Journal articles on the topic 'Energy generating enterprises'
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1
HILORME, Tetiana. "Substantiation of management decisions related to enterprise development based on energy efficiency." Economics. Finances. Law, no. 7 (July 30, 2020): 23–27. http://dx.doi.org/10.37634/efp.2020.7.5.
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The paper investigates the peculiarities of constructing a cognitive model of development for enterprises on the basis of energy efficiency. The stages of conducting cognitive modeling for managing the development of enterprises in the energy industry have been determined within the scope of work. Cognitive analysis and modeling are conceptually innovative elements within the structure of the system dedicated to generation of efficient management decisions, which further allows: to study problems with vague factors and interconnections; to account for the impact of changes in the external environment; to use the objective trends in the innovative development of the situation to company’s advantage. Such technologies are increasingly gaining trust and confidence with organizations engaged in strategic and operational planning on all levels and across all spheres of innovation management of enterprise development. Employing cognitive technologies in the economic sphere enables to develop and substantiate a strategy of innovation management of enterprise development with the consideration for the impact of changes in external and internal environment. The work examines the factors of the cognitive model of innovation management of development for enterprise of energy industry based upon four sectors: enterprises in the energy sector; energy generation business; government; ecology. A study has been conducted in relation to the impact of 16 factors of external business environment on generating adjective decisions with regard to managing the development of enterprises in the energy industry on the basis of impulse modeling. It has been proven that within the system of innovation management of enterprise development the key object-oriented factor is the «Level of enterprise development» while other factors remain controllable. It is namely due to the dynamic analysis that it becomes possible to determine stabilizing and destabilizing factors of influence on the development of enterprises. Within the scope of the paper, the ranges of change in indicator factors related to management of enterprise development in the «min-max» system have been identified. Prospects of further research lie with constructing scenarios for development of enterprises in the energy industry, particularly with the implementation of impulse modeling that would allow to elaborate development strategies, specifically concerning the use of renewable sources of energy.
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Timofeev, E., and A. Erk. "Forecasting the impact on the environment of generating sources in agricultural production." E3S Web of Conferences 262 (2021): 01036. http://dx.doi.org/10.1051/e3sconf/202126201036.
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The development of rural electrification is aimed at distributed energy, i.e. availability of autonomous sources of electricity and heat generation. Generation sources can use coal, fuel oil, gas, local and alternative energy sources as fuel and energy resources. This causes additional emissions of pollutants. Prediction of negative impact on the environment depends on the quantity and quality of emissions during the operation of various types of installations that generate electric and thermal energy. The purpose of the study is to select and substantiate the most attractive method for predicting the impact on the environment of generating sources in agricultural production. The widespread introduction of distributed energy using local and renewable energy sources will significantly reduce emissions of pollutants due to a decrease in energy intensity, matching the required load with the capacity of generation sources, using the most energy efficient sources, and widespread introduction of renewable energy sources. In this regard, it is advisable to forecast the impacts by the scenario method considering the implementation of the proposed distributed power supply system. The implementation of measures developed considering the analysis of the forecast of the negative impact on the environment of generating plants in agricultural enterprises will reduce the negative impact on the environment by introducing energy-efficient technologies into the energy balance of the enterprise, as well as increase production by up to 20% and increase sustainability. rural areas.
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Choi, Eunsoo, Eunji Kim, Inji Kim, and Incheol Choi. "Attitude Toward Social Enterprises: A Comparison between For-Profit and Social Enterprise Employees." Sustainability 12, no. 7 (March 30, 2020): 2720. http://dx.doi.org/10.3390/su12072720.
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Social enterprises, organizations that pursue social purposes while generating profits, have garnered attention recently as potential key players for a sustainable economy. However, research on the perception of social enterprises by lay people has been ignored even though positive reception of social enterprises is an important condition for their sustainability. In the present study, we compared for-profit enterprise employees (n = 200) and social enterprise employees (n = 162) and examined their differences in attitude toward the profit-making aspects of social enterprises as well as the employees working for social enterprises. The results showed that for-profit enterprises overestimated that social enterprise employees were extrinsically motivated and underestimated their prosocial intentions. In addition, for-profit enterprise employees were less favorable toward the profit-making aspects of social enterprises, including payment of high salaries for the social enterprise employees and using donations to run social enterprises. Interestingly, the difference between for-profit and social enterprise employees in their attitude toward the profit-making aspects of social enterprises was explained by lay theories of altruism called “pure altruism.” The present research makes important contributions by identifying the psychological mechanisms that underlie individuals’ perceptions and attitude toward social enterprises.
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Soares, Diego Moreira. "The Emotionality of Social Enterprises: Mechanisms and Challenges for Generating Emotional Energy." Academy of Management Proceedings 2019, no. 1 (August 1, 2019): 14540. http://dx.doi.org/10.5465/ambpp.2019.14540abstract.
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Pletnev, Dmitri, Maxim Kazadayev, and Victor Barkhatov. "Human Capital in Russian Power Generating Corporations." E3S Web of Conferences 157 (2020): 04028. http://dx.doi.org/10.1051/e3sconf/202015704028.
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The Russian energy industry is on the verge of major changes. The potential of existing technologies has been exhausted, and to ensure economic growth, the development and implementation of new approaches in the field of electricity generation is necessary. The human capital of enterprises is the most important driver of changes in the energy sector. The purpose of the article is to analyze the influence of factors characterizing human capital on the effectiveness of Russian power generating corporations. The study found that the efficiency of power generating corporations is most strongly influenced by the share of managers in the structure of employment and labor productivity. Such indicators as the share of specialists with higher education and staff turnover did not significantly affect the efficiency of power generating corporations.
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Straková, Jarmila, Ismi Rajiani, Petra Pártlová, Jan Váchal, and Ján Dobrovič. "Use of the Value Chain in the Process of Generating a Sustainable Business Strategy on the Example of Manufacturing and Industrial Enterprises in the Czech Republic." Sustainability 12, no. 4 (February 18, 2020): 1520. http://dx.doi.org/10.3390/su12041520.
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This paper presents a method of generating a business strategy using value chain analysis. There were 186 manufacturing and industrial enterprises from the Czech Republic. The analysis was carried out using mathematical–statistical methods (dimensional reduction, logit regression and its transformation in order to objectify the opinion level of the managers) and with a neural network in terms of validation of the results of the mathematical–statistical methods. The aim was to determine the significance of different parts of the value chain in terms of their impact on the profitability of an enterprise and to demonstrate its important role in the process of generating business strategy. The significance for the profitability of the enterprises was statistically proven in the area of scientific and technological development, input logistics and human resource management. These parts were identified by the authors as the golden triangle of manufacturing and industry. Purchasing and output logistics were identified as the parts with a negative impact to the profitability of the enterprises. Strong underestimation of scientific and technological development by the top managers of the manufacturing and industrial enterprises is seen as a very negative finding. Neural networks showed higher statistical sensitivity compared to the mathematical–statistical methods (dimensional reduction and logit regression). They defined the value sector chain with the following structure (ranked from the highest degree of positive impact on the profitability of the enterprise): human resource management, scientific and technological development, production, input logistics, purchasing, material management, output logistics, enterprise infrastructure, marketing and sales, service and other supporting services. In conclusion, it is stated that the sector value chain of manufacturing and industrial enterprises will be further decomposed into value chain models of specific industries of the production and industry, such as engineering and construction, intended for direct use in different business entities to generate their unique value chains and corporate strategies.
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Saik, Pavlo, Mykhailo Petlovanyi, Vasyl Lozynskyi, Kateryna Sai, and Artem Merzlikin. "Innovative Approach to the Integrated Use of Energy Resources of Underground Coal Gasification." Solid State Phenomena 277 (June 2018): 221–31. http://dx.doi.org/10.4028/www.scientific.net/ssp.277.221.
