scholarly journals Assessment of the position of the project water flow in the lower reaches of hydroelectric facilities, using the example of the novosibirsk hydroelectric power station

2021 ◽  
Vol 2131 (3) ◽  
pp. 032075
Author(s):  
N Akhmatova ◽  
T Mikhaylova ◽  
T Pilipenko
Keyword(s):  
Water Level ◽  
Water Flow ◽  
Building Materials ◽  
Anthropogenic Impacts ◽  
Design Flow ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Channel Deformation ◽  
The Impact ◽  
Fish Industry

Abstract Construction of large hydroelectric complexes on the plain rivers of Western Siberia, such as the Ob, as well as other types of anthropogenic impact (infill development, quarrying of nonmetallic building materials, carrying out track works, laying communications, wastewater discharges, etc.) lead to a change in water and channel regimes, hydrological characteristics, channel deformation in the downstream. One of these changes is the landing of water level in the section of the lower pond of the Ob from the Novosibirsk hydroelectric complex to the mouth of the Tom River, which adversely affects navigable conditions of this stretch, operation of water intakes, port and sluice, and also damages the fish industry. The landing of the water level continues to this day, and in order to maintain the design water level, it becomes necessary to increase navigation releases. The design level was changed several times after the commissioning of the Novosibirsk hydroelectric complex due to its low availability, a further change in the availability will lead to a change in the design level mark, or rather its lowering. Therefore, the purpose of the study is to assess the position of the design flow rate at the established design level and make a forecast of changes in water flow depending on the time that has passed since the start of operation of the Novosibirsk hydroelectric complex, taking into account the impact on the channel, carried out dredging works, as well as other types of anthropogenic impacts.

scholarly journals The current state of the ornithological fauna of the Krasnoyarsk Reservoir

2020 ◽  
Vol 9 (3) ◽  
pp. 28-31
Author(s):  
Olga V. Bulycheva ◽  
Aleksander A. Baranov
Keyword(s):  
Hydrological Regime ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Habitat Conditions ◽  
Biotopic Distribution ◽  
Geological Processes ◽  
Current State ◽  
Key Points ◽  
The Yenisei River ◽  
The Impact

This paper discusses the current state of the avifauna on the territory of the Krasnoyarsk Reservoir. To date, the species composition of birds in the study area has not been studied, although it is worth noting the need to study the distribution of birds in this area. The construction of the Krasnoyarsk hydroelectric power station led to changes in the hydrological regime of the Yenisei River with subsequent flooding of the surrounding territory, as a result of which various geological processes of collapse of the Krasnoyarsk Reservoir banks are observed. Bank metamorphoses can also influence the spatial distribution of birds and creation of new ornithocomplexes. Our ecological and faunal analysis was carried out over two years (20182019) at nine key points along the bank lines of the Krasnoyarsk Reservoir within a radius of one kilometer from the water to identify the impact of geological changes in the banks on the nature of bird placement. The key areas of the study were determined, taking into account various biotopic habitat conditions that attract birds. Monitoring of avifauna on the territory of the Krasnoyarsk Reservoir will allow us to assess the degree of influence of changes in the geological processes of the banks on the spatial and biotopic distribution of birds, and it is also possible to forecast the disappearance or movement of some species and subspecies on this territory.

scholarly journals TO THE QUESTION OF CRUSTAL DEFORMATION FROM SEASONAL LOAD WEIGHT CHIRKEI RESERVOIR

2015 ◽  
Author(s):  
Ш.Г. Идармачев ◽  
В.И. Черкашин ◽  
М.А. Мусаев ◽  
И.Ш. Идармачев
Keyword(s):  
Water Level ◽  
Crustal Deformation ◽  
Seasonal Changes ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Hydroelectric Dam ◽  
The Right ◽  
Vertical Crustal Deformation ◽  
Load Weight

