scholarly journals Prospects for the use of coal of the Republic of Sakha (Yakutia) for energy needs

2020 ◽  
Vol 209 ◽  
pp. 05016
Author(s):  
Nikita Pavlov ◽  
Liudmila Takaishvili ◽  
Vasiliy Zakharov
Keyword(s):  
Power Plants ◽  
Mining Industry ◽  
Energy Resources ◽  
Low Grade ◽  
Coal Processing ◽  
Coal Resources ◽  
Coal Deposits ◽  
Energy Needs ◽  
The Republic ◽  
Small Capacity

The Republic has significant resources for the development of mining, export and domestic consumption, including the energy needs of the republic and neighboring regions. The article provides a retrospective analysis of the supply of Yakut coal for energy needs and the structure of capacities by energy resources. The estimation of power-generating coal resources, including low-grade products of coking coal processing of the Republic of Sakha (Yakutia), is given. Characteristics of coal deposits are presented, which are useful for energy needs. Projects for the development of coal-fired energy in the Republic of Sakha (Yakutia) are presented. The Republic of Sakha (Yakutia) has significant coal resources for the development of coal-fired power plants. Coal power facilities play a closing role in meeting the demand for electricity and heat. The use of coal for the development of coal-fired energy in the Republic of Sakha (Yakutia) can be determined by the development of mining industry, the construction of power plants of small capacity in isolated areas, as well as the possibility of exporting coal-fired power plants.

scholarly journals Ash From Thermal Power Plants as Secondary Raw Material

2007 ◽  
Vol 58 (2) ◽  
pp. 233-238 ◽  
Author(s):  
Vladica Čudić ◽  
Dragica Kisić ◽  
Dragoslava Stojiljković ◽  
Aleksandar Jovović
Keyword(s):  
Power Plants ◽  
Negative Impact ◽  
Thermal Power ◽  
Raw Material ◽  
Low Grade ◽  
Thermal Power Plants ◽  
Heating Value ◽  
Prevention Programmes ◽  
Secondary Raw Material ◽  
The Republic

Ash From Thermal Power Plants as Secondary Raw MaterialThe basic characteristic of thermal power plants in the Republic of Serbia is that they use low-grade brown coal (lignite) as a fuel. Depending on the location of coal mines, lignite may have different properties such as heating value, moisture, and mineral content, resulting in different residue upon combustion. Because of several million tonnes of ash and slag generated every year, their granularmetric particle size distribution, and transport and disposal methods, these plants have a negative impact on the environment. According to the waste classification system in the Republic of Serbia, ash and slag from thermal power plants are classified as hazardous waste, but with an option of usability. The proposed revision of waste legislation in Serbia brings a number of simple and modern solutions. A procedure is introduced which allows for end-of-waste criteria to be set, clarifying the point where waste ceases to be waste, and thereby introducing regulatory relief for recycled products or materials that represent low risk for the environment. The new proposal refocuses waste legislation on the environmental impacts of the generation and management of waste, taking into account the life cycle of resources, and develops new waste prevention programmes. Stakeholders, as well as the general public, should have the opportunity to participate in the drawing up of the programmes, and should have access to them.

scholarly journals The influence of solar energy on the development of the mining industry in the Republic of Cuba

2021 ◽  
Vol 249 ◽  
pp. 427-440
Author(s):  
Yaroslav Shklyarskiy ◽  
Daniel Díaz Guerra ◽  
Emiliia Iakovleva ◽  
Anton Rassõlkin
Keyword(s):  
Solar Energy ◽  
Power Plants ◽  
Solar Power ◽  
Mining Industry ◽  
Energy System ◽  
Hydroelectric Power ◽  
Tracking Systems ◽  
Solar Tracking ◽  
Solar Power Plants ◽  
The Republic

Cuba is traditionally considered a country with an underdeveloped industry. The share of the mining and metallurgical industries in the gross industrial production of the republic is small – about 3 % of GDP. The development of deposits and the extraction of nickel ores is an important sector of the economy of the Republic of Cuba, since the largest reserves of nickel and cobalt on the North American continent are located on the territory of the country. The development of the country energy system can serve as a growth factor in this sector of the economy. Due to climatic features and impossibility of integrating new capacities into the energy system through the construction of hydroelectric power plants, solar energy is a promising direction. Determining the feasibility of using solar tracking systems to increase the generation of electricity from solar power plants is one of the main challenges faced by engineers and renewable energy specialists. Currently, there are no solar tracking systems in Cuba that can provide information to assess the effectiveness of this technology in the country. The lack of the necessary technologies, as well as the high cost of developing solar power plants with tracking systems, limit the widespread introduction of such complexes. Hence follows the task of creating an inexpensive experimental model that allows assessing the effectiveness of tracking systems in specific weather conditions of the Republic of Cuba. This model will allow in future to increase the efficiency of electrical complexes with solar power plants, which provide power supply to the objects of the mineral resource complex and other regions.