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Topical issues concerning the low efficiency of underground coal mining from thin and very thin seams as well as the problems of reserves left in mine fields by the closed-down enterprises resulting in substantial coal reserve losses have been highlighted. Alternative use of the unextracted energy resources is their physical and chemical transformation with the change in aggregate state including the possibility to generate valuable chemical and energy products capable of substituting certain share of natural gas being imported. Attention has been paid to budget reallocation in the process of coal enterprise restructuring to invest the projects of nontraditional techniques aimed at physical and chemical coal transformation; among other things, it concerns in-place construction of energy generating enterprises for underground coal gasification. Results of the studies concerning the analysis of the world 50-year interest in the techniques of gasification and hydrate formation explained and described in the top scientific journals being among those added to such scientometric data bases as Scopus and Web of Science; they confirm the expediency of the scientific tendency development in Ukraine. Innovative conversion scheme for solid fuel has been proposed; the scheme involves the integrated use of the generated energy and chemical products in the process of in-place coal gasification. Development of systems to gasify, cogenerate, and form hydrates at the territory of coal mines will make it possible to process coal in place with energy, heat energy, and chemical raw material generation depending upon the situation in energy market and chemical market.
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Gong, Wei, Wei Jiang, Huipo Zhou, Ying Le, Chao Guo, Kangxuan Xu, and Xiaocong Sun. "Research on access rules and flexibility evaluation index system of ancillary service market in China." IOP Conference Series: Earth and Environmental Science 983, no. 1 (February 1, 2022): 012031. http://dx.doi.org/10.1088/1755-1315/983/1/012031.
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Abstract In high renewable energy penetrated power systems, the flexibility of power system resources is indispensable. With the implementation of domestic ancillary service markets, the revenue of ancillary services provided by generating units is gradually changing from the planned mode to the market mode. Moreover, the access threshold for generating units to participate in the ancillary service market has changed. At the same time, the flexibility of generating units has a great impact on the revenue of the ancillary service market. Therefore, this paper summarizes the flexibility requirements of typical pilot areas in China for generating units to participate in ancillary service markets. Then, the corresponding flexibility evaluation indexes of different ancillary services are sorted out and the flexibility evaluation model is developed to evaluate the flexibility ability of power generation enterprises scientifically. The flexibility evaluation system proposed in this paper can effectively evaluate the flexibility capability of generating units and conduct its flexibility enhancement.
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Kyzym, M. O., and Y. I. Kotliarov. "Directions of Activation of Investment Activity of Heat Supplying Enterprises." Business Inform 7, no. 522 (2021): 76–83. http://dx.doi.org/10.32983/2222-4459-2021-7-76-83.
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The article is aimed at developing proposals for the activation of the processes of modernization of fixed assets of municipal heat and power economy. The existing state of investment activity in the field of heat supply is analyzed, «bottlenecks» are identified and proposals for the revival of the processes of modernization of heat supply systems are developed. All enterprises of municipal heat and power economy are characterized by a large level of wear of fixed assets. Low efficiency coefficient of heat-generating equipment and high heat loss during transportation (due to the degeneration of pipelines) is one of the reasons for high tariffs for heat energy with low quality and reliability of heat supply. The only way out of the current situation is the activation of investment activities of communal heat and power enterprises, mass reconstruction and modernization of equipment involved in the production, transportation and supply of heat energy. Analyses of annual reports of heat supply enterprises for 2014-2020 allowed to identify the following shortcomings in the management of investment activities: shortage of investment resources in communal heat and power enterprises; orientation in the implementation of investment activities only towards the use of deductions for depreciation; imperfection of tariff, budget and tax policy in the course of the State support of investment processes. As measures to intensify the investment activity of communal heat and power enterprises, it is proposed the following: revaluation of the cost of fixed assets of municipal heat and power enterprises; establishing the procedure according to which all accrued depreciation is included in the sources of financing of the investment program; granting tax benefits to communal utility enterprises on income tax and land fees (the provision of such tax benefits will not affect the financial condition of the community: reducing income corresponds with a decrease in the cost of providing financial assistance to a communal utility heat supply enterprise); improvement of normative legal acts regulating the issues of substantiation of tariffs for heat energy and investment programs of heat supplying enterprises, as well as control over the implementation.
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Byk, F., and L. Myshkina. "Reliability of distributed energy facilities." Safety and Reliability of Power Industry 14, no. 1 (May 4, 2021): 45–51. http://dx.doi.org/10.24223/1999-5555-2021-14-1-45-51.
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The reason for the appearance of the first distributed generation in Russia was the high requirements to the reliability of power supply to power consumers of a special group of the first category of reliability. Diesel generating units were used to ensure uninterrupted operation. High costs for technological connection of consumers of the 1st and 2nd categories of reliability have strengthened the tendency to install a backup energy source in the enterprises' own power supply systems. However, setting reserves leads to a decrease in economic efficiency. There are additional costs for maintaining the reserve in a working condition. As a result, enterprises transfer the backup units to the mode of the main power source, and that of the backup function to the centralized power supply system. The creation of such industrial MiniGrid operating in a mode without power supply to the grid increases the cost of electricity for other consumers. Besides, with the departure of industrial enterprises from the centralized power supply, the share of communal and non-industrial consumers is growing. This requires an increase in the manoeuvrability of energy sources. The creation of balanced Energy Cells for energy supply to the population and small and medium-sized businesses that provide services to the population is not accompanied by the negative effects indicated above. In Russia, there are isolated examples of such systems, similarly operating in a mode without supplying power to the grid. Changes are needed to allow active consumers to supply excess capacity to the grid during peak hours in the UES of Russia, for which the grid companies need to be allowed to operate at least in a mode without supplying power to the grid, which will not lead to a decrease in grid companies' revenues from electricity transmission services. The introduction of these changes does not only lead not only to an increase in the reliability of power supply but also to an increase in the economic efficiency of the UES, which will reduce the price of electricity.
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Rashitova, I. R., and V. S. Vokhmin. "BIOENERGY COMPLEX OF ORGANIC WASTE TO PRODUCE ELECTRIC AND THERMAL ENERGY." RUSSIAN ELECTRONIC SCIENTIFIC JOURNAL 36, no. 2 (May 11, 2020): 121–29. http://dx.doi.org/10.31563/2308-9644-2020-36-2-121-129.
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The article offers a technological scheme of a bioenergy complex for generating heat and electric energy. The main technical solutions that increase the energy performance of a biogas plant are given. The design of a thermoelectric generator for generating electrical energy and heating the coolant for further technological needs is given. The possibility of using the bioenergy complex for energy supply of agricultural enterprises and individual farms in a closed production cycle, as well as the possibility of using the technological scheme of the bioenergy complex in the absence of a centralized source of electric energy is substantiated. The idea was implemented, which is based on the conversion of heat from exhaust gases into electric current in the developed design of a thermoelectric generator.
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Subhonberdiev, A. S., E. V. Titova, and G. N. Egorova. "Trends and prospects for the development of renewable energy sources in the european union." Proceedings of the Voronezh State University of Engineering Technologies 82, no. 4 (January 20, 2021): 366–70. http://dx.doi.org/10.20914/2310-1202-2020-4-366-370.
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The largest net exporter of traditional energy resources to the EU countries, Russia should take into account the prospects for the development of renewable energy sources in European countries, since inter-fuel competition can lead to a decrease in demand for hydrocarbons from Russia in the energy markets of the European Union. Fuel granules (pellets) are gradually becoming one of the traditional types of fuel for generating heat and electricity, as well as industrial steam in various industries… All plant biomass in this scenario accounts for only 2.8 GW. The highest cost of electricity generation in the EU determines its dependence on subsidies, as opposed to heat production. The examples of the Netherlands and Great Britain are very indicative. In 2010–2012, the Netherlands was one of the first places in the EU for the import of pellets, because at that time there was a subsidy program for the generation of electricity by co-firing biofuel (pellets) with coal – about 5–6 eurocents per 1 kWh. Since 2013, after the closure of the program, the import of pellets has decreased by more than three times. In the UK, on the contrary: in 2010–2012, the annual import of pellets was about 1 million tons, and after the adoption of the subsidy program by 2020, it approached 9 million tons per year. Sales of renewable energy products to small-scale energy enterprises, primarily for generating thermal energy and industrial steam, are stable throughout the year and predictable, in contrast to supplies to large power plants, which are owned by European and international energy concerns, as a rule, owning controlling stakes in pellet production in the USA and Canada. If for the generation of industrial steam at industrial enterprises pellets can be used all year round, sometimes around the clock, then at thermal power facilities they are used depending on weather conditions, primarily temperature.
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Soininen, H., T. Ranta-Korhonen, E. V. Timofeev, and A. V. Erk. "Energy Audit of Agricultural Enterprises: New Approaches and Assessment Criteria (Following the Russian-Finnish Project Interim Outcomes)." Agricultural Machinery and Technologies 14, no. 3 (September 25, 2020): 4–8. http://dx.doi.org/10.22314/2073-7599-2020-14-3-4-8.
