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Journal articles on the topic 'Gas mixture generation'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Sklyarenko, E., and L. Vorobiov. "INSTALLATION FOR STEAM-GAS MIXTURE GENERATION AND CLEANING." Scientific heritage, no. 136 (May 7, 2024): 33–35. https://doi.org/10.5281/zenodo.11125120.

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The paper considers the possibility of generating a steam-gas mixture using a Venturi device. The schematic diagram of the installation and the method of calculating its main structural parameters are presented. Along with the formation of a vapor-gas mixture, this installation also separates it from the liquid phase, as well as cleans it from dust, solid carbon and other solid particles.

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TRAN, KHOA ANH TRAN, KHUONG BA DINH, THONG HUY CHAU, et al. "Investigation of High Harmonic Generation in Ar-Ne Gas Mixture." Romanian Journal of Physics 68, no. 9-10 (2023): 207. http://dx.doi.org/10.59277/romjphys.2023.68.207.

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"In this study, we experimentally investigate the variation of the phase matching condition of the high harmonic generation (HHG) process with pure argon gas and an argon-neon gas mixture. Phase-matched HHG is generated around the absorption edge of argon gas and then neon gas is added to the original argon gas. The pressure-dependent intensity of the harmonics produced by pure argon gas and the gas mixture is examined. We show that as more neon gas is added to the mixture, the phase matching of the higher order harmonics is less favourable than that of the lower order harmonics. Finally, the

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3

Kozlyuk, A. I., N. V. Karyagina, and V. L. Makarenko. "Process parameters in vapor-gas mixture generation." Combustion, Explosion, and Shock Waves 20, no. 5 (1985): 551–53. http://dx.doi.org/10.1007/bf00782249.

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4

Гайдачук, Віталій Євгенович, Ольга Володимирівна Шипуль, Сергій Олександрович Заклінський, Вадим Олегович Гарін, Олег Валерійович Трифонов та Сергій Ігорович Планковський. "Числове дослідження змішування в системі генерації газової суміші". Aerospace technic and technology, № 6 (29 листопада 2021): 39–48. http://dx.doi.org/10.32620/aktt.2021.6.05.

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The subject of research is a gas-dynamic process of mixture formation with a given component mass fraction during overflow through the mixer nozzles in the mixture generation system. The aim of the study is the scientific and experimental evaluation of the mixer technical solutions to ensure the accuracy and homogeneity of the gas mixture. The current work conducts numerical study on the flow of a gas flow through the mixer nozzles of the mixture generation system, ensuring its stoichiometric component composition and homogeneity. The problem is solved by developing adequate mathematical model

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Планковский, Сергей Игоревич, Ольга Владимировна Шипуль, Олег Валерьевич Трифонов та Сергей Александрович Заклинский. "АЛГОРИТМ УПРАВЛЕНИЯ СИСТЕМОЙ ГЕНЕРАЦИИ СМЕСИ ДЛЯ ПРЕЦИЗИ-ОННОЙ ТЕРМОИМПУЛЬСНОЙ ОБРАБОТКИ". Aerospace technic and technology, № 5 (8 листопада 2018): 58–66. http://dx.doi.org/10.32620/aktt.2018.5.09.

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The subjects of the study are methods and devices of generating gas mixtures with a specified accuracy and a high repeatability of the component dosing. The purpose of the article is to develop an algorithm for controlling the fuel mixture generation system for precision thermal pulse treatment. In that behalf, the research tasks are the improvement of the critical hole method with reference to the thermal pulse treatment and the methodology development of parameters assigning for mixture generation system ensuring high accuracy and repeatability of the dosing of its components and heat flows

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Postrzednik, Stefan. "Combined use of coal mine gases for efficient energy generation." Archives of Thermodynamics 37, no. 4 (2016): 37–53. http://dx.doi.org/10.1515/aoter-2016-0026.

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Abstract There are two basic types of coal mine gases: gas from demethanation of coal deposits, and ventilation gas; containing combustible ingredients (mainly methane, CH4). Effective use of these gases is an important technical and ecological issue (greenhouse gas emissions), mainly due to the presence of methane in these gases. Serious difficulties in this area (e.g. using them as the fuel for internal combustion (IC) engine) occur mainly in relation to the ventilation gas, whereas the gas from demethanation of coal deposits can be used directly as the fuel for internal combustion engines.

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Alonso, Maria Luz, Ane Espinazo, Rosa Maria Alonso, Jose Ignacio Lombraña, Jesús Izcara, and Josu Izaguirre. "New Generation of SF6-Free Medium-Voltage Switchgear for the Electrical Network: Stability and Toxicity Studies of Trans-1,1,1,4,4,4-Hexafluorobut-2-ene with N2 Gas Mixture." Processes 11, no. 1 (2023): 136. http://dx.doi.org/10.3390/pr11010136.

