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Journal articles on the topic 'Replacement of marching engines'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Dewhurst, Susan, Melissa J. Bargh, Chester Davidson, and Theodoros M. Bampouras. "Loaded and Unloaded Marching: Implications for Fluid Replacement." Open Sports Sciences Journal 7, no. 1 (2014): 16–21. http://dx.doi.org/10.2174/1875399x01407010016.

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Marching with essential survival equipment is a fundamental military exercise. A consequence of this increased load is an increased risk of dehydration. Dehydration may have fatal consequences in a combat situation where performance must be optimal. This risk can be minimized with an understanding of the additional fluid needs of soldiers marching when loaded compared to unloaded. The aim of this study was to quantify fluid loss caused by marching with a loaded Bergen rucksack and webbing of 33.5 kg for 45 minutes when compared to unloaded carriage in eight healthy male officer cadets (age, 20

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2

Sergomasov, Mikhail, and Natalia Murzak. "The Kolomna Machine-Building Plant during the First World War: manufacturing of military and civilian products." OOO "Zhurnal "Voprosy Istorii" 2024, no. 4 (2024): 88–99. http://dx.doi.org/10.31166/voprosyistorii202404statyi08.

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The article presents the peculiarities of the Kolomna Machine-Building Plant during the First World War. The process of expanding production is shown by increasing the production of steam locomotives for military field railways, medium-speed piston engines for navy ships and submarines, as well as new products for the enterprise - artillery shells, machines for the production of barbed wire, machine-gun carriages, marching infantry and artillery kitchens.

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3

Leung, Francis K. N., and Ada L. M. Cheng. "Determining replacement policies for bus engines." International Journal of Quality & Reliability Management 17, no. 7 (2000): 771–83. http://dx.doi.org/10.1108/02656710010336361.

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4

Feng, Tan, and Lin Lv. "Modeling and Weight Analysis of Urea-SCR System." Applied Mechanics and Materials 535 (February 2014): 796–801. http://dx.doi.org/10.4028/www.scientific.net/amm.535.796.

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Emission regulations for diesel engines are becoming increasingly stricter worldwide, which make the modification to the SCR aftertreatment systems for marching various diesel engines of different emission levels become an urgent problem. This work presented a complete urea-SCR modeling approach. An accurate urea-SCR model consisting of 1d/3d adblue injection model and 1d catalytic converter model was established. After the estimation of kinetic parameters, the model showed good agreement with experimental data for different exhaust temperatures. Based on this advanced urea-SCR platform, this

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5

Hughes, Emma. "Web Search Engines - Not Yet a Reliable Replacement for Bibliographic Databases." Evidence Based Library and Information Practice 13, no. 3 (2018): 85–87. http://dx.doi.org/10.18438/eblip29378.

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A Review of: Bates, J., Best, P., McQuilkin, J., & Taylor, B. (2017) Will web search engines replace bibliographic databases in the systematic identification of research? The Journal of Academic Librarianship, 43(1), 8-17. https://doi.org/10.1016/j.acalib.2016.11.003 Abstract Objective - To explore whether web search engines could replace bibliographic databases in retrieving research. Design - Systematic review. Setting - English language articles in health and social care; comparing bibliographic databases and web search engines for retrieving research publi

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Byrne, Christopher, Chin Leong Lim, Serena Ai Neo Chew, and Elaine Tan Yu Ming. "Water versus Carbohydrate-Electrolyte Fluid Replacement during Loaded Marching Under Heat Stress." Military Medicine 170, no. 8 (2005): 715–21. http://dx.doi.org/10.7205/milmed.170.8.715.

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7

Zhuravel, Dmytro, Kyrylo Samoichuk, Serhii Petrychenko, et al. "Modeling of Diesel Engine Fuel Systems Reliability When Operating on Biofuels." Energies 15, no. 5 (2022): 1795. http://dx.doi.org/10.3390/en15051795.

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One of the main trends in the development of modern engine building is the use of biodiesel fuel, which can lead to a decrease in the reliability of engines that are not adapted to it. However, at present there is no general method for determining the reliability of fuel systems of internal combustion engines. In this paper, a reliability model of engine fuel systems when operating on biofuel has been developed. Comprehensive indicators for assessing the reliability of diesel engine fuel systems are the coefficient of readiness and technical use. The availability factor of the fuel system when

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8

Ramadhani, Dimitry Rizal, and Erifive Pranatal. "Analysis of Design Changes from Main Engine Diesel Engine to Electric Engine on Fishing Vessels." Journal of Applied Sciences, Management and Engineering Technology 5, no. 1 (2024): 7–17. http://dx.doi.org/10.31284/j.jasmet.2024.v5i1.5965.

