENGINE." Collection of scientific works of Odesa Military Academy 1, no. 13 (2020): 34–43. http://dx.doi.org/10.37129/2313-7509.2020.13.1.34-43.

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The article analyzes the problems of sub-caliber feathered projectile, offers a variant of equipping such a projectile with an air-jet engine, graphs of air resistance, calculations of the required thrust of the air-jet engine. Features of armor-piercing projectiles with a direct-flow air-jet engine are considered, the main calculations are performed using high-level Python programming language. Currently, as armor-piercing ammunition are widely used armor-piercing sub-caliber feathered shells (BPOS) with high penetrating ability This is achieved due to the high initial velocity of ammunition

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Krishna, M. V. S. Murali, N. Durga Prasada Rao, B. Anjeneya Prasad, and P. V. K. Murthy. "Comparative Performance with Different Versions of Low Heat Rejection Combustion Chambers with Crude Rice Bran Oil." Archive of Mechanical Engineering 61, no. 4 (2014): 627–51. http://dx.doi.org/10.2478/meceng-2014-0036.

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Abstract It has been found that the vegetable oils are promising substitute, because of their properties are similar to those of diesel fuel and they are renewable and can be easily produced. However, drawbacks associated with crude vegetable oils are high viscosity, low volatility call for low heat rejection combustion chamber, with its significance characteristics of higher operating temperature, maximum heat release, and ability to handle lower calorific value (CV) fuel etc. Experiments were carried out to evaluate the performance of an engine consisting of different low heat rejection (LHR

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Lu, Jiang, Ashwani K. Gupta, and Eugene L. Keating. "Effect of IC Engine Operating Conditions on Combustion and Emission Characteristics." Journal of Fluids Engineering 115, no. 4 (1993): 694–701. http://dx.doi.org/10.1115/1.2910201.

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Numerical simulation of flow, combustion, heat release rate, and pollutants emission characteristics have been obtained using a single cylinder internal combustion engine operating with propane as the fuel. The data show that for good agreement with experimental results on the peak pressure and the rate of pressure rise as a function of crank angle, spark ignition energy and local cylinder pressure must be properly modeled. The results obtained for NO and CO showed features which are qualitatively in good agreement and are similar to those reported in the literature for the chosen combustion c

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Helmisyah, A. J., Shahrir Abdullah, and Mariyam Jameelah Ghazali. "Effect of Thermal Barrier Coating on Piston Crown for Compressed Natural Gas with Direct Injection Engine." Applied Mechanics and Materials 52-54 (March 2011): 1830–35. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1830.

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The top land of a piston normally known as the piston crown is an engine part that is continuously exposed to extreme temperature and pressure during combustion. For a compression ratio level, the compressed natural gas with a direct injection system (CNGDI) typically uses a range of compression ratio between gasoline and diesel engines, producing extremely high temperature and pressure which lead to high thermal stresses. Consequently, the piston crown is exposed to direct combustion due to the vertical movement of the piston, leading to various possible damages of thermal stresses. In contra

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Reddy, R. Bhaskar, and S. Sunilkumar Reddy. "INVESTIGATION ON THE PERFORMANCE OF FLAXSEED BIODIESEL BLENDS WITH TIO2 COATED PISTON ON A FOUR STROKE DI DIESEL ENGINE." Journal of Mechanical Engineering 46, no. 1 (2017): 49–53. http://dx.doi.org/10.3329/jme.v46i1.32523.

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Diesel engines are being used extensively for fuel economy but due to gradual depletion of Petroleum resources and increase in exhaust emissions, there is an urgent need for suitable alternative fuels for the diesel engines. As our country is an agricultural country, if the alternate fuels are produced by our farmers it will be beneficial for the country and the farmers also. In recent studies, researchers studied various vegetable oils like canola oil, alovera oil, soya been oil, flaxseed oil and hone oil etc. Out of all flaxseed oil play an important role as an alternative fuel. But the prop

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Pielecha, Ireneusz, Filip Szwajca, and Kinga Skobiej. "Numerical investigation on the effects of fueling the Turbulent Jet Ignition gas engine with methane and hydrogen." Rail Vehicles/Pojazdy Szynowe, no. 1-2 (November 30, 2023): 46–57. http://dx.doi.org/10.53502/rail-176126.

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The modern solution of two-stage combustion, namely the Turbulent Jet Ignition (TJI), enables the combustion of ultra-lean mixtures. Thanks to this solution, it became possible to reduce fuel consumption and, at the same time, to increase the combustion process indicators (including the overall combustion system efficiency). The article presents the results of numerical tests of a heavy-duty engine equipped with the TJI system running on gas fuels. The AVL BOOST software was used to analyze the effects of different fuel injection rates into the pre-chamber and various ignition timing angles, w

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Soontornchainacksaeng, Thanakom, and Paramust Juntarakod. "The Nonlinear Multi-Fuel Combustion Equation: Comparison between the Model of Heat in SIE for Ethanol-Gasoline Blended and High Order Iteration Method." Applied Mechanics and Materials 789-790 (September 2015): 448–56. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.448.

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A quasi one-dimensional engine cycle, the simulation program was developed to predict the simple heat transfer during combustion stroke in a spark ignition engine (SIE) of ethanol-gasoline blended fuels. A two-zone heat release model was utilized to model the combustion process inside the combustion cylinder by using high order iteration method (HIM) in combustion equation. The fuel, air and burned gas properties throughout the engine cycle were calculated by using variable specific heats. The transient heat flux inside the combustion chamber due to the change in the cylinder gas temperature a

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Rajendran, S., K. Ganesan, K. Sakthivel, SM Murugesan, and 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, no. 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 ef

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Beccari, Stefano, and Emiliano Pipitone. "Heat Transfer Modeling of Hydrogen-Fueled Spark Ignition Engine." Energies 18, no. 3 (2025): 475. https://doi.org/10.3390/en18030475.

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Currently, green hydrogen, generated through renewable energy sources, stands out as one of the best substitutes for fossil fuels in mitigating pollutant emissions and consequent global warming. Particularly, the utilization of hydrogen in spark ignition engines has undergone extensive study in recent years. Many aspects have been analyzed: the conversion of gasoline engines to hydrogen operation, the combustion duration, the heat transfer, and, in general, the engine thermal efficiency. Hydrogen combustion is characterized by a smaller quenching distance compared to traditional hydrocarbon fu

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Harada, Yuji, Kenji Uchida, Tatsuya Tanaka, et al. "Wall heat transfer of unsteady near-wall flow in internal combustion engines." International Journal of Engine Research 20, no. 7 (2019): 817–33. http://dx.doi.org/10.1177/1468087419853432.

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Although the near-wall turbulence is not fully developed in the engine combustion chamber, wall heat transfer models based on flow characteristics in fully developed near-wall turbulence are typically employed in engine simulations to predict heat transfer. Only few studies reported the wall heat transfer mechanism in near-wall flow where the near-wall turbulence was not fully developed as expected in the engine combustion chamber. In this study, the velocity distribution and wall heat flux in such a near-wall flow were evaluated using a rapid compression and expansion machine. In addition to

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