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Binary gas mixture of N2 and trans-1,1,1,4,4,4-hexafluorobut-2-ene (HFO4E) is presented as an alternative to SF6 in medium-voltage electrical equipment. Its stability was tested under different conditions. No change was observed in the gas mixture after a permanent AC voltage of 30 kV applied for two years or during the making operations with a standard load-break switch. The same behavior was obtained under dielectric tests, electrical arcs and temperature rise tests according to the IEC 62271-1:2011 standard. For all of these conditions, the concentration of HFO4E remains practically unchang

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8

Julius Gbenga Akinbomi, Cornelius Ayooluwarotimi Oresajo, Michael Olarenwaju Ogunjobi, et al. "Electricity generation potential of synthetic human hair, water nylon sachet and plastic waste mixtures." International Journal of Frontiers in Engineering and Technology Research 8, no. 1 (2025): 013–18. https://doi.org/10.53294/ijfetr.2025.8.1.0031.

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In order to address two critical challenges, including ineffective waste management and unreliable power supply faced by many developing countries; this study explored the electricity generation potential of three polymeric wastes (synthetic human hair, water nylon sachets, and plastic waste mixtures), using pyrolysis process. The study employed a pilot-scale batch pyrolysis system, consisting of a charcoal-fired furnace, a cylindrical galvanized iron pyrolysis reactor, a condenser, a gas scrubber, and a gas storage bag; for the wastes conversion into gaseous fuels to power a generator for ele

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Baránková, Hana, Ladislav Bardos, and Adela Bardos. "Non-Conventional Atmospheric Pressure Plasma Sources for Production of Hydrogen." MRS Advances 3, no. 18 (2018): 921–29. http://dx.doi.org/10.1557/adv.2018.103.

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ABSTRACTThe atmospheric pressure plasma sources with a coaxial geometry were used for generation of the radio frequency, microwave and pulsed dc plasmas inside water and aqueous solutions. Pulsed dc plasma generated in ethanol-water mixtures leads to production of the hydrogen-rich synthesis gas with hydrogen content up to 65 %. The effect of various plasma generation regimes on the performance of plasma, on the hydrogen production efficiency and on the hydrogen-rich synthesis gas production was examined. A role of the composition of the ethanol-water mixture was investigated.

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10

Osipova, N. N., and S. G. Kultiaev. "SUBSTANTIATION OF USE OF BUTANE FOR GASIFICATION OF OBJECTS." Russian Journal of Building Construction and Architecture, no. 3(47) (December 16, 2020): 46–54. http://dx.doi.org/10.36622/vstu.2020.47.3.004.

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Statement of the problem. The variable composition of liquefied petroleum gas has a significant impact on the operation of autonomous gas supply systems. The presence of the butane fraction under conditions of sub-zero temperatures leads to the cessation of the generation of the vapor phase in the tank, moisture condensation and the formation of ice and hydrate plugs.Results. The features of the use of technical butane in gas supply systems are considered. The composition of the gas-air mixture is recommended, taking into account the restrictions on deviations in the Wobbe number, ensuring the

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11

Bölkény, Ildi, Marianna Vadászi, and Ammar Saliby. "Permeability measurement theory in case of natural gas and natural gas-hydrogen mixture." Analecta Technica Szegedinensia 17, no. 4 (2023): 61–68. http://dx.doi.org/10.14232/analecta.2023.4.61-68.

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Green hydrogen, using renewable electricity that breaks down water molecules into hydrogen and oxygen, holds great promise for meeting global energy demand while contributing to climate policy goals. Interest in green hydrogen production technologies has increased considerably. This is because the potential uses of hydrogen cover many sectors, including power generation, manufacturing processes in steel and cement production, fuel cells for electric vehicles, and power grid stabilization. One possible use of green hydrogen is to blend it with natural gas and deliver it to end-users using exist

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12

SAYRAÇ, Muhammed. "N2 Molekülünden ve Bunun Ne Gazı ile Karışımından Sub-terawatt Lazer Sistemi kullanılarak Uyumlu XUV Radyasyonu Üretilmesi." Düzce Üniversitesi Bilim ve Teknoloji Dergisi 12, no. 1 (2024): 81–88. http://dx.doi.org/10.29130/dubited.799153.

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High harmonic generation (HHG) in pure nitrogen (N2) and its mixture with neon (Ne) gas was produced. The external laser field producing 6mJ optical pulse energy with 50fs pulse duration at 10Hz repetition rate was focused into a gas jet producing high harmonics. The N2 and Ne gas have different ionization potentials. The strong harmonic signal in pure N2 was produced, and a weak harmonic signal in a mixture of N2-Ne was generated compared to that in pure N2. The increase of Ne contribution in the N2-Ne mixture resulted in a decrease in harmonic signal. Harmonic signal increase and decrease we

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13

Zanotti, Michele, Sonia Freddi, and Luigi Sangaletti. "Synthetic Data Generation and Predictive Gas Mixture Analysis with a GFET Driven as a Virtual e-Nose." ECS Meeting Abstracts MA2025-01, no. 59 (2025): 2779. https://doi.org/10.1149/ma2025-01592779mtgabs.

