scholarly journals Digitalizing the Process of Tracking Technical Condition of the Main Equipment of Energy Providing Enterprises

2021 ◽  
Vol 93 ◽  
pp. 01020
Author(s):  
Lyudmila Plotnikova ◽  
Artem Bainov ◽  
Yulia Torkunova ◽  
Maria Nadezhdina
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Complete Information ◽  
Condition Index ◽  
Technical Condition ◽  
Direct Access ◽  
Repair Work ◽  
Technical Parameters ◽  
The Republic ◽  
Low Efficiency

The existing power facilities of the Republic of Tatarstan face a number of disadvantages related to the system for recording data on the technical condition of boiler and turbine equipment: manual calculation of the parameters of equipment operation, lack of direct access to complete information on the condition of equipment and, as a result, low efficiency in identifying malfunctions, deviations in the operation of equipment, carrying out repair work. Hence, the need for digitalization of the system for recording data on the technical condition of equipment was formed, in response to which software was developed for automating the data recording system and visualizing the technical parameters of reliability at thermal power plants. This proposal is distinguished by the introduction of digital technologies in the process of recording data on the technical condition of equipment, where for the first time the software includes a method for automatically calculating the technical condition index of boiler units. The results of the work will reduce the likelihood of an emergency state of power plant equipment.

THE TECHNICAL CONDITION OF THE SURVEYED HYDRAULIC UNITS IN THE MOSCOW REGION AND THE CLASSIFICATION FEATURES OF THEIR RESERVOIRS

2021 ◽  
pp. 69-79
Author(s):  
V. V. GRITSAN ◽  
Keyword(s):  
Technical Condition ◽  
Moscow Region ◽  
Risk Level ◽  
Ecological Framework ◽  
Safety Level ◽  
Repair Work ◽  
Hydraulic Unit ◽  
Technical Parameters ◽  
Characteristic Features ◽  
The Cost

The article presents the results of surveys of 311 class IV hydraulic structures carried out in 2016-2020 in the Moscow region. All the reservoirs of the surveyed hydraulic units were classified according to their characteristic features, the technical condition of culverts and dams was assessed, there was established the safety level of both separate structures and hydraulic units as a whole. During the surveys, the technical parameters of the surveyed structures were established, the state of each structure and the hydraulic unit as a whole was assessed, a possibility of their accident and a risk level for the downstream areas were considered. At the same time, recommendations were developed for the elimination of serious damage and, with the help of an examination, the amount of the cost of the necessary repair work was determined. The paper also assesses the issues of the ecological state of the areas where the hydraulic units are located and the hydraulic units themselves as blocks of the ecological framework of the territories.

scholarly journals Assessment of efficiency and prospects for the use of hybrid thermal low-capacity power plants in the Republic of Vietnam

2019 ◽  
Vol 124 ◽  
pp. 01040 ◽  
Author(s):  
D. T. Nguen ◽  
D. N. Pham ◽  
G. R. Mingaleeva ◽  
O. V. Afanaseva ◽  
P. Zunino
Keyword(s):  
Power Plants ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Climatic Conditions ◽  
Energy Sources ◽  
Thermal Power Plants ◽  
Basic Design ◽  
Air Heating ◽  
The Republic

The growing demand for energy and fossil fuels creates increased number of difficulties, while renewable energy sources are still rarely used worldwide, particularly in Vietnam. In this article hybrid thermal power plants based on gas turbine plants are discussed, the increased efficiency of which is achieved by air heating after the compressor in solar air heaters. The basic design equations and the results of evaluating the efficiency and fuel consumption are presented for two thermal power plants of 4.6 MW and 11.8 MW. The dependence of the results on the intensity of solar extraction for the climatic conditions of the Ninh Thuan province of the Republic of Vietnam is discussed.

scholarly journals Energy industry of the Republic of Buryatia: current state and prerequisites for further development

