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Journal articles on the topic 'Descriptions of fuels'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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1

Wzorek, Małgorzata. "Optimization of fuels from waste composition with application of genetic algorithm." Waste Management & Research: The Journal for a Sustainable Circular Economy 32, no. 5 (2014): 423–33. http://dx.doi.org/10.1177/0734242x14529618.

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The objective of this article is to elaborate a method to optimize the composition of the fuels from sewage sludge (PBS fuel – fuel based on sewage sludge and coal slime, PBM fuel – fuel based on sewage sludge and meat and bone meal, PBT fuel – fuel based on sewage sludge and sawdust). As a tool for an optimization procedure, the use of a genetic algorithm is proposed. The optimization task involves the maximization of mass fraction of sewage sludge in a fuel developed on the basis of quality-based criteria for the use as an alternative fuel used by the cement industry. The selection criteria
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2

Riccardi, Cynthia L., Susan J. Prichard, David V. Sandberg, and Roger D. Ottmar. "Quantifying physical characteristics of wildland fuels using the Fuel Characteristic Classification SystemThis article is one of a selection of papers published in the Special Forum on the Fuel Characteristic Classification System." Canadian Journal of Forest Research 37, no. 12 (2007): 2413–20. http://dx.doi.org/10.1139/x07-175.

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Wildland fuel characteristics are used in many applications of operational fire predictions and to understand fire effects and behaviour. Even so, there is a shortage of information on basic fuel properties and the physical characteristics of wildland fuels. The Fuel Characteristic Classification System (FCCS) builds and catalogues fuelbed descriptions based on realistic physical properties derived from direct or indirect observation, inventories, expert knowledge, inference, or simulated fuel characteristics. The FCCS summarizes and calculates wildland fuel characteristics, including fuel dep
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3

Volkova, Liubov, Andrew L. Sullivan, Stephen H. Roxburgh, and Christopher J. Weston. "Visual assessments of fuel loads are poorly related to destructively sampled fuel loads in eucalypt forests." International Journal of Wildland Fire 25, no. 11 (2016): 1193. http://dx.doi.org/10.1071/wf15223.

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Fire managers around the world commonly use visual assessment of forest fuels to aid prediction of fire behaviour and plan for hazard reduction burning. In Australia, fuel hazard assessment guides also allow conversion of visual assessments to indicative fuel loads, which is essential for some rate of spread models and calculation of fireline intensity or emissions. The strength of correlation between fuel hazard and destructively sampled (directly measured) fuel load was tested using a comprehensive dataset of >500 points from across a range of eucalypt forests in Australia. Overall, there
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Fry, Danny L., and Scott L. Stephens. "Stand-level spatial dependence in an old-growth Jeffrey pine – mixed conifer forest, Sierra San Pedro Mártir, Mexico." Canadian Journal of Forest Research 40, no. 9 (2010): 1803–14. http://dx.doi.org/10.1139/x10-122.

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Descriptions of spatial patterns are important components of forest ecosystems, providing insights into functions and processes, yet basic spatial relationships between forest structures and fuels remain largely unexplored. We used standardized omnidirectional semivariance modeling to examine the spatial pattern of fuels and forest structure measured in a systematic nested plot grid covering 144 ha. Forest structure variables were spatially dependent at scales ranging from 62 to 572 m. Cross-variograms of fuels and forest structure showed both positive and negative correlations, ranging from 0
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Twi-Yeboah, Nigel, Dacosta Osei, and Michael K. Danquah. "Advances in Solar-Derived Chemical Fuel Systems." Energies 16, no. 6 (2023): 2864. http://dx.doi.org/10.3390/en16062864.

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Fuel cells are essential components of a large portfolio for developing a competitive, secure, and sustainable clean energy economy as they possess the ability to efficiently convert a variety of fuels into electricity. They convert chemical energy from fuels into electricity through chemical reactions with an oxidizing agent. Fuel cells are highly efficient and can produce electricity with very little pollution. They are used in a variety of applications, including powering buildings and vehicles, and as a backup power source. However, the infrastructure for fuel cells is still not fully deve
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6

Pettinari, M. Lucrecia, Roger D. Ottmar, Susan J. Prichard, Anne G. Andreu, and Emilio Chuvieco. "Development and mapping of fuel characteristics and associated fire potentials for South America." International Journal of Wildland Fire 23, no. 5 (2014): 643. http://dx.doi.org/10.1071/wf12137.

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The characteristics and spatial distribution of fuels are critical for assessing fire hazard, fuel consumption, greenhouse gas emissions and other fire effects. However, fuel maps are difficult to generate and update, because many regions of the world lack fuel descriptions or adequate mapped vegetation attributes to assign these fuelbeds spatially across the landscape. This paper presents a process to generate fuel maps for large areas using remotely sensed information and ancillary fuel characteristic data. The Fuel Characteristic Classification System was used to build fuelbeds for South Am
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7

Sandberg, David V., Roger D. Ottmar, and Geoffrey H. Cushon. "Characterizing fuels in the 21st Century." International Journal of Wildland Fire 10, no. 4 (2001): 381. http://dx.doi.org/10.1071/wf01036.