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Virtual e-noses represent a novel tool for advanced gas sensing in combination with machine learning methods [1,2,3]. This study demonstrates the possibility of making an electronic nose with a single Graphene Field-Effect Transistor (GFET), composed of a monolayer graphene channel over a silicon nitride (Si₃N₄) dielectric, for high-performance gas sensing applications. Through the innovative concept of physical virtualization, a single GFET operates as a virtual array of chemiresistors, achieving high-throughput and versatile gas detection already at room temperature. By dynamically modulatin

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14

Шипуль, Ольга Володимирівна, Сергій Олександрович Заклінський, Володимир Вікторович Комбаров, Олексій Анатолійович Павленко та Вадим Олегович Гарін. "Числове та експериментальне дослідження наповнення резервуару компонентом газової суміші". Aerospace technic and technology, № 4 (27 серпня 2021): 63–72. http://dx.doi.org/10.32620/aktt.2021.4.09.

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The subject of the research is mathematical models of a gas-dynamic non-stationary process of filling a vessel with a component of a gas mixture. The aim of the study is the scientific and experimental substantiation of the choice of a model of filling a vessel with a component of a gas mixture with a given accuracy. The objectives of the study are to conduct full-scale experiments on filling the vessel with gas for further verification of the gas mixture generation control system, as well as in the development of adequate mathematical models of gas-dynamic flow, the analysis of simulation res

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15

Yap, Chew Pheng, Hwa Tiong Poh, and Wai Yip Fan. "Metal-free catalytic hydrogen production from a polymethylhydrosilane–water mixture." RSC Advances 6, no. 7 (2016): 5903–6. http://dx.doi.org/10.1039/c5ra23887k.

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16

Franchuk, Yurii, and Viktoriia Konovaliuk. "Use of gas generation to balance the electricity supply system." Ventilation, Illumination and Heat Gas Supply 50 (March 7, 2025): 55–63. https://doi.org/10.32347/2409-2606.2024.50.55-63.

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In a situation where Russia has destroyed a significant part of Ukraine's electricity infrastructure, and a significant part of nuclear, renewable and hydropower is either damaged or still not controlled in the occupied territories, the best option for balancing the system is to use the available gas generation capacities. At gas-fired power plants, it is possible to quickly increase and decrease the power of generating electricity. Also, the advantages are: the ability to quickly create additional generation facilities; maneuverability and independence from weather conditions; availability of

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17

Aizawa, Tatsuhiko, Imron Rsadi, and Ersyzario Edo Yunata. "High Density RF-DC Plasma Nitriding under Optimized Conditions by Plasma-Diagnosis." Applied Sciences 12, no. 8 (2022): 3706. http://dx.doi.org/10.3390/app12083706.

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This paper is concerned with plasma diagnosis on a N2-H2 gas mixture to determine the optimum parameters for the nitriding process. Plasma parameters such as pressure, RF-voltage, and DC-bias were varied for optimization. The active species such as N2+ and NH were identified in plasma diagnosis. In the N2-H2 gas mixture, hydrogen imposed a great influence on plasma generation. The small addition of a hydrogen molecule into the gas mixture resulted in the highest yield of N2+ ions and NH radicals; the optimum hydrogen content was 20% in the mixture. The austenitic stainless-steel type AISI304 w

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18

Chernova, Nadezhda, Sophia Kiseleva, Mikhail Vlaskin, Anatoliy Grigorenko, and Elizaveta Chunzhuk. "Capture CO₂ from flue gases during the cultivation of cyanobacteria/microalgae Arthrospira platensis." E3S Web of Conferences 555 (2024): 03002. http://dx.doi.org/10.1051/e3sconf/202455503002.

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Experimental studies and assessment of the state of cyanobacteria/microalgae Arthrospira platensis in a sustainable consortium with heterotrophic bacteria were carried out grown by bubbling culture medium with microalgae by a mixture of flue gases and air. The investigations were carried out in an experimental sample of a gas chamber with photobioreactors, which was supplemented by a designed flue gas generation system. The CO2 content in the gas mixture was 3, 6, and 8%. The resulting growth rate of microalgae biomass density was 0.21 g/l per day at CO2 concentrations of 3 and 6%, 0.27 g/l pe

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19

Vorobyev, Maxim, Oleg Kashinsky, Pavel Lobanov, and Aleksandr Chinak. "Regimes Of Bubble Generation In The Flow Of Viscous Liquid." Siberian Journal of Physics 10, no. 3 (2015): 70–75. http://dx.doi.org/10.54362/1818-7919-2015-10-3-70-75.

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Data of experimental study of the processes arising at gas injection through a capillary in to the liquid flow are presented. The characteristic modes of gas-liquid bubble mixture formation are investigated. Bubble coalescence near the capillary edge was shown to produce different modes. Glycerol was applied as working liquid. Its heating was made to change physical properties of working liquid.

