Manufacturing and Testing of AC HTS-2 Coil for Small Electrical Motor

Zanegin, Sergey; Ivanov, Nikolay; Shishov, Dmitry; Shishov, Ivan M.; Kovalev, Konstantin; Зубко, В.

doi:10.1007/s10948-019-05226-1

Cited by 20 publications

(7 citation statements)

References 9 publications

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“…High-temperature electrolysis is the dissociation of steam at temperatures up to 850°C [22]. The method does not require the use of alkalis and is less energy-intensive compared to conventional electrolysis.…”

Section: Mixed Waysmentioning

confidence: 99%

Hydrogen production and green chemistry

Sidorenko

Kutkina

Назарова

et al. 2022

J. Phys.: Conf. Ser.

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This paper presents a study on the production of hydrogen and “green chemistry”. The introduction introduces the terminology and historical data, followed by the defining principles that describe hydrogen production methods using natural gas, coal, water and biomass as feedstock. Some basics of “green chemistry” are also given. The next section provides an analysis of all hydrogen production methods, the results of the analysis are recorded in a table that allows you to identify the most environmentally friendly solutions. In the conclusion it is stated that the results of the study indicated in the table make it possible to assess the compliance of each of the 13 methods for producing hydrogen with the principles of “green chemistry”, and the assessment and comments do not take into account the economic component of technologies, the main emphasis is on environmental protection.

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Section: Mixed Waysmentioning

confidence: 99%

Hydrogen production and green chemistry

Sidorenko

Kutkina

Назарова

et al. 2022

J. Phys.: Conf. Ser.

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“…An experimental technique has been developed and implemented to measure AC losses by direct electrical method in the HTS coil [15]. The special test bench for detailed measurements of losses in each tape of the linear part of the HTS coil winding of electric machine was developed.…”

Section: The Test Facilitymentioning

confidence: 99%

AC Losses Analysis in stack of 2G HTS tapes in a coil

Зубко¹,

Fetisov²,

Zanegin³

et al. 2020

Preprint

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The model coil with the racetrack geometry based on second generation (2G) High Temperature Superconducting (HTS) tapes has been developed for an electrical machine where a winding pack is a stack of 2G HTS tapes. It is important to evaluate transport current AC losses and possible methods to reduce them in a winding. In a device made of 2G HTS tapes, the main the AC losses are the hysteresis ones. Only numerical simulation permits to predict them in full. The FEM model for calculation of the hysteresis losses developed before for 2G HTS power cables was modified for a stack of the 2G HTS tapes in a coil. In this paper the methods to increase a computational speed are presented. Possible ways to reduce AC losses are discussed also. The details of the model and comparisons of calculations with measurements of the AC loss are presented.<br>

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“…Modern second-generation high-temperature superconductors (HTS) are composite tapes consisting of a large number of layers with different physical properties [1]. It is known that a lot of experimental coils are produced in different research centers [2][3][4][5][6][7][8][9]. However, the manufacturing technology for HTS tapes is still improving, which has led to a change in their properties.…”

Section: Introductionmentioning

confidence: 99%

The Application of X-ray Micro-CT in the Study of HTS Tape Coils

et al. 2022

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In the process of manufacturing products from high-temperature superconductors (HTS), quality control must be carried out. Traditionally, for HTS coils, electrical tests are carried out to determine critical current. In the case of an unacceptable result, it is necessary to determine the cause. Therefore, it is necessary to develop nondestructive testing methods. This article proposes a technology for manufacturing quality evaluation. It is based on determining the actual location of the tape and the gaps between the turns and rows of the coil and analyzing these values. For this purpose, samples were scanned using computed tomography (CT) with a Nordson Dage XD7600NT X-ray inspection system with a μCT module. The obtained data were analyzed using VolumeGraphics VGStudio 2.2 software. Furthermore, the proposed technology can be used as part of a predictive analysis of the state of HTS coils in the windings of electrical machines.

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Manufacturing and Testing of AC HTS-2 Coil for Small Electrical Motor

Cited by 20 publications

References 9 publications

Hydrogen production and green chemistry

Hydrogen production and green chemistry

AC Losses Analysis in stack of 2G HTS tapes in a coil

The Application of X-ray Micro-CT in the Study of HTS Tape Coils

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