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Fishing vessels in Indonesia conventionally use diesel engines as their main propulsion engine. However, the use of diesel engines has quite a bad impact on the surrounding environment. So the latest innovations using alternative energy are needed. One of them is the use of electric engines as a replacement for diesel engines in the ship's main propulsion engine. The use of this electric machine will have a friendly impact on the environment. Apart from that, you don't need to spend a lot of money to maintain this electric machine. We can see this by comparing the ship's thrust requirements wi

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9

Vepraskas, Claudia. "Beat the Heat: Managing Heat And Hydration In Marching Band." Journal of School Nursing 18, no. 4 (2002): 237–43. http://dx.doi.org/10.1177/10598405020180042001.

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Marching band students are athletes who practice outdoors under conditions that expose them to dehydration, heat exhaustion, and sunstroke. They suffer these heat-related injuries because breaking formation frequently to adequately hydrate is impractical. This project developed educational materials alerting the students and the director to heat-related illnesses and tested a simple method of fluid replacement that could be used during practice. A Heat Index chart was adapted to identify hazardous conditions; fluid intake recommendations were made based on the Heat Index. Students purchased a

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10

Vepraskas, Claudia. "Beat the Heat: Managing Heat And Hydration In Marching Band." Journal of School Nursing 18, no. 4 (2002): 237–43. http://dx.doi.org/10.1177/10598405020180042101.

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Marching band students are athletes who practice outdoors under conditions that expose them to dehydration, heat exhaustion, and sunstroke. They suffer these heat-related injuries because breaking formation frequently to adequately hydrate is impractical. This project developed educational materials alerting the students and the director to heat-related illnesses and tested a simple method of fluid replacement that could be used during practice. A Heat Index chart was adapted to identify hazardous conditions; fluid intake recommendations were made based on the Heat Index. Students purchased a

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11

BALICKI, Włodzimierz, Zbigniew KORCZEWSKI, and Stefan SZCZECIŃSKI. "Application areas and development trends of combustion turbo engines." Combustion Engines 130, no. 3 (2007): 3–14. http://dx.doi.org/10.19206/ce-117320.

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This paper presents the development history of structure, applications and operation methods of turbo engines and their characteristics enabling the application of such engines to propel air and sea means of transport. It describes the contemporary structural forms and their impact on the usable characteristics. The authors paid attention to the environmental requirements that force the replacement of oil-derivative fuels with biofuels.

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12

Glazyk, Dmitry Konstantinovich, Vladimir Viktorovich Manitsyn, and Rafail Ravilevich Simashov. "Determination of diesels lubricating oil consumption norms taking into account innovative technology of regeneration on ships." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2020, no. 2 (2020): 81–91. http://dx.doi.org/10.24143/2073-1574-2020-2-81-91.

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The article considers the current methods of calculating norms of lubricating oil consumption by marine diesels that provide for three causes of oil loss: oil burning, evaporation rate, and replacement expense. According to the manual, the lubricating oil consumption for replacement is considered only in trunk diesel engines; in main crosshead diesel engines with capacity over 3000 kW it is not considered and not performed. The lubricating oil consumption norms are proposed to carry out in terms of burnout and evaporation, according to the methods of determining fuel consumption norms. To dete

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13

Wang, Shu Xin, Ming Hui Chen, Xin Hua Huang, and Yun Gu. "Experimental Study on Fuel Injection Intelligent Control Technology for Hybrid Fuel Engine." Applied Mechanics and Materials 220-223 (November 2012): 744–47. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.744.

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On the base of converting the X6170ZC diesel engine into a diesel-LNG Hybrid Diesel Engines, intelligent control technology was used to improve the precision of fuel injection. Through the experimental analysis of the replacement rate changes, the test results show that the engine comprehensive replacement rate is higher and more economic.

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14

Kilimnik, Sebastian, and Robert Polasik. "Lubricants used in internal combustion engines in times of downsizing." MATEC Web of Conferences 351 (2021): 01027. http://dx.doi.org/10.1051/matecconf/202135101027.

