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Developing and testing of rotor with HTS coils for electric machine

Kovalev Konstantin, Ivanov Nickolay, Rusanov Denis, Kuznetsov Gennady, Shishov Dmitry, Zanegin Sergey

Przegląd Elektrotechniczny

2020

R. 96, nr 1

78--81

The integration of high temperature superconducting materials in power systems is still quite limited. The transition from the element to the system is not trivial, because the behaviour of an isolated element (tape, coil) can be quite different when it is integrated into a system (rotor or armature of machine). In this paper high temperature superconducting field coils and test results are described. Besides results of experimental research of assembled rotor of fully superconducting machine cooled with liquid nitrogen also provided in the paper. Results are compared to 3D FEM simulation of magnetic field for a separate coil and an assembled rotor.

W artykule opisano wykorzystanie nadprzewodnika wysokotemperaturowego do konstrukcji uzwojenia wirnika maszyny chłodzonej ciekłym azotem.

Water deficits in the water economics complex of Crimea

Dunaieva Ielizaveta, Popowych Valentina, Melnichuk Aleksandr, Terleev Vitaly, Nikonorov Aleksandr, Mirschel Wilfried, Topaj Alex, Shishov Dmitry

Meteorology Hydrology and Water Management. Research and Operational Applications

2019

Vol. 7, Iss. 1

57--64

In recent years, the natural and economic situation in the Republic of Crimea has developed in such a way that the amount of available water resources is less than the amount of water necessary for the socio-economic development of the peninsula. This article considers one of the main water management hazards for the territory of Crimea: a lack of water. The aim of this study was to assess the water deficit and determine ways to minimize the impact of risk exposures on the population, the economy and the ecosystem as a whole. Options are provided to ensure that (1) the water economic complex supplies water to consumers in sufficient quantity and quality, and (2) the ecological status of water bodies is maintained at a high level. For example, local wastewater treatment and desalination of sea water can be used in agro-industry and the water economic complex both for individual agricultural producers and for large enterprises. The economic efficiency of the use of technologies to reduce the environmental threats of the water economic complex was assessed using technologies to increase water availability. The analysis of the quality of water resources is given, and options for improving the indicators of raw water-pipe water are proposed.