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Currently implemented project “Russian-Finnish Bioeconomy Competence Сentre – BioCom” within South-East Finland – Russia Cross-Border Cooperation Programme 2014-2020 aims to integrate the BioEconomy principles and approaches into the agricultural sector of the neighbouring border areas of Russia and Finland. The energy efficiency of farming and sustainable use of energy resources is one of the fundamentals of the bio-economy concept. The energy audit is the first step in identifying opportunities to reduce the energy inputs on the farms.(Research purpose) To discover the new approaches to the energy auditing of agricultural enterprises and new assessment indicators following the project experience.(Materials and methods) Four farms were selected for the energy inspection – two farms located in the Leningrad Region, Russia, and two farms located in the South Savo Region, Finland. In Russia the standard energy auditing, measurement, and calculation procedure was applied. The systems of electrical power supply, heat supply, water supply, sewage, and building envelopes on the farms were examined and estimated.(Results and discussion) Following the outcomes of the energy audits in the project framework and the previous relevant experience, the basic energy-saving and efficiency improvement measures were established. Three new approaches to the energy auditing of agricultural enterprises were suggested – energy and environmental assessment of applied technologies and equipment; consideration of the application of renewable energy-generating sources; consideration of the conversion of vehicles to biogas.(Conclusions) The study outcomes proved the energy audits to play an important role in improving the energy efficiency of agricultural production provided they are mandatory, take into account the energy environmental assessment criteria, consider the application of renewable energy-generating sources and the conversion of vehicles to biogas.
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Huo, Xiao Jiang, Hao Cheng, Yu Hong Wan, Zhong Jing Liu, and Yun Feng Luo. "Risk Decision Analysis on the Electricity Transaction of Power Enterprises in Electricity and Derivative Transactions." Advanced Materials Research 860-863 (December 2013): 2614–21. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.2614.
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In the environment of electricity and derivative transaction, the risk hedging and metastasis of power right transaction in China are needed to establish the risk decision-making for the generated energy/right on electricity generation side. And it will be the key point focused by decision-makers in power enterprises. The planning management of two-stage market transaction risk was conducted with the hedging function of generation rights transaction to establish a risk decision model of comprehensive electricity transaction. The relationship between the electricity price of two-stage market and the identity parameters of transaction participants was given for solving the model. The whole transaction process of generating companies was divided into two stages. The risk decision framework of block transaction was established for the independent transaction decision-making of each segment and the overall optimization. The results of example simulation verified the effectiveness and feasibility of the decisions.
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Balogun, A. A. A., Pi Hefei, and E. S. Zakharova. "Improving the energy efficiency of production processes at industrial enterprises of the Russian Federation." IOP Conference Series: Earth and Environmental Science 979, no. 1 (February 1, 2022): 012114. http://dx.doi.org/10.1088/1755-1315/979/1/012114.
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Abstract The conclusion of the generating equipment for repair, in the optimal way, is the main one when planning repairs. But to consider this issue, it is necessary to understand the essence of the problem and find ways to solve the identified problem. It is necessary to start with the concept of "reliability", namely the reliability of electrical power systems. The article deals with power systems in general, properties of power systems, elements of power systems. The ratio of the functions and properties of energy systems is analyzed, where the main functions of the objects under consideration are: a function associated with the purpose of production equipment, a function associated with the fact of its creation. The meaning of the assignment function is that the object has some task that is performed. In turn, the fulfillment or non-fulfillment of the task is directly related to reliability. Reliability is the property of an object to perform a specified function related to its purpose, subject to specified constraints.
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Baydakova, N. V., A. V. Afonin, D. Sh Norov, and A. A. Smirnov. "Development of algorithm for implementation of technical condition-based repair program for generating equipment at energy enterprises." Safety and Reliability of Power Industry 14, no. 4 (January 27, 2022): 157–64. http://dx.doi.org/10.24223/1999-5555-2021-14-4-157-164.
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The use of modern digital technologies during the industrial revolution enables to revise a number of approaches to the organization of technological processes, in particular when introducing approaches to the implementation of repair programs of energy enterprises. Through the example of the network planning and control system, the use of the overhaul activity schedule for generating equipment is considered, taking into account the logging of asbuilt documentation in a digital system, which is a software and technical complex made up of a centralized data storage system and a decentralized registry. The improvement of equipment, the development of diagnostic tools and methods directly affects the maintenance and repair system. In the maintenance system under development, it is planned to make a transition from statistical empirical assessments of the technical condition of equipment to objective ones based on automated technical diagnostics systems. On the basis of an algorithm for implementing a technical condition-based equipment repair program for energy enterprises, the authors proposed an algorithm for conducting technical supervision and recording the stages of work performed in a distributed register, based on the capabilities of modern digital data collection and processing systems. Obtaining parameter values for further use in the operation of the proposed algorithm is carried out on the basis of the capabilities existing at energy facilities of information-measuring and control systems. The use of the network planning and management system in the form of a network schedule and the algorithm proposed by the authors for conducting technical supervision and recording the stages of work performed during repair activities will make it possible to objectively determine the amount of labor resources necessary to perform the planned scope of work within the specified period, identify critical works delaying the completion of repair, actively manage repair by analyzing the progress of repair work and making reasonable organizational and technical decisions that ensure the performance of work within the planned time frame and at the lowest possible costs.
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BUDAY, Š., Z. FEDERIČOVÁ, and R. VAJCÍKOVÁ. "Diversification of farm business." Agricultural Economics (Zemědělská ekonomika) 55, No. 2 (February 18, 2009): 77–83. http://dx.doi.org/10.17221/583-agricecon.
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One of the measures of the Sectoral Operational Programme Agriculture and Rural Development is focused on the diversification of agricultural activities. The analysis of the measure showed the greatest interest in financial support among the subjects aimed at agritourism and rural tourism. The field of tourism dominates also among the number of the approved projects. The share of other diversification activities is very low. The analysis of other profitable activities in the Farm Structure Census and Farm Structure Survey by the type of activities shows that the total number of agricultural enterprises with other profitable activities decreased in 2005 compared to 2001 and 2003. The total amount of agricultural enterprises with other profitable activities in the Slovak Republic reached 3 219 in 2001, 4 465 in 2003, and 2 066 enterprises in 2005. In 2005, the number of the enterprises increased in the field of craft industry, wood processing, fishery, generating energy from renewable resources and contracted work.
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Balzamov, D. S., I. G. Akhmetova, E. Y. Balzamova, G. I. Oykina, and Gelu COMAN. "An analysis of the viability of implementing steam screw machines at the facilities of energy generation enterprises to reduce the energy costs for their own need." E3S Web of Conferences 124 (2019): 01016. http://dx.doi.org/10.1051/e3sconf/201912401016.
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Reducing the energy consumption for the own needs of energy sources is an urgent task that can be solved by organizing our own energy sources by using the potential energy of water vapor in steam screw machines. The article discusses some options for installing steam screw machines at the facilities of generating companies and identifies factors affecting the return on steam screw machines in the current operating conditions.
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Wei, Zhong Kang, Yan Ling Du, Dun Nan Liu, Yu Jie Xu, and Yuan Zhuo Li. "Research on the Influence of Carbon Trading on Jibei Grid Considering the Co-Ordination of Beijing, Tianjin and Hebei Province." Applied Mechanics and Materials 675-677 (October 2014): 1875–79. http://dx.doi.org/10.4028/www.scientific.net/amm.675-677.1875.
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As the energy and environmental crisis intensifies, controlling total carbon emission in electric power industry has been an important way to achieve the goals of energy conservation and emission reduction. Beijing and Tianjin have lanched carbon trading pilot successively. As a part of the co-ordination, it’s imperative for Jibei to join carbon trading. Controlling the total carbon emission can’t be separated with making carbon initial quota, which will certainly influence generating capacity of generating enterprises in Jibei. Consequently, Jibei grid should purchase more clean electricity in outside province. Firstly, common methods of carbon quota distribution have been introduced in this paper and three scenes of carbon emission reduction have been set. Then, generating capacity in Jibei has been calculated in three scenes, and the influence of purchasing power in outside province on Jibei grid has been analyzed. Result shows that Benchmarking and target constraint are both feasible and allocation scheme can be chosen reasonably based on the actual situation.