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The operation of the internal combustion engine leads to the production of exhaust gases harmful to the natural environment. The introduced standards of the European exhaust emission standard aim, among other things, to reduce CO2 emissions. Such assumptions are related to the reduction of fuel consumption of internal combustion engines in vehicles. This means the need to make structural changes in the produced engines, and thus reduce the displacement while maintaining high power and torque. Engines constructed in this way require the use of individually selected oils and maintaining appropri

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15

Nazarov, F. L. "Factors of increasing engine oil replacement time in automobile diesel engines." Intellect. Innovations. Investments, no. 5 (2023): 92–101. http://dx.doi.org/10.25198/2077-7175-2023-5-92.

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The relevance of the research topic is due to the fact that the potential for increasing the replacement period of engine oil in modern and promising automotive engines should have not only a marketing basis, but also a scientific justification for its implementation. The aim of the study is to reduce the unit cost of maintenance of automobile engines by increasing the timing of engine oil change. A particular task within the framework of this article is to establish the factors that cause an increase in the period for replacing engine oil in automobile diesel engines (on the example of the KA

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Machekhin, N. Y., I. I. Shirlin, and S. V. Pashukevich. "USAGE OF HIGH-QUALITY ENGINE OILS WITH EXTENDED REPLACEMENT INTERVALS: FEATURES OF THE EQUIPMENT OPERATION." Russian Automobile and Highway Industry Journal 16, no. 4 (2019): 446–54. http://dx.doi.org/10.26518/2071-7296-2019-4-446-454.

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Introduction. The effective operation of cars largely depends on the state of the engines, their downtime in maintenance and repair. Since the maintenance of modern engines is often reduced to the replacement of engine oil, the increase in the duration of its work significantly reduces maintenance costs and downtime in maintenance. Long maintenance-free operation of the internal combustion engines of automotive vehicles is directly related to the state of the engine oil used in this power unit. The aim of the paper is to show the features of the equipment operation with significant intervals o

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Chłopek, Zdzisław, Hubert Sar, Krystian Szczepański, and Dagna Zakrzewska. "Operational Issues of Using Replacement Fuels to Power Internal Combustion Engines." Energies 16, no. 6 (2023): 2643. http://dx.doi.org/10.3390/en16062643.

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The classification of engine fuels was systematised in the present study. The basic evaluation criterion included the type of raw material used for the production of motor fuel and the prevalence of its usage. There was a reason for the purposefulness of searching for new kinds of engine fuels not only for the sake of environmental protection but also for the rational use of natural resources. The concept of substitute fuels was methodically presented. The criteria for the qualification of substitute fuels for internal combustion engines were systematised. Using the example of fuels produced f

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18

Ferral-Smith, Hayden, Georgia Giannakakis, Joshua Wilson, and Joshua Taylor. "Factors Influencing the Thermodynamic Efficiency of Stirling Engines." PAM Review Energy Science & Technology 4 (June 5, 2017): 17–29. http://dx.doi.org/10.5130/pamr.v4i0.1459.

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This meta-study examines the factors which contribute to Stirling engine efficiency. Working fluids should have high specific heat capacity, low viscosity and low density making noble gases the most suitable. Each different working fluid has its own optimum power output at varying pressures and temperatures. The best being Helium at 4.14 MPa and 922K. Dead volume also affects the power output of Stirling engines. Theoretical engines with zero dead volume are ideal but dead volume can occupy over 50% of the engine. Engine configuration also impacts on the efficiency of a Stirling engine. The la

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19

Timoshenko, V. I., V. P. Halynskyi, and Yu V. Knyshenko. "Theoretical studies on rocket/space hardware aerogas dynamics." Technical mechanics 2021, no. 2 (2021): 46–59. http://dx.doi.org/10.15407/itm2021.02.046.

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This paper presents the results of theoretical studies on rocket/space hardware aerogas dynamics obtained from 2016 to 2020 at the Department of Aerogas Dynamics and Technical Systems Dynamics of the Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine along the following lines: rocket aerodynamics, mathematical simulation of the aerogas thermodynamics of a supersonic ramjet vehicle, jet flows, and the hydraulic gas dynamics of low-thrust control jet engines. As to rocket aerodynamics, computational methods and programs (CMPs) we

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20

Lee, J., and D. J. Patterson. "Nonlinear Valve Train Dynamics Simulation With a Distributed Parameter Model of Valve Springs." Journal of Engineering for Gas Turbines and Power 119, no. 3 (1997): 692–98. http://dx.doi.org/10.1115/1.2817043.

