The Influence of Intra-Day Non-Uniformity of Operation of Large Hydroelectric Powerplants on the Performance Stability of Water Intakes Located in Their Upper Pools

Tatyana Lyubimova,Anatoly Lepikhin,Yanina Parshakova,Andrey Bogomolov,Yury Lyakhin

doi:10.3390/w13243577

Tatyana Lyubimova, Anatoly Lepikhin + Show 3 more

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https://doi.org/10.3390/w13243577

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Journal: Water	Publication Date: Dec 14, 2021
Citations: 1	License type: CC BY 4.0

Affiliation: Institute of Continuous Media Mechanics, Mining Institute

Abstract

The creation of reservoirs in water streams leads to significant changes in the hydrological regime of water bodies: it allows smoothing the peaks of maximum water discharge during a flood period and regulating low-water flow. The creation of reservoirs with significant storage capacity makes it possible to solve a wide range of water-management problems, including the use of falling water energy for hydropower purposes, and maintenance of the uninterrupted water supply and navigation. Since constructed dams are usually operated by hydropower companies, the regulatory regime for the discharge of water into the lower pool is often determined by the daily electricity consumption regime. Intra-day variations in the volume of water discharges through hydroelectric power stations generate multidirectional streams in the upper pool, which can affect the operation of other water withdrawal systems. This paper considers the effect of intraday variations in water discharges into the lower pool on the dynamic and physical properties of the water mass in the region of the location of drinking water-intake heads of Perm city and the quality of the withdrawn water.

Highlights

Nowadays the necessity of providing the population with drinking water of the required quality has become a high-priority problem in many regions of the world
This study demonstrates the value of geographic information system (GIS) as a tool for spatial analysis of water quality parameters along the peripheral rivers of Dhaka, which makes it possible to find the optimal solution for shifting the water intake facility for withdrawal of surface water in severe pollution conditions
A series of computational experiments was carried out to study the effect of the flow rate of water withdrawal on the quality of water taken through a separate water intake head

Summary

Introduction

Nowadays the necessity of providing the population with drinking water of the required quality has become a high-priority problem in many regions of the world. There are many works on the development of water quality models and an integrated algorithm for optimal water management to improve the environment [3,4,5,6]). For more effective pollution control, 2-D and 3-D hydrodynamic models have been developed in combination with water quality models, which serve as a scientifically based and effective tool for the operation of reservoirs and water quality in rivers. [5] developed a two-dimensional water quality model to support the programs of optimization of water ecosystem restoration and assess their effectiveness. [7] performed a simulation of the flow circulation and transport of pollutants using a three-dimensional hydrodynamic model and a water quality model. Some studies analyzed the effects of tides on water quality [8,9,10]

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