ENERGY EFFICIENCY OF A LOW-PRESSURE SMALL HYDROELECTRIC POWER PLANT WITH A FISH PASSES

• Дата: 2023
• Автори: Vasko, P., Pazych, S.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2023
• Теми: water supply; hydroelectric power plant; energy; probability; power; fish passes.; витрата води; гідроелектростанція; енергія; ймовірність; потужність; рибохід.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/363
• Назва журналу: Vidnovluvana energetika

The projects of new modern small hydroelectric power plants must provide for the maximum possible preservation of the natural environment of the river, meet the modern world level and the Sustainable Development Goals of Ukraine, presented in the National Report of the KM of Ukraine dated September 15, 2017. The value of the nominal capacity and the structure of the construction of the station should ensure the achievement of the highest energy efficiency of its operation during the year under the following conditions of water flow: the operating mode of the small hydroelectric power station corresponds as closely as possible to the natural flow of the river and provides for unhindered migration of fish. The water consumption of the fish tank can make up a significant part of the river flow costs and they should be taken into account when justifying the design parameters of small hydropower plants for a specific creation.The purpose of the work is to develop theoretical provisions for calculating the energy efficiency indicators of a low-pressure small hydroelectric power plant with arbitrary flows of river water flow through a fish channel (volume of electricity production, coefficients of use of the installed capacity, duration of operation, number of hours of use of the installed capacity of hydro units and stations). The study is based on the use of the probability distribution of river flow costs throughout the year, the basics of hydropower, and a numerical experiment.Quantitative values of energy efficiency indicators of a small hydroelectric power plant were studied at different water levels of the river flow. Based on the results of the numerical experiment, empirical functional dependencies were developed for performing an express assessment of the energy efficiency indicators of the hydroelectric power plant with fish passes at the stage of conducting pre-project prospecting studies.