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A simulation model of valve train dynamics was developed in order to investigate the vibrational behavior of a valve train under heavy normal load, especially for heavy-duty diesel engines. The nonlinear multi-degree-of-freedom model developed for this study uses input data resulting from the kinematic analysis. The valve spring was modeled as a distributed parameter system rather than a lumped mass system. The stiffness constants of each valve train component were theoretically obtained as nonlinear values. The partial differential equation describing the motion of the spring and the ordinary

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21

Zuo, Yu Yu. "Gas Turbine Engines Lubrication System Design." Advanced Materials Research 900 (February 2014): 773–76. http://dx.doi.org/10.4028/www.scientific.net/amr.900.773.

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There are many reasons for having a lubricant within the engine besides that of reducing friction. However scrupulously clean the engine is maintained, there will always be a small amount of dirt or impurities that find their way inside. That dirt must be removed before it can cause damage to bearings or block small oil passageways. The oil can be used to keep the engine clean by carrying dirt to the oil filter where it is strained out and where it remains until replacement of the filter. The majority of the bearings within the engine are manufactured from steel, a metal which would soon oxidi

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22

Lai, K. K., Francis K. N. Leung, B. Tao, and S. Y. Wang. "Practices of preventive maintenance and replacement for engines: A case study." European Journal of Operational Research 124, no. 2 (2000): 294–306. http://dx.doi.org/10.1016/s0377-2217(99)00382-3.

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23

Perna, A., A. Cappiello, G. Di Cicco, et al. "Alternative Propulsion Systems and Low/Zero Carbon Fuels for Different Marine Vessels." Journal of Physics: Conference Series 2893, no. 1 (2024): 012104. https://doi.org/10.1088/1742-6596/2893/1/012104.

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Abstract In 2022, shipping was responsible for around 706 million tonnes of carbon dioxide emissions, up 5% from 2020 and back to 2017-2018 levels. To accelerate the energy transition and reduce emissions in this sector, the International Maritime Organization (IMO) has set ambitious goals requiring all stakeholders’ radical actions. Several solutions have been proposed such as cruise speed reduction, on-board installation of a Carbon Capture and Storage system, use of low/zero carbon fuels in conventional internal combustion engines, and introduction or replacement of the main and auxiliary e

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24

Pilicita, Josué, Josué Domínguez, Carlos Torresano, and Byron Salazar. "Diagnosis and Prevention of Overheating in Internal Combustion Engines." SCT Proceedings in Interdisciplinary Insights and Innovations 3 (January 1, 2025): 429. https://doi.org/10.56294/piii2025429.

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Overheating in internal combustion engines, particularly in models such as the 2011 Mazda BT-50, was highlighted as a significant problem due to its impact on engine efficiency and the environment. It was noted that this phenomenon can increase pollutant emissions and deteriorate critical components such as lubricating oil, affecting engine life. According to Briceño and Brayan (2022), the cooling system plays a key role in preventing overheating, as it regulates the temperature through the radiator, water pump and thermostat. Galvez (2020) emphasised the importance of keeping these components

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25

Starosvetsky, J., R. Armon, M. Ratzker, S. Levitsky, and E. Tuval. "Failure Analysis: Investigation of Severe Corrosion of Aluminum Parts in Stored Diesel Engine Cooling Systems." Materials Performance 44, no. 8 (2005): 56–59. https://doi.org/10.5006/mp2005_44_8-56.

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Extensive perforation of some aluminum parts caused by severe corrosion was found in the cooling systems of 250-hp (186-kw) diesel engines during long-term storage. The engines were maintained on a 2-year schedule that included replacement of the coolant—an inhibited solution of water and ethylene glycol. The failure analysis revealed three main causes of the corrosion: a) pitting corrosion initiated by chloride ions present in tap water used for the coolant preparation, b) inactivation of the applied inhibitors by calcium and magnesium ions present in water, and c) the development of microbio

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26

Лось, Александр Васильевич. "ВЗАИМОВЛИЯНИЕ ИЗМЕНЕНИЙ В СИЛОВОЙ УСТАНОВКЕ И В ГЕОМЕТРИИ КРЫЛА У ЛЕГКИХ ВОЕННО-ТРАНСПОРТНЫХ САМОЛЕТОВ". Aerospace technic and technology, № 3 (26 червня 2020): 15–20. http://dx.doi.org/10.32620/aktt.2020.3.02.

