scholarly journals Power supply of industrial and residential urban areas through the use of secondary combustible and thermal energy resources

2021 ◽  
Vol 274 ◽  
pp. 08002
Author(s):  
Jury Lavirko ◽  
Michael Taymarov ◽  
Rimma Akhmetova ◽  
Aigel Sabirzyanova
Keyword(s):  
Thermal Energy ◽  
Power Supply ◽  
Urban Areas ◽  
Energy Resources ◽  
Oil Refining ◽  
Technical Solution ◽  
Hydrocarbon Gases ◽  
The Subject ◽  
Combustible Gases ◽  
Secondary Energy Resources

The subject at hand is the technology of integrated use of secondary combustible and thermal energy resources of oil refining and petrochemicals for power supply and heat supply of industrial and residential urban areas. Currently, combustible secondary energy resources in petrochemicals in through hydrocarbon gases are burned in smokeless flares and technological candles without practical use in the electric and thermal energy industry. In the production of polyethylene, an average of 230 t/h of spent combustible gases is burned in a smokeless flare at an altitude of 105 m with useless dispersion of the resulting heat in the atmosphere. The heat of heated process water during cooling in cooling towers is uselessly dispersed in the atmosphere or leaves with contaminated spillways and non-return condensate into settling tanks without practical useful application. In the construction of new and the energy supply of existing industrial and residential facilities, there is a problem providing them with electric and thermal energy at low prices. The purpose of this study is to develop a technical solution on the technology of integrated use of secondary combustible and thermal energy resources of oil refining and petrochemicals for the electrical and thermal supply of industrial and residential urban areas.

scholarly journals Application of an absorption heat pump in the conditions of an existing combined heat and power plant

2020 ◽  
Vol 34 ◽  
pp. 57-62
Author(s):  
A. Redko ◽  
I. Redko ◽  
S. Pavlovskiy ◽  
Y. Burda ◽  
Y. Pivnenko ◽  
...  
Keyword(s):  
Energy Balance ◽  
Thermal Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Combined Heat And Power ◽  
Energy Resources ◽  
Secondary Energy ◽  
Condense Water ◽  
Secondary Energy Resources ◽  
Heating Networks

The dependence of mankind on energy resources only increases with the development of scientific and technological progress. It is clear that the supply of natural energy resources will run out soon. The solution is using new energy generation technologies based on renewable and secondary sources. Due to the presence in Ukraine of operating combined heat and power plants, there is the possibility of producing thermal energy using the secondary heat by absorption heat pumps. At the same time, the thermal energy of flue gases and steam from steam turbines does not heat the atmosphere, but are involved in the generation of thermal energy for heating networks of settlements. Due to the ability of the absorbent solution to absorb and condense water vapor under the influence of low-potential and high-potential heat carriers, it is possible to significantly reduce the consumption of traditional energy resources and increase the overall efficiency of the combined heat and power plants. World experience shows that the use of secondary energy resources can significantly improve the country's energy balance. And the main problem is the availability of these resources. In today's changing climate, the use of renewable energy sources requires additional expences and it is appropriate to pay attention to use of present secondary energy resources, which are not used now. There are a lot of such resources available in heat generating facilities. This is especially noticeable in large cities with central heating networks. Therefore, increasing the efficiency of their work makes it possible to significantly improve the energy balance of the whole country and reduce tariffs for thermal energy for industry and individual consumers, which, in turn, will improve the living standards of citizens.

scholarly journals Use and control of heat flows in ventilation shafts of subways with Thermal Power Generation

2018 ◽  
Vol 239 ◽  
pp. 01045
Author(s):  
Anna Barch ◽  
Sergey Naumenko ◽  
Alexandr Kotelnikov ◽  
Lev Muginshtein
Keyword(s):  
Power Generation ◽  
Waste Heat ◽  
Thermal Power ◽  
Heat Pumps ◽  
Energy Resources ◽  
Technical Solution ◽  
Heat Flows ◽  
Subway Stations ◽  
And Control ◽  
Secondary Energy Resources

The variants of schematic technical solution of the system of using secondary energy resources - the waste heat of the subway – for the heating of subway stations are proposed, the results of the feasibility study of the heating of the “Nagatinskaya” station of the Moscow Metro with the use of heat pumps are presented.

scholarly journals Carbon Dioxide Turbine Expander Plant Producing Liquid and Gaseous Carbon Dioxide