В статье сделан анализ данных непрерывных электрометрических наблюдений в скважине, расположенной в районе правого борта плотины Чиркейской ГЭС за период времени 20102013 гг., которые коррелируют с сезонным изменением уровня воды в водохранилище. Один из механизмов связи между изменениями уровня воды в водохранилище и кажущимся сопротивлением пород может быть деформационный, т.е., сезонное изменение нагрузки, создаваемое весом водохранилища приводит к упругой деформации земной коры. Численные оценки показывают, что значение вертикальной относительной деформации земной коры в районе плотины ГЭС может достигать величин 1,2105 The article presents an analysis of data continuous electrometric observations in the borehole located in the right side of the dam of the Chirkei hydroelectric power station for the period 20102013, which correlate with seasonal changes in water level in the reservoir. One of the mechanisms of the link between changes in water level in the reservoir and the apparent resistance of rocks can be deformation, i.e., the seasonal change of the load created by the weight of the reservoir leads to elastic deformation of the earths crust. Numerical estimates show that the value of relative vertical crustal deformation in the area of the hydroelectric dam may reach values of 1,2105.

scholarly journals Features of natural plant complexes restoration and land reclamation in the area of Ust-Srednekanskaya hydroelectric power plant on the Kolyma river

2021 ◽  
Vol 265 ◽  
pp. 04016
Author(s):  
Pavel E. Tikhmenev ◽  
Andrey A. Smirnov ◽  
Evgeniy A. Tikhmenev ◽  
Galina V. Stanchenko
Keyword(s):  
Land Reclamation ◽  
Hydroelectric Power Plant ◽  
Anthropogenic Factors ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Natural Plant ◽  
North East ◽  
The North ◽  
The Impact ◽  
Kolyma River

The low resistance of the landscapes of the North-East of Russia to anthropogenic influences is shown. The features of natural plant complexes restoration and land reclamation in the area of the Ust-Srednekanskaya hydroelectric power station are considered. In order to create conditions for the successful restoration of vegetation cover after the impact of anthropogenic factors, it is recommended to carry out measures for leveling the disturbed surface and terracing it. It is proposed to carry out artificial sowing of cereals, which are characterized by regular and abundant fruiting.

scholarly journals Problems, methods and technologies of combined 3D model construction for underwater and above-water relief

2020 ◽  
Vol 149 ◽  
pp. 02002
Author(s):  
Andrey Gachenko ◽  
Alexei Hmelnov
Keyword(s):  
Power Plant ◽  
Water Level ◽  
Water Flow ◽  
Lake Baikal ◽  
3D Model ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Delaunay Triangulations

In the article we describe the methods for construction of underwater 3D relief (bathymetry) and combining it with the corresponding ground relief (terrain) when the bathymetry information is of much lower quality than that of terrain. We have developed an algorithm for combining the low quality underwater relief with the higher quality ground relief using Delaunay triangulations. The resulting combined 3D model of relief has no noticeable artifacts and can be used to solve various hydrological tasks, such as computation of the HPP reservoir water level in dependence to the water discharges of the hydroelectric power plant. We have tested the technology for building combined relief 3D model in several scientific projects intended to estimate the changes in the coastline under various water flow scenarios in the basins of Angara River and Lake Baikal.

scholarly journals RESERVOIRS OF DIVERSION HYDRO POWER PLANTS AND THE APPLICATION OF ALLUVIUM FOR THE PRODUCTION OF BUILDING MATERIALS

2021 ◽  
Author(s):  
М. Н. Кокоев
Keyword(s):  
Power Plants ◽  
Building Materials ◽  
Water Discharge ◽  
River Sediments ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
North Caucasus ◽  
Mountain Rivers ◽  
Large Reservoir ◽  
Hydro Power

