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Готові списки джерел за темами / Micro-torches

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Добірка наукової літератури з теми "Micro-torches"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Micro-torches"

1

Zubritsky, Elizabeth. "News from Micro-TAS: Tiny torches." Analytical Chemistry 70, no. 23 (1998): 776A. http://dx.doi.org/10.1021/ac982060h.

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2

Sawicki, Antoni. "Selected Properties of High-Frequency Electric Arc Initiators and Stabilisation Oscillators. Part 2. Devices with Compressed Electric Arc." Biuletyn Instytutu Spawalnictwa, no. 3 (June 2021): 49–60. http://dx.doi.org/10.17729/ebis.2021.3/5.

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Анотація:

The second part of the overview article discusses general features of the design and operation of selected industrial arc plasma torches. Because of their structural and operating differences, plasma torch power supply systems with internal and partly external arc are discussed separately. Particular attention was paid to the design of electric systems used for the initiation of arc discharges. Because of the fact that the operation of plasma torches with partly external arc is often accompanied by the formation of double arc, the article also presents measures and methods enabling the prevent

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3

Okovity, V. A., F. I. Panteleenko, V. V. Okovity, and V. M. Astashinsky. "Plasmatron for Coatings." Science & Technique 18, no. 1 (2019): 5–10. http://dx.doi.org/10.21122/2227-1031-2019-18-1-5-10.

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Анотація:

The paper analyzes reasons for application of plasma torches of special design for deposition of heat-resistant layers of thermal barrier coatings that contribute to minimum oxygen content in the zone of spraying. It contains detailed description of design for a plasma torch with a nozzle that allows better protection of a plasma stream against atmospheric exposure.Heated inert gas (Ar) is fed inside the nozzle along its walls through holes in its end part. Air around a plasma jet is displaced, additional compression of the plasma occurs and due to this oxygen content is decreased in a coating

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4

Heinemeyer, Andreas, Rebecca Berry, and Thomas J. Sloan. "Assessing soil compaction and micro-topography impacts of alternative heather cutting as compared to burning as part of grouse moor management on blanket bog." PeerJ 7 (July 18, 2019): e7298. http://dx.doi.org/10.7717/peerj.7298.

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Анотація:

Background Over 25% of the UK land area is covered by uplands, the bulk of which are comprised of blanket bog. This not only contains most of the UK’s terrestrial carbon stocks, but also represents 15% of this globally rare habitat. About 30% of UK blanket bog is managed for red grouse by encouraging ling heather (Calluna vulgaris) with rotational burning, which has been linked to habitat degradation, with reduced carbon storage and negative impacts on water storage and quality. Alternative cutting is currently being pursued as a potential restoration management. However, the often used heavy

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5

Gadow, Rainer. "Ceramic Layer Composites in Advanced Automotive Engineering and Biomedical Applications." Key Engineering Materials 333 (March 2007): 177–94. http://dx.doi.org/10.4028/www.scientific.net/kem.333.177.

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Анотація:

Light weight engineering and composite technologies are key strategies in modern product development in mechanical engineering as well as in biomedical applications, where innovation is driven by novel material concepts and surface functionalities. Designed or customized surface properties by advanced coating technologies are an important discipline in this context. Ceramic, metallurgical and cermet layers can be manufactured in a most appropriate way by high energetic thermokinetic deposition techniques like plasma spraying, electric arc and last not least by supersonic flame spraying (HVOF).

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6

Chernousenko, Olga, Leonid Butovsky, Olena Hranovska, Oleh Moroz, and Oleksandr Starchenko. "Determining basic characteristics of stabilizer micro torch burners for the combustion of ballasted fuel gases." Eastern-European Journal of Enterprise Technologies 5, no. 8 (113) (2021): 51–65. http://dx.doi.org/10.15587/1729-4061.2021.242984.

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Анотація:

This paper reports an experimental study into the combustion of alternative gases in the form of a mixture of propane-butane with air and carbon dioxide after a stabilizing flat module whose both sides are flown around with an airflow. The ballasted fuel was fed by jets into the airflow from the holes located on the side walls of the stabilizer. In this case, the fuel and air were partially premixed. It was established that when ballasting fuel with inert admixtures, the length of the torch and the maximum temperature gradually decreased while nitrogen oxide emissions decreased. With an increa

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7

Olga, Chernousenko, Butovsky Leonid, Hranovska Olena, Moroz Oleh, and Starchenko Oleksandr. "Determining basic characteristics of stabilizer micro torch burners for the combustion of ballasted fuel gases." Eastern-European Journal of Enterprise Technologies 5, no. 8 (113) (2021): 51–65. https://doi.org/10.15587/1729-4061.2021.242984.

Повний текст джерела

Анотація:

This paper reports an experimental study into the combustion of alternative gases in the form of a mixture of propane-butane with air and carbon dioxide after a stabilizing flat module whose both sides are flown around with an airflow. The ballasted fuel was fed by jets into the airflow from the holes located on the side walls of the stabilizer. In this case, the fuel and air were partially premixed. It was established that when ballasting fuel with inert admixtures, the length of the torch and the maximum temperature gradually decreased while nitrogen oxide emissions decreased. With an increa

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8

Ogawa, S. "Mechanisms of ignition and combustion instability in a scramjet combustor with micro-rocket torch using dynamic mode decomposition." Physics of Fluids 36, no. 10 (2024). http://dx.doi.org/10.1063/5.0228287.