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Zhang, Pei Pei, Tian Hua Shan, and Cui Cui Fang. "Research on the U.S. Coal Cupply-Demand Network." Advanced Materials Research 734-737 (August 2013): 1697–701. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.1697.
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The production’s SPL distribution of the U.S. coal supply enterprises from 1983 to 2011 was obtained from the empirical analysis. And the nameplate capacity’s SPL distribution of the U.S. existing electric generating units in 2009 was obtained. Based on a universal bipartite model of the energy supply-demand network, the numerical results of the U.S. coal supply-demand network are obtained, which are in good agreement with the empirical results.
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Afandi, Arif Nur, Aji P. Wibawa, Syaad Patmantara, Goro Fujita, Slamet Hani, and Yunis Sulistyowati. "Economic Assessment of Power Grid Development Using Artificial Bee Colony Algorithm." Periodica Polytechnica Electrical Engineering and Computer Science 66, no. 1 (January 17, 2022): 72–79. http://dx.doi.org/10.3311/ppee.18422.
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The electricity system is generally rapidly developing for covering various power demands with requiring a reliable and safe supply where the substructures are expanding further in generation systems, transmission systems, and distribution systems. However, the system must be run economically to access energy at a cost-effective level related to existing energy enterprises and energy consumption in the load which is represented periodically in the total costs of operations for all operating units. As a basis for its determination, the transmission of economic power within the technical limits applicable is taken into consideration. Environmental factors, on the other hand, are also an impediment to technical limitations. As a result, the operation's economic measure is expressed in the process of providing and selling energy to customers. These works use the Artificial Bees Colony algorithm to determine the scheduling of generating units using the basic principle of optimization to describe its relationship as an economic function. The IEEE-30 bus system is used as a basic model for system development. The analysis' findings show that the weighting factor scheme has an impact on the minimum total cost and that the combination of the electricity distribution process and environmental factors has implications for the operational financial condition and electricity production. The power output, in particular, is proportional to the cost of each generating unit.
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Sun, Zhong Qiang. "Risk Analysis and Safety Evaluation on Combustion System of Gas-Steam Combined Cycle Power Plant." Applied Mechanics and Materials 533 (February 2014): 354–59. http://dx.doi.org/10.4028/www.scientific.net/amm.533.354.
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Under the general policy of the national energy-saving emission reduction and sustainable development, the domestic iron and steel enterprises surge in the by-product gas power generation project. There exist many dangerous and harmful factors in by-product steel gas power generation process and which easily caused casualties and the pollution of the environment. The study on risk analysis and evaluation are still relatively dearth about the by-product gas generating process of domestic steel enterprises. The boiler system on a Combined Cycle Power Plant was analyzed and evaluation by ICI/MOND fire and explosion toxicity index method and the method of fault tree analysis, which combined with the actual situation of steel plant Combined Cycle Power Plant. The results show that the combustion system is more dangerous, and the hazard index levels are reduced to lower level after safety compensatory measures except the unit toxicity index higher. The shielding device or gas alarm failure was the main cause of gas poisoning. According to the analysis some feasible measures was put forward. The study has positive guiding significance for risk management and safety administration decision of the Combined Cycle Power Plant.
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Wibowo, Ardy, Shih-Chih Chen, Uraiporn Wiangin, Yin Ma, and Athapol Ruangkanjanases. "Customer Behavior as an Outcome of Social Media Marketing: The Role of Social Media Marketing Activity and Customer Experience." Sustainability 13, no. 1 (December 28, 2020): 189. http://dx.doi.org/10.3390/su13010189.
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Social media has been playing an important role in marketing strategy. As a part of social media, social networking sites (SNS) can be utilized by enterprises to create direct communication and good relationships with their customers. Therefore, enterprises using SNS have to select the right marketing content to enhance strong customer relationships, which lead to their behavior generating sustainable performance for enterprises. This research considered social media marketing activity (SMMA) and Customer Experience (CX) to measure the customer’s relationship quality, which can impact customer behavioral outcomes, which are purchase intention, loyalty intention, and participation intention. The 413 online questionnaire surveys were measured and analyzed using SmartPLS 3. The results show that SMMA and CX have a significant influence on the customer relationship quality, which also leads to a positive impact on customer behavioral outcomes. This research guides enterprises that SNS’s marketing content has to follow SMMA and CX dimensions to achieve the marketing objective and generate sustainable performance for enterprises.
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Zamaleev, M. M., Yu V. Zhukova, A. V. Abramov, and Yu R. Abaidullina. "Features of using gas turbine units as a source of electricity and heat at mini - thermal power plants." ТЕНДЕНЦИИ РАЗВИТИЯ НАУКИ И ОБРАЗОВАНИЯ 72, no. 7 (April 2021): 89–92. http://dx.doi.org/10.18411/lj-04-2021-288.
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This article discusses the problem of introducing more resource-intensive methods of generating electricity and heat, the main of which is the use of small-sized gas turbine units (GTU). The creation of a Mini-Thermal Power Plant on the basis of the GTU allows solving the problem of the shortage of heat and electric energy in certain regions, ensuring uninterrupted power supply to the housing and communal sector and industrial enterprises. This is due to the possibility of combined production of heat and electric energy, as well as products and services required in the municipal services of the city. This article presents ways to improve the energy efficiency of thermal power plants through the use of GTU.
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Nikitin, A. G., M. E. Shabunov, and P. B. Gerike. "Calculation of capacity of crusher with stops on a roll." Izvestiya. Ferrous Metallurgy 65, no. 2 (March 17, 2022): 145–47. http://dx.doi.org/10.17073/0368-0797-2022-2-145-147.
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All industrial metallurgical enterprises produce and use milled materials obtained by crushing. In the global energy balance, the share of produced energy consumed for crushing is more than 5 %. This paper considers a scheme of the crusher with stops on a roll, the structure of which forms a complex stress state in a crushed piece under onetime action of normal and tangential stresses. It is shown that when generating a complex stress state in a fragmented piece of brittle material, the energy consumption is less by 30 – 40 % than when acting in a piece of linear normal stress. The authors developed a method for determining capacity of the drive electric motor of an energy-saving crusher with stop on a roll at design stage.
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Finogenov, A. I. "Possibilities of Using Frame Structures of Industrial Buildings for Placing Wind Energy Generating Devices." IOP Conference Series: Earth and Environmental Science 988, no. 5 (February 1, 2022): 052006. http://dx.doi.org/10.1088/1755-1315/988/5/052006.
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Abstract The article deals with the highly relevant problem of finding additional sources of energy supply for industrial enterprises using alternative energy-saving energy sources. The author considers the possibility for using the energy potential of surface wind flows with the formation of a wind profile to fit conditions of applications in industrial buildings, as the central idea. The proposed concept is substantiated by the possibility of effective use of outdoor wind generators in construction of the supporting frame of industrial building. The method of integrating wind-driven generators into the structure of a multi-span industrial building is illustrated by the author in the case study of a completed pilot project. The author proposes a solution for a multi-span frame with the formation of a wind-driven transverse profile of the building. A new architectural & constructive solution fundamentally provides a possibility for rational placement of a supporting frame of additional wind-driven power plant with the use of wind turbines in a single integral configuration. Efficient types of turbogenerators were used in the form of built-in multi-row sections configured in the upper zone of the production building, with comprehensive maintenance of the said sections provided. The research results are recommended for wide implementation of such wind generator plants in design and upgrade of industrial buildings for multiple purposes with energy-efficient use of the structural features of their supporting frame. The author has substantiated the prospects for further comprehensive research.
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Malinowska, Ewa. "Using the Concept of the Weighted Ishikawa Diagram for Defining the Impact of Catering Enterprises on the Environment." Equilibrium 5, no. 2 (December 31, 2010): 165–77. http://dx.doi.org/10.12775/equil.2010.033.
