scholarly journals EVALUATION OF ENERGY EFFICIENCY OF MACHINE-BUILDING ENTERPRISES ON THE BASIS OF THE INTEGRATED INDICATOR

2021 ◽  
Author(s):  
Yevheniia Makazan ◽  
Oleksandr Veremeenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Intensity ◽  
World Market ◽  
High Energy ◽  
Machine Building ◽  
Energy Resources ◽  
Resource Saving ◽  
The World ◽  
Building Enterprises

Summary. One of the main factors in ensuring the energy security of a manufacturing enterprise is to reduce the energy intensity of manufactured products. The world's leading countries have significantly reduced energy consumption in recent years. And domestic enterprises, today, remain one of the least energy efficient in the world. A significant part of energy resources is spent due to depreciation of fixed assets and obsolete equipment. Today, the economical and efficient use of energy is one of the main issues that need to be solved. After all, the lower the level of use of energy resources, the more efficient the production, and the more competitive the products on the world market. Therefore, in order to assess the level of energy efficiency, we have systematized economic indicators that characterize the use of energy resources in the enterprise. Based on them, the structure of an integrated indicator of the level of energy efficiency of a machine-building enterprise is proposed. The structure includes four groups, which in turn include from two to four indicators. The first group of indicators characterizes the energy efficiency of the enterprise, the second - innovative activities in the direction of energy efficiency, the third - investment activities, the fourth - the socio-environmental consequences of the introduction of resource-saving technologies. An algorithm for determining the level of energy efficiency of machine-building enterprises based on the principles of systems analysis, which is based on integrated assessment, is also proposed. The implementation of the proposed algorithm will determine the level of energy efficiency of the enterprise and identify possible ways to reduce energy consumption. The proposed algorithm was tested at four machine-building enterprises of the Zaporizhia region and the obtained results were substantiated. It is established that the level of energy efficiency of the studied machine-building enterprises is very low. Which indicates the irrational use of energy and, accordingly, the very high energy intensity of the products.

scholarly journals Increasing the energy efficiency of the city-forming organizations of ferrous metallurgy

2021 ◽  
Vol 284 ◽  
pp. 01006
Author(s):  
Kymbat Kunanbaeva ◽  
Shakizada Niyazbekova ◽  
Symbat Olzheken ◽  
Sergey Ryabichenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Ferrous Metallurgy ◽  
Energy Intensity ◽  
High Energy ◽  
Energy Resources ◽  
Social Significance ◽  
High Concentration ◽  
The City

The issues of increasing the energy efficiency of the city-forming organizations of ferrous metallurgy are considered in this paper. Ferrous metallurgy is characterized by a high concentration of city-forming organizations, high social significance, and high energy intensity. The paper studies the issues of energy consumption of the city-forming organizations of ferrous metallurgy, highlights the directions for increasing the efficiency of the use of energy resources.

scholarly journals Intelligent power management at waterworks (case of Water Supply Branch of State Unitary Enterprise St. Petersburg Vodokanal)

2020 ◽  
Vol 2020 (4) ◽  
pp. 7-14
Author(s):  
Valery Glebovich Larionov ◽  
Marina Gennad'evna Treyman
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Water Supply ◽  
Energy Saving ◽  
Electricity Consumption ◽  
Optimal Solution ◽  
The State ◽  
Energy Resources ◽  
Resource Saving ◽  
Software Products

The article gives the analysis of resource saving and energy efficiency of the enterprises of water supply and waste water services of the State Unitary Enterprise “St. Petersburg Vodokanal”. There has been evaluated the consumption of electrical energy by the enterprise. The main methods of energy resources management (creating a system of rational consumption and saving of energy resources, using energy-efficient materials, equipment and technologies, identifying the potential of energy-saving measures at operating facilities) have been determined. The priority directions for reducing the production energy intensity in the water supply processes have been defined. An algorithm is proposed that includes the processes of collecting, modeling, structuring information, as well as developing an optimal solution for an enterprise. A model for optimizing work in water supply processes is presented, software products are considered that allow to control the processes of energy saving and energy efficiency. The most promising software products for their introducing them into practice of the enterprise have been identified, including General Electric Intelligent Platforms CSense. A plan for the sequential implementation of the software product into operation at the enterprise is presented. The dynamics of electricity consumption at the enterprise, the structure of energy consumption are illustrated. It is noted that the most significant contribution to the amount of energy consumption is made by the technological processes of water intake and supply. It has been substantiated that the most energy-consuming process for the enterprise (Water Supply Branch of the State Unitary Enterprise St. Petersburg Vodokanal) is replacement or maintenance of pumping equipment. The components of energy conservation of the enterprise under study are the partial regulation and automation of processes.