scholarly journals An Evaluation of Current Status of Renewable Energy Sources in India

2019 ◽  
Vol 8 (10) ◽  
pp. 1234-1239 ◽  
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Energy Sector ◽  
Energy Resources ◽  
Current Status ◽  
Renewable Energy Resources ◽  
Energy Needs ◽  
Hybrid Renewable Energy

Many people in rural society of India does not have access to natural energy resources like LPG , electricity as there is no facilitation of grid erection. Hence it becomes imperative for country like India to go for renewable energy resources as alternative to conventional energy resources. This paper evaluations the potential of different sources of renewable energy in India. It also highlights the trends in the growth of renewable energy sector, although at the same time shows that there is need of a hybrid renewable energy model for rural electrification in India. Paper also shows the scope in using the agriculture waste as bio fuel which burned otherwise and prompt health hazards besides environmental pollution, also describing many technologies which are in the demonstration stage like Tidal, OTEC, Solar thermal power plants. Many constraints put development in the field of solar and wind sector, on hold like availability of solar rays throughout the year . The main aim of the paper is to evaluation all possible options in renewable energy sector so that large segment of rural population can have access to electricity and to meet their basic energy needs.

scholarly journals Formation of Fuel and Energy System of Yakutia in 1920s—1930s

2021 ◽  
pp. 278-291
Author(s):  
N. I. Burnasheva ◽  
I. I. Kovlekov
Keyword(s):  
Industrial Development ◽  
Mining Industry ◽  
Integrated Approach ◽  
Energy System ◽  
Coal Industry ◽  
Coal Deposits ◽  
National Economic ◽  
History Of ◽  
The Creation ◽  
The Republic

The history of the formation of the fuel and energy system of Yakutia in the 1920s—1930s is considered, the process of its formation as the basis of the industrial development of the Yakut ASSR is shown. It is noted that, starting with the search and exploration of coal deposits, the process of creating a coal industry in Yakutia only at the end of the 1920s was marked by a transition to the stage of industrial development and coal mining. It is shown that over the next decade, from the first volumes of coal mined at the Sangarsky, Zyryansky, Dzhebariki-Khaisky, Kangalassky deposits, the coal industry of the republic has grown into the main base of its industrial development. It is noted that the main goal of the development of coal deposits was the solution of national economic problems, among which the leading was the creation of conditions for the development of the gold mining industry.  It is emphasized that it is no less important to provide coal for sea and river transport, which has gradually turned into the main transport artery for the transportation of goods to the republic. It is indicated that the creation of the coal industry became the basis for the industrial development of the Yakut ASSR. It is concluded that the historical experience of the formation of coal production serves as an example of a planned, integrated approach to the formation of industries in the region 

scholarly journals Multivariate Geostatistical Modeling of Lower Calorific Value in Multi-Seam Coal Deposits

2020 ◽  
Vol 10 (18) ◽  
pp. 6208
Author(s):  
Daphne Sideri ◽  
Christos Roumpos ◽  
Francis Pavloudakis ◽  
Nikolaos Paraskevis ◽  
Konstantinos Modis
Keyword(s):  
Power Plants ◽  
Mining Industry ◽  
Principal Component ◽  
Calorific Value ◽  
Mine Planning ◽  
Borehole Data ◽  
Multivariate Geostatistics ◽  
Quality Properties ◽  
Research Outcomes ◽  
Coal Deposits