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Every organization uses the various resources to achieve its aim. Among them are those that are taken from the environment, for example, energy carriers, or water. As a result of organization’s activity, some pollution is emitted to the water and atmosphere. In Poland at the moment it is seen that there is high growth rate in services in the field of institutional food that is legally obliged by polish law to implement and maintain institutional food safety system (HACCP – Hazard Analysis and Critical Control Points). The organizations that implement HACCP cause as well the environmental loads that have negative impact on environment. Concerning above mentioned issue, the article undertakes a study on the answer of the question, which environmental aspect closely connected with the maintenance of the HACCP system in an institutional food service unit, has the largest impact on the pollution of the environment. The weighted Cause and Effect Ishikawa Diagram is used as a research tool to achieve this target. Its modification that is presented in scientific literature, enables to display next to qualitative information also quantitative one. In accordance with this method “critical paths” are indicated to the most important causes that create given effect. As an effect in this article is defined – generating of environmental loads on the environment by institutional food service unit. While causes are defined as environmental aspects, characterize this organizational part of the unit that is covered by institutional food safety system. One of them is: water consumption, municipal wastes generation, energy carriers consumption: natural gas and electric energy, inorganic waste generation, cleaning supply measures consumption, the consumption of the office materials and exploitation materials to office equipment. The analysis of the quantity of particular factors that create environmental aspects show which environmental aspects have the largest impact on environment and cause its pollution. That are: water consumption, cleaning supply measures consumption and electric energy consumption.
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Abakumenko, Olha Viktorivna, and Pavlo Oleksandrovych Lukyashko. "FINANCIAL RATIO OF NUCLEAR AND HYDROPOWER ENTERPRISES OF UKRAINE." SCIENTIFIC BULLETIN OF POLISSIA 1, no. 2(10) (2017): 159–65. http://dx.doi.org/10.25140/2410-9576-2017-1-2(10)159-165.
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Urgency of the research. The urgency of power sector modernization increased greatly as a consequence of the changes in Ukraine`s energy sector on account of political events of 2013-2015 years. Target setting. Development of proposals for improving Ukraine's energy sector should be based on existing features and problems of its functioning. Actual scientific researches and issues analysis. Pricing issues in the electric power market and are reflected in the works of such scholars as O. Bilotserkivsky, A. Borisenko, A. Voinov, A. Mazurenko, E. Olesevich, S. Saukh, O. Stoyan, K. Uschapovsky, N. Shiryaeva and others. Uninvestigated parts of general matters defining. Scientists pay much attention to the analysis of general-sectoral and general-market indicators of electricity sector, while the micro problems remain largely unnoticed by researchers, although the characteristics and problems of enterprises largely determine the overall industry turmoil. The research objective. The article is focused on the identification of common trends and problems of development of power generating segment of the electricity sector of Ukraine, namely nuclear and hydroelectric power companies. The statement of basic materials. Financial reports of SE "NNEC "Energoatom" and JSC "Ukrhydroenergo" indicate the existence of common features of their activities, despite divergent trends of development. The common features are the high volume of funds of products and the corresponding need for financial resources to restore production capacity. And while the growth of fixed assets of JSC "Ukrhydroenergo" is largely provided by state support through the establishment of sufficiently high prices for the products, the SE "NNEC" Energoatom" is disregarded and gradually loses production potential Conclusions. A common problem in functioning of nuclear and hydropower energetic is finding sources for financing fixed assets, which actually disappear under current conditions. Mechanisms of support of satisfactory condition and dynamics of fixed assets of JSC "Ukrhydroenergo" cannot be extended to the entire energetic sector.
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Byk, F. L., and L. S. Myshkina. "Effects of local intelligent energy systems integration." Power engineering: research, equipment, technology 24, no. 1 (May 23, 2022): 3–15. http://dx.doi.org/10.30724/19989903-2022-24-1-3-15.
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The energy sector of Russia is transforming, followed by total electrification and gasification, which has radically changed the fuel landscape and allowed enterprises in various sectors of the economy to create their energy sources based on gas turbine and gas piston cogeneration plants. There are more and more balanced local intelligent energy systems for various purposes, more often operating autonomously, since the process of their integration with the unified energy system of Russia is impossible without power and energy output, which is contrary to the interests of generating companies, territorial grid organizations and the system operator. Overcoming the administrative and technological barriers and obstacles created by significant players in the electric power industry reduces the technical and economic efficiency of local intelligent energy systems that can bring considerable beneficial systemic effects.THE PURPOSE Substantiation of the obtained system effects from integrating local intelligent energy systems.METHODS. A systematic approach to identify the effects of the integration of local intelligent energy systems with the unified energy system of Russia.RESULTS. Local intelligent energy systems are considered objects of distributed electric power industry that perform certain system functions, which is accompanied by a change in the properties of reliability, efficiency and environmental friendliness of the production and transmission of heat and electricity, which leads to various effects. The presence and size of the effects are determined by the type and type of the local intelligent energy system. It is shown that the integration of communal local intelligent energy systems, created for the energy supply of the population and equivalent consumers, has a certain advantage.CONCLUSION. The integration of communal local intelligent energy systems makes it possible to increase the availability and uninterrupted power supply, reduce the negative impact of off-market surcharges and cross-subsidization, improve the uniformity of load schedules for generating and grid equipment, which increases the efficiency of the unified energy system of Russia.
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Huang, Youxing, Yan Zhang, Li Lin, and Guanghua Wan. "Foreign direct investment and cleaner production choice: Evidence from Chinese coal-fired power generating enterprises." Journal of Cleaner Production 212 (March 2019): 766–78. http://dx.doi.org/10.1016/j.jclepro.2018.11.211.
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Valiev, R. N., E. V. Izmaylova, E. Sh Kharisov, M. R. Rotach, and A. V. Busarov. "Management of technical condition of heat and power facilities based on a risk-oriented approach." E3S Web of Conferences 124 (2019): 05058. http://dx.doi.org/10.1051/e3sconf/201912405058.
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Ensuring the uninterrupted production of electric and thermal energy is a priority in the generating equipment operation. Nowadays the management of the equipment state at most of Russia’s energy enterprises is based on a system of scheduled preventive maintenance. This system does not allow taking into account the economic component of technological impacts, which, in turn, leads either to “under maintenance” or to “over-servicing” of equipment. All energy companies are faced with the task of optimizing equipment costs, while ensuring the required level of reliability. To solve this problem, production asset management systems are used. The main task of managing production assets is to ensure a balance between equipment costs and the risks of its failure. The result of the implementation of asset management systems is the formation of balanced plans for repairs, replacements, upgrades and maintenance of equipment.
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Ingaldi, Manuela, and Robert Ulewicz. "Problems with the Implementation of Industry 4.0 in Enterprises from the SME Sector." Sustainability 12, no. 1 (December 26, 2019): 217. http://dx.doi.org/10.3390/su12010217.
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Industry is currently undergoing a revolution (called Revolution 4.0) related to the far-reaching integration of all production areas through the digitization and the creation of new communication channels. The Polish economy generated a GDP of USD 524.5 billion in 2017, of which small and medium enterprises generated about 50% of revenue and in which microenterprises accounted for the largest share in generating GDP; i.e., around 30.2%. The aim of the research is to determine the adaptation possibilities of the small and medium-sized enterprises (SME) sector to Industry 4.0 solutions. Pilot research was carried out in the Czestochowa Industrial District. Enterprises from the SME sector were asked to provide an information about the used technologies and to determine the level of their organization’s readiness for sustainable development through technological transformation. Financial resources as well as a lack of specialized support in obtaining new technologies were defined as problems as far as transformation is concerned. The solution of the diagnosed problem is the development of a platform aimed at integrating the potential of enterprises from the SME sector in order to undertake joint actions for sustainable development.
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Neessen, Petra C. M., Cosmina L. Voinea, and Els Dobber. "Business Models of Social Enterprises: Insight into Key Components and Value Creation." Sustainability 13, no. 22 (November 18, 2021): 12750. http://dx.doi.org/10.3390/su132212750.
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The increasing pressure on people to do something for society, in combination with the need for financial turnover in order to survive, is seen as one of the dominant factors for the rise of social enterprises. However, there is still debate on how social enterprises create social value in addition to economic value and how this is reflected in the business model. In this case study research, we investigate how the key components of the business model of social enterprises contribute to the creation of social and economic value. The cases in this research create social and economic value through the mutually interacting operation of key components and their sub-components. This interacting effect focuses on the one hand on the alignment of the internal architecture, market and financial management with the mission. The mission statement serves as a guiding principle. Furthermore, realizing the highest possible profit is not a goal in itself for social entrepreneurs. Generating profit serves the continuity of the company and the realization of social value. We also found that social enterprises can be configured as either market hybrids, blending hybrids, bridging hybrids or coupling hybrids.
