scholarly journals ASSESSMENT OF THE IMPACT OF CONSTRUCTION OF A SMALL HYDROELECTRIC POWER STATIONON THE QUALITY OF ATMOSPHERIC AIR

2020 ◽  
Vol 1 (5) ◽  
pp. 202-206
Author(s):  
B.M. Khuchunaev ◽  
◽  
А. Tashilova ◽  
L. A. Kesheva ◽  
N. V. Teunova ◽  
...  
Keyword(s):  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Point Of View ◽  
Environmental Damage ◽  
Hydroelectric Power ◽  
Negative Consequences ◽  
Initial State ◽  
Hydroelectric Power Plants ◽  
The Impact

Environment – a set of components of the natural environment, natural and natural-anthropogenic objects, as well as anthropogenic objects. When carrying out any construction work, it is necessary to assess the impact of emissions of pollutants on the environment. One of the features of the energy sector at the beginning of the 21st century is the strict regulation of its further development with the requirements of preserving a favorable environment and preventing global pollution. This determines the trend towards an increasing role of renewable energy sources and, first of all, the most efficient hydropower. In the world, small energy began to develop in recent decades, this is mainly due to the desire to avoid environmental damage caused by reservoirs of large hydroelectric power plants, with the ability to guarantee energy supply in isolated and inaccessible areas. The creation of small hydroelectric power plants instead of small power plants operating on fossil fuels leads to a significant improvement in the air basin. This article provides an assessment of the ecological state of the territory from the point of view of the possibility of construction of the object and a preliminary qualitative forecast of possible changes in the environment during the implementation of the planned construction works and its negative consequences. Based on the analysis of the initial state of the environment and the forecast of its resistance to man-made impacts, the assessment of the possible impact of the construction object on the environment in accordance with the requirements for environmental documentation was carried out.

scholarly journals Hydroelectric Power Plants ’ Re Servoirs And Their Impact On The Environment

2015 ◽  
Vol 1 ◽  
pp. 171 ◽  
Author(s):  
M. I. Balzannikov ◽  
E. G. Vyshkin
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Hydroelectric Power Plant ◽  
Energy Sources ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants ◽  
Different Types ◽  
The Way

The paper presents the analysis of different types of impact the hydroelectric power plants’ reservoirs could make on the environment. Hydroelectric power plants (HPP) produce ecologically safe energy and correspond to the modern striving for sustainability because they are operated on renewable energy sources. At the same time they can provoke various potential dangers for the environment. The objective of the investigation is to demonstrate the interrelation between the type and structure of a hydroelectric power plant and the way its reservoir may impact on the nature surrounding the plant. These effects may be direct and indirect, positive and negative and vary from insignificant that can be easily fixed to those that are irreversible and catastrophic. The latter should be taken into account during the design of HPP.

scholarly journals Influence of digital technologies on the quality of life by modelling the risk of flooding of territories by flood waters

2021 ◽  
Vol 2094 (2) ◽  
pp. 022061
Author(s):  
Ya V Grebnev ◽  
A K Moskalev ◽  
D I Shagidulina
Keyword(s):  
Quality Of Life ◽  
Power Plants ◽  
Residential Buildings ◽  
Water Levels ◽  
System Modelling ◽  
Hydroelectric Power ◽  
Negative Consequences ◽  
Hydroelectric Power Plants ◽  
Modelling Environment

Abstract Every year, there are many floods on the planet, which have a significant impact on ensuring the safety of people and affects the quality of life. The development of modern modelling technologies makes it possible to predict various scenarios for the development of the situation and reduce the likelihood of negative consequences. This issue is especially relevant for settlements located in the immediate vicinity of hydroelectric power plants, since by regulating discharge costs from hydroelectric power plants, it is possible to safely pass flood waters avoiding flooding of residential buildings and infrastructure, but this requires knowing the flooding zones at different water levels and discharge costs. This paper presents the results of solving the problem of modelling the dynamics of flood waters within the boundaries of the settlement of Krasnoyarsk. To calculate the flooded areas, the TUFLOW program was used in the Surface-water Modelling System modelling environment, as well as neural network forecasting using the NeuroPro software product. The simulation results made it possible to predict local flooding of the settlement during the flood of 2021 and take preventive measures to reduce the risk of flooding.

