Peak shaving and heat supply flexibility of thermal power plants

2021 ◽  
pp. 117030
Author(s):  
Congyu Wang ◽  
Jiwei Song ◽  
Lingkai Zhu ◽  
Wei Zheng ◽  
Zhaozhao Liu ◽  
...  
Keyword(s):  
Heat Supply ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Peak Shaving ◽  
Supply Flexibility

scholarly journals Public-private partnership as a mechanism for the development of heat supply

2020 ◽  
Vol 221 ◽  
pp. 03001
Author(s):  
Aleksey Bataev ◽  
Dmitry Samorukov ◽  
Antonina Glushkova ◽  
Vitaly Potyarkin
Keyword(s):  
Urban Areas ◽  
Heat Supply ◽  
Power Plants ◽  
Thermal Power ◽  
Public Private Partnership ◽  
Thermal Power Plants ◽  
Russian Government ◽  
Private Companies ◽  
Private Partnership ◽  
State Programs

The relevance of the research topic is caused by the need to form new innovative approaches in the field of heat supply, aimed at modernizing thermal power plants that provide heat to urban areas. In recent years, the Russian government has adopted several state programs related to environmental protection, directed towards reducing the emission of harmful substances into the atmosphere. Thermal power plants are objects whose emissions significantly pollute the environment. Considering the wear of equipment, according to various estimates, reaches 60-80% in different regions, such equipment is extremely necessary to be modernized. Using the mechanism of public-private partnership in the field of heat supply is examined in this study. An algorithm for constructing a model in the field of creating mini thermal power plants is considered. They provide heat supply to individual urban areas, as well as to ensure a significant reduction in the level of environmental pollution. The main financial indicators are estimated based on the above algorithm. This project’s performance is assessed on the basis of financing both from the state and private companies. Conclusions about using the proposed model for the development of heat supply are drawn.

scholarly journals Planning model for the development and construction of thermal power plants using alternative fuels with optimal investment distribution

2021 ◽  
Vol 255 ◽  
pp. 01007
Author(s):  
Nadiia Yushchenko
Keyword(s):  
Renewable Energy ◽  
Heat Supply ◽  
Power Plants ◽  
Alternative Fuels ◽  
Deterministic Model ◽  
Thermal Power ◽  
Optimal Investment ◽  
Energy System ◽  
Thermal Power Plants ◽  
Integer Linear Programming Problem

The work is devoted to the analysis of the current state and prospects of modernization of the fuel and energy complex and investments in renewable energy in order to achieve the Sustainable Development Goals in Ukraine, adaptation of an economic and mathematical model adequate to this process, allowing for rational distribution of investments, which in Ukraine plans to attract to development of the energy system and renewable energy as part of the implementation of the strategy “Vectors of Economic Development 2030”, the collection of potential sources of funds for the development and construction of thermal power plants using alternative fuels on the basis of existing heat supply enterprises in Ukraine. In the article it is recommended to use the add-in “Search for a solution” MS Excel for performing calculations according to the proposed deterministic model of a partially integer linear programming problem with boolean variables. As a result of the implementation of the proposed approach, moderate protection of the main producers (network operators) – heat supply utilities will be provided and market conditions for independent producers will be created, the operator will be encouraged to increase the efficiency of its own production.

scholarly journals Multi-Angle Economic Analysis of Coal-Fired Units with Plasma Ignition and Oil Injection during Deep Peak Shaving in China

2019 ◽  
Vol 9 (24) ◽  
pp. 5399
Author(s):  
Li Lin ◽  
Bingqian Xu ◽  
Shiwei Xia
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Power Plants ◽  
Thermal Power ◽  
Environmental Efficiency ◽  
Thermal Power Plants ◽  
Peak Shaving ◽  
Plasma Ignition ◽  
Three Stages ◽  
Oil Injection