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Vourdoubas, John. "Creation of Zero CO2 Emission Plants Due to Energy Use: A Case Study in Crete, Greece." Studies in Engineering and Technology 5, no. 1 (January 28, 2018): 55. http://dx.doi.org/10.11114/set.v5i1.2961.
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Creation of zero CO2 emission enterprises due to energy use in Crete, Greece has been examined with reference to an orange juice producing plant (Viochym). Energy intensity at Viochym has been estimated at 1.66 KWh per € of annual sales. Oil used for heat generation has been replaced with solid biomass produced locally in Crete and resulting in zero CO2 emissions due to the use of heat. Offsetting CO2 emissions due to grid electricity use has been proposed with two options. The first includes the installation of a solar photovoltaic system with nominal power of 417 KWp, according to net metering regulations, generating annually 625 MWh equal to annual grid electricity consumption in the plant. Its capital cost has been estimated at 0.5 mil € which corresponds to 1.07 € per kg of CO2 saved annually.The second option includes the creation of a tree plantation in an area of 107 hectare resulting in carbon sequestration equal to carbon emissions in the plant due to electricity use. Both options for offsetting CO2 emissions in Viochym have various advantages and drawbacks and they are considered realistic and feasible, resulting in the elimination of its carbon emissions due to energy use. Improvement of the energy intensity of various processes in Viochym could result in lower CO2 emissions and smaller sizing of the required renewable energy systems for eliminating them.
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Zhang, Gangfeng, Bo Fei, and Guangli Xiu. "Characteristics of Volatile Organic Compound Leaks from Equipment Components: A Study of the Pharmaceutical Industry in China." Sustainability 13, no. 11 (June 2, 2021): 6274. http://dx.doi.org/10.3390/su13116274.
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Leak detection and repair (LDAR) plays an important role in controlling the fugitive emission of volatile organic compound (VOC) from chemical enterprises. At present, many policies and standards issued in China have set clear requirements for implementing LDAR in the pharmaceutical industry. In this study, the LDAR work of nine typical pharmaceutical enterprises was selected for analysis to allow investigation of the characteristics of VOC emissions from leaking equipment components. Some suggestions for controlling VOC are proposed to provide a reference for managing the fugitive emissions of VOC from pharmaceutical enterprises. The results showed that the number of equipment components used by the pharmaceutical enterprises ranged from several thousand to more than 20,000, which is lower than that in oil refining and coal chemical enterprises. The predominant leaky component was the flange, which accounted for 56.31% of the total, followed by connectors (21.51%) and valves (18.53%). Light liquid medium components accounted for the largest proportion of equipment (52.83%) on average, followed by gas medium components (45.52%, on average). Heavy liquid medium components, which are rarely used in pharmaceuticals, accounted for only 1.65%. The average leak ratio of the components in the pharmaceutical industry was approximately 0.99%. The leak ratio of the open-ended line was much higher than that of other types of components, reaching an average of 5.00%, while that value was only 0.92% for the flange, despite the numbers and proportion of them that were in use. The total annual VOC leakage from the nine pharmaceutical enterprises studied in this work was 20.11 tons, with an average of 2.23 tons per enterprise and an average of 0.22 kg/a per equipment component. Flanges, connectors, and valves were the top three contributors to leakage, generating 39.17%, 38.72%, and 16.79% of the total, respectively, and a total proportion of 94.68%. Although the number of pumps accounted for only 0.15% of the components, it generated 1.94% of the leakage. In terms of different production processes, the greatest unit product leakage came from the bulk production of chemicals used for pharmaceuticals, reaching 0.085 t/a. The production from traditional Chinese medicine enterprises was the lowest (0.011 t/a), which was only 12.80% of the leakage from the bulk production of chemicals for drugs. The leakage of VOC from the equipment components in the nine enterprises was reduced, to varying degrees, using LDAR. The overall reduction ratio was between 23.55% and 67.72%, with an average of 44.02%. The reduction in leakage was relatively significant after the implementation of LDAR; however, there is still room for improvement. Pharmaceutical enterprises should improve their implementation of LDAR and reduce VOC leakage by reducing the number of inaccessible components used and increasing the repair ratio of leaky components. Controlling the source of component leakage, which should be emphasized, can be realized by cutting down the number of components used, adopting low-leakage equipment, and putting anti-leakage measures in place.
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Ziganshin, M. G. "Method of assessment generation efficiency at thermal power plants taking into account emissions of pollutants." Power engineering: research, equipment, technology 21, no. 6 (April 21, 2020): 29–38. http://dx.doi.org/10.30724/1998-9903-2019-21-6-29-38.
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The article notes the risks to the growth of energy potential in connection with the recent adoption by the Government of the Russian Federation of the Paris Climate Agreement. According to the latest UN data, the concentration of greenhouse gases in the atmosphere continues to increase. Consequently, Russia will be required to bring the reduction of CO2 emissions to 33- 40%, which will entail a decrease in the production, including energy generation, at the base of fossil fuels. At the same time, in the decisions of the Paris Agreement there are no specific tools to control the “low-carbon” production. This can lead to biased decision-making on the problems of “low-carbon” production both at the global and national levels. A rating system is proposed that provides weighted average numerical indicators of the efficiency of generating enterprises in the release of toxic ingredients and greenhouse gases, taking into account energy costs for restoring the air area around the source of emission. The rating assessment methodology was validated for the category of sources “stationary fuel combustion” during power generation. The results of calculations by the proposed method, obtained taking into account the actual load of the facilities, showed the physical adequacy and objectivity of the assessment of energy generation at thermal plants for various purposes for the emission of multidirectional pollutants. The presented rating characteristics can be used on a global and / or national scale, as well as for internal purposes of organizations, for example, when comparing their objects in order to indicate bottlenecks in real production conditions.
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Pollak, Artur, Agata Hilarowicz, Maciej Walczak, and Damian Gąsiorek. "A Framework of Action for Implementation of Industry 4.0. an Empirically Based Research." Sustainability 12, no. 14 (July 18, 2020): 5789. http://dx.doi.org/10.3390/su12145789.
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Background: In the face of changes taking place as a result of the increasing digitization, automation, and robotization of life and the economy, questions regarding the essence of the functioning of modern enterprises and about the emerging new pattern of operation seem to be more and more relevant. Aim of the article: The article focuses on the issues connected with implementation of Industry 4.0 in enterprises, the difficulties involved, and the limitations and challenges that management is facing in the process. Materials and Method: The advantage of the study is its empirical nature. The participants were 39 Industry 4.0 experts from various Polish companies that have participated. At the same time, the aim has been to synthesize theory and practice and to draw attention to potential changes in the area of improvement of the economic results of enterprises that may result from Industry 4.0. Results: The research identified limitations and challenges enterprises may face in connection with the implementation and subsequent stages of development of Industry 4.0 from the practical point of view. Conclusions: Industry 4.0 is an innovative approach to generating a new quality of production. It requires, however, careful and thorough observation of the process already at the preparation stage.
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Kirichenko, A. S., and E. V. Kirichenko. "Algorithm for assessing the efficiency of siting solar power plants at the enterprises of the agro-industrial complex of Krasnodar region." IOP Conference Series: Earth and Environmental Science 845, no. 1 (November 1, 2021): 012157. http://dx.doi.org/10.1088/1755-1315/845/1/012157.
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Abstract The features of agricultural energy in the Krasnodar Territory are considered and two main problems are identified: the shortage of generating capacities and the remoteness of low-power consumers from centralized networks, for the solution of which renewable energy sources, including solar energy, can be used. The use of solar power plants at the enterprises of the agro-industrial complex of the region has been substantiated. The importance of automating the process of assessing the territory suitable for the placement of solar power facilities and the features of its implementation are substantiated. Criteria have been obtained that influence the choice of the optimal option for placing solar power facilities, based on the methodology for calculating the power and the amount of generated energy. The features of calculating the matrix of spatial characteristics for renewable energy facilities in the Krasnodar Territory are shown. An algorithm for creating a matrix of spatial data and an algorithm for choosing the optimal option for placing solar power plants are presented. The use of a high-level programming language Python is proposed to implement the created algorithm. The conclusion is made about the possibility of automating the process of assessing the efficiency of the placement of solar power plants in the Krasnodar Territory using modern computing technology in the format of a geoformation application developed in the Python programming language.