The estimation of fuel characteristics and spatial variability in multi-seam coal deposits is of great significance for the optimal mine planning and exploitation, as well as for the optimization of the corresponding power plants operation. It is mainly based on the quality properties of the coal (i.e., Lower Calorific Value (LCV), ash content, CO2, and moisture). Even though critical, these properties are not always measured in practice for all available borehole samples, or, they are generally estimated by using non-parametric statistics. Therefore, spatial modeling of LCV can become problematic due to the limited number of data. Thus, the use of other available correlated attributes might be helpful. In this research, techniques of multivariate geostatistics were used to estimate and evaluate the spatial distribution of quality properties in a multi-seam coal deposit, with special reference to the LCV. More specifically, kriging, cokriging, and Principal Component Analysis (PCA) techniques were tested in a case study as estimators of the LCV, using an extensive set of borehole data from the South Field lignite mine in Ptolemais, Greece. The research outcomes show that the application of kriging with two PCA factors and the use of inverse transform result in the best LCV estimates. Moreover, cokriging with two auxiliary variables gives more accurate values for a LCV estimate, in relation to the kriging technique. The research outcomes could be considered significant for the coal mining industry, since the use of correlated quality attributes for the estimation of LCV may contribute to a reduction of the estimation uncertainty at no additional drilling cost.

CURRENT STATE AND PROSPECTS FOR THE DEVELOPMENT OF BIOGAS ENERGY IN UZBEKISTAN

2020 ◽  
Vol 2 (7) ◽  
pp. 171-184
Author(s):  
Z. U. SAIPOV ◽  
◽  
G. A. ARIFDZHANOV ◽  
Keyword(s):  
Renewable Energy ◽  
Organic Waste ◽  
Agricultural Sector ◽  
Renewable Energy Sources ◽  
Energy Resources ◽  
Agricultural Producers ◽  
Biogas Plants ◽  
The Republic ◽  
Rural Producers ◽  
Agricultural Regions

Energy is one of the main pillars of the state’s economy, which is currently facing serious problems due to depletion of mineral energy resources and the threatening environment. As a result, presently around the world there is a rapid growth and development of energy-efficient technologies and the use of renewable energy sources (RES), providing an increase in energy resources, as well as environmental and social effects. One of the most relevant and promising areas of renewable energy development is the disposal and processing of organic waste in biogas plants, and this is particularly relevant in agricultural regions. In this regard, this paper considers the state and prospects for the development of bioenergy in agricultural regions of Uzbekistan, where half of the population of the republic lives. The potential of organic waste from livestock and poultry farming of the agricultural sector was determined, and it was revealed that the use of biogas plants for the disposal of manure and litter is clearly a profitable production and requires close attention from rural producers. The introduction of biogas technologies for the bulk of agricultural producers is an urgent task, that will ensure not only a solution to the waste problem, but it will also provide a solution to energy, agricultural, environmental and social problems in rural regions of the republic.

Prospects for development of the Russian energy projects on the Korean Peninsula

2020 ◽  
Vol 92 (3) ◽  
pp. 8-19
Author(s):  
O.V. Demina ◽  
Keyword(s):  
Transmission Lines ◽  
Korean Peninsula ◽  
Power Transmission ◽  
Russian Far East ◽  
Far East ◽  
Primary Energy ◽  
Energy Resources ◽  
Republic Of Korea ◽  
Energy Projects ◽  
The Republic

The article assesses prospects of the Russian-Korean cooperation and analyzes risks and opportunities of the trilateral energy projects on the Korean Peninsula. The author noted that energy sector is the key area of bilateral cooperation between Russia and the Republic of Korea, but it’s mainly represented by the trade in primary energy resources. The study identified the export potential of Russian hydrocarbons to the market of the Republic of Korea. As for the DPRK, the paper shows that within bilateral relations geopolitical interests prevail over the economic ones. The small capacity of the DPRK's domestic market and the absence of fixation sources do not allow considering it as an independent full-fledged market for the Russian energy resources. The main goal of the energy strategy of Russia and the Russian Far East is increasing the volume of exports of the primary energy resources to the APR countries. Russian prospects for the new product niches in the energy markets of the Republic of Korea are associated with the implementation of trilateral energy projects among Russia, the DPRK and the Republic of Korea. It includes creation of the interstate power transmission lines and construction of a gas pipeline. All parties are interested in these projects. As for Russia, it is primarily the expansion of energy exports, including occupation of the commodity niches in new markets, and strengthening of the political role in the region. As for the Republic of Korea, these projects mean diversification of supplies and costs’ reduction of the import energy resources. And as for the DPRK, these projects imply an additional source of financing (as payment for transit), improvement of the country's energy infrastructure and reduction of the deficit of energy resources. Despite the prospects, the author determined that in the near future implementation of the projects is unlikely due to the unresolved transit risks.

scholarly journals Selection of Heat Pump Capacity Used at Thermal Power Plants under Electricity Market Operating Conditions