Efficiency of industrial enterprises energy services taking into account the environmental factor

2021 ◽  
pp. 64-72
Author(s):  
G. Myroshnychenko ◽  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Greenhouse Gas ◽  
Environmental Factor ◽  
Energy Intensity ◽  
Machine Building ◽  
Industrial Enterprise ◽  
Energy Resources ◽  
Energy Services ◽  
The Impact

Objective: to investigate the problem of environmentally friendly efficiency of energy services of an industrial enterprise in the management system of economic processes, which would be based on the assessment of financial, economic, social and environmental effects on the final activity of the industrial enterprise. Method. The following methods were used in the process of research: analysis and synthesis, logic, theoretical generalization, comparison, causation. Results. The article examines the environmental acceptability of energy production and energy consumption, which is the main component of energy security. The efficiency of energy consumption in Ukraine is analyzed. The total greenhouse gas emissions in the energy sector have been studied. It is determined that the total greenhouse gas emissions are divided into four key areas: energy generation; extraction and processing of energy resources; transport; for consumption. It is determined that the only relatively universal and comparable for international and regional comparisons indicator of energy efficiency and environmentally oriented economy is the indicator of energy intensity of GDP, taking into account purchasing power parity (PPS). The problem of efficient ecologically oriented use of energy resources for industry is substantiated. The dynamics of energy consumption of machine-building enterprises of Ukraine and their energy intensity are analyzed. It is determined that machine-building enterprises have a significant resource of energy saving, and hence a significant resource of reducing the negative impact on the environment, the implementation of which is possible primarily due to structural changes and does not require significant financial resources. It is substantiated that the service of the chief power engineer is engaged in development and implementation of measures on energy saving, energy saving and environmental protection at the enterprises. Based on the specifics of the functioning of the energy sector, a chain of influence of the efficiency of energy services on the efficiency of the industrial enterprise is formed. The peculiarity of the proposed chain is the real requirements for taking into account the impact of energy on the functioning of the enterprise as a whole and on the external environment in both forward and reverse directions. Scientific novelty. The proposed chain of influence of efficiency of energy services on efficiency of the industrial enterprise allows to position efficiency of energy economy of the industrial enterprise in the general system of formation of efficiency of the enterprise and to specify its components through financial and economic, social and ecological effect. Practical significance. The study proved the need to clarify by taking into account the impact of the energy service in the form of emissions, discharges and wastes, which allows you to manage the efficiency of the enterprise as a whole taking into account the efficiency triad (environmental, social, economic component). as a strategic priority for the development of Ukraine. Key words: environmental factor, energy resources, energy intensity, environmental safety, energy saving.

scholarly journals Statistical Assessment of Energy Efficiency of Production and Consumption of Energy Resources in Ukraine

2017 ◽  
pp. 42-52
Author(s):  
A. Yu. Deina
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Natural Gas ◽  
Energy Intensity ◽  
Energy Resources ◽  
Energy Services ◽  
Low Level ◽  
Production And Consumption ◽  
Energy Independence ◽  
High Level

Energy independence of the country - one of the key links of the economy policy of many countries, including Ukraine, which full high-quality functioning of economy depends on. Full functioning of all economic institutes is possible only at reliable providing of fuel and energy resources. Economy life in general fades without skillful and rational use of energy resources. One of the main objectives of sustained economic growth and ensuring energy independence is connected with need of achievement of high, competitive level of efficiency of use of fuel and energy resources. Complex assessment of efficiency of production and consumption of energy resources provides use of a set of the indicators characterizing versatility and complexity of energy efficiency category. The method of multidimensional average has been used for calculation of complex assessment of energy efficiency, at the same time the following indicators have been chosen: energy intensity of GDP, export and import of energy resources, production and consumption of energy resources, investments into the energy complex, oil prices, tariffs for natural gas and the electricity for the population, a share of natural gas in the structure of energy consumption and so on. Complex assessment of efficiency of production and consumption of energy resources is executed on two blocks - for producers and for consumers (population). Extremely low level of energy efficiency for both producers and consumers (population) of energy services during 2010-2016 is observed. At the same time factors which influence the low level of integrated assessment of energy efficiency of production and consumption of energy resources are revealed. Achievements of the actual levels of integrated coefficients of energy efficiency substantially depended recently on introduction of extensive factors of development. Such situation has negative effect on achievement of energy independence of Ukraine. The current state of efficiency of production and consumption of energy resources is characterized by existence of a wide range of problems. It is possible to distinguish the lack of the principles of resource-saving of producers and economical use at consumers of energy services/ It results to very high level of energy consumption, the high level of energy intensity, the need to import of fuel and energy resources from other countries because of insufficiency of own production, the low level of income of consumers and groundlessness of increase in tariffs for energy services that promotes increase in level of debt of the population for the provided services and an unprofitable financial condition of the enterprises of the energy complex.