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20

Shaposhnikov, A. D., A. E. Plastinin, and A. N. Borodin. "Assessment of the Explosion Hazard of Petroleum Product Spills in the Moscow Basin of Inland Waterways." Occupational Safety in Industry, no. 5 (May 2025): 27–33. https://doi.org/10.24000/0409-2961-2025-5-27-33.

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Explosions of oil and petroleum product spills are accompanied by the emission of significant volumes of overpressure, causing the impact of a sound wave on the environment, residents, and the normal functioning of their life-supporting systems. Therefore, the development of measures to prevent primarily processes of gas, vapor, and air mixture generation whose instantaneous ignition leads to an explosion is required. The study considers the issues of hazard assessment and using methods of explosion prevention in the case of oil and petroleum product spills at inland water facilities based on

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21

Azarov, S., V. Sydorenko, V. Ievlanov, and M. Havryliuk. "Analysis of Conditions and Mechanisms for Generation of Explosive Mixtures at an Early Stage of Chornobyl Accident." Nuclear and Radiation Safety, no. 4(72) (November 14, 2016): 39–44. http://dx.doi.org/10.32918/nrs.2016.4(72).06.

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The paper presents the scenario developed for an early stage of the accident progression to assess impact of highly explosive hydrogen on RBMK-1000 design. It was found out that the ratio between the speed of local generation of gaseous hydrogen and the speed of hydrogen spreading in the vapor-gas medium of the core is the determining factor for the occurrence of conditions of explosive vapor-air mixture in the core. Obtained data can be used in further studies to model the formation of explosive mixtures in the environment, the amount of air and water vapor in the analysis of explosive

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Kolovratník, Michal, Václav Petr, and Ondřej Bartoš. "A flue gas moisture separation for the CCS systems using membrane condensation." EPJ Web of Conferences 299 (2024): 01019. http://dx.doi.org/10.1051/epjconf/202429901019.

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Currently, in connection with the use of combustion with only pure oxygen (oxyfuel), the issue of energy-efficient moisture separation from flue gases before the storage or the use of CO2 is being intensively studied. One of the theoretically and experimentally verified options for separation is the condensation of moisture in different types of condensation exchangers: tube, shower, membrane and plate. An experimental measuring setup consisting of a gas mixture generation and condenser measuring section was built to compare individual condenser concepts. The basis of the mixture generation se

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23

You, Guo Qiang, Si Yuan Long, and Jili Zha. "A Novel Technique for On-Line Generation of Mg-Shielding Gas." Materials Science Forum 488-489 (July 2005): 77–80. http://dx.doi.org/10.4028/www.scientific.net/msf.488-489.77.

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A new technique capable of on-line generating SO2+CO2+N2 shielding gas via thermal chemical reaction between compressed air and a mixture of C and S powder was introduced in the present study. The test results in both laboratory and foundry indicate that the on-line generated gas is able to provide effective protection to Mg melting bath up to 730 oC as SF6+N2 shielding gas does, while its running cost is 30% less than of the latter.

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Vosmerikov, A. V., L. N. Vosmerikova, G. V. Echevsky, L. L. Korobitsyna, Ye G. Kodenev, and L. M. Velichkina. "Generation of Liquid Products from Natural Gas over Zeolite Catalysts." Eurasian Chemico-Technological Journal 5, no. 4 (2016): 271. http://dx.doi.org/10.18321/ectj314.

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<p>The main component of the natural gas is methane, whose molecules are characterized by a high chemical and thermal stability. It is impossible to perform the chemical transformation of natural gas into liquid organic compounds without applying highly active polyfunctional catalysts. Natural gas might be converted into liquid products in the presence of zeolite catalysts of pentasil family. Zeolite catalysts of ZSM-5 type were prepared to realize the process. They contained various amounts of Zn and Ga promoters introduced by ion exchange and impregnation. It has been shown that in the

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Bufetov, Igor, Dmitry Komissarov, Sergey Nefedov, et al. "He-Kr Gas-Discharge Laser Based on Hollow-Core Fiber." Photonics 11, no. 12 (2024): 1102. http://dx.doi.org/10.3390/photonics11121102.

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Recently, two completely different types of lasers—a fiber laser and a gas-discharge laser—were combined into a single device by demonstrating 2.03 µm laser generation in He-Xe plasma that was produced by a microwave discharge directly inside a hollow-core fiber. This new type of laser—a gas-discharge fiber laser—provides excellent opportunities to greatly enrich the wavelength range of the operation of fiber lasers. In this work, we investigate a He-Kr gas mixture as an active medium of this new type of laser. As a result, a He-Kr gas-discharge fiber laser is demonstrated for the first time.

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BEL'KOV, S. A., A. V. BESSARAB, A. V. VESELOV, et al. "Experimental study of line spectrum generation by argon dopant in DT-gas on ISKRA-5 facility." Laser and Particle Beams 17, no. 3 (1999): 377–83. http://dx.doi.org/10.1017/s026303469917304x.