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An analysis of the main directions of the development of military transport aircraft (MTА) showed that, as applied to light military vehicles, a tendency to increase their carrying capacity in a narrow range corridor was revealed. The required increase in carrying capacity inevitably entails an increase in the starting mass of modifications, which leads to a deterioration in take-off and landing characteristics, and acts as a serious limitation, especially for light military-technical complexes, according to their conditions of basing. The solution of such problematic problems can be carried o

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27

Perakis, Anastassios N., and Bahadir Inozu. "Reliability Analysis of Great Lakes Marine Diesels: State of the Art and Current Modeling." Marine Technology and SNAME News 27, no. 04 (1990): 237–49. http://dx.doi.org/10.5957/mt1.1990.27.4.237.

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Some essential steps for the application of reliability, availability, and maintainability (RAM) techniques to marine diesel engines are presented. The paper begins with a summary of the basic concepts of reliability engineering, followed by a survey of the relevant literature on RAM applications to the marine industry and to marine diesel engines in particular. Next, the results of an informal survey of the reliability, maintenance, and replacement practices of Great Lakes operators are presented. Finally, the first two steps for a RAM application, failure modes and effects analysis and fault

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28

Rust, John. "Optimal Replacement of GMC Bus Engines: An Empirical Model of Harold Zurcher." Econometrica 55, no. 5 (1987): 999. http://dx.doi.org/10.2307/1911259.

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Chavdarov, A. V. "Application of MDO technology for internal combustion engines." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 10 (October 1, 2021): 37–41. http://dx.doi.org/10.33920/sel-10-2110-05.

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The prospects of using nano-crystalline ceramic coatings on internal combustion engine parts obtained by micro-arc oxidation (MDO) technology are considered. The tendency of development of engine building on replacement of cast-iron blocks and sleeves on aluminum with the special coverings received by galvanic methods is shown. It is noted that this direction does not involve the use of repair technologies, which significantly affects consumers. Analysis and practical tests have shown the possibility of using MDO technology both in the manufacture of engine parts and for the performance of res

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Nofri, Bambang, Anita Susilawati, and Romy Romy. "Optimization of Gas Turbine Maintenance Scheduling in PLN Tanjung Datuk Pekanbaru." Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) 64, no. 3 (2020): 88–93. http://dx.doi.org/10.36842/jomase.v64i3.217.

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This study discusses determining the optimal scheduling for maintenance of gas turbine engines in PLN Tanjung Datuk Pekanbaru. The optimal maintenance scheduling is done on critical components, namely turbine blade and AVR (Automatic Voltage Regulator) using Monte Carlo simulation. The optimal scheduling maintenance scenario is done by generating random numbers from MTTF (Mean Time To Failure) and MTTR (Mean Time To Repair) values and data validity testing. The results of research for optimal checking of turbine engines are once every 10 days with the reliability of turbine engines 43%. The op

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Irwan Sukendar, Akhmad Syakhroni, and Muhammad Reza Prawira. "Analysis of the Age Replacement Method to Reduce Tool Downtime." International Journal of Education, Science, Technology, and Engineering 3, no. 1 (2020): 1–12. http://dx.doi.org/10.36079/lamintang.ijeste-0301.41.

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A manufacturing company engaged in the manufacturing of diesel engines in Indonesia has a problem with high downtime. The most frequent replacement frequency is in the cylinder liner line which in April - June 2018 has 1254 units of replacements, besides that the cylinder liner line also has the highest downtime of 7243.94 minutes. To overcome this problem, it is necessary to schedule tool replacement using the Age Replacement method, where this method is to determine the tool replacement schedule with the least downtime. After that the calculation is done using the Availability method, where

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Leung, Francis K. N., and K. K. Lai. "A case study on maintenance of bus engines using the sequential method." International Journal of Quality & Reliability Management 20, no. 2 (2003): 255–67. http://dx.doi.org/10.1108/02656710310456644.