2019 ◽  
Vol 77 ◽  
pp. 03005
Author(s):  
Gennadiy Borisov ◽  
Zorikto Dondokov
Keyword(s):  
Development Strategy ◽  
Energy Security ◽  
Thermal Power ◽  
Energy System ◽  
Gas Processing ◽  
Energy Complex ◽  
The Republic ◽  
Low Efficiency ◽  
Main Activity ◽  
Further Development

The article contains the results of a study of the state of the fuel and energy complex (FEC) of the Republic of Buryatia. The role of fuel and energy complex in the economy of the republic is analyzed in the article. The main problems, the solution of which is necessary for further development of the industry, including energy security and low efficiency of heat and power production in the power system, are identified by the author. The tasks of development of transboundary interaction with the energy system of Mongolia are defined. Possible options for gasification of Buryatia were studied. To ensure increased energy security of the Republic of Buryatia and the efficiency of the Buryat energy system, the main activity is the continuation of the construction of Ulan-Ude Thermal Power Station-2. The necessity of actualization of the development strategy of the fuel and energy complex of the Baikal region based on the diversification of the fuel and energy balance due to gasification, the development of gas processing and gas chemistry, the use of non-traditional and renewable types of energy is substantiated.

scholarly journals SOIL AND RADIONUCLIDES OF EASTERN HERZEGOVINA

2019 ◽  
Vol 1 (20) ◽  
Author(s):  
Vesna Tunguz ◽  
Bojana Petrović ◽  
Zoranka Malešević ◽  
Slađana Petronić
Keyword(s):  
Power Plant ◽  
Natural Radioactivity ◽  
Power Plants ◽  
Background Activity ◽  
Thermal Power ◽  
Living Environment ◽  
Radioactive Equilibrium ◽  
Spectrometric Measurements ◽  
The Republic ◽  
The Impact

Soil is one of the most important natural resources. Measurement of natural radioactivity in soil is very important to determine the amount of change of the natural background activity with time as a result of any radioactivity release. Coal mine and thermal power plant in Gacko field is a very important industrial facility. The content of radionuclides of the soil was examined at Gacko area, slag, ash and mullock dumps in thethermal power plant Gacko and soils of dumps in the process of re-cultivation. The gamma – spectrometric measurements were done in the Institute of Nuclear Sciences “Vinča” in Belgrade.Soil samples were collected in 2010/2014 at more locations in eastern part of Republic of Srpska. After removing the stones and vegetation, all soil samples for Gama spectrometric measurements dried up to 0 105 C, sieved, placed in the plastic 500 mL Marinelli beakers and left for four weeks to reach radioactive equilibrium. Given that there are no specific regulations in the Republic of Srpska, the concentration of natural and produced radionuclides in samples from the working and living environment of thermal power plants, comparison with literature data from the region and the world is one way of evaluating the impact of the plant's operation on the soils. The results point to the necessity of regular monitoring of radioactivity in eastern Herzegovina in order to assess the impact of the technologically increased natural radioactivity.

scholarly journals Use of large irrigation pumping stations for highly manual daily regulation of capacities in the energy system of the Republic of Uzbekistan

2021 ◽  
Vol 264 ◽  
pp. 04057
Author(s):  
Boboraim Urishev ◽  
Muradilla Mukhammadiev ◽  
Abdurauf Abduaziz uulu ◽  
Hojiakbar Murodov
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Power Plants ◽  
Thermal Power ◽  
Cost Savings ◽  
Energy System ◽  
Pumping Stations ◽  
Load Schedule ◽  
The Republic ◽  
Large Irrigation