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This paper was presented at the conference ‘Integrating spatial technologies and ecological principles for a new age in fire management’, Boise, Idaho, USA, June 1999 The ongoing development of sophisticated fire behavior and effects models has demonstrated the need for a comprehensive system of fuel classification that more accurately captures the structural complexity and geographic diversity of fuelbeds. The Fire and Environmental Research Applications Team (FERA) of the USDA Forest Service, Pacific Northwest Research Station, is developing a national system of fuel characteristic classific
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8

Dunaev, A. V., and Yu V. Vorobyov. "Analysis of mechanical and chemical processes in the motor fuel activator." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 4 (April 22, 2025): 57–67. https://doi.org/10.33920/sel-10-2504-05.

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The need to reduce fuel consumption in the internal combustion engine is due to the constant increase in their cost, which occupies up to 20 % of the cost of agricultural products. For this purpose, fuel systems of internal combustion engines are being improved, and since pre-war times, magnetic and electromagnetic, electrostatic and cavitation treatment of fuels, and homogenization of water-fuel oil mixtures have been used. However, the greatest effi ciency in reducing fuel consumption is provided by the mechano-chemical and cavitation activator of motor fuels prof. Vorobyov Yu. V., according
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9

Govindaraju, Pavan B., and Matthias Ihme. "Formulation of optimal surrogate descriptions of fuels considering sensitivities to experimental uncertainties." Combustion and Flame 188 (February 2018): 337–56. http://dx.doi.org/10.1016/j.combustflame.2017.09.044.

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10

Bunge, C. D., A. Siahvashi, C. L. Hannon, B. Krass, and J. G. Brisson. "100 K Cooling Performance of a Modified Collins Cycle Cryocooler for In-space Applications." IOP Conference Series: Materials Science and Engineering 1327, no. 1 (2025): 012038. https://doi.org/10.1088/1757-899x/1327/1/012038.

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Abstract This paper presents 100 K cooling performance of a Modified Collins cycle cryocooler designed for in-space cooling applications. Descriptions of this lightweight, high efficiency, and power dense cryocooler design are included. Experimental results are shown of a single-stage floating piston design with active control designed to provide 100 W of cooling at temperatures below 100 K. Maintenance of in-space cryogenic fuels (liquid methane and liquid hydrogen) and liquid oxygen should be possible with this medium-scale, continuous flow architecture.
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11

Hill, Malcolm R. "Energy, Environment and Technology in The Former Ussr: The Case of Fossil-Fuelled Power Stations and Acid Rain Emissions." Energy & Environment 8, no. 4 (1997): 247–67. http://dx.doi.org/10.1177/0958305x9700800401.

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This paper provides perspectives on atmospheric pollution in the former USSR, and the technological factors which influence the levels of these emissions. The first part of the paper provides an estimate of the scale of atmospheric pollution in the former USSR, with particular reference to acid rain emissions in general and from the power generation industry in particular; followed by a discussion of recent and future fuel preferences in the former Soviet region. This discussion is then followed by descriptions of the combustion processes used in the power generation industry in the former USS
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12

simeti, mary taylor. "At the Prince's Table: Food in The Leopard." Gastronomica 7, no. 2 (2007): 64–70. http://dx.doi.org/10.1525/gfc.2007.7.2.64.

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The food so lovingly described by Tomasi di Lampedusa in his novel The Leopard is as rich in gastronomic history as it is in fragrance and flavor. The famous timbale gathers strands from all stages of Sicilian history, while the author also makes liberal use of other traditions such as that of pastries made by nuns. Each dish functions primarily as metaphor, most often for a decaying society and approaching death, but Lampedusa's own passionate love for good food fuels his sensuous descriptions, and his own tastes are revealed obliquely through the preferences of his protagonist.
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13

Nelson, Ralph M. "Re-analysis of wind and slope effects on flame characteristics of Mediterranean shrub fires." International Journal of Wildland Fire 24, no. 7 (2015): 1001. http://dx.doi.org/10.1071/wf14155.

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During the past 20 years, study of wind–slope-aided wildland fire behaviour with experimental burns and physical modelling methods has increased. As part of their continuing study of fires in Mediterranean shrub, F. Morandini and X. Silvani reported experimental temperatures, heat fluxes, flame characteristics and other fire behaviour variables measured on five wind–slope-aided fires. Calculating convection numbers and several convective Froude numbers, the authors concluded that these dimensionless variables for their two wind-dominated fires did not satisfy criteria identified in previous st
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14

Taskinen, Pekka, and Katri Avarmaa. "Simulation of Slag–Matte/Metal Equilibria for Complex and Low-Grade Raw Materials." Sustainability 13, no. 22 (2021): 12826. http://dx.doi.org/10.3390/su132212826.