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This paper reports on the application of the sequential method, presented in a previous paper by Lai et al. in 2001, to determine optimal strategies of when to carry out a preventive maintenance action for an engine and when to replace an engine in use. The sequential method was run with real data provided by the Kowloon Motor Bus Company Limited in Hong Kong. First, both the maximum‐likelihood density estimation procedure and the nearest‐neighbour density estimation procedure were applied to assess the model parameters, and the goodnesses of fit of the distribution was assessed. Second, some

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Lebedevas, Sergejus, and Galina Lebedeva. "THE PROBLEMS OF USING ALCOHOL BIOFUEL MIXTURES IN THE LITHUANIAN TRANSPORT SYSTEM." TRANSPORT 24, no. 1 (2009): 58–65. http://dx.doi.org/10.3846/1648-4142.2009.24.58-65.

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The article presents the technological aspects of the problems aimed at using alcohol biofuel mixtures in diesel engines kept in operation in Lithuania concerning a gradual replacement of fuel oils with biofuels. It is shown that three‐component fuels such as D‐RME‐E possess the motor characteristics close to mineral diesel fuel. The use of the EC standardized rapeseed oil methyl esters RME as a solvent allows compensating the unfavorable motor characteristics of ethanol E and increasing the number of biocomponents in the fuel at the same time. The key aspects of research on the indicator proc

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34

Kulchitskiy, Alexey R. "On new requirements for the environmental indicators of agricultural tractors in the Customs Union." Tractors and Agricultural Machinery 89, no. 3 (2023): 167–74. http://dx.doi.org/10.17816/0321-4443-106047.

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BACKGROUND: Decisions of the Council of the Eurasian Economic Commission No. 127 of October 29, 2021. and No. 89 dated 04/15/2022. amendments have been made to the Technical Regulations of the Customs Union On the safety of agricultural and forestry tractors and trailers for them (TR CU 031/2012). AIMS: Analysis of modern requirements for the environmental indicators of agricultural tractors in the Customs Union. METHOD: Analytical. RESULTS: By the decision of the Council of the Eurasian Economic Commission (October 29, 2021.) amendments have been made to the Technical Regula

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35

Kovbasenko, Serhii. "Possibilities of enhancing the environmental safety of diesel vehicles using alternative fuels." Journal of Mechanical Engineering and Transport 16, no. 2 (2023): 51–57. http://dx.doi.org/10.31649/2413-4503-2022-16-2-51-57.

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Today, most motor fuels are made from non-renewable sources of petroleum origin. In connection with the environmental problems associated with the use of traditional motor fuels in motor vehicle engines, many countries are implementing strict requirements for the greening of motor vehicles.At the same time, vehicles with diesel engines are quite attractive in terms of consumption of alternative motor fuels. One of the ways to increase the environmental safety of vehicles with diesel engines is the complete or partial replacement of diesel fuel with alternative fuels. In this regard, research a

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Belov, S. A., and I. V. Busin. "Overview of engine oil replacement technologies in internal combustion engines of agricultural machinery." Glavnyj mekhanik (Chief Mechanic), no. 9 (September 1, 2020): 10–16. http://dx.doi.org/10.33920/pro-2-2009-01.

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The article reviews four existing technologies for replacing engine oil and a method for determining its suitability for improving economic efficiency. It is established that the oil is replaced according to the need in accordance with the defect indicators. This technology of oil condition is characterized by a more complete use of its resource. The frequency of replacement is determined by the indicators of condition, which is monitored by special sensors built into the engine lubrication system. However, the difficulty of using this technology is due to the lack of high-quality devices for

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Chan, Jie Sheng, and Hortense Le Ferrand. "Assessment of nacre-like ceramics in replacement to Ni superalloys in aircraft's engines." Sustainable Materials and Technologies 31 (April 2022): e00363. http://dx.doi.org/10.1016/j.susmat.2021.e00363.

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Kane, Seamus P., and William F. Northrop. "Thermochemical Recuperation to Enable Efficient Ammonia-Diesel Dual-Fuel Combustion in a Compression Ignition Engine." Energies 14, no. 22 (2021): 7540. http://dx.doi.org/10.3390/en14227540.

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A thermochemical recuperation (TCR) reactor was developed and experimentally evaluated with the objective to improve dual-fuel diesel–ammonia compression ignition engines. The novel system simultaneously decomposed ammonia into a hydrogen-containing mixture to allow high diesel fuel replacement ratios and oxidized unburned ammonia emissions in the exhaust, overcoming two key shortcomings of ammonia combustion in engines from the previous literature. In the experimental work, a multi-cylinder compression ignition engine was operated in dual-fuel mode using intake-fumigated ammonia and hydrogen

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Khan, T. M. Yunus. "A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines." Energies 13, no. 17 (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. Biodies

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Antropov, B. S., V. V. Gumenniy та V. A. Generalov. "Исследование периодичности замены моторного масла на дизельных автомобилях". Vestnik APK Verhnevolzh`ia, № 2(46) (30 червня 2019): 79–82. http://dx.doi.org/10.35694/yarcx.2019.46.2.016.