2019 ◽  
Vol 62 (1) ◽  
pp. 77-87 ◽  
Author(s):  
A. V. Ovsyannik
Keyword(s):  
Carbon Dioxide ◽  
Thermal Energy ◽  
Boiling Point ◽  
Storage Systems ◽  
Energy Resources ◽  
Heating Unit ◽  
Secondary Energy ◽  
Gaseous Carbon Dioxide ◽  
And Storage ◽  
Secondary Energy Resources

The scheme of carbon dioxide cogeneration and trigeneration plant with the use of secondary energy resources in the form of combustion products or flue gases that enables to produce electricity, thermal energy and cold for centralized and decentralized supply of consumers simultaneously, is presented. In addition, the plant can produce liquid and gaseous carbon dioxide. The main elements of the plant are a heating unit, a turbodetander unit and a carbon dioxide unit for the production of cold, liquid and gaseous carbon dioxide. A thermodynamic calculation and a brief exergy analysis of the plant were carried out. In the proposed plant, off-gases from glassmelting, metallurgical furnaces, heat power facility and other energy facilities with a secondary energy temperature of 250–400 °C and above can be used as secondary energy resources. The heating unit of the installation has been designed to produce thermal energy for heating and hot water supply systems. The carbon dioxide unit has been designed for the production of cold, electric energy and carbon dioxide in liquid and gaseous form in order to ensure the operation of the plant and the use for commercial purposes. The cold in the plant can be obtained in two evaporators operating at different boiling temperatures. At a higher boiling point of carbon dioxide, cold is used in air conditioning systems and in centralized cooling and storage systems, while at a lower boiling point of carbon dioxide – in freezing and storage systems. For the implementation of the reverse carbon dioxide cycle, a three-stage carbon dioxide compressor with a receiver after the third stage is used. To reduce compression performance of the compressor, complete intermediate cooling of carbon dioxide between stages should be provided.

Utilizing the Secondary Energy Resources Available in Coal Mines

Vestnik MEI ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 24-33
Author(s):  
Aleksey В. Biryukov ◽  
◽  
Dmitriy I. Parkhomenko ◽  
Viktor V. Varakuta ◽  
Pavel А. Gnitiev ◽  
...  
Keyword(s):  
Coal Mines ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

DYNAMICS OF CHANGES IN THE STRUCTURE AND VOLUMES OF FORMATION OF SECONDARY ENERGY RESOURCES IN THE ENERGY OF UKRAINE

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Nataliia Meranova ◽  
Nina Polozenko ◽  
...  
Keyword(s):  
Energy Sector ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

The paper presents the dynamics of changes in volumes of secondary energy resources (SER) in the energy sector of Ukraine by type of energy. The data on changes in the structure and volumes of secondary energy resources for the last period are presented.

ANALYSIS OF THE USE LEVEL OF SECONDARY ENERGY RESOURCES IN ENERGY SECTOR OF UKRAINE

2017 ◽  
Author(s):  
Nataliia Fialko ◽  
◽  
Viktor Prokopov ◽  
Julii Sherenkovskii ◽  
Artem Yevtushenko ◽  
...  
Keyword(s):  
Energy Sector ◽  
High Potential ◽  
Energy Resources ◽  
Secondary Energy ◽  
Secondary Energy Resources

The features of the use of heat and combustible and heat secondary energy resources (SER) in the energy sector of Ukraine are considered. The data on the use levels of various types of combustible SER, as well as high-potential heat SER by types of utilization plants are presented.

Improvement of the System of Statistical Indicators of the State and Development of the Fuel and Energy Complex of the Russian Federation

2019 ◽  
Vol 26 (12) ◽  
pp. 27-38
Author(s):  
M. R. Еfimova ◽  
N. A. Korolkova
Keyword(s):  
Oil Production ◽  
The State ◽  
Production Costs ◽  
Energy Resources ◽  
Oil Refining ◽  
Steady Increase ◽  
Development Trends ◽  
Energy Complex ◽  
Statistical Indicators

