CHARACTERISTICS OF THE MAIN EQUIPMENT OF THE "DUSTLIK" PUMPING STATION AND THE STRUCTURE OF ITS ENERGY CONSUMPTION

Ahmadaliyev Utkirbek Akramjonovich,Muhammadyoqubov Shodiyor Olmosbek ugli

Authors

Ahmadaliyev Utkirbek Akramjonovich,Muhammadyoqubov Shodiyor Olmosbek ugli Senior Lecturer, Department of "Alternative Energy Sources", Andijan State Technical Institute, Andijan, Uzbekistan,Student, Andijan State Technical Institute, Andijan, Uzbekistan

Keywords:

Dustlik pumping station; centrifugal pumping unit; synchronous electric motor; energy consumption structure; energy efficiency; water management; transformer; irrigation infrastructure; electrical energy losses; coefficient of performance.

Abstract

This article studies the characteristics of the main equipment of the "Dustlik" pumping station, located in the Ulug'nor district of the Andijan region, Republic of Uzbekistan, and analyzes the structure of its energy consumption. The pumping station, commissioned in 1980 with a total project capacity for year-round irrigation supply, plays an important role in the national water management system. The technical parameters of the centrifugal pumping units of type 32D-19 (analog D 6300-27), high-voltage synchronous electric motors, transformers, and auxiliary equipment including the excitation system (TVU-180-50 thyristor cabinets), drainage system (K-20/30 pumps, 11 kW), bridge crane (10 kW total), and metering instruments are analyzed in detail. The results show that the main pumping units consume approximately 84 % of the total electricity intake, while auxiliary systems account for the remaining 16 %. Comparison of actual and design performance reveals an 18 % reduction in flow rate, a 5 % decrease in head, and a 7-percentage-point drop in efficiency, attributable to long-term operation, declining coefficient of performance, and uneven load distribution.

References

Arifjanov A. M. Pumping Stations and Hydromechanical Equipment. – Tashkent: O'qituvchi, 2020. – 248 p.

Akhmedov Q. Kh. Fundamentals of Efficient Use of Electrical Energy. – Tashkent: Fan va texnologiya, 2019. – 312 p.

Karimov B. R. Energy-Saving Technologies in Water Management Systems. – Tashkent, 2021. – 196 p.

Shodmonov S. T. Methods for Improving the Operating Efficiency of Pumping Units. – Tashkent: Energiya, 2018. – 184 p.

Ministry of Water Management of the Republic of Uzbekistan. Normative documents on energy efficiency of pumping stations. – Tashkent, 2023. – 84 p.

Qodirov N. Q. Electrical Machines and Electric Drive. – Tashkent: Tafakkur-Bo'stoni, 2017. – 384 p.

Hayitov M. H. Operation of Hydrotechnical Structures and Pumping Stations. – Tashkent, 2022. – 268 p.

International Energy Agency (IEA). Energy Efficiency 2023: Pumping Systems in Industrial and Agricultural Applications. – Paris: IEA, 2023. – 196 p.

Kaya D., Yagmur E. A., Yigit K. S., et al. Energy efficiency in pumps // Energy Conversion and Management. – 2008. – Vol. 49, No. 6. – P. 1662–1673. DOI: 10.1016/j.enconman.2007.11.010.

Shankar V. K. A., Umashankar S., Paramasivam S., Hanigovszki N. A comprehensive review on energy efficiency enhancement initiatives in centrifugal pumping system // Applied Energy. – 2016. – Vol. 181. – P. 495–513. DOI: 10.1016/j.apenergy.2016.08.070.

De Almeida A. T., Fonseca P., Bertoldi P. Energy-efficient motor systems in the industrial and services sectors in the European Union: characterisation, potentials, barriers and policies // Energy. – 2003. – Vol. 28, No. 7. – P. 673–690. DOI: 10.1016/S0360-5442(02)00184-3.

Resolution of the Cabinet of Ministers of the Republic of Uzbekistan No. 22 of 12 January 2018, "Rules for the Use of Electrical Energy". – URL: https://lex.uz/docs/-3501569 (accessed: 12.05.2024).

GOST 6134-2007. Dynamic Pumps. Test Methods. – Moscow: Standartinform, 2008. – 84 p.

IEC 60034-30-1:2014. Rotating Electrical Machines – Part 30-1: Efficiency Classes of Line-Operated AC Motors (IE Code). – Geneva: International Electrotechnical Commission, 2014. – 42 p.