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The experiments measuring the density of DT mixture compressed in indirect drive targets (X-ray targets) were conducted on the ISKRA-5 facility. The density was determined from the line broadening of H- and He-like Ar doped in DT-gas as a diagnostic substance. A series of three experiments with the X-ray targets having different shell thickness of capsule filled with DT + Ar mixture were carried out. In two of the three experiments, radiation spectra of Ar were recorded and the density of compressed gas was determined. The analysis of the experimental results for the X-ray target with a 280-μm

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27

Tukmakov, D. A. "Numerical study of the velocity distribution of the disperse component in the generation of a gas suspension flow by an electric field." Journal of Physics: Conference Series 2379, no. 1 (2022): 012022. http://dx.doi.org/10.1088/1742-6596/2379/1/012022.

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Abstract This paper presents a self-consistent mathematical model of the dynamics of an electrically charged dusty medium. The carrier medium was described as a viscous, compressible and heat-conducting gas. The simulated flow is self-consistent, the parameters of each of the mixture components are determined by changing the parameters of other components. The mathematical model took into account intercomponent momentum exchange and heat transfer between the dispersed component of the mixture and the gas. The equations of the mathematical model are supplemented with boundary conditions. The mi

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Gerdroodbary, Mostafa Barzegar, D. D. Ganji, Mohammad Taeibi-Rahni, B. Pruiti, and Rasoul Moradi. "Development of Knudsen thermal force for mass analysis of CH4/He gas mixture." International Journal of Modern Physics C 30, no. 01 (2019): 1950002. http://dx.doi.org/10.1142/s0129183119500025.

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Natural gas is known as the main source of energy and also contains significant and noble gases. Numerous researches have been performed to present novel methods for the detection and analysis of natural gas. In this study, Direct Simulation Monte Carlo (DSMC) method is used to evaluate the performance of a new micro gas sensor (MIKRA) for detection of helium in CH4/He gas mixture. In this sensor, the temperature difference of two arms inside a rectangular domain at low-pressure condition induces a Knudsen force which is proportional to physical properties of the gas. In order to define flow f

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29

Polansky, Jiri. "Thermodynamics Cycle of Gas-Cooled Fast Reactor." Mechanics and Mechanical Engineering 22, no. 2 (2020): 585–92. http://dx.doi.org/10.2478/mme-2018-0046.

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AbstractThis paper deals with the thermo-hydraulic aspect of gas cooled fast 4 generation reactor. The paper is focused on the comparison of direct and indirect strategy of thermodynamics cycle of helium cooled reactor from the thermodynamics and turbomachinary point of view. The analyses respect pressure looses at all major part of the equipment - reactor, heat exchanger, pipe lines, etc. The compressor and gas turbines efficiency are includes in calculation as well. The working fluid in primary circuit is helium. In the secondary circuit a mixture of helium and nitrogen is considered. The Cy

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Stephens, Susanna L., David P. Tew, Nicholas R. Walker, and Anthony C. Legon. "H3P⋯AgI: generation by laser-ablation and characterization by rotational spectroscopy and ab initio calculations." Physical Chemistry Chemical Physics 18, no. 28 (2016): 18971–77. http://dx.doi.org/10.1039/c6cp03512d.

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The new compound H<sub>3</sub>P⋯AgI has been synthesized in the gas phase by means of the reaction of laser-ablated silver metal with a pulse of gas consisting of a dilute mixture of ICF<sub>3</sub> and PH<sub>3</sub> in argon.

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Wang, Shuang, Wei Zhang, Yong-Qiang Feng, et al. "Entropy, Entransy and Exergy Analysis of a Dual-Loop Organic Rankine Cycle (DORC) Using Mixture Working Fluids for Engine Waste Heat Recovery." Energies 13, no. 6 (2020): 1301. http://dx.doi.org/10.3390/en13061301.

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The exergy, entropy, and entransy analysis for a dual-loop organic Rankine cycle (DORC) using a mixture of working fluids have been investigated in this study. A high-temperature (HT) loop was used to recover waste heat from internal combustion engine in 350 °C, and a low-temperature loop (LT) was used to absorb residual heat of engine exhaust gas and HT loop working fluids. Hexane/toluene, cyclopentane/toluene, and R123/toluene were selected as working fluid mixtures for HT loop, while R245fa/pentane was chosen for LT loop. Results indicated that the variation of entropy generation rate, entr

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Ikuta, Kazunari. "Ohmic Ignition of Alcohol-Ammonium Nitrate Mixture for Hot Light Gas Generation." Japanese Journal of Applied Physics 36, Part 2, No. 10B (1997): L1413—L1414. http://dx.doi.org/10.1143/jjap.36.l1413.

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Agroskin, V. Ya, B. G. Bravy, G. K. Vasiliev, et al. "An Effective Pulsed-Periodic Chemical HF(DF) Laser." Instruments and Experimental Techniques 64, no. 6 (2021): 830–33. http://dx.doi.org/10.1134/s0020441221060014.