scholarly journals Increasing Energy Efficiency of the Executive Mechanisms of Intellectual Systems

2021 ◽  
pp. 23-29
Author(s):  
A Djalilov ◽  
R Baratov ◽  
E Sobirov ◽  
M Begmatov ◽  
X Valixonova
Keyword(s):  
Water Management ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Positive Solution ◽  
Energy Efficient ◽  
Low Energy ◽  
Energy Resources ◽  
Water Management System ◽  
Low Energy Consumption ◽  
The World

At the same time, the demand for water and energy resources around the world is growing year by year. This requires the efficient use of available water and energy resources. Currently, attention is paid to the low energy consumption of devices manufactured in all areas. In particular, in our country, scientific research is being conducted to create energy-efficient devices in the water management system. This article is devoted to the positive solution of the listed problematic issues.

scholarly journals GLOBAL TRENDS IN THE DEVELOPMENT OF ENERGY-SAVING TECHNOLOGIES

2020 ◽  
pp. 31-43
Author(s):  
S. Gushchin ◽  
A. Seminenko ◽  
Chao Shen
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
State Level ◽  
Hot Water ◽  
Energy Resources ◽  
Historical Background ◽  
Modern World ◽  
Improve Energy Efficiency ◽  
The World

The need to provide heat, hot water and electricity are the basic needs of society, and throughout the history of mankind, they form the greatest demand for energy resources. In the modern world, energy consumption by countries all over the world is constantly increasing; it’s creating new problems such as lack of energy resources, their rise in price, depletion of energy sources, environmental threats, and others. In connection with the problem of saving, rational and efficient use of energy resources and huge energy losses in the construction industry, this article considers world experience of application of energy-saving technologies and other measures to improve energy efficiency, analyzes the current situation in the field of energy saving in Russia. Prerequisites to the study of energy efficiency problems are considered, state of energy consumption and energy saving in China, USA, some EU countries and Russia is analyzed, the world experience of application ways of energy efficiency improving at the state level is considered. The problems and historical background that hinder the development of Russia in the field of energy saving are discussed. Specific proposals to improve energy efficiency in Russia have been put forward based on an analysis of international experience.

scholarly journals System Analysis and Solution of Energy Efficiency Problems in Machine-Building Production

2021 ◽  
Vol 346 ◽  
pp. 03057
Author(s):  
A.A. Gavrilova ◽  
E.A. Matveeva ◽  
A.G. Salov
Keyword(s):  
Energy Efficiency ◽  
System Analysis ◽  
High Energy ◽  
Machine Building ◽  
Service Industries ◽  
Auxiliary Equipment ◽  
Increase Energy Efficiency ◽  
Building Enterprise ◽  
The Impact ◽  
Building Enterprises

The article discusses application of system analysis to identify and solve the problems of energy efficiency of machine-building enterprises. The increase in the efficiency of a machine-building enterprise is influenced by many factors, among which tariffs and prices for energy services have a significant impact. The increase in tariffs for these services has a direct impact on the increase in cost. Energy efficiency objectives also include: high energy capacity of products; insufficient efficiency of generation, transportation and distribution of energy resources; low reliability of power supply; insufficient volume or low reliability of information on the energy infrastructure operation. As a result of the system analysis, directions have been identified that enable one to increase energy efficiency, which leads to a decrease in the cost of production, and, consequently, to an increase in the profit of the enterprise. Directions for increasing the energy efficiency of machine-building enterprises can be identified as a result of system studies of the activities of all divisions of the main, auxiliary and service industries. The greatest effect from energy-saving measures is achieved in the process of rational energy consumption, which is advisable to implement at machine-building enterprises. Reduced production output caused by the global economic crisis that began in 2008 and the impact of the 2020-2021 pandemic have resulted in the equipment operation at reduced loads and in off-design modes, which in turn has led to the auxiliary equipment consuming almost the same amount of energy as at nominal performance. This circumstance leads to an increase in costs. A mathematical model has been developed, in which a machine-building enterprise is considered as a set of functional elements and components with a hierarchical structure of connections between them, described in the form of a ‘6-tuple’.