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 226
Author(s):  
Milana Treshcheva ◽  
Irina Anikina ◽  
Vitaly Sergeev ◽  
Sergey Skulkin ◽  
Dmitry Treshchev
Keyword(s):  
Electric Power ◽  
Heat Pump ◽  
Heat Load ◽  
Power Plants ◽  
Thermal Power ◽  
Heat Pumps ◽  
Operating Conditions ◽  
Energy Resources ◽  
Thermal Power Plants ◽  
Maximum Heat

The percentage of heat pumps used in thermal power plants (TPPs) in the fuel and energy balance is extremely low in in most countries. One of the reasons for this is the lack of a systematic approach to selecting and justifying the circuit solutions and equipment capacity. This article aims to develop a new method of calculating the maximum capacity of heat pumps. The method proposed in the article has elements of marginal analysis. It takes into account the limitation of heat pump capacity by break-even operation at electric power market (compensation of fuel expenses, connected with electric power production). In this case, the heat pump’s maximum allowable capacity depends on the electric capacity of TPP, electricity consumption for own needs, specific consumption of conditional fuel for electricity production, a ratio of prices for energy resources, and a conversion factor of heat pump. For TPP based on combined cycle gas turbine (CCGT) CCGT-450 with prices at the Russian energy resources markets at the level of 2019, when operating with the maximum heat load, the allowable heat pump capacity will be about 50 MW, and when operating with the minimum heat load—about 200 MW.

scholarly journals Python TensorFlow Big Data Analysis for the Security of Korean Nuclear Power Plants

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1467
Author(s):  
Sangdo Lee ◽  
Jun-Ho Huh ◽  
Yonghoon Kim
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Network Traffic ◽  
Nuclear Power ◽  
Power Plants ◽  
Security Requirements ◽  
Republic Of Korea ◽  
Continuous Data ◽  
Cyber Attack ◽  
The Republic

The Republic of Korea also suffered direct and indirect damages from the Fukushima nuclear accident in Japan and realized the significance of security due to the cyber-threat to the Republic of Korea Hydro and Nuclear Power Co., Ltd. With such matters in mind, this study sought to suggest a measure for improving security in the nuclear power plant. Based on overseas cyber-attack cases and attacking scenario on the control facility of the nuclear power plant, the study designed and proposed a nuclear power plant control network traffic analysis system that satisfies the security requirements and in-depth defense strategy. To enhance the security of the nuclear power plant, the study collected data such as internet provided to the control facilities, network traffic of intranet, and security equipment events and compared and verified them with machine learning analysis. After measuring the accuracy and time, the study proposed the most suitable analysis algorithm for the power plant in order to realize power plant security that facilitates real-time detection and response in the event of a cyber-attack. In this paper, we learned how to apply data for multiple servers and apply various security information as data in the security application using logs, and match with regard to application of character data such as file names. We improved by applying gender, and we converted to continuous data by resetting based on the risk of non-continuous data, and two optimization algorithms were applied to solve the problem of overfitting. Therefore, we think that there will be a contribution in the connection experiment of the data decision part and the optimization algorithm to learn the security data.

scholarly journals New and Renewable Energy Policy in Developing Indonesia's National Energy Resilience

2019 ◽  
Vol 125 ◽  
pp. 10004
Author(s):  
Sekar Anggun Gading Pinilih ◽  
Wiana Laelaputri Chairunnisa
Keyword(s):  
Renewable Energy ◽  
Carrying Capacity ◽  
Energy Security ◽  
Energy Resources ◽  
Renewable Energy Policy ◽  
Legal Research ◽  
Security Research ◽  
New Energy ◽  
National Energy Security ◽  
The Republic

This study aims to discuss new and renewable energy policies as an effort to build national energy security. Research methods use legal research that searches from various perspectives. The implementation of analysis, using the method of regulatory and focus on energy, generally has many impacts. First, the policy on the use of new and renewable energy aims to prepare the carrying capacity of national energy security. Implementation this policy has not been fully implemented because there are still many obstacles faced. Second, the use of new energy and renewable energy as an effort to build national energy security in Indonesia is still not optimal. Even though Indonesia is blessed with abundant natural and energy resources in all its regions and the need for new and renewable energy as the future fate of energy security in the unitary state of the Republic of Indonesia for people's welfare as a step to reduce the increase in consumption of fossil-based energy.

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