The feasibility co-firing biomass for electricity in Missouri

2012 ◽  
Author(s):  
◽  
Zuoming Liu
Keyword(s):  
Power Plants ◽  
Fossil Fuels ◽  
Programming Model ◽  
Renewable Energy Sources ◽  
Transportation Cost ◽  
Partial Replacement ◽  
University Of Missouri ◽  
Biomass Availability ◽  
The Individual ◽  
The Impact

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] With the growing concerns regarding energy security, sustainability and global warming, more and more efforts have been expended to find clean, safe and renewable energy sources. Bioenergy is considered as one of the significant potential energy resources to serve as a partial replacement for fossil fuels. Use biomass as fuels to produce electricity, i.e. biopower, is one of the most popular uses of bioenergy. The main objective of this study is to investigate the feasibility co-firing biomass for electricity at the existing coal-powered plants in Missouri. A linear programming model was built to simulate the whole process of co-firing biomass in 9 selected power plants with the objective of minimizing the total cost involved in the process. Two biomass co-firing levels (10% and 15%) with three levels (10%, 20% and 30%) of biomass availability are assumed to conduct sensitivity analysis. Moreover, this study also analyzed the impact of transportation cost, resource and harvesting cost on the model's optimization outcomes. The results of the model show that co-firing biomass in those selected power plants costs more than using coal. The additional cost from co-firing biomass will decrease as the availability of biomass increases. The results from the individual plants show that the optimal capacity of biomass co-firing is about 10-15MW based on the settings of this study.

scholarly journals Evaluation of the possibilities of using water-damming devices on the Tyśmienica River to build small hydropower plants

2017 ◽  
Vol 35 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Alina Kowalczyk-Juśko ◽  
Andrzej Mazur ◽  
Antoni Grzywna ◽  
Agnieszka Listosz ◽  
Roman Rybicki ◽  
...  
Keyword(s):  
Power Plants ◽  
Renewable Energy Sources ◽  
Natura 2000 ◽  
Legal Framework ◽  
Point Of View ◽  
Hydroelectric Power ◽  
Energy Potential ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Technical Capacity

AbstractHydropower plants in Poland currently use only 19% of the river’s energy potential. Development of hydropower is limited by environmental regulations as well as by economic grounds. From the environmental point of view, it is desirable to build small hydropower plants integrated into the local landscape. This paper presents results of the research aimed at estimating the amount of energy that could be produced in the case of small hydroelectric power plants on weirs existing on the Tyśmienica River. There is also a legal framework that should be adapted at hydropower development. It was calculated that the technical capacity of the small hydropower plants that could be built on 4 existing weirs, is 0.131 MW. These power plants could produce 786 MWh of electricity per year. The economic efficiency of this production is currently difficult to assess, because a new support system for renewable energy sources is currently being implemented, which will be a decisive factor for entrepreneurs. It should be borne in mind that potential investments will be made in protected areas within the Natura 2000 network, which may limit their constructing or impose the obligation to assess their impact on selected environmental elements. Location within the protective area does not eliminate such investments, especially when solutions with the least possible environmental impact are used.

Impact of Forecast Uncertainty on Wind Farm Profitability

2019 ◽  
Author(s):  
Guido Francesco Frate ◽  
Lorenzo Ferrari ◽  
Umberto Desideri
Keyword(s):  
Power Plants ◽  
Wind Farm ◽  
Forecast Error ◽  
Market Competition ◽  
Renewable Energy Sources ◽  
Point Of View ◽  
Energy Market ◽  
Forecast Errors ◽  
Forecast Lead Time ◽  
The Impact

Abstract The great amount of support schemes that initially fueled the fast, and often uncontrollable, Renewable Energy Sources (RESs) growth have been strongly reduced or revoked in many countries. Currently, the general trend is to try to equate the RESs to the traditional power plants. From the energy market point of view, this entails exposing the RESs more to the market competition and mechanics. This could be done, for example, requiring the stochastic RESs to submit a production schedule in advance and to be financially responsible for any deviation from this. This could push the Wind Farm (WF) operators to make accurate forecasts, fostering the electric system resiliency and an efficient use of balancing resources. From the forecasting point of view this is not a trivial problem, since the schedule submission is often due 10–12 hours before the actual delivery. Since forecast errors are unavoidable, the submitted schedule could turn out to be infeasible, forcing the WF to recur to correcting actions which are generally costly. Focusing on this, the analysis estimates the revenue reduction which would affect a WF operating in the energy market due to forecast errors. To do this in a realistic way, a case study is selected, and realistic forecast scenarios are generated using a copula approach. Important forecast error features like autocorrelation and dependency on forecasted power level and forecast lead-time are modeled. The revenue reduction due to balancing actions is calculated on an annual basis, using typical days, derived through the production data clustering. Losses ranging from 5% to 35% has been found, depending on the days and on the market prices. A sensitivity analysis to the costs of balancing actions is performed. In this way, the effect of different market architectures and, possibly, of different RESs penetration level is considered in the analysis. Finally, the effectiveness of the curtailment as a technique to reduce the impact of forecast errors in highly penalizing market environments is assessed.