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The depleting and increasingly complex mineral resources bring challenges into the area of metal production, bringing new boundary conditions to the smelting and refining processes. Thermodynamics of phases and equilibria are the key to the analysis of pyrometallurgical processes, enabling descriptions of their limiting boundary conditions. The raw material basis of non-ferrous metals needs an effective control of iron oxide fluxing due to the challenging fact that the targeted metal values of, e.g., copper, nickel, lead, and tin will exist as minority components in the smelter feeds compared
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15

Menely, Tobias. "“The Present Obfuscation”: Cowper's Task and the Time of Climate Change." PMLA/Publications of the Modern Language Association of America 127, no. 3 (2012): 477–92. http://dx.doi.org/10.1632/pmla.2012.127.3.477.

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Climate change, I argue, is a catastrophe that resists the revelation promised by apocalyptic narrative. My case study is William Cowper's poem The Task (1785), which I situate in two climatic contexts: the year of its composition, which saw meteorological extremes caused by the eruption of an Icelandic volcano, and an era of geologic modernity, the Anthropocene, which commenced with the industrial combustion of fossil fuels in the late eighteenth century. As volcanogenic haze migrates in Cowper's descriptions from the countryside to the greenhouse and the imperial city, the poet fails to iden
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16

Ahmed, Reem, Chandra Mohan Sinnathambi, and Usama Eldmerdash. "Dynamic Studies of Refinery Sludge Gasification in Updraft Reactor." Applied Mechanics and Materials 625 (September 2014): 431–34. http://dx.doi.org/10.4028/www.scientific.net/amm.625.431.

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Many papers have been published about the gasification of different biomass fuels in fixed bed reactor. To date, no experimental analysis is available in the open literature on gasification of refinery sludge. Therefore the descriptions of dynamic temperature in an updraft reactor for a dry refinery sludge gasification are investigated in details. The rate of the temperature change with operation time and the temperature profiles inside the reactor are taken for various equivalent ratios. The dynamic results show that increasing the ER from 0.195 to 0.244 shift the combustion zone peak tempera
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17

Keane, Robert E. "Describing wildland surface fuel loading for fire management: a review of approaches, methods and systems." International Journal of Wildland Fire 22, no. 1 (2013): 51. http://dx.doi.org/10.1071/wf11139.

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Wildland fuelbeds are exceptionally complex, consisting of diverse particles of many sizes, types and shapes with abundances and properties that are highly variable in time and space. This complexity makes it difficult to accurately describe, classify, sample and map fuels for wildland fire research and management. As a result, many fire behaviour and effects software prediction systems use a generalised description of fuels to simplify data collection and entry into various computer programs. There are several major fuel description systems currently used in the United States, Canada and Aust
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18

Kumar, Deepak. "A short review on the advancement in the development of TiO2 and ZnO based photo-anodes for the application of Dye-Sensitized Solar Cells (DSSCs)." Engineering Research Express 3, no. 4 (2021): 042004. http://dx.doi.org/10.1088/2631-8695/ac3b29.

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Abstract Population growth significantly expanding the boundaries of residential areas and living standards for humankind results in a tremendous increase in energy consumption. Unlike fossil fuels, which are found only in a few sites and non-renewable sources, solar energy is renewable and freely available in every part of the world. A dye-sensitized solar cell (DSSC) is a suitable electrochemical device to harness solar energy to produce power and is advantageous for its simplicity and inexpensive cost. Variations in photo-electrodes micro/nanostructure shape, doping, size, and crystal phase
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19

AIB, Ekejiuba. "Synergy of the Conventional Crude Oil and the FT-GTL Processes for Sustainable Synfuels Production: The Game Changer Approach-Phase One Category." Petroleum & Petrochemical Engineering Journal 7, no. 1 (2023): 1–30. http://dx.doi.org/10.23880/ppej-16000330.

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Petroleum was used in its raw state for various purposes in different parts of the world before the discovery of the overwhelming uses of the refined products following the first distillation of lamp oil/ illuminating fuel (kerosene age, 1859-1900) and the development of the internal combustion engines using gasoline or diesel (for vehicles, trucks and ships), the rise in commercial aviation (airplanes and rockets) and other devices, near the beginning of the twentieth century. The burning/combustion of petroleum fuels release greenhouse gases, mainly carbon dioxide (CO2), which creates enviro
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20

Kama, Zahraa Niema, and Hawraa Neama Jasim. "A Survey of Wireless Charging Methods and Optimization Techniques of Electric Vehicles." BIO Web of Conferences 97 (2024): 00031. http://dx.doi.org/10.1051/bioconf/20249700031.