В горных реках Северного Кавказа расход воды в паводок увеличивается в десятки раз. Часто в горных условиях технически проще и дешевле построить не плотинную станцию с большим водохранилищем, а деривационную ГЭС с небольшим водохранилищем или с бассейном суточного регулирования. Горные реки несут большое количество песка и ила. Во время паводков вода переносит и мелкие камни, и гальку. Если не принимать мер для очистки от речных наносов водохранилищ, то через несколько лет полезный объем водохранилищ будет исчерпан. В статье рассматривается один из способов поддержания водохранилищ и бассейнов суточного регулирования в рабочем состоянии. Предложено речные наносы (аллювий) регулярно извлекать из водохранилищ, обрабатывать и использовать как сырье для производства строительных песчано-гравийных смесей и щебня. Есть большая потребность в этих материалах при строительстве автомобильных дорог, в промышленном и гражданском строительстве. Одновременно можно использовать тонкие фракции аллювия в виде ила, глины и тонкого песка в качестве основы для приготовления почвенного субстрата с целью применения его для улучшения пойменных земель. Обсуждаются вопросы организации при водохранилищах каскада ГЭС на горных реках механизированных участков по утилизации донных отложений. In the mountain rivers of the North Caucasus, the water discharge during a flood increases tenfold. Often, in mountainous conditions, it is technically easier and cheaper to build a derivation hydroelectric power station with a small reservoir or with a daily regulation pool than a dam station with a large reservoir. Mountain rivers carry large amounts of sand and silt. During floods, the water carries lots of small stones and pebbles. If no measures are taken to cleanse reservoirs from river sediments, their useful volume would be exhausted in a few years of operation. The article discusses one of the ways to maintain reservoirs and basins of daily regulation in working order. It is proposed that river sediments (alluvium) be regularly removed from reservoirs, processed and used as raw materials for the production of construction sand and gravel mixtures and crushed stone. The demand for these materials in the construction of highways, in industrial and civil construction is high. At the same time, it is possible to use fine fractions of alluvium in the form of silt, clay and fine sand as a basis for preparing a soil substrate to improve floodplain lands. The issues of organizing mechanized teams for utilization of bottom sediments at reservoirs of a cascade of hydroelectric power stations on mountain rivers are discussed.

scholarly journals Calculation of Water Wheel Design Parameters for Micro Hydroelectric Power Station

2019 ◽  
Vol 97 ◽  
pp. 05042 ◽  
Author(s):  
Dilshod Kodirov ◽  
Obid Tursunov
Keyword(s):  
Water Flow ◽  
Power Plants ◽  
Low Pressure ◽  
Design Parameters ◽  
Water Volume ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Water Flow Velocity ◽  
Pressure Water ◽  
Water Wheel

This paper is devoted to the issues such as modelling the design parameters and operating modes and improving the design of micro hydroelectric power plants operating in low-pressure water flow. Taking into consideration above-mentioned issues, it is possible to increase the efficiency of using low-pressure water energy systems. The main dimensions of the water wheel of a micro hydropower plant depend on the water flow velocity v, water volume Q, acting at a fixed point in time on the water wheel blade, and also on the depth of the water level H.

THE IMPACT OF INCREASED TECHNOGENIC ENVIRONMENTAL POLLUTION ON THE HEALTH AND DEMOGRAPHIC BEHAVIOR OF RESIDENTS OF KRASNOYARSK

2020 ◽  
pp. 55-66
Author(s):  
Olga N. Yanenko ◽  
Keyword(s):  
Power Plants ◽  
Negative Impact ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Demographic Indicators ◽  
Demographic Behavior ◽  
City Population ◽  
Demographic Processes ◽  
And Behavior ◽  
The Impact

The article considers negative trends in demographic processes associated with the impact of the environment on the life and health of the Krasnoyarsk city population. Methodological features of the study of the research subject are discussed, as well as the elaboration of the problem within the framework of specific sciences is analyzed. To what extent does the habitat with an increased level of technogenic pollution affect the subjective attitudes of residents, their needs, opinions, plans, and decision-making regarding demographic aspects of life? The presented results of expert interviews with specialists in the field of environmental protection and public health were taken by the author in November 2020. They indicate a truly deplorable situation in one of the major industrialized cities of Russia, Krasnoyarsk. The main pollutants are supposed to be transport, the RUSAL aluminum plant, the private sector with coal-fired heating and three coal-fired power plants. The Krasnoyarsk hydroelectric power station has a negative impact as well. The experts point to the obvious insufficiency of studying the problem of the impact on the demographic indicators and behavior of citizens, which is associated with the lack of open information about the level of the Krasnoyarsk urban environment pollution and specialized research in this direction.

scholarly journals ANALISIS ALIRAN BALIK (BACKWATER) PADA AMBANG GERIGI

2021 ◽  
Vol 14 (2) ◽  
pp. 61
Author(s):  
Winda Harsanti, ST., MT ◽  
Medi Efendi ◽  
Sitti Safiatus Riskijah
Keyword(s):  
Water Level ◽  
Water Flow ◽  
Open Channel ◽  
Channel Model ◽  
Step Method ◽  
Independent Variable ◽  
The Impact