scholarly journals Strategic Planning for Operation of Large Hydropower Plants

2014 ◽  
Vol 14 ◽  
pp. 53-58
Author(s):  
Shambhu Ratan Awasthi ◽  
Vishnu Prasad ◽  
Saroj Rangnekar
Keyword(s):  
Strategic Planning ◽  
Power Plants ◽  
Fossil Fuels ◽  
Reactive Power ◽  
Constant Load ◽  
Optimal Operation ◽  
Francis Turbine ◽  
Maximum Efficiency ◽  
Hydroelectric Power ◽  
Hydroelectric Power Plants

Electricity is an integral part of modern life. The main sources of power generation continue to be the fossil fuels which are largely responsible for global warming. In view of environmental concerns, there is increasing awareness on judicious use of natural resources, including water. Large hydroelectric power plants are generally multi-purpose projects and require huge quantities of water for their operation. Usually the generating units in a hydroelectricpower plant are put in operation to meet the electrical load demand without considering the efficiency of the units, which can lead to excessive water use. It is now need of the hour to pay more attention to optimizing the utilization of water in hydroelectric power plants.This paper presents strategic planning for optimal operation of large hydroelectric power plants. Large variation inefficiency of a Francis turbine forms the basis of proposed methodology in which turbines are operated at maximum efficiency. In one approach, discharge is minimized for constant load operation thus conserving water. In another approach, generation is maximized with the same quantity of water. The fringe benefits include creation of operating reserve and availability of additional reactive power in the generator.DOI: http://dx.doi.org/10.3126/hn.v14i0.11266HYDRO Nepal JournalJournal of Water, Energy and EnvironmentVolume: 14, 2014, JanuaryPage: 53-58

scholarly journals Availability Projections of Hydroelectric Power Plants through Monte Carlo Simulation

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8398
Author(s):  
Marcos Tadeu Barros de Oliveira ◽  
Patrícia de Sousa Oliveira Silva ◽  
Elisa Oliveira ◽  
André Luís Marques Marcato ◽  
Giovani Santiago Junqueira
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Power Plants ◽  
Hydroelectric Plant ◽  
Real Data ◽  
Hydroelectric Power ◽  
Maintenance Schedule ◽  
Hydroelectric Power Plants ◽  
Hydroelectric Plants ◽  
The Impact

The present work proposes a Monte Carlo Simulation (MCS) to obtain availability projections for Hydroelectric Power Plants (HPP), based mainly on regulatory aspects involving the Availability Factor (AFA). The main purpose of the simulation is to generate scenarios to obtain statistics for risk analysis and decision-making in relation to the HPP. The proposed methodology consists of two steps, firstly, the optimization of the maintenance schedule of the hydroelectric plant is carried out, in order to allocate the mandatory maintenance in the simulation horizon. Then, for the MCS, scenarios of forced shutdowns of the Generating Units (GU) will be generated, which directly influence the operation and, consequently, the availability of the HPP. The scenarios will be inserted into an operation optimization model, which considers the impact of forced shutdown samples on the MCS. The proposed modeling was applied using real data from the Santo Antônio HPP, which is one of the largest hydroelectric plants in Brazil.

scholarly journals WAYS TO IMPROVE THE EFFICIENCY OF POWER SUPPLY TO REMOTE OBJECTS

2021 ◽  
pp. 69-77
Author(s):  
S. P. Murоvsky
Keyword(s):  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Thermoelectric Generators ◽  
Hydroelectric Power ◽  
Combined Power Supply ◽  
Hydroelectric Power Plants ◽  
Electrochemical Storage ◽  
Supply Systems

The paper considers ways to improve the efficiency of combined power supply systems for remote facilities based on renewable energy sources. The developed circuit solution for the combined power supply of remote facilities based on mini-hydroelectric power plants, GT and thermoelectric generators installed on the boiler's gas outlet pipe will allow redistributing energy between consumers inside the facility or storing it in the electrochemical storage system during the period of minimum consumption.

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