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Abstract— A working process is proposed for an HF(DF) laser, in which evacuation of the reactor is completely excluded. The workflow consists of the following stages: (1) displacement of the reaction products, which are formed after initiation of the working mixture, by an inert gas and (2) subsequent displacement of the inert gas by the working mixture. A design solution is proposed for the system of gas puffing into the reactor. Gas is supplied through an annular slot at one of the reactor ends, which makes it possible to minimize the consumption of inert gas used for displacing the reaction

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C. S. W, Chan,, S. Lau, A. A. S. Husaini, et al. "Identification of methane-producing bacteria from palm oil mill sludge (POMS) with solid cud from ruminant stomach." Journal of Biochemistry, Microbiology and Biotechnology 2, no. 1 (2014): 23–26. http://dx.doi.org/10.54987/jobimb.v2i1.125.

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Biological generation in anaerobic environments such as enteric fermentation and anaerobic waste treatment from agriculture sector are the major contributor of methane gas which has the potential as biogas. The aimed of this study was to identify methane-producing bacteria in anaerobic vessel which contained a mixture of Palm Oil Mill Sludge (POMS) and solid cud taken from the first compartment of cowâ€™s stomach (1:2 and 2:1 ratio) as co-mixture. The co-mixture was incubated at 50 Â°C in a 2 L vessel with initial starter of 400 ml and sampling was conducted every 4 weeks interval during 12 we

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Кулаков, D. Kulakov, Щёголев, N. Shchegolev, Тумашев, and R. Tumashev. "Coal Mine Methane Utilization in Gas Turbine Units for Electricity and Heat Production." Safety in Technosphere 4, no. 5 (2015): 41–48. http://dx.doi.org/10.12737/16963.

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Coal mining is accompanied by the release of coal mine methane. Its emissions into the atmosphere within methane-air mixture have a negative impact on the ecological situation. The modern approach involves the use of methane-air-mixture for heat boilers or units to generate electricity. For the generation of heat and electrical energy the coal mine methane could be used in cogeneration gas turbine plants with an altered sequence of processes. Thermo — and gas dynamics studies were conducted in a wide range of parameters of gas turbine plants. For small power plants reco

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Qi, Geqing, Feng Yuan, Yue Zheng, Gang Li, Songli Yang, and Miao Zhang. "Research on the Aging Judgment Method of Electrical Performance of C₄F₇N/CO₂ Mixed Gases." Journal of Physics: Conference Series 2774, no. 1 (2024): 012061. http://dx.doi.org/10.1088/1742-6596/2774/1/012061.

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Abstract Perfluoroisobutyronitrile (C4F7N) gas exhibits favorable environmental characteristics and excellent electrical performance, which renders it a prominent subject of research in the development of new environmentally friendly insulation materials as a substitute for SF6 gas. In this study, the decomposition products of a gas mixture comprising 15% C4F7N and 85% CO2 were investigated within a 12kV ring main unit. A total of 140 arc tests were conducted on the gas mixture, allowing for the identification of the relationship between the generation of decomposition products and the number

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Chríbik, Andrej, Marián Poloni, Ľuboš Magdolen, Andrej Majkut, and Roman Protasov. "INFLUENCE OF THE COMPOSITION OF THE SYNTHETIZED GAS ON THE COMBUSTION PROCESS OF THE MIXTURE IN THE INTERNAL COMBUSTION ENGINE." Bulletin of the National Technical University «KhPI» Series: Engineering and CAD, no. 1 (June 7, 2023): 152–59. http://dx.doi.org/10.20998/2079-0775.2023.1.14.

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The article is devoted to the use of low-energy synthesized gas (synthesis gas) as a fuel for internal combustion engines, which in turn transmit mechanical energy to a cogeneration plant (combined production of heat and electricity). Such power plants allow you to achieve high values of total effective efficiency when using a conventional internal combustion engine with spark ignition. The analysed synthetic gases can be obtained by the method of gasification of household waste with access to air. In this work, synthesis gases were obtained in laboratory conditions. The composition of the com

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UHM, HAN S., EUN H. CHOI, GUANSUP CHO, and KI W. WHANG. "Plasma properties in a high-pressure gas mixture for a plasma display panel." Journal of Plasma Physics 67, no. 1 (2002): 49–58. http://dx.doi.org/10.1017/s0022377801001350.

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Electrical breakdown in a mixed gas is investigated. The plasma at breakdown is evaluated in terms of the mole fraction χ. The optimum condition for the highest plasma density is described in terms of the ionization energy and collisional cross-section of the mixed gas. The optimum mole fraction for the highest plasma density is found to be χ = 0.03 for the case of plasma generation in neon gas mixed with xenon for a plasma display panel. The optimum condition for the highest number of electronic excitations is also obtained.