Information about the problems arising from the uneven production and consumption of energy in power systems, including in the power system of the Republic of Uzbekistan, is given on the example of a daily electrical load schedule. It is noted that to successfully solve these problems, energy is accumulated in the hours of minimum consumption so that it can be used in peak hours with high consumption, and for this purpose, pumped storage power plants are used. A diagram of hydraulic energy storage is given at large pumping stations used to accumulate water in the upper reservoir in hours of minimum loads, and the accumulated volume of water is directed to generate energy, which can be used by pumping stations to supply additional water to its consumers, replenishing its losses in hours of hydraulic energy storage. The method of selection and optimization of the main parameters of this complex, based on minimizing fuel consumption in power plants while limiting the amount of accumulated energy based on the capabilities of water and energy resources of pumping stations, is presented. The calculations using the example of the Syrdarya thermal power plant show that with the integration of five nearby pumping stations into the process of energy storage and generation, significant cost savings are achieved, and the daily load schedule is significantly leveled.

scholarly journals Prospects for the development of traditional and unconventional energy in the Chechen Republic

2021 ◽  
Vol 23 (4) ◽  
pp. 134-144
Author(s):  
R. B. Sardalov ◽  
A. A. Elmurzaev ◽  
M. V. Debiev ◽  
A. V. Khabatov
Keyword(s):  
Renewable Energy ◽  
Gas Turbine ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Regional Energy ◽  
Foreign Countries ◽  
The Republic ◽  
Electrical Loads ◽  
Effective Development

THE PURPOSE. To carry out an analysis of increasing the efficiency of energy development in the Chechen Republic. On the basis of the current structure of the power supply system of the Chechen Republic, provide indicators of the deficit of consumed electric power, as well as the generation of electricity in the republic. Consider the state of renewable energy sources in the republic and the prospects for the development of energy related to their implementation. METHODS. The analysis of the development of traditional energy, which is given close attention, is carried out, based on the experience of other subjects of Russia and foreign countries. The question of the application of the methodology for the effective development of regional energy is considered.RESULTS. A direction for the development of the energy sector of the Chechen Republic is proposed, which should inevitably be associated with thermal power plants using the most modern and efficient cycle today - steam-gas plants (CCGT), which is based on a gas turbine unit running on natural gas, being the only power plant that in the condensing mode of operation, it can supply electricity with an efficiency of more than 58%. The analysis of industrial power consumption of the largest operating and promising energy-intensive enterprises and facilities of the republic is carried out. CONCLUSION. The introduction of gas turbine plants in the centers of thermal and electrical loads helps to increase the economic efficiency of power plants. It is proposed to carry out fundamental and applied research in the field of renewable energy.

A Technoeconomic Comparison of IGCC Power Plants With Cold Gas Cleanup and Hot Gas Cleanup Units Using Indian Coals

2003 ◽  
Author(s):  
J. S. Rao ◽  
J. Neelima ◽  
G. Srikanth
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Combined Cycle ◽  
Integrated Gasification Combined Cycle ◽  
Clean Coal ◽  
Project Cost ◽  
Technical Parameters ◽  
Hot Gas ◽  
Power Block ◽  
Cold Gas

Bulk of CO2 emission comes from thermal power generation, which constitutes about 63% of total installed capacity of around 101.6 GWe. The policy makers and power utilities are increasingly favoring the introduction of clean coal technologies, which release less pollutants viz. CO2, NOx and SOx than the conventional thermal plants and have potential to operate at higher efficiencies above 42–44%. Among the clean coal technologies, Integrated Gasification Combined Cycle (IGCC) is being considered the most promising because of higher thermal efficiencies and improved environmental performance. IGCC has the added advantage of removing sulphur pollutants in bed using sorbent as against expensive external post combustion flue gas desulphurisation systems. It is proposed to set up 100MWe-demonstration plant for proving the emission standards and performance prior to commercialization. This plant is based on Frame 6 FA gas turbine designed for low Btu gas firing. The Paper presents the technical parameters and compares the overall project cost of 100MWe IGCC plant for both Cold gas cleanup unit (CGCU) and Hot gas cleanup unit (HGCU), which comprises of Gasification Island, power block, and balance of plant. Being first of kind the project cost is higher and the project cost is likely to get reduced for utility scale of 425 MW IGCC plants in future.