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Рассмотрены вопросы периодичности замены масла в дизельном двигателе, способствующие увеличению срока службы дизельного двигателя, учитывая опыт ведущих зарубежных автостроительных фирм. Рассмотрена зависимость периодичности замены масла на дизельных двигателях от эксплуатационных условий. Даны рекомендации для внесения в устройство системы смазки, с целью увеличения срока службы дизельного двигателя.The questions of the frequency of oil replacement in a diesel engine contributing to an increase the life of a diesel engine taking into account the experience of leading foreign automobile firms

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Saricks, Christopher L., Donald M. Rote, Frank Stodolsky, and James J. Eberhardt. "Alternatives to Diesel Fuel in California: Fuel-Cycle Energy and Emission Effects of Possible Replacements due to the Toxic Air Contaminant Diesel Particulate Decision." Transportation Research Record: Journal of the Transportation Research Board 1738, no. 1 (2000): 86–93. http://dx.doi.org/10.3141/1738-10.

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Limitations on the use of petroleum-based diesel fuel in California could occur pursuant to declaration by the California Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a toxic air contaminant subject to the state’s Proposition 65. It is the declared intention of CARB not to ban diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible “midcourse” strategies that result in some degree of (conventional) diesel displacement. In the first case, substantial displacement of compression-ignition (CI) by sp

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Kossov, Evgeny, Ivan Andronchev, Vitaliy Asabin, Anatoly Silyuta, and Lidia Kossova. "What should be a gas-engine locomotive." E3S Web of Conferences 157 (2020): 01004. http://dx.doi.org/10.1051/e3sconf/202015701004.

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Today, no one doubts the necessity of widespread applying of gas fuel both in industry and in transport. The price, environmental safety and availability of this type of fuel play a crucial role. Russian Railways has also taken a number of decisions to develop the design and construction of gas-fueled locomotives. The work is being carried out in two directions: locomotives will be created that run on gas fuel using gas turbine and gas piston engines with full replacement of diesel fuel, as well as gas locomotives with diesel engines that run on a gas-diesel cycle. The latter are attractive be

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Niculescu, Filip, Claudia Borzea, Adrian Savescu, Andrei Mitru, and Mirela Letitia Vasile. "Automation and Electronic Control of Marine Gas Turbine Engine for Ship Revamp." Technium: Romanian Journal of Applied Sciences and Technology 2, no. 4 (2020): 98–108. http://dx.doi.org/10.47577/technium.v2i4.923.

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Gas turbines used in propulsion ensure increased efficiency and safety, with a very good power / weight ratio and with low maintenance and operation costs. Due to becoming out-of-date and reaching the maximum operation hours and expected lifetime, which can cause malfunctioning, older turbine engines on frigates need to be replaced with newer generation propulsion engines. The paper presents the replacement of the turbine engine on a defence frigate, focusing on the automation and electronic control solution employed for a propulsion turbine, integrating state-of-the-art techniques. The electr

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Lebedev, B., S. Uminsky, M. Korolkova, and A. Melnik. "TECHNOLOGY FOR THE RESTORATION OF DIESEL CRANKSHAFTS WITH THE STRENGTHENING OF NECKS." SHIP POWER PLANTS 47, no. 1 (2023): 240–48. http://dx.doi.org/10.31653/smf47.2023.240-248.

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Formulation of the problem. The resource of a marine diesel engine before overhaul depends mainly on the state of the crank mechanism, and the crankshaft is the main link in this mechanism. Crankshafts are among the most critical parts of engines and are operated under conditions of variable loads. Shaft journals are subject to sliding friction at high speeds and high specific pressures. The crankshaft is one of the most important expensive engine parts (its cost is more than 10% of the cost of the entire engine) - to a large extent determines its resource [1-3]. During the operation of such c

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Kolganov, I. V. "Review of electric rocket engines for small spacecraft propulsion systems." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 9, no. 2 (2025): 94–103. https://doi.org/10.25206/2588-0373-2025-9-2-94-103.