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Since the 1990s, electric vehicles have been extensively utilized, with a focus on extending the life of storage systems, lowering costs, and providing flexible grid connectivity—a feature that is currently being studied. The substitution of alternative energy sources for conventional fuels has resulted in significant advancements in energy conservation and greenhouse gas emission reduction. Electric vehicle power sources are discovered in power plants. Traditionally, the power grid supplies the power plant with its electricity. A power plant that uses a hybrid solar-wind system can save more
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21

Zhang, Shidong, Steffen Hess, Thomas Kadyk, and Steven B. Beale. "(Invited) Mathematical Modeling of Electrochemical Cells: Promises, Problems, and Progress." ECS Meeting Abstracts MA2024-02, no. 44 (2024): 2963. https://doi.org/10.1149/ma2024-02442963mtgabs.

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Fuel cells and electrolyzers are key components in the energy transformation from non-renewable fossil fuels, to technologies based on renewable energy, such as solar and wind, which utilize or synthesize hydrogen (and oxygen) rich fuels/feedstocks in place of hydrocarbons. Following a brief introduction, a description of modeling activities, past, present and future, developed by the authors over many years, are described. Electrochemical conversion cells may be considered as natural problems in combined heat and mass transfer with the electrochemical reactions functioning as the main driving
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22

Echevarria Huamán, Ruth Nataly. "Optimized Simulation of CO2 Removal Process from Coal Fired Power Plants with MEA by Sensitivity Analysis in Aspen plus." Labor e Engenho 11, no. 2 (2017): 191. http://dx.doi.org/10.20396/labore.v11i2.8649743.

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The World Energy consumption has been increasing steadily since industrialization, this recent increase is also the major cause for the raise of CO2 concentration in the atmosphere. Fossil fuels play a central role in our energy consumption; actually the CCS technology and their operations in power systems must get a prominent role in reducing total CO2 emissions. An attempt to tackle the problem of solvent based Post Combustion Carbon Capture process optimization requires the availability of a rigorous process model along with a design methodology. During the modeling, much physical and chemi
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23

Naseiro Ramudo, Ana. "Documentary Sources on Hydrocarbon Exploitation in Franco’s Spain: The ENCASO Archives." Revue d'Histoire de l'Énergie N° 8, no. 2 (2022): 1d—13d. http://dx.doi.org/10.3917/jehrhe.008.0001d.

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The Empresa Nacional Calvo Sotelo de Combustibles Líquidos y Lubricantes (ENCASO) was a company created in 1942 within Spain’s National Institute of Industry (INI) by Minister Juan Antonio Suanzes, in an effort to control the country’s strategic energy sector. Established after the Spanish Civil War, it was created to produce hydrocarbons and energy-related products during the first phase of the Franco regime. Synthetic fuels and energy production became national political priorities during the postwar period due to Spain’s policies of economic and industrial autarchy. This paper focuses on th
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Phillip, Eunice, Jessica Langevin, Megan Davis, et al. "Improved cookstoves to reduce household air pollution exposure in sub-Saharan Africa: A scoping review of intervention studies." PLOS ONE 18, no. 4 (2023): e0284908. http://dx.doi.org/10.1371/journal.pone.0284908.

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Household air pollution (HAP), primarily from biomass fuels used for cooking, is associated with adverse health outcomes and premature mortality. It affects almost half of the world’s population, especially in low-income and low-resourced communities. However, many of the ’improved’ biomass cookstoves (ICS) aimed at reducing HAP lack empirical evidence of pollutant reduction and reliability in the field. A scoping review guided by the Joanna Briggs Institute framework was systematically conducted to explore and analyse the characteristics of cookstoves to assess the ICS available to meet the s
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25

Dixon, Robert K. "The U.S. Initiative on Joint Implementation: An Asia-Pacific Perspective." Asian Perspective 22, no. 2 (1998): 5–19. http://dx.doi.org/10.1353/apr.1998.a921096.

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Abstract: Economic, energy, and environmental security is a tripartite challenge to developing and developed countries of the Asia-Pacific region. Greenhouse gas emissions (GHG) from the burning of fossil fuels are growing rapidly in Asia. Flexible economic instruments, such as joint implementation (JI) and emissions trading, offer a means concomitantly to facilitate economic, energy, and environmental security. The U.S. Initiative on Joint Implementation (IJI) was established as a pilot program to facilitate voluntary project investments by U.S. entities to reduce GHG emissions worldwide. U.S
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26

Crosson, J. Brent. "Toward a Caribbean Genealogy of Energy: Cosmologies of Energy in Modernity’s First World." Religions 16, no. 2 (2025): 108. https://doi.org/10.3390/rel16020108.

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The story of the rise of “energy” usually centers on the Industrial Revolution and the coal-powered steam engine in nineteenth-century Western Europe. Although it often escapes notice, the Caribbean was actually the site of the first known use of a steam engine to power industrial manufacturing (on a sugar plantation) and the world’s first oil well (drilled by a US company in southern Trinidad). These “firsts” point toward energy’s roots in colonial and imperial projects of extraction in the Caribbean, revealing the centrality of race and the plantation in understanding energy capitalism and t
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27

SIDOROWICZ, Maciej, and Ireneusz PIELECHA. "Inflammability evaluation of hydrocarbon fuels mixtures formed directly in the combustion chamber." Combustion Engines 170, no. 3 (2017): 57–65. http://dx.doi.org/10.19206/ce-2017-309.