Gerigi weir is a modificated jigsaw weir which can hold water flow to gain higher water level. This water raising happens in upstream of the weir until certain length to reach normal depth. This research uses square open channel model with slope as an independent variable. In this research uses various slope from 1‰ to 5‰ for eight different discharges. The aim of this research is to find the impact of slope for backwater length using Direct Step Method. The result of this research is the longest back water happened in the 8th of experiment discharge (1399,984 cm3/sec) with the slope of 3‰, by 40.800,4952 cm from the weir. In addition, slope is not affect for the length of backwater. This is because from all analysis of experiments, the longest backwater happens in different slope for each discharge, namely between 1‰, 3‰, or 4‰ of slope.                      Keywords: back water, gerigi weir, slope

scholarly journals Construction and Operation of Small Hydro Power Plants in the Ukrainian Carpathians: New Challenges for Environment

2020 ◽  
Keyword(s):  
Power Plant ◽  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Hydro Power ◽  
The Impact

Purpose. Analysis of environmental problems and risks associated with the construction and operation of small hydroelectric power facilities (SHEPP) in the Ukrainian Carpathians. Methods. Field studies, statistical, hydrological, hydroecological, analysis and synthesis. Results. Potential environmental risks arising from the construction and operation of SHEPP in the Ukrainian Carpathians are considered. The influence of Yavіrska hydroelectric power station on water discharges in the Stryi river was investigated. The daily water discharges for the two hydraulic sections located above and below the station for low-water (2003) and high-water (2008) years are analyzed. Possible risks in the construction and operation of the hydroelectric power plant for the movement of flood waters, river sediments, the development of riverbed deformations, and others, are indicated. The difference in water discharges between the two hydrological stations is presented, and it is confirmed that in the spring of 2008 and 2003 and the autumn and winter of 2003 and 2008 minimal differences in water consumption were observed as a result of the water retention in the reservoir above the dam of Yavіrska hydro power station for the maximal electrical power generation. The impact of the Yavіrska SHEPP on the biota of the Stryi river during 2014–2015 was analyzed. The obtained results indicate that the main negative factors affecting the communities of river hydrobionts are the creation of reservoir of limnethic conditions in the continuum of the river ecosystem; the accumulation of sediments and dead organic matter on its bottom and banks and the demolition of these sediments on the lower sections of the channel bed; also a decrease of water in the riverbed downstream of the dam after the closure of the floodgates in June. The analysis of the environmental impact assessment reports made it possible to analyze the major environmental threats, which are possible during the building and operation of a small hydroelectric power plant on the Stryi river in the Dovhe village (Drohobych district, Lviv region). Conclusions. To prevent the impact of the projected SHEPP in the Carpathian region it is necessary to prescribe the mechanism of carrying out the environmental impact assessment, to specify the natural-geographical, hydrological and hydro-ecological restrictions on the construction and operation of the hydroelectric power station. It is also necessary to identify sections of mountain (“wild”) rivers with high values of natural landscapes and prohibit the construction of small hydropower facilities.

scholarly journals Mathematical Model of Water Level Dependence in the Ob River from the Discharge of Water to Hydroelectric Power Station

Vestnik NSUEM ◽  
2020 ◽  
pp. 177-182
Author(s):  
A. V. Logachov ◽  
O. M. Logachova ◽  
P. A. Karpik
Keyword(s):  
Mathematical Model ◽  
Water Level ◽  
Discharge Rate ◽  
Stochastic Approach ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
Power Station ◽  
Ob River ◽  
Straight Line ◽  
Average Water

The dependence of the average water level in the Ob River at the Novosibirsk water post on the discharge rate to a hydroelectric power station is being investigated. The stochastic approach is used to model this dependence. As a result of the analysis of an array of statistical data a two-component mathematical model has been obtained. The simultaneous use of the Probit probability determination model and the construction of a regression straight line result in a nonlinear relationship between the water level and the discharge rate, which allows for a more accurate flood forecast.

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