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The article analyzes the current state of global development of low-energy plasma propulsion systems for guided small spacecraft. The aim of the research is to review the main types and constructions of electric rocket engines, to identify the problems arising in the development process affecting the energy and design features. One of the most demanded and promising directions in the field of propulsion for small spacecraft is ion engines. The use of electrical energy to create propulsion, as well as high-frequency electromagnetic radiation, allows minimizing power losses. A key advantage of p

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Ibadullaev, Adel Damirovich, and Oleg Petrovich Kovalev. "Spring dampers of torsional vibrations in modern marine diesel engines: advantages and disadvantages." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2023, no. 2 (2023): 66–73. http://dx.doi.org/10.24143/2073-1574-2023-2-66-73.

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The article presents analysis of the advantages and disadvantages in assembling the spring dampers of torsional vibrations in modern marine diesel engines. There are considered the urgent problems of using spring dampers in the marine propulsion systems: lack of the systematized scientific data about the spring damper design, statistics of their prevalence in the marine diesel engines, analysis of breakdowns. It has been stated that today there is no methodology for assessing the technical condition of spring dampers, except for the methods recommended by the Russian Maritime Register of Shipp

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Pivovarchik, А. А. "Study of the performance indicators of synthetic motor oils used in petrol engines of Škoda Rapid passenger cars." Vesnik of Yanka Kupala State University of Grodno. Series 6. Engineering Science 12, no. 2 (2022): 24–31. http://dx.doi.org/10.52275/2223-5396-2022-12-2-24-31.

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The aim of the work is to study the change in kinematic viscosity and base number of imported and domestic synthetic motor oils used in gasoline internal combustion engines with an increase in the mileage of a Škoda Rapid car. The scientific novelty of the work consists in obtaining new experimental data on the change in kinematic viscosity and base number in synthetic motor oils of domestic and foreign brands with an increase in vehicle mileage. The introduction contains brief information on the requirements for kinematic viscosity and base number in synthetic motor oils used in gasoline inte

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Wang, Shu Xin, Jin Zhang, and Shi Yang Jiang. "Experimental Study on the Load Characteristics of Diesel-LNG Hybrid Diesel Engines." Advanced Materials Research 356-360 (October 2011): 1375–78. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.1375.

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The paper introduces the structure and working principles of the diesel-LNG electronic injection system. For a further experimental study, the author transforms a X6170ZC-19 diesel engine to a hybrid-fuel engine by installing this electronic injection system, and the load characteristics experiment of which testifies that: the diesel-LNG diesel engine can accurately measure the natural gas consumption and can thus control fuel consumption; it also possesses high replacement ratio. In addition, comparing to pure diesel engine, the hybrid-fuel engine has lower fuel consumption and thermal load,

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Zakharyan, Ekaterina A., Bagauddin H. Dolgiev, Nikolay G. Chigvariya, et al. "Treatment of long bone defects in children: Microsurgical transplantation of a fibular fragment for replacement of long bone defects: A systematic review." Pediatric Traumatology, Orthopaedics and Reconstructive Surgery 11, no. 1 (2023): 95–104. http://dx.doi.org/10.17816/ptors115230.

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BACKGROUND: The use of a vascularized fibular graft during reconstructive interventions on the limbs in children is a promising direction in the replacement of extensive bone defects in children. AIM: This study aimed to conduct a systematic review of the literature on microsurgical transplantation of a fragment of the fibula in the replacement of long bone defects in children. MATERIALS AND METHODS: Articles were searched in systems such as eLibrary, PubMed, and Google Scholar, with a search time range of 10 years (from 20122022, last query 11/08/2022). The following keywords were

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Sevryugina, N. S., and A. S. Apatenko. "Research of influence of thermal loadings on reliability of gas-diesel engines of transport and technological machines." Power and Autonomous equipment 2, no. 3 (2019): 121–28. http://dx.doi.org/10.32464/2618-8716-2019-2-3-121-128.

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Introduction: the factors determining the development trends of the machine-building industry on the example of modernization of the internal combustion engine are considered. The evaluation of the effectiveness of cooperation between manufacturers and the scientific potential of leading scientists in the development of designs of gas-diesel engines. The requirement of time of increase of ecology of internal combustion engines is proved, the reasons braking mass introduction of gas-diesel engines for transport and technological cars are revealed. The parameter of influence on the thermal load

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