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The proposed article involves an investigation of the processes taking place during the preparation of mixed fuels that are combined directly before combustion. The fuel dose formed in this way must take into account the qualitative and quantitative composition of the fuels and the amount of air in the process. Given that liquid fuels similar to gasoline (e.g. methanol, ethanol, butanol) are characterized by different properties, their comparison would be useful in order to use their ratio to influence the combustion process. The process of fuel preparation plays a decisive role in this issue.
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Miras, Turysbay Dana Cristina Toncu*. "PHYSICO-CHEMICAL ANALYSIS OF ALCOHOL-KEROSENE BLEND FOR ALTERNATIVE JET FUELS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 4 (2017): 464–76. https://doi.org/10.5281/zenodo.556365.

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The aim of work is the research and development of new types of aviation fuels in particular obtaining alcohol-kerosene type fuels. This paper shows a full description of the product, based on its physical and chemical properties, with emphasis on blend advantages. Isopropanol retards fuel combustion, prevents knocking, and has almost zero NO emissions; it also controls rapid heat release and acts as emulsifier for water in kerosene. Preparation of isopropanol-kerosene aviation fuel was fast and easy. Except for flash point, the isopropanol addition doesn't change physical and rheological prop
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Čupera, Jiří, Pavel Sedlák, and Petr Karafiát. "Differences in rheological profile of regular diesel and bio-diesel fuel." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 58, no. 5 (2010): 67–74. http://dx.doi.org/10.11118/actaun201058050067.

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Biodiesel represents a promising alternative to regular fossil diesel. Fuel viscosity markedly influences injection, spraying and combustion, viscosity is thus critical factor to be evaluated and monitored. This work is focused on quantifying the differences in temperature dependent kinematic viscosity regular diesel fuel and B30 biodiesel fuel. The samples were assumed to be Newtonian fluids. Vis­co­si­ty was measured on a digital rotary viscometer in a range of 0 to 80 °C. More significant difference between minimum and maximum values was found in case of diesel fuel in comparison with biodi
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V., Saritha* Manoj Kumar Karnena. "ALTERNATIVE FUELS POSSIBILITY OR PARADOX." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 12 (2016): 248–65. https://doi.org/10.5281/zenodo.192612.

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Shortage of oil will be experienced by future decade’s .Fossil fuels have been during mankind over the centuries and have come to a stage where they have become a resource. Mankind cannot make requirement to search for alternative energy resources to keep mankind moving. Many authors previously have discussed the importance of alternative fuels. This review presents a detailed description of harness technology, cost analysis and advantage of alternative fuels like bio diesels, Hydrogen energy driven vehicle etc. adopting alternative energy sources will be beneficial for mankind and also will p
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KULCZYCKI, Andrzej, Wojciech DZIĘGIELEWSKI, and Dariusz OZIMINA. "THE INFLUENCE OF THE CHEMICAL STRUCTURE OF SYNTHETIC HYDROCARBONS AND ALCOHOLS ON THE LUBRICITY OF CI ENGINE FUELS AND AVIATION FUELS." Tribologia 273, no. 3 (2017): 91–100. http://dx.doi.org/10.5604/01.3001.0010.6140.

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The paper covers the mechanism of lubrication layer formation by fuels containing synthetic hydrocarbons and alcohols. Development of alternative fuels containing FAME, alcohols, and synthetic hydrocarbons has increased the interest in the mechanism of lubrication of fuelling systems parts. Fuel lubricity tests have been conducted using the HFRR and BOCLE testing rigs. Fuels under testing, both for CI engines and for aviation turbine ones, contained synthetic components: saturated hydrocarbons both of even and odd number of carbon atoms, and butanol, isomers. These components have been added t
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Thornton, Paul S., Charles A. Stanley, and Diva D. De Leon. "Congenital Hyperinsulinism: An Historical Perspective." Hormone Research in Paediatrics 95, no. 6 (2022): 631–37. http://dx.doi.org/10.1159/000526442.

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Congenital hyperinsulinism is the most common cause of persistent hypoglycemia in neonates, infants, and children. Since the first case descriptions in the 1950s, the field has advanced significantly. It was the development of the insulin radioimmunoassay by Yalow and Berson a decade later that made it possible to demonstrate that this form of persistent hypoglycemia was caused by insulin, and a few years later, Drash described the successful treatment of children with hyperinsulinism with the antihypertensive diazoxide, which until today remains the only approved treatment for hyperinsulinism
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Kondratenko, O. M., K. R. Umerenkova, A. M. Lievtierov, O. P. Strokov, and V. Yu Koloskov. "IMPROVEMENT OF THE MATHEMATICAL DESCRIPTION OF THERMOPHYSICAL PROPERTIES OF ALTERNATIVE MOTOR FUELS BASED ON THE MODIFIED THERMODYNAMIC THEORY OF DISTURBANCE." Internal Combustion Engines, no. 1 (September 13, 2023): 25–32. http://dx.doi.org/10.20998/0419-8719.2023.1.04.