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Zaika, S. V., D. A. Uglanov, E. A. Shatokhin, S. S. Zaika, and A. A. Shimanov. "Increasing the Energy Efficiency of the Power Supply System on Liquefied Natural Gas through the Use of a Combined Cycle Gas Turbine Plant." MATEC Web of Conferences 179 (2018): 01016. http://dx.doi.org/10.1051/matecconf/201817901016.
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The use of LNG for the production of additional energy is topical today. Very often LNG is used for gasification of settlements and industrial enterprises. LNG makes it possible to gasify objects remote from main pipelines for long distances by creating an LNG reserve directly from the consumer, avoiding the construction of expensive piping systems. However, in this case, there are large losses of cryoproduct and its low-potential heat. In this article, we propose a technical solution for compensating for the loss of cryoproducts during storage using an installation consisting of two circuits, one of which is a loss compensation loop and the other is a circuit for generating additional energy. The conducted researches showed that the use of this system allowed to return the previously used for liquefying electric power in the amount of 24%.
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Papaika, Yu A., O. G. Lysenko, A. V. Bublikov, and I. G. Olishevskiy. "Problems of electromagnetic compatibility of powerful energy associations during mass connection of renewable energy sources." Electrical Engineering and Power Engineering, no. 1 (March 31, 2021): 34–45. http://dx.doi.org/10.15588/1607-6761-2021-1-4.
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Purpose. Analysis of the problem of energy efficiency and electromagnetic compatibility of powerful energy associations with nonlinear loads and renewable energy sources. Finding promising ways to increase energy efficiency of power supply systems. Methodology. Mathematical modeling of electromagnetic compatibility. Findings. The analysis of the problem of energy efficiency and electromagnetic compatibility of powerful energy associations with nonlinear loads and renewable energy sources allows us to formulate the following provisions that determine the objectives of this study. A promising way to increase the energy efficiency of power supply systems is the introduction of refined methods of analysis and forecasting of electrical modes of industrial enterprises, as well as indicators of voltage quality and reliability of electrical equipment. Originality. Although the problem of electromagnetic compatibility has been the subject of numerous domestic and foreign studies, it should be noted that most of these works consider the processes of generating electromagnetic interference in the electrical network without reference to the technological schedules of electrical equipment. Practical value. One of the electromagnetic effects, which is manifested in the operation of frequency converters, are significant levels of interharmonics and higher harmonics, which are generated in the electrical network and contribute to the growth of electricity losses and reduce the service life of electrical equipment. However, the regularities connecting the parameters of the power system and the modes of powerful industrial converters have not been studied, and the substantiation of the parameters of a rational energy efficient mode of the power supply system, taking into account individual graphs of higher harmonics, has not been carried out until today.
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Babkina, L. N., О. V. Skotarenko, Yu A. Nikitin, and S. V. Bespalova. "PROBLEMS OF DEVELOPMENT OF THE ENERGY INDUSTRY IN THE ARCTIC TERRITORIES." Economics Profession Business, no. 4 (December 10, 2021): 5–13. http://dx.doi.org/10.14258/epb202149.
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The electric power industry is a branch of energy that includes the production, transmission and subsequent sale of electricity. Generating companies do not sell electricity directly to the population, but produce electricity and supply it to the wholesale market, where it is bought by sales companies, guaranteeing suppliers, independent energy marketing companies and large industrial consumers. Based on the results of a comparative analysis of the financial activities of energy marketing enterprises of the Russian Federation, problems are identified, imbalances and strategic plans for their development are determined. The results showed that the development of the energy industry as a whole depends on the financial activities of guaranteeing electricity suppliers. Unlike an independent power supply company, the activity of guaranteeing suppliers is less profitable and low-profitable, and the financial condition, in turn, is characterized by low solvency and financial stability. The authors have identified the weaknesses and strengths of this development. It is noted that the weakest side is the violation of the repayment terms of funds in settlements by electricity consumers, which leads to the formation of a negative financial result. The identified problems of financial development allow production us to form direction.
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Umar, Bridget Bwalya, and Chibuye Florence Kunda-Wamuwi. "Socio-Economic Effects of Load Shedding on Poor Urban Households and Small Business Enterprises in Lusaka, Zambia." Energy and Environment Research 9, no. 2 (August 5, 2019): 20. http://dx.doi.org/10.5539/eer.v9n2p20.
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Zambia has in the recent past witnessed an increase in economic activities which has led to an increased energy demand. This increased demand for energy has overshot the hydroelectric power generating capacity. Consequently, the national power utility company, the Zambia Electricity Supply Corporation (ZESCO) instituted nationwide load shedding schedules that last up to 12 hours daily. This development has potentially far reaching social and economic effects on the lives and operations of poor urban residents and small scale business enterprises (SMEs) that routinely depend on stable access to electricity. With a focus on two low income residential areas, namely Ng’ombe and Kalingalinga residential areas, this study explored how residents and SMEs of the capital city, Lusaka have been affected by the recent spate of load shedding in the city. A total of 200 households and 14 SMEs from Ng’ombe and Kalingalinga were interviewed. Results show that load shedding, which occurs daily in the two study sites has caused massive disruptions to the daily lives and operations of the households and small businesses respectively. Over time, the load shedding phenomena has gotten worse and become a major political issue, reflecting the hardships for households and businesses in Zambia. On this basis, this study recommends that the government provides subsidies on alternative energy appliances such as portable diesel solar generators for small business enterprises and more favourable electric tariff rates for business that shift their manufacturing activities to night time so as to reduce demand for electricity during peak periods.
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SHUYUSHBAYEVA, Nurgul N., Shynar Zh SAGIMBAEVA, Elmira K. MUSSENOVA, Karlygash B. BIZHANOVA, and Nurgul N. ZHANTURINA. "REDUCTION OF DEFECTIVE CONDITIONS OF THE WIND POWER PLANT OPERATION AT RESERVING THE OPERATION MODES OF ALTERNATIVE ENERGY." Periódico Tchê Química 17, no. 34 (March 20, 2020): 976–97. http://dx.doi.org/10.52571/ptq.v17.n34.2020.997_p34_pgs_976_997.pdf.
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The current pace of the global economy requires a significant increase in energy production. At the same time, the reserves of traditional natural fuels, such as natural gas and oil, are gradually being depleted. Therefore, conventional energy is being replaced by an alternative. Developing the operation technology of the devices that ensure the functioning of alternative energy enterprises is based on the fact that the reliability of such devices should be at the level of traditional power plants. Each device must be not only fault-tolerant but also easy to maintain. It is often considered to be portable and self-contained devices capable of generating energy without excessive maintenance of the equipment by the technical service. The article aimed to solve the problem of using wind energy in a remote area. The leading research method was graph theory analysis. The novelty of the research is determined by the fact that it offers the formation of a model that will meet the standards of functioning at the level of the most significant industrial models used in alternative energy as one of the objects of pure energy production. A wind power generation plant is used as a similar facility. It was revealed that this issue should be considered only provided that such a facility will produce energy in an amount of not less than a similar sample of a traditional energy source in consumption by both industrial and standard consumers. The practical significance of the study is determined by the fact that each of the designed types of facilities can operate in almost any conditions and have high fault tolerance.
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Burchard-Dziubińska, Małgorzata. "Influence of the Climate Policy of the European Union on the Competitiveness of Pollution-generating Sectors of the Polish Economy in the Context of Sustainable Development." Comparative Economic Research. Central and Eastern Europe 14, no. 4 (May 11, 2012): 81–96. http://dx.doi.org/10.2478/v10103-011-0028-9.
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The text analyses the influence of the EU climate policy on the competitiveness pollution-generating of sectors of the Polish economy. Study of literature and the results of the questionnaire survey, carried out in 2008 in enterprises located in Poland and representing the steel, glass, aluminium and cement industries became a basis for formulating conclusions concerning the consequences of the climate policy already implemented and planned after 2012. The EU climate policy, particularly the common system of emission allowances trade, makes the enterprises face new developmental barriers. The expected increase in production costs will not only slow down the production dynamics, but may also entail lowering the competitiveness of Polish companies compared to companies from outside the EU, to which the greenhouse gasses emission limits do not apply. Adverse consequences for employment and for regional development should also be considered indisputable. If that was accompanied by an emission leakage outside the EU, achieving the global purposes of the climate policy would also become questionable. The businesses surveyed represent industries which are pollution generators by their nature and even ecologically-oriented technological progress is incapable of ensuring considerable emission reductions without general switching of the economy to renewable energy sources.