PREREQUISITES FOR THE DEVELOPMENT OF NUCLEAR ENERGY IN THE GLOBAL ECONOMY

2020 ◽  
Vol 2 (3) ◽  
pp. 153-158
Author(s):  
E. V. YANUSIK ◽  
Keyword(s):  
Energy Consumption ◽  
Economic Efficiency ◽  
Global Economy ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Energy ◽  
World Market ◽  
Global Energy ◽  
The World ◽  
Global Energy Consumption

The article discusses the main prerequisites for the development of nuclear energy in the global econo-my, also defines nuclear energy and discusses the structure of global energy consumption. The article proves that the crucial prerequisite for the development of nuclear energy in the world market is the economic efficiency of nuclear power plants.

scholarly journals Energy Consumption Analysis and Characterization of Healthcare Facilities in the United States

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3775 ◽  
Author(s):  
Khaled Bawaneh ◽  
Farnaz Ghazi Nezami ◽  
Md. Rasheduzzaman ◽  
Brad Deken
Keyword(s):  
United States ◽  
Energy Consumption ◽  
Energy Intensity ◽  
The United States ◽  
High Energy ◽  
Total Energy Consumption ◽  
Healthcare Facilities ◽  
Energy Consumption Analysis ◽  
Consumption Data ◽  
End Use

Healthcare facilities in the United States account for 4.8% of the total area in the commercial sector and are responsible for 10.3% of total energy consumption in this sector. The number of healthcare facilities increased by 22% since 2003, leading to a 21% rise in energy consumption and an 8% reduction in energy intensity per unit of area (544.8 kWh/m2). This study provides an analytical overview of the end-use energy consumption data in healthcare systems for hospitals in the United States. The energy intensity of the U.S. hospitals ranges from 640.7 kWh/m2 in Zone 5 (very hot) to 781.1 kWh/m2 in Zone 1 (very cold), with an average of 738.5 kWh/m2. This is approximately 2.6 times higher than that of other commercial buildings. High energy intensity in the healthcare facilities, particularly in hospitals, along with energy costs and associated environmental concerns make energy analysis crucial for this type of facility. The proposed analysis shows that U.S. healthcare facilities have higher energy intensity than those of most other countries, especially the European ones. This necessitates the adoption of more energy-efficient approaches to the infrastructure and the management of healthcare facilities in the United States.

scholarly journals COMPETITIVENESS OF DOMESTIC PRODUCTS IN THE INTERNATIONAL MACHINE BUILDING MARKET: REALITIES AND PROSPECTS

2021 ◽  
pp. 80-91
Author(s):  
V.H. Gerasymchuk ◽  
O.O. Zrobok
Keyword(s):  
Mechanical Engineering ◽  
International Competitiveness ◽  
Legal Regulation ◽  
High Energy ◽  
Machine Building ◽  
Capital Investments ◽  
Job Seekers ◽  
Step Method ◽  
Machine Building Complex ◽  
Building Enterprises

The essence of the concept of "product competitiveness" is considered. The factors of competitiveness of products of machine-building enterprises on the international market are systematized. Based on the systematization of quantitative and qualitative methods of assessing the level of competitiveness, a step-by-step method for mechanical engineering enterprises is proposed. The state of the machine-building complex of Ukraine is considered. The dynamics of factors of international competitiveness of machine-building enterprises is analyzed: number of enterprises by machine-building branches; volume of sales and production of machine-building products; shares of mechanical engineering products in domestic exports; capital investments of enterprises in the fields of mechanical engineering. As a result of diagnosing the factors, a PEST-analysis of the domestic machine-building complex with the division of factors into political, economic, social and technological was carried out. It is established that machine-building enterprises of Ukraine have a low level of competitiveness in international markets due to a number of negative factors, the key of which are: insufficient demand in foreign markets, high dependence on fluctuations in resource prices (economic); imperfect legislation, the war in eastern Ukraine (political); technological and moral obsolescence of products and fixed assets, high energy consumption and low productivity, low costs of R&D (technological); lack or outflow of qualified manufacturers abroad, low wages, low motivation of job seekers to employment in the field of mechanical engineering (social). Measures to increase international competitiveness which are proposed include following: preferential lending; revival of basic and applied science; reforming the legal regulation of intellectual property; ensuring compliance of products with European technical regulations. Prospects for the development of domestic engineering: digitalization, development of robotics, technology of Industry 4.0, infrastructure of technology parks.

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