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In the study, the purpose of which was to improve the mathematical apparatus based on the modified thermodynamic perturbation theory for describing the thermophysical characteristics of alternative motor fuels with a spherical configuration of interacting structural elements and an arbitrary aggregate state, the formal scheme of the modified perturbation theory was consistently constructed, the main characteristics of the model system were described, the parameters of the interaction potentials of the alternative fuel components were described, the thermophysical properties of the alternative
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Kondratenko, O. M., K. R. Umerenkova, A. M. Lievtierov, O. P. Strokov, and V. Yu Koloskov. "IMPROVEMENT OF THE MATHEMATICAL DESCRIPTION OF THERMOPHYSICAL PROPERTIES OF ALTERNATIVE MOTOR FUELS BASED ON THE MODIFIED THERMODYNAMIC THEORY OF DISTURBANCE. PART 2." Internal Combustion Engines, no. 2 (September 15, 2023): 54–63. http://dx.doi.org/10.20998/0419-8719.2023.2.07.

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In the study, the purpose of which was to improve the mathematical apparatus based on the modified thermodynamic perturbation theory for describing the thermophysical characteristics of alternative motor fuels with a spherical configuration of interacting structural elements and an arbitrary aggregate state, the formal scheme of the modified perturbation theory was consistently constructed, the main characteristics of the model system were described, the parameters of the interaction potentials of the alternative fuel components were described, the thermophysical properties of the alternative
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35

Linnik, A. "Paulownia as power culture." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 22, no. 92 (2020): 19–22. http://dx.doi.org/10.32718/nvlvet-a9204.

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The interest for production of energy crops, which biomass may be used as renewable fuel have been grown in 70 years of last century after dramatically rising price of fossil fuels. The energy crops growing have been also stimulated by environmental factors and approval some International political initiatives, like White Paper for a Community Strategy and Action Plan and The Kyoto protocol. After some decreasing, the area of energy crops in EU and North America countries are stabilized. In Ukraine in the last few years there is a gradual increase of part of energy consumption of biopropellant
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Kurzawska-Pietrowicz, Paula, and Remigiusz Jasiński. "A Review of Alternative Aviation Fuels." Energies 17, no. 16 (2024): 3890. http://dx.doi.org/10.3390/en17163890.

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One of the most promising mid-term solutions for reducing GHG emissions from the aviation sector is alternative aviation fuels, especially sustainable aviation fuels (SAFs). Regulations imposed by the Fit for 55 package to use 38% of SAFs until 2050 require a comprehensive analysis of SAFs and production pathway development with increased blending limits of alternative fuel. Within this review, a summary of key aspects of alternative aviation fuels is presented. The review contains a description of the certification process and certified production pathways with an analysis of feedstocks used
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Тарасов, Валерий, Valery Tarasov, Анатолий Соболенко, and Anatoly Sobolenko. "Impact of performance properties of regenerated engine oil on marine diesel wear when it runs on different grades of fuel." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2019, no. 4 (2019): 71–81. http://dx.doi.org/10.24143/2073-1574-2019-4-71-81.

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The article focuses on studying the operational properties of regenerated engine oils in terms of the impact on the wear of friction units of the trunk diesel engine when it works on the fuel of different grades. There have been built generalized models of marine diesel parts wear on the basis of experimental studies. Diesel 2Ч10,5/13 was used for experiments. Wear was determined by the method of artificial bases and by weighting. Four groups of the main indicators 
 of fuels used on ships have been considered (depending on the quality indicator). The first group includes distillate fuels
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38

Smyshlyaeva, K. I., N. K. Kondrasheva, and V. A. Rudko. "Description of the stability of residual marine fuel using ternary phase diagrams and SARA analysis." E3S Web of Conferences 266 (2021): 02006. http://dx.doi.org/10.1051/e3sconf/202126602006.

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The results of the analysis of the properties of components of residual marine fuels (RMF) are described. The stability areas of marine fuels are determined using ternary phase diagrams VisRes - ULSD – LGOCC, Asphalt – ULSD – LCGO, Asphalt – ULSD – LGODC. The graphic method for determining the stability of A.B. Stankiewicz based on SARA analysis is used to describe the stability of RMF on the basis of VisRes - ULSD – LGOCC. The areas of stability, instability, and metastability of marine fuel are presented on the graph according to the Stankiewicz method, which can be used to predict the stabi
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39

Ciupek, Bartosz, Rafał Urbaniak, and Karolina Perz. "Analysis of technical parameters of black coals used in low–power boilers." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 12 (2018): 386–89. http://dx.doi.org/10.24136/atest.2018.418.

