Prototyping and Study of Jet Systems for Developing Mesh Turbomachines

Sazonov, Yuri Appolonievich; Mokhov, M. A.; Gryaznova, Inna Vladimirovna; Voronova, Victoria Vasilievna; Mulenko, Vladimir V.; Tumanyan, Khoren Arturovich; Франков, М. А.; Balaka, Nikolay Nikolaevich

doi:10.15866/ireme.v15i7.21163

Cited by 3 publications

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“…Also, a variant of "A jet deviceturbomachine" can be considered [1][2][3][4][5][6]51]. A brief discussion of the turbine mathematical model uses the following symbols: the absolute gas temperature at the turbine inlet is 𝑇 0 , the adiabatic exponent is 𝑘 0 , the gas constant is, 𝑅 0 the average isobaric heat capacity is 𝑐 𝑝0 for the flow through the turbine, the efficiency factor for the turbine is, 𝜂 0 the mass flow of gas through the turbine is 𝑄 ̇0., the gas pressure at the turbine inlet is 𝑃 0 and at the outlet is 𝑃 2 .…”

Section: Discussion Of Schematics Of Jet Devices Within Advancing Eul...mentioning

confidence: 99%

“…These fundamental and applied scientific studies use the well-known methodology [47] with an interdisciplinary approach, always considering a set of the following processes and conditions:  Blade and vortex, pump (or compressor), and turbine workflows;  Coalescence and dispersion processes, cavitation in liquid and gas-liquid mixtures, separation in multiphase media;  Workflows in the presence of solid particles in a fluid flow, at a point or distributed power input, at series and parallel connection of machines, in one-stage or multistage machinery, flow processes considering hydraulic friction and impact losses with partial pressure recovery at constant and variable resistance coefficients; This study discusses the development of mesh-jet devices, including advancing Euler's ideas and proposed as a continuation to the already published materials [1][2][3][4][5][6]. The research results are used to develop new models and prototypes.…”

Section: Methodsmentioning

confidence: 99%

“…A summary of the scientific research results performed in 2020 and 2022 [1][2][3][4][5][6][55][56][57][58][59] makes it possible to state the following:…”

Section: Some Generalizationsmentioning

confidence: 99%

“…In current conditions, there is a need to solve the urgent problem of energy savings in the implementation of production processes, including developing oil and gas fields. The laboratories at Gubkin University solve this problem through a series of research studies on developing promising jet devices and turbomachines [1][2][3][4][5][6]. Their flow channels have a mesh structure.…”

Section: Introductionmentioning

confidence: 99%

“…Flowchart to explain the research methodologyThis paper presents the results of calculations and computer simulation. As part of the ongoing research, laboratory tests of micromodels on bench installations were conducted in 2020-2021 and published earlier[1][2][3][4][5]. Such physical laboratory experiments test individual scientific principles and the performance of nodes and elements.…”

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confidence: 99%

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Computational Fluid Dynamics (CFD) Simulation of Mesh Jet Devices for Promising Energy-Saving Technologies

et al. 2022

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This paper discusses the development of mesh jet devices for hybrid turbines, including developing Euler's ideas, and considers a new patented version of a mesh jet device designed to create guiding devices for turbines. The research methods are based on simulations using CFD and additive technologies. An intermediate conclusion is that a new scientific direction for the study and creation of mesh jet control systems has been formed as part of developing Euler's ideas. Calculation methods showed possible improvements in the performance of jet devices, including the use of curved tubes proposed by Euler to create turbines. This study shows that at the nozzle or mixing chamber outlet, the jet can deflect by an angle from +180° to -180° within the geometric sphere. This study also shows that the scientific groundwork prepared by Euler is not yet fully understood. The ongoing research mainly focuses on creating multi-mode jet devices designed for control systems for mesh turbomachines. Here, power consumption from an external source can be reduced to save energy. Some results of ongoing studies can also be applied in other industries (for example, when creating hybrid propulsion systems or propulsors). The scientific novelty of this work consists of improving the design methodology of jet machinery and turbomachines. Doi: 10.28991/CEJ-2022-08-12-06 Full Text: PDF

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Section: Discussion Of Schematics Of Jet Devices Within Advancing Eul...mentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…A summary of the scientific research results performed in 2020 and 2022 [1][2][3][4][5][6][55][56][57][58][59] makes it possible to state the following:…”

Section: Some Generalizationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Computational Fluid Dynamics (CFD) Simulation of Mesh Jet Devices for Promising Energy-Saving Technologies

et al. 2022

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Simulation of Hybrid Mesh Turbomachinery using CFD and Additive Technologies

Sazonov

Mokhov²,

Gryaznova³

et al. 2022

Civ Eng J

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This paper develops schematics and evaluates the performance of hybrid mesh turbomachinery at the patenting stage of individual technical solutions. This type of turbomachine uses reduced-sized blades and also forms flow channels with a mesh structure between the blades. The research methods are based on simulations using computational fluid dynamics (CFD) and additive technologies. An intermediate conclusion is that a new scientific direction for investigating and creating hybrid mesh turbomachinery equipped with mesh jet control systems was formed to develop Euler's ideas. This paper describes new possibilities for the simultaneous implementation of two workflows in a single impeller: 1) Turbine workflow, and 2) Compressor workflow. Calculation methods showed possible improvements in the performance of the new turbomachines. This paper considers options for mesh turbomachine operation in the two-stage gas generator mode with partial involvement of atmospheric air in the workflow. Preliminary calculations based on examples show that it is possible to expect a two- to four-times increase in thrust when using hybrid mesh turbomachines. Ongoing studies mainly focus on developing multi-mode turbomachinery that works in complicated conditions, such as offshore oil and gas fields, but some research results are applicable in other industries, for example, in developing hybrid propulsion systems or propulsors. Doi: 10.28991/CEJ-2022-08-12-011 Full Text: PDF

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Analysis of the vibration behaviour of a gas turbine during operation

Abdelmalek,

Bouchakour,

Lairedj

et al. 2024

SEES

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The vibratory behaviour of the gas turbine during operation is analysed in this article. The modern method consists of studying the state of a machine during its operation, to intervene only when the parameters allow it. However, experience has shown that vibration analysis is the most widely used technique to make a reliable diagnosis and to detect the appearance and evolution of most mechanical and hydraulic defects. In our study, we applied the method of vibration analysis of the gas turbine line using monitoring methods to diagnose mechanical defects in shaft bearings. In this sense, the experimental was carried out by measuring and monitoring the level of vibration produced by the turbine, an indicator on its condition was obtained. Should the rise in vibration levels of the machine facilitate the identification of a fault, the subsequent analysis of the machine's vibration characteristics will enable the source of the fault to be determined. It is then possible to determine with accuracy the time before the situation becomes critical.

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Prototyping and Study of Jet Systems for Developing Mesh Turbomachines

Cited by 3 publications

References 0 publications

Computational Fluid Dynamics (CFD) Simulation of Mesh Jet Devices for Promising Energy-Saving Technologies

Computational Fluid Dynamics (CFD) Simulation of Mesh Jet Devices for Promising Energy-Saving Technologies

Simulation of Hybrid Mesh Turbomachinery using CFD and Additive Technologies

Analysis of the vibration behaviour of a gas turbine during operation

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