What China committed in the Paris Agreement encourages the penetration of renewable energy in power grid. To consume more renewable energy, coal-fired units undertake the most part of peak shaving task and are usually operated at a low-load level during off-peak hours. However, deep peak shaving has harmed the benefits of thermal power plants and also brought about environmental problems. To improve the peak-shaving capacity and operation efficiency of coal-fired units, the government encourages the flexibility retrofits for coal-fired units. In this paper, peak-shaving related cost functions are proposed for the multi-angle economic analysis of coal-fired unit with plasma ignition (UPI) and oil injection (UOI), respectively. First, the operation characteristic is analyzed for three stages of peak shaving, and then the peak-shaving costs related to these three stages are proposed in terms of the coal consumption cost, wear-and-tear cost, combustion-supporting cost, and environmental cost. Afterwards, a peak-shaving cost-based economic dispatch model is presented with consideration of the curtailed wind penalty, and an environmental efficiency index is defined to evaluate the environmental benefits. Finally, in the case study, quantitative economy analysis is performed from the aspects of thermal power plants, wind power plants, and the environment separately, and the simulation results indicate that UPI has better peak-shaving economy and environmental efficiency than UOI.

scholarly journals Heat Supply for the Power-Biological Complex from TPP and NPP

2021 ◽  
Vol 2096 (1) ◽  
pp. 012150
Author(s):  
E Burdenkova
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Heat Supply ◽  
Nuclear Power ◽  
Power Plants ◽  
Environmental Problem ◽  
Waste Heat ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Circulating Water

Abstract This work is devoted to the problem of utilization of waste heat from condensers of thermal power plants and nuclear power plants. The waste heat of the condensers of TPPs and NPPs, together with the circulating water, enters the environment, causing its thermal pollution. The use of this heat in an energy-biological complex, for example, in fisheries, increases their efficiency and solves an environmental problem. Compared to ordinary ponds, this energy complex has an almost year-round increase in biomass and accelerated maturation of producers. The article presents a developed methodology that makes it possible to assess the effectiveness of such a fishery. Calculations using this method were carried out for a fish farm raising sturgeons on the basis of the waste heat of a nuclear power plant with a VVER-1200 reactor and a K-1200-6.8/50 turbine

scholarly journals Сomparative analysis and prospects of the use of multi -fuel micro-thermal power stations on the basis of the steeling engine for rural areas

2020 ◽  
Vol 22 (5) ◽  
pp. 3-17
Author(s):  
A. D. Mekhtiyev ◽  
A. D. Al'kina ◽  
V. V. Yugay ◽  
U. S. Esenzholov ◽  
N. B. Kaliaskarov
Keyword(s):  
Computer Simulation ◽  
Rural Areas ◽  
Heat Supply ◽  
Power Plants ◽  
Thermal Power ◽  
Simulation Method ◽  
External Heat ◽  
Working Fluid ◽  
Thermal Power Plants ◽  
Mathematical Methods

THE PURPOSE. Conducting a comparative analysis of the problems of efficient power supply torural consumers. Offering solution stop roblems by using multi-fuelmicrothermal power plants based on the Stirlingengine for ruralareas. Justification and description of prospects for the use of multi-fuelmicro-thermal power plants based on the Stirlingengine for ruralareas. METHODS. Methods of computer simulation of thermodynamic processes of multi fuel micro-thermal power plants based on an engine based on an engine with external heat supply are used. A computer simulation method has been developed that allows constructing a PV diagram and processes of changes in the pressure and volume of the working fluid depending on the position of the working piston and the displacer. Mathematical methods of analysis and description of the thermodynamic cycle of an engine with external heat supply are used. RESULTS. Выполнен анализ достижений и уровня современных достижений в области микро электростанций. Установлено направление развития научных исследований по разработке двигателя с внешним подводом тепла. Приведены некоторые результаты исследований по эффективности работы двигателя с внешним подводом теплоты. CONCLUSIONS . Одним из решений проблемы эффективного электроснабжения сельских потребителей может быть внедрения микро тепловых электростанций. Их использование позволит снизить стоимость электроэнергии и обеспечить ее бесперебойную поставку. Основой микро тепловой электростанции является двигатель с внешним подводом теплоты, работающий по принципу Стирлинга.

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