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Sugarmen, C., A. Rotstein, U. Fisher, and J. Sinai. "Modification of Gas Turbines and Operation with Solar Produced Syngas." Journal of Solar Energy Engineering 126, no. 3 (2004): 867–71. http://dx.doi.org/10.1115/1.1758725.

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Solar energy can be utilized to drive chemical processes to produce syngas, a hydrogen rich fuel that can be used for power generation. ORMAT took part in the Solasys project in which syngas was produced by a reforming process driven by solar energy. The solar energy was concentrated in a volumetric receiver. ORMAT presented two modes of operation for introducing syngas to a gas turbine. One mode of “syngas only” and the second for utilization of mixtures of LPG and syngas. Modification of a gas turbine to be fueled only with syngas, incorporated modifications in the combustion chamber, fuel s

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Stejskalová, Květoslava, Pavel Bach, Erich Lippert, and Karel Mocek. "Effects of the Gas Phase Composition and Genesis of the Active Sodium Carbonate on Its Reactivity Towards Gaseous Mixture SO2 + NOx." Collection of Czechoslovak Chemical Communications 62, no. 3 (1997): 387–91. http://dx.doi.org/10.1135/cccc19970387.

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The reactivity of the solid active sodium carbonate towards gaseous mixture SO2 + NOx has been measured in the dependence on oxygen and carbon dioxide contents and on genesis of the solid substance. The fixed bed flow reactor working under integral conditions has been used. It was found that the reactivity of the active sodium carbonate of the 1st generation towards gaseous mixture SO2 + NOx is higher than the reactivity of the active sodium carbonate of the 2nd generation. In the temperature range of 130-180 °C the partial pressures of oxygen and carbon dioxide have no decisive influence on t

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Polyakovskyi, V. A. "Gas mixture explosion as a tool for generating impulsive disturbances." Geofizicheskiy Zhurnal 43, no. 4 (2021): 166–75. http://dx.doi.org/10.24028/gzh.v43i4.239968.

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The work is devoted to the development of a device for generating impulsive perturbations in soil massifs. It is proposed to use the explosion energy of a high-pressure acetylene-oxygen gas mixture as a source of impulse perturbations. Applying the standard method of measuring mechanical stresses and using piezoelectric sensors, it is obtained the stress fields occurring in the soils when an explosion of the gas mixture takes place. It is revealed that the dependences of the maximal stresses in the soil massif on the relative distance to the source, when the gas charge under high pressure acts

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Giaconia, Alberto, Irena Balog, and Giampaolo Caputo. "Hybridization of CSP Plants: Characterization of a Molten Salt Heater for Binary and Ternary Nitrate Salt Mixtures Fueled with Gas/Biogas Heaters." Energies 14, no. 22 (2021): 7652. http://dx.doi.org/10.3390/en14227652.

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Hybridization of CSP plants with alternative energy sources (fuels) represents a means to improve flexibility of operation, power dispatchability and utilization factor of the plant. New generation CSP plants make use of molten salts as Heat Transfer Fluid (HTF) besides Thermal Energy Storage (TES) medium. Therefore, proper interfaces should be developed to effectively transfer the heat from the back-up source to the molten salt. This paper presents the results obtained in the experimental validation of an innovative gas-fueled Molten Salt Heater (MSH) prototype. The objective of this research

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Baumgärtner, Max H., and Thomas Sattelmayer. "Improvement of the turn-down ratio of gas turbines by autothermal on board syngas generation." Journal of the Global Power and Propulsion Society 1 (June 30, 2017): D0HPA5. http://dx.doi.org/10.22261/d0hpa5.

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Abstract The low reactivity of natural gas leads to a sudden increase of carbon monoxide (CO) and unburned hydrocarbons (UHC) emissions below a certain load level, which limits the part load operation range of current utility gas turbines in combined cycle power plants (CCPP). The feasibility of catalytic autothermal syngas generation directly upstream of gas turbine burners to improve burn-out at low flame temperatures is studied in this paper. The adiabatic reformer is supplied with a mixture of natural gas, air and water and generates syngas with high reactivity, which results in better low

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Bezuglov, Roman, Vitaliy Volovikov, Vladimir Papin, Alexander Belov, Evgeniy Dyakonov, and Vladimir Mikhaylov. "Investigating the process of electric power generation from generator gas obtained by solid wastes processing." Известия высших учебных заведений. Электромеханика 67, no. 4 (2024): 125–33. https://doi.org/10.17213/0136-3360-2024-4-125-133.

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The article presents the analysis of the increase in electric power generation when adding the generator gas obtained by processing of solid waste to the main project fuel (coal and natural gas). Electric energy increase is caused by the in-crease in efficiency of TPP-210A steam boiler at joint combustion of coal (Donetsk anthracite culm) and generator gas obtained by thermal gasification of wastes. Preliminary software modelling of the thermal gasification process at its various parameters and types of oxidant has been carried out. Modelling of the gasification process was carried out in the

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Aoyagi, Reiji, Yoshika Sekine, Yuichiro Kaifuku, and Kunitoshi Matsunobu. "Development of Continuous Gas Generation Method for Hydrogen Chloride Using Azeotropic Hydrochloric Acid System." ChemEngineering 6, no. 1 (2022): 12. http://dx.doi.org/10.3390/chemengineering6010012.

