Assessment of Technical Condition and Readiness of Pump Units by Diagnostic Methods

Muhammadiev, M. M.; Glovatsky, Oleg; Ergashev, Rustam; Nasyrova, N; Saidov, F.S.

doi:10.1051/e3sconf/202132004010

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…The top five global markets for new installations in 2022 were: China, USA, Brazil, Germany and Sweden. Overall, they accounted for 71% of global installs last year, down 3.7% from 2021 [31][32][33]. This was primarily because the world's two largest markets, China and the US, lost a combined market share of 5% year-over-year, the second year in a row that both countries lost market share [34][35].…”

Section: Introductionmentioning

confidence: 99%

Prospects for the application of a small wind power device with a vertical axis in the Jizzakh region

Izzatillaev,

Khudoyberdiev,

Kushakov

2023

E3S Web Conf.

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In recent years, renewable energy sources, especially wind energy, have been widely used around the world. Big projects are being implemented in Uzbekistan for the development of wind energy in the next decade. Large wind power plants are being built in different regions of the country such as Navoi, Bukhara, and Karakalpakstan. In these wind power plants, horizontal type wind energy devices are mainly used for the production of electricity. Horizontal-axis wind energy devices are used not only in the production of large capacities, but also in providing local consumers with small capacities. However, the share of electricity generation or supply of local consumers with the help of small vertical axis wind energy devices is much smaller. In this article, analyzing the potential of wind energy in Jizzakh region, the prospects of using small vertical wind energy devices are theoretically researched.

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Section: Introductionmentioning

confidence: 99%

Prospects for the application of a small wind power device with a vertical axis in the Jizzakh region

Izzatillaev,

Khudoyberdiev,

Kushakov

2023

E3S Web Conf.

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Application of the reliability assessment results for pumping stations’s modernization

Kan,

Li,

Khushvaktova

et al. 2023

E3S Web of Conf.

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Work on the modernization of irrigation pumping stations in our Republic has a great relevance. Technical modernization and reconstruction of pumping stations require a reliable scientifically based methodological approach. Each pumping station regularly keeps records and controls the operation of equipment and facilities. These data in processed form can be applied in the modernization of irrigation pumping stations. On the example of the analysis of the reliability characteristics of the Kiziltepa 2 pumping station (Uzbekistan), a methodology has been developed to justify the modernization and the order of replacement of the main equipment. Comparison of the results of calculation of quantitative parameters (criteria) of reliability of pumping station equipment with the data of field tests of aggregates showed that they can diverge. Therefore, the operational reliability assessment should be carried out comprehensively, and not only the results of a full-scale survey should be taken into account, but also the quantitative parameters of the reliability of the pumping station calculated according to previous years of operation. The use of this technique will make it possible to dispense with complex tests to assess the residual life of equipment parts by destructive testing methods.

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Analysis of the effect of mechanical impurities in water on the hydroabrasive wear of the turbines of the Bozsu hydroelectric power plant

Kan,

Li,

Khushvaktova

et al. 2023

E3S Web of Conf.

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The peculiarity of the operation of hydropower facilities (pumping stations and hydroelectric power plants) in the Republic of Uzbekistan is that the equipment works with liquids containing a large amount of mechanical impurities. The purpose of the research is to assess the effect of the content of mechanical impurities in water on waterjet wear. The object of research is the Bozsu HPP (Uzbekistan). To assess the hydroabrasive properties of a liquid with impurities, an analysis of the granulometric and mineralogical composition of sediments and especially those fractions of impurities that pose a danger was carried out. For water passing through the turbins of the Bozsu HPP, these are fractions of feldspar and quartz. Most of the composition of mechanical impurities are feldspar minerals (58.46% with an average diameter of 0.093 mm). The total content of hazardous fractions (feldspar and quartz) is 77.07% or 0.3-0.4 kg/m3, which exceeds the maximum permissible norm (0.2 kg/m3). But at the same time, no dangerous fractions in diameter (more than 0.25 mm) were detected. A full-scale inspection of the turbine parts showed that waterjet wear is present. The type of waterjet wear is fine-scaled wear with rare, separately located, shallow scales and deep (deep) type of wear with long grooves. The degree of waterjet wear quantitatively and qualitatively, this can be attributed to the wear of low and medium activity.

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Assessment of Technical Condition and Readiness of Pump Units by Diagnostic Methods

Cited by 3 publications

References 3 publications

Prospects for the application of a small wind power device with a vertical axis in the Jizzakh region

Prospects for the application of a small wind power device with a vertical axis in the Jizzakh region

Application of the reliability assessment results for pumping stations’s modernization

Analysis of the effect of mechanical impurities in water on the hydroabrasive wear of the turbines of the Bozsu hydroelectric power plant

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