The article proposes an improved system of statistical indicators for assessing the state and development of the fuel and energy complex of Russia, which defines a methodological approach to identifying factors and trends in its development. The introduction highlights the relevance of modernization of information and methodological support for reaching decisions on new tasks, including those related to the digitalization of the economy and implementation of the national projects’ portfolio. The body of the article critically examines the current configuration of official and departmental statistical information, based on which the authors selected 85 key indicators reflecting the state and development level of the fuel and energy complex of Russia. All of them can be delineated by sectors and analysis tasks. This evaluation system includes 7 blocks: general block characterizing the role of the fuel and energy complex in the economic system; key industry performance indicators; indicators of the production structure by industry; technological indicators of industries; prices for fuel and energy resources; production costs by industry; distribution indicators of fuel and energy resources. The paper analyses development trends in the fuel and energy sectors for 2008-2018. In particular, the authors’ research showed that modern oil production is characterized by a change in the territorial structure, as well as the reinstatement of the role of vertically integrated companies in the development of oil production. The article presents findings on the technological upgrading of Russian oil refining. However, the authors’ research proved that oil refining depth has ceased to be a reliable indicator of the level of technological equipment and modernization level of oil refineries. With regard to the development of the gas industry, there has been a steady increase in gas production, which is supported by maintaining a steady increase in demand for Russian gas in the domestic and foreign markets. The all-time high domestic consumer demand for gas fuel, associated with the Russian Regions Gasification Program implemented by the Ministry of Energy of Russia, was recorded. At the same time, the authors identified the main risk factors in the development of the industry related to Gazprom (a backbone of the energy sector) activities. The persistent positive growth dynamics in commodity production of associated petroleum gas was established. It was also noted that the highest percentage of its beneficial use is characteristic of operators of production sharing agreements. As for the results of the analysis of the coal industry, a matter of interest is the growth of domestic prices for coal products and related derivative trends. Particular attention is paid to the development of the possibilities of using over-the-counter coal price indicators. Replacement of coal with natural gas at a thermal power station in most regions of the country is of interest within the identified development trends of the electric power industry in Russia, which is explained by the environmental friendliness of electricity generation.

THE TRUMP ADMINISTRATION’S APPROACH TO ENERGY SECURITY IN POLAND AND THE BALTIC STATES

2020 ◽  
Vol 18 (1/2020) ◽  
pp. 33-67
Author(s):  
Olga Stevanovic
Keyword(s):  
Energy Security ◽  
Research Question ◽  
Energy Resources ◽  
Baltic States ◽  
Realist Theory ◽  
Main Research ◽  
Security Challenges ◽  
The Us ◽  
The Subject ◽  
The Baltic

The subject of this paper encompasses US policy towards Poland and the Baltic States regarding energy security during Donald Trump’s presidency. It is discernible that vast domestic energy resources have created an opportunity for the US to project more power to these countries, and the surrounding region. We argue that Trump and his administration’s perceptions have served as an intervening variable in that opportunity assessment, in accordance with the neoclassical realist theory. The main research question addressed in this paper is whether US has used that opportunity to contribute to energy security in countries it has traditionally deemed as allies. Two aspects of US approach to energy security of the designated countries are taken into consideration: liquified natural gas exports and support for the Three Seas Initiative. The way Trump presented his policy and its results in his public statements has also been considered in this paper. The article will proceed as follows. The first subsection of the paper represents a summary of energy security challenges in Poland and the Baltic States. The second subsection is dedicated to the opportunity for the US to project energy power and to Trump’s perceptions relevant for the opportunity assessment. The third subsection deals with American LNG exports to these countries as a possible way for contributing to energy security in Poland and the Baltic States. The last part of the paper addresses the Three Seas Initiative and US approach to this platform.

scholarly journals A Review on Thermal Energy Modelling for Optimal Microgrids Management

Thermo ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 63-76
Author(s):  
Mengxuan Yan ◽  
Dongxiao Wang ◽  
Chun Sing Lai ◽  
Loi Lei Lai
Keyword(s):  
Energy Management ◽  
Thermal Energy ◽  
Critical Role ◽  
Distribution Networks ◽  
Energy Resources ◽  
Future Research ◽  
Renewable Energy Resources ◽  
Energy Modelling ◽  
Microgrid Energy Management ◽  
Combined Cooling

Microgrids have become increasingly popular in recent years due to technological improvements, growing recognition of their benefits, and diminishing costs. By clustering distributed energy resources, microgrids can effectively integrate renewable energy resources in distribution networks and satisfy end-user demands, thus playing a critical role in transforming the existing power grid to a future smart grid. There are many existing research and review works on microgrids. However, the thermal energy modelling in optimal microgrid management is seldom discussed in the current literature. To address this research gap, this paper presents a detailed review on the thermal energy modelling application on the optimal energy management for microgrids. This review firstly presents microgrid characteristics. Afterwards, the existing thermal energy modeling utilized in microgrids will be discussed, including the application of a combined cooling, heating and power (CCHP) and thermal comfort model to form virtual energy storage systems. Current trial programs of thermal energy modelling for microgrid energy management are analyzed and some challenges and future research directions are discussed at the end. This paper serves as a comprehensive review to the most up-to-date thermal energy modelling applications on microgrid energy management.

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