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The article presents the results of technical analysis of black coals available in retail sales in Poland. A comprehensive list of fuel technical parameters and analysis of the possibilities of their use in low-power boilers was supported by the experience of the authors of the study. A thorough analysis of technical parameters of fuels concerned basic thermodynamic parameters of fuels responsible for the quality of thermal processes occurring in boilers. The collected data is presented in a uniform description of the current state of the sold fuels. In the last point, the researchers were loo
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Serdyukova, E. Yu, Yu V. Kozhevnikova, A. A. Perminova, and L. R. Galikeeva. "Possibility of Liquid Biocomponent Usage in the Production of Commercial Diesel Fuel." Chemistry and Technology of Fuels and Oils 630, no. 2 (2022): 3–7. http://dx.doi.org/10.32935/0023-1169-2022-630-2-3-7.

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The article presents a description of the technique for compounding petroleum diesel fuel and a fraction of 180-240°C obtained from a liquid bioproduct of pyrolysis of plant materials. The physicochemical properties and group chemical composition of the fraction of plant origin have been studied. The results of the physicochemical properties of the resulting mixtures of diesel fuel are presented. Permissible concentrations of the biocomponent in the preparation of mixed biodiesel fuels have been established.
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41

Kondratenko, Olexandr, Ksenia Umerenkova, Volodymyr Koloskov, Hanna Koloskova, Olexandr Strokov, and Olha Lytvynenko. "DEVELOPMENT AND GENERALIZATION OF THE METHOD FOR CALCULATING THERMODYNAMIC PROPERTIES AND PHASE EQUILIBRIUM IN HYDROCARBON MIXTURES AS FUELS FOR RECIPROCATING ICE WITH THE PURPOSE OF THEIR ECOLOGIZATION." Technogenic and Ecological Safety, no. 14(2/2023) (November 29, 2023): 3–15. http://dx.doi.org/10.52363/2522-1892.2023.2.1.

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In the article, which shows the results of the authors' own research, the purpose of which was the development of a mathematical apparatus built on the basis of a modified perturbation theory, and its application to describe the thermophysical characteristics of alternative motor fuels of arbitrary aggregate state, which are characterized by a spherical configuration of interacting structural elements , the following tasks regarding the improvement of the mathematical apparatus developed earlier, presented in the open press and tested at a number of scientific and technical conferences of the
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Kondratenko, Olexandr, Ksenia Umerenkova, Volodymyr Koloskov, Hanna Koloskova, Olexandr Strokov, and Olha Lytvynenko. "DEVELOPMENT AND GENERALIZATION OF THE METHOD FOR CALCULATING THERMODYNAMIC PROPERTIES AND PHASE EQUILIBRIUM IN HYDROCARBON MIXTURES AS FUELS FOR RECIPROCATING ICE WITH THE PURPOSE OF THEIR ECOLOGIZATION." Technogenic and ecological safety 14(2/2023) (November 29, 2023): 3–15. https://doi.org/10.52363/2522-1892.2023.2.1.

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In the article, which shows the results of the authors' own research, the purpose of which was the development of a mathematical apparatus built on the basis of a modified perturbation theory, and its application to describe the thermophysical characteristics of alternative motor fuels of arbitrary aggregate state, which are characterized by a spherical configuration of interacting structural elements , the following tasks regarding the improvement of the mathematical apparatus developed earlier, presented in the open press and tested at a number of scientific and technical conferences of the
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43

Sangwan, Preeti, and Nibedita Banik. "Study on geosynchronous satellite launch vehicle propellants and combustion mechanism of each stage." E3S Web of Conferences 391 (2023): 01030. http://dx.doi.org/10.1051/e3sconf/202339101030.

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GSLV is a “geosynchronous satellite launch vehicle” which aims at launching space objects into GTO- Geosynchronous transfer orbit. This paper provides a brief idea of the chemistry of propellants used in all three stages and strap-on motors of geosynchronous satellite launch vehicles and their combustion mechanism. It includes all series of GSLVs launched till now and a description of criteria for choosing fuel. This paper also includes a brief description on hydrazine which is a basic part of so many propellant combinations. Furthermore, it includes basic reasons which result in unsuccessful
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44

Lönartz, Mara I., Jenna Poonoosamy, Yuankai Yang, Naila Ait-Mouheb, Guido Deissmann, and Dirk Bosbach. "Deciphering porosity clogging at barrier interfaces in deep geological repositories for radioactive waste." Safety of Nuclear Waste Disposal 1 (November 10, 2021): 181–82. http://dx.doi.org/10.5194/sand-1-181-2021.

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Abstract. The disposal of spent nuclear fuels and high-level radioactive wastes in deep geological repositories represents one of the greatest scientific-technical and societal challenges of our times. Most disposal concepts rely on a multibarrier system, consisting of a combination of engineered materials, geotechnical and geological barriers to provide a safe containment of the radioactive waste to protect humans and the environment against dangers arising from ionizing radiation. A reliable safety assessment of a deep geological repository over assessment time scales of several 100 000 year
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Sorrentino, Antonio, Monisha Sivasankaran, and Tanja Vidakovic-Koch. "Understanding the Z-Shape Behavior of H2 in Electrochemical CO2 Reduction: Further Insights to Drive the Selectivity." ECS Meeting Abstracts MA2025-01, no. 41 (2025): 2201. https://doi.org/10.1149/ma2025-01412201mtgabs.