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Standard gases are often prepared using high-pressure gas cylinders. However, it is difficult to accurately prepare a known concentration of hydrogen chloride (HCl) gas using this method because HCl is highly corrosive and adsorptive. In this study, a simple method for the continuous generation of HCl gas was developed using a diffusion tube containing hydrochloric acid and a nitrogen carrier gas. The concentration of HCl produced from this system was almost unstable, but constant gas generation was realized for several hours when azeotropic hydrochloric acid (20.6% HCl in water) and a tempera

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Węcel, Gabriel, Ziemowit Ostrowski, and Pawel Kozołub. "Absorption line black body distribution function evaluated with proper orthogonal decomposition for mixture of CO2 and H2O." International Journal of Numerical Methods for Heat & Fluid Flow 24, no. 4 (2014): 932–48. http://dx.doi.org/10.1108/hff-04-2013-0142.

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Purpose – The purpose of this paper is to present a new approach of evaluation of the absorption line black body distribution function (ALBDF) for a mixture of gases. Currently published correlations, which are used to reproduce the ALBDF, treat only single gases. Design/methodology/approach – A discrete form of the ALBDF is generated using line by line (LBL) calculations. The latest spectroscopic database HITEMP 2010 is used for the generation of the absorption coefficient histogram, which is cumulated later in order to produce a tabulated form of the ALBDF. The proper orthogonal decompositio

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Kryshtopa, Sviatoslav, Ruslans Smigins, and Liudmyla Kryshtopa. "A Study of Heat Recovery and Hydrogen Generation Systems for Methanol Engines." Energies 17, no. 21 (2024): 5266. http://dx.doi.org/10.3390/en17215266.

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Biofuels are the most essential types of alternative fuels, which currently have significant potential to reduce CO2 emissions compared to fossil fuels. Methanol is a more efficient fuel than petrol due to its physicochemical properties, such as a higher latent heat of vaporization, research octane number, and heat of combustion of the fuel–air mixture. Also, biomethanol is cheaper than traditional petrol and diesel fuel for agricultural countries. The authors have proposed a new approach to improve the characteristics and efficiency of methanol diesel engines by using biomethanol mixed with h

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Ojo, Abiodun A., and Amos Onasanya. "Closed Anaerobic Biotransformation Products of Organoarsenic Compounds in Fucus distichus." ISRN Environmental Chemistry 2013 (July 14, 2013): 1–7. http://dx.doi.org/10.1155/2013/684297.

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The closed anaerobic decomposition extracts of Fucus distichus incubated with seawater and sediment, and without sediment as control, were subjected to extractions and isolation on Sephadex LH 20 and Cellulose Thin Layer Chromatography. The decomposition extracts and isolates were analyzed by using both the Hydride Generation Gas Chromatography Atomic Absorption Spectrometry (HG-GC-AAS) and High Performance Liquid Chromatography Inductively Coupled Plasma Mass Spectrometry (HPLC-ICPMS) to identify the arsenic species in the equilibrium mixtures of the seaweed and filtrates separately. In the m

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Brown, Keith A., and David H. Maunder. "Exploitation of landfill gas: a UK perspective." Water Science and Technology 30, no. 12 (1994): 143–51. http://dx.doi.org/10.2166/wst.1994.0599.

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Landfill gas (LFG) is a flammable and potentially harmful mixture of methane, carbon dioxide and a large number of trace constituents produced when waste decays in landfill disposal sites. The need to prevent damage from landfill gas emissions has been recognised since the 1970s, and is now enshrined in landfill site regulations. Sophisticated gas control measures such as actively-pumped gas extraction wells and multi-layered liners are now being implemented on a wide scale. The exploitation of LFG as a fuel or feed stock can complement the objectives of environmental protection and, at the sa

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Netskina, Olga, Elena Tayban, Anna Ozerova, Oxana Komova, and Valentina Simagina. "Solid-State NaBH4/Co Composite as Hydrogen Storage Material: Effect of the Pressing Pressure on Hydrogen Generation Rate." Energies 12, no. 7 (2019): 1184. http://dx.doi.org/10.3390/en12071184.

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A solid-state NaBH4/Co composite has been employed as a hydrogen-generating material, as an alternative to sodium borohydride solutions, in the long storage of hydrogen. Hydrogen generation begins in the presence of cobalt-based catalysts, immediately after water is added to a NaBH4/Co composite, as a result of sodium borohydride hydrolysis. The hydrogen generation rate has been investigated as a function of the pressure used to press hydrogen-generating composites from a mechanical mixture of the hydride and cobalt chloride hexahydrate. The hydrogen generation rate was observed to increase wi

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