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Анотація:

Achieving ignition and stable combustion in scramjet combustors, which have residence times of milliseconds, requires effective flame stabilization. Previous studies have explored stable forced ignition and flame holding using various igniters, such as micro-rocket and plasma jet torches. This study investigated the forced ignition and combustion instability of a scramjet combustor with a micro-rocket torch. Although the micro-rocket torch successfully ignited the combustor in previous experiments, combustion instabilities were observed in the cavity flame holder through OH* chemiluminescence

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9

Ogawa, Shinichiro. "Evaluation of the Effect of H2O Vitiation on Forced Ignition in a Scramjet Combustor Using a Forced Ignition Model." Journal of Engineering for Gas Turbines and Power, May 14, 2025, 1–12. https://doi.org/10.1115/1.4068663.

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Анотація:

Abstract Reliable ignition and flame stabilization are critical challenges in scramjet combustors, particularly under high-speed flow conditions. Forced ignition techniques, such as micro-rocket torches, have been investigated as alternatives to plasma jet (PJ) torches owing to their ability to inject high-temperature gases and active radicals directly into the combustion region. However, previous studies have primarily relied on ground experiments utilizing hydrogen combustion vitiated heaters, where H2O in vitiated air significantly affects ignition characteristics. To address this, the pres

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10

Hirayama, Y., and S. Ogawa. "Axisymmetric background-oriented schlieren measurement for cylindrical combustion flow in micro-rocket torches." Physics of Fluids 37, no. 2 (2025). https://doi.org/10.1063/5.0248981.

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Анотація:

A high-precision background-oriented schlieren (BOS) measurement technique was developed to analyze the density field of gases ejected from a micro-rocket torch in scramjet combustors. The BOS method was enhanced using an axisymmetric model and inverse Abel transforms, thereby allowing accurate density measurements in complex flow fields and addressing the limitations of traditional BOS applications. Validation tests confirmed the accuracy and stability of the BOS analysis, demonstrating its robustness against experimental noise and reliable density reconstruction. Experiments with varying equ

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Дисертації з теми "Micro-torches"

1

Zhang, Wencong. "Recherche numérique et expérimentale sur les propriétés de décharge et les caractéristiques de propagation électromagnétique dans les torches à plasma micro-ondes." Thesis, Toulouse, INPT, 2019. http://www.theses.fr/2019INPT0050.

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Анотація:

Ce travail vise à mieux comprendre les décharges dans les torches à plasma micro-ondes, en étudiant les caractéristiques de propagation des ondes électromagnétiques et les propriétés diélectriques de plasma dans les torches à plasma micro-ondes à base d’un guide d'onde rectangulaire dans différentes conditions de fonctionnement. En premier lieu, le mode de propagation des ondes électromagnétiques dans le tube à décharge plasma, leurs conditions d'existence ont été étudiés théoriquement étudiés et validés numériquement par un outil de modélisation électromagnétique rigoureux, avec l'hypothèse d

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Тези доповідей конференцій з теми "Micro-torches"

1

Liu, L., X. Huang, S. Li, Yao Lu, K. Chen, and Y. F. Lu. "Optical emission enhancement in laser-induced breakdown spectroscopy using micro-torches." In SPIE LASE, edited by Udo Klotzbach, Kunihiko Washio, and Craig B. Arnold. SPIE, 2016. http://dx.doi.org/10.1117/12.2214864.

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2

Lavaud, T., M. Vardelle, P. Fauchais, and J. Menuey. "Processing and Properties of Hybrid YSZ Coating Deposited by Thermal Plasma Directed Vapor Deposition." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p1036.

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Abstract The aim of this study is to develop for thermal barrier applications a new process in which coatings exhibit properties between those of APS and EBPVD. This process includes two conventional D.C. plasma torches working in a chamber whose pressure can vary between 30 and 100 kPa. Micro-sized yttria stabilized zirconia powders are injected in both plasma jets to vaporize them, at least partially, and produce finely-structured coatings from vapor and micro-droplets deposition. The torch arrangement allows separating the vapor and the very small particles (less than 1 µm) from the partial

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3

Tang, Z., I. Yaroslavski, P. Hartell, N. Bogdanovic, and A. Burgess. "Axial Injection Plasma Spraying using Micro and Nanopowder Slurries to Produce Dense Ceramic Coatings." In ITSC2008, edited by B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima, and G. Montavon. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2008. http://dx.doi.org/10.31399/asm.cp.itsc2008p0952.

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Анотація:

Abstract Plasma spraying was successfully applied for Thermal Barrier Coatings (TBCs), which typically possess a lamellar structure with a porosity of 5-20%. Control of the plasma process presents a big challenge when the goal is to achieve fully dense coatings, as required for some emerging applications such as solid oxide fuel cells (SOFCs) and dense TBCs. Fine powders produce finer lamellae, and result in denser coatings. However, powders finer than 10 microns are very difficult to feed consistently into a plasma torch. Liquid slurries offer a means to deliver fine particles to thermal spra

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