Development of an algorithm of implementation of programs of repair of steam boilers and turbines of TPPs based on technical condition of power equipment

2021 ◽  
Vol 14 (1) ◽  
pp. 40-44
Author(s):  
N. V. Baidakova ◽  
A. V. Afonin ◽  
A. V. Blagochinnov
Keyword(s):  
Power Plants ◽  
Thermal Power ◽  
Technical Condition ◽  
Equipment Maintenance ◽  
Power Equipment ◽  
Equipment Failure ◽  
Software Market ◽  
Maintenance System ◽  
Steam Boilers ◽  
The Cost

Deterioration and aging of the technical fleet of thermal power facilities lead to an unpredictable shutdowns of power equipment. Therefore, it is necessary to create a special approach in maintenance and repair programs, taking into account the possibility of predicting the moment of onset of the defect, its development, as well as the time of possible equipment failure. The equipment maintenance system used at the enterprises is based on the collection of retrospective data on defects and failures on the main and auxiliary equipment of the TPP and summarizing statistics on identical or similar equipment samples. Analysis of domestic and foreign methods of maintenance and organization of repair, as well as possibility of their application in modern power engineering is given. In order to create an efficient production asset management system, which addresses the problem of finding a balance between the potential risk of losses associated with both the operation of equipment and the cost of correcting defects, new class systems are now used in the software market, which carry out equipment maintenance based on the forecast. In order to optimize the equipment maintenance system and ensure uninterrupted and reliable operation of the equipment at minimum operating costs, as well as to reduce equipment downtime, unscheduled and emergency operations, it is advisable to use a modern approach to manage both reliability and risk, as well as the cost of asset ownership. This will enable to control the economic efficiency of the use of production assets. The necessity of creation of an algorithm of implementation of repair programs of power equipment base on technical condition for its use in digital power systems is shown. An algorithm is proposed for implementing the repair program of power units of electric power plants, including steam boilers and turbines of thermal power plants, differing by taking into account the technical condition of power equipment, which allows recognizing the defect that has appeared, determining the cause of its occurrence, its evolution and the duration of possible equipment failure. In the developed repair maintenance algorithm, it is proposed to make a transition from statistical empirical assessments of the technical condition of the equipment to objective estimates obtained on the basis of automated technical diagnostics systems and predictive analysis of situations.

scholarly journals Comparative analysis of renewable energy development in the Republic of Buryatia (Russia) and Mongolia

2021 ◽  
Vol 885 (1) ◽  
pp. 012015
Author(s):  
A G Badmaev
Keyword(s):  
Alternative Energy ◽  
Power Plants ◽  
Green Energy ◽  
Fuel Oil ◽  
Hydroelectric Power ◽  
Coal Fuel ◽  
Infrastructure Investments ◽  
The Republic ◽  
Low Efficiency

Abstract The constantly growing demand for electricity and relatively small energy capacities are forcing the Republic of Buryatia (to a greater extent) and Mongolia, which are limited in some types of economic activity, to look for new sources of energy. One of these restrictions is the ban on the construction of hydroelectric power plants on rivers of the Lake Baikal basin. Therefore, Buryatia and Mongolia have taken the path of building environmentally friendly power plants and have succeeded in many ways. Despite the high costs of setting up clean power plants, infrastructure investments in alternative energy are long-term and expected to be profitable. Investors (including foreign ones) placing their money in a seemingly low-profit project, having long-term expectations. Competent investors do not run after “quick money”, realising that the return period of the constructed power plants will be long, as at the moment of development they have a relatively low efficiency. Despite the criticism of some researchers [1], they invest in green energy, modern infrastructure and a future without emissions (CO2, NO2, SO2 and other gases) from burning coal, fuel oil and firewood. Other experts see in the development of alternative energy a great potential [2-5], refuting arguments of critics about high cost of electricity [6].

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