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Electrochemical carbon dioxide reduction (eCO2RR) holds the promise of transforming carbon dioxide into useful chemicals and fuels. While the hydrogen evolution reaction (HER) often occurs as an unwanted side reaction, it can be desirable in certain applications, such as syngas production, where a specific CO and hydrogen mixture is needed. Understanding the interplay between eCO2RR and HER as well as the influence of mass transport and electrolyte features is crucial for optimizing both reactions and achieving desired product distributions. When using silver and gold catalysts in aqueous elec
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Dunaev, Anatoliy V., Aleksandr E. Lomovskikh, Igor’ F. Pustovoy, and Aleksandr S. Sayapin. "APPROBATED IMPROVEMENT OF THE SERVICE OF AUTOMOTIVE ENGINES." Tekhnicheskiy servis mashin 1, no. 142 (2021): 24–33. http://dx.doi.org/10.22314/2618-8287-2020-59-1-24-33.

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The need to increase the service life, efficiency and environmental friendliness of automotive engines leads to innovations in their maintenance and repair. Fuels are modified by mechanic-chemistry, hydrodynamic and acoustic cavitation, triboelectrization, and joint application of these methods. The most effective activators are described by Yu. V. Vorob’yov. (Research purpose) The research purpose is in summarizing the results of tests of activators by Yu. I. Vorobyov, identifying the features of their modification of motor fuels and outlining measures to ensure their stable operation in diff
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Beavis, Nicholas J., Salah S. Ibrahim, and Weeratunge Malalasekera. "Impingement characteristics of an early injection gasoline direct injection engine: A numerical study." International Journal of Engine Research 18, no. 4 (2016): 378–93. http://dx.doi.org/10.1177/1468087416663325.

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This article describes the use of a Lagrangian discrete droplet model to evaluate the liquid fuel impingement characteristics on the internal surfaces of an early injection gasoline direct injection engine. This study focuses on fuel impingement on the intake valve and cylinder liner between start of injection and 20° after start of injection using both a single- and a multi-component fuels. The single-component fuel used was iso-octane and the multi-component fuel contained fractions of iso-pentane, iso-octane and n-decane to represent the light, medium and heavy fuel fractions of gasoline, r
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48

Sciatti, F., P. Tamburrano, P. De Palma, E. Distaso, and R. Amirante. "Detailed simulations of an aircraft fuel system by means of Simulink." Journal of Physics: Conference Series 2385, no. 1 (2022): 012033. http://dx.doi.org/10.1088/1742-6596/2385/1/012033.

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Abstract The fuel system is one of the most important and complex parts of aircraft, being tasked with suppling the correct quantity of fuel to the aircraft engine during all operative conditions, from flight to ground operation. It must operate efficiently in any condition to guarantee safety and reliability. A fuel system for kerosene-based fuels (i.e., jet fuels) is a combination of hydraulic components, namely, tanks, pumps, bypass valves, safety valves, servovalves. The aim of this paper is to provide an accurate simulation model of an entire fuel system for gas turbine (turboprop and tur
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49

Lanotte, Alfredo, Vincenzo De Bellis, and Enrica Malfi. "Potential of hydrogen addition to natural gas or ammonia as a solution towards low- or zero-carbon fuel for the supply of a small turbocharged SI engine." E3S Web of Conferences 312 (2021): 07022. http://dx.doi.org/10.1051/e3sconf/202131207022.

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Nowadays there is an increasing interest in carbon-free fuels such as ammonia and hydrogen. Those fuels, on one hand, allow to drastically reduce CO2 emissions, helping to comply with the increasingly stringent emission regulations, and, on the other hand, could lead to possible advantages in performances if blended with conventional fuels. In this regard, this work focuses on the 1D numerical study of an internal combustion engine supplied with different fuels: pure gasoline, and blends of methane-hydrogen and ammonia-hydrogen. The analyses are carried out with reference to a downsized turboc
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Chávez-Durán, Álvaro Agustín, Mariano García, Miguel Olvera-Vargas, et al. "Forest Canopy Fuel Loads Mapping Using Unmanned Aerial Vehicle High-Resolution Red, Green, Blue and Multispectral Imagery." Forests 15, no. 2 (2024): 225. http://dx.doi.org/10.3390/f15020225.

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Canopy fuels determine the characteristics of the entire complex of forest fuels due to their constant changes triggered by the environment; therefore, the development of appropriate strategies for fire management and fire risk reduction requires an accurate description of canopy forest fuels. This paper presents a method for mapping the spatial distribution of canopy fuel loads (CFLs) in alignment with their natural variability and three-dimensional spatial distribution. The approach leverages an object-based machine learning framework with UAV multispectral data and photogrammetric point clo
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