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Hussain, Zahid, Jyoti Mishra, and Emanuela Vanacore. "Waste to energy and circular economy: the case of anaerobic digestion." Journal of Enterprise Information Management 33, no. 4 (June 18, 2020): 817–38. http://dx.doi.org/10.1108/jeim-02-2019-0049.
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PurposeThis paper highlights how biological waste materials can be used for generating the much needed energy and obtaining nutrient-rich compost for agriculture through anaerobic digestion (AD). The paper further highlights the importance of small and medium enterprises (SMEs) in using AD for converting waste to energy (WTE), leading to many environmental benefits as well as clean energy generation. It would help to reduce pollution, water acidification and carbon emissions that eventually lead to climate change.Design/methodology/approachThe researchers undertook an in-depth study to highlight the role played by an SME in converting WTE and helping towards achieving circularity. An exploratory case-based approach was used to understand value leakage for an AD plant operating on WTE principles in the UK. The plant is still currently active, and it is located in the Midlands, England. Fifteen semi-structured interviews were undertaken with different stakeholders.FindingsThis paper reveals the importance of WTE and the significant role played by AD in converting food waste into useful matter. It reports further into the value leakage issue faced in the AD plants. It demonstrates the importance of technological innovation in SME to capture value leakages in a circular model. Most importantly, it demonstrates how SMEs gain competitive advantage and generate value proposition, while they aim for zero waste to landfill objective.Research limitations/implicationsThe research involves a case study based on an SME, operating on a circular business model. It will be worth investigating how other businesses could gain competitive advantage. For SMEs interested in AD for WTE, this paper introduces further technological innovation to the AD process to leverage further potential for reuse of waste liquid. Any SMEs entering WTE market ought to take into consideration such design implications.Practical implicationsThe paper reveals how the use of waste by SMEs would lead to many environmental benefits as well as clean energy generation. It would help to reduce pollution, water acidification and carbon emissions that eventually lead to climate change. It is useful for addressing the needs of waste food producers and is a cheap raw material for generating energy. The benefits to the public are that it reduces the need for landfill and increases recycling.Social implicationsThe WTE is an effective way of making use of last-stage waste.Originality/valueDespite SMEs being the powerhouse of the European economies, there is limited research investigating how circular economy (CE) could unlock their potential. Moreover, development of AD in the UK has lagged behind other EU countries. We highlight value leakages and argue how technological innovation should be used to close the value chain loop in the WTE production process. This paper, therefore, demonstrates the important role of an AD process, which involves decomposition of biodegradable materials. It shows that AD is an economically viable and environmentally friendly process of obtaining clean energy at low cost.
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Garbelli, Maria, and Manuel Gabriele. "Reshaping the Role of Destination Management Organizations: Heritage Promotion through Virtual Enterprises—Case Study: Bresciatourism." Sustainability 13, no. 8 (April 16, 2021): 4471. http://dx.doi.org/10.3390/su13084471.
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Cooperation in tourism is considered crucial for sustainable destination promotion, addressing several opportunities to decrease the level of competition among actors to achieve advantages for all. Global markets force rapid, virtual teaming up and high reconfigurability through heavy reliance on information and communications technology in the pursuit of specific market opportunities for a destination’s heritage promotion. In light of a reshaped destination management organization role, this work focuses on temporary cooperation and adapts the dynamic virtual enterprise model to tourism. A case history in Brescia was examined to support the theoretical construct. The resulting conceptual schema highlights the main features of a virtual enterprise in tourism (VEt), the life cycle stages—qualified by dynamic adaptation—and the leadership role of the destination management organizations. In generating a VEt model, four conditions for effectiveness emerge.
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Edriss, A. K., and A. W. Mehare. "Impact of Farm and Non-Farm Micro-Enterprise Diversifications on Household Dietary Diversity in Malawi." European Journal of Development Studies 1, no. 2 (June 17, 2021): 7–16. http://dx.doi.org/10.24018/ejdevelop.2021.1.2.16.
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Micro-enterprising is crucial for improving rural households’ food and nutrition status in subsistence agrarian economy like Malawi. There are no studies that have concurrently analyzed the roles of farm and non-farm micro-enterprise diversity on household dietary diversity (proxy measure of household food access) in Malawi. With the following objectives, the study jointly (1) analyzed the effects of farm and non-farm micro-enterprises diversifications on rural household food access, and (2) analyzed relevant socio-economic and institutional factors on household dietary diversity in selected districts of Malawi.
Data were collected from 1827 households; whereby 779 households were engaged in some kind of farm and non-farm micro-enterprises in six districts with high concentration of micro-businesses and population densities. Both parametric and parametric descriptive statistics, Poisson and Negative Binomial regressions were used for estimations. Of all the factors associated with household dietary diversity, farm and non-farm enterprise diversity, as well as expenditure on food items had played major roles in influencing household dietary diversity. Increasing farm and non-farm micro-enterprise diversity by one micro-business group is associated with the possibility of consuming or having access to all 12 groups of food by the households. Holding other things constant, it is surprisingly found that nutrition education (34.2%, ρ=0.000<0.001) influenced household food dietary diversity more than household heads with formal education (average 5 years of schooling); suggesting that nutrition education, if directly delivered to the household heads regardless of their formal education level, is one of the major factors that can positively and significantly affect household dietary diversity in Malawi.
These results also resonate to the Government of Malawi’s overarching policy goal of furthering income-generating social and economic activities in order to become less reliant on hand-outs and donors at large. Besides increasing only starchy staple food or monotonous cereal-based diet through various agricultural subsidy programmes, such micro-enterprising programs are also needed to enhance by targeting energy and nutritious food supply that are essential if the country is aiming to expand its industry and service sector with healthy population.
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Melnyk, L. Hr, O. I. Matsenko, and V. S. Tereshchenko. "Scientific Substantiation of Increase of Technical and Economic Efficiency of Use of Solar Energy." Mechanism of an Economic Regulation, no. 2 (2020): 121–30. http://dx.doi.org/10.21272/mer.2020.88.10.
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The article is devoted to finding ways to improve the efficiency of using solar panels. In the mainstream of increasing the economic efficiency of solar stations' operation, methods of reducing the cost of generating electricity based on solar energy are considered. The purpose of the article is to study ways of more efficient use of solar energy and compare the types of installation of photovoltaic converters. The study's main focus is on solar tracking systems, which give the best price/efficiency ratio for solar stations. In particular, the economic feasibility of using a biaxial tracking system for solar panels has been investigated. The advantages and disadvantages of this approach are considered. The energy potential of solar radiation under terrestrial conditions is analyzed. A table of dependences of the angle of motion of the Sun in time for one light day for the conditions of the Sumy region was built. The maximum value of the intensity of solar radiation per year per 1 m2 is calculated. The graph of the average monthly electricity production was built. In the course of the work, an experiment was set up, within the framework of which four options for photoelectric converters' placement were calculated: with automatic guidance to the Sun; inclined type; vertical type; with a fixed angle. It has been established that for the city of Sumy a two-axis orientation system is most effective. According to the results of processing the experimental data, the system with the tracker provides almost 24% more power generation than the stationary installation option (fixed angle) of the photoelectric converter module. Energy organizations and enterprises can use the study results, authorities and other stakeholders in the field of alternative energy.
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Osorio-Novela, Germán, Alejandro Mungaray-Lagarda, and Natanael Ramírez-Angulo. "Social Enterprise in Mexico, a New Business Classification." Sustainability 13, no. 16 (August 18, 2021): 9264. http://dx.doi.org/10.3390/su13169264.
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Social Enterprise (SE) is an increasingly important sector for generating employment and distributing wealth in market structures. The social business type two (SB2)—a very specific type of SE—is a category that has challenged orthodox theoretical elements in its main assumptions and behavior in the markets. SB2 is mainly classified within the category of microenterprises because they have a very small number of employees. A new official business classification is important to differentiate enterprises not only by size, but also by type of behavior. There is a new indicator that compares the profit levels of microenterprises with the poverty line as a representative tool to classify Mexican microenterprises into profit seekers and SB2. When these outcomes are contrasted with a discrete choice model under the logistic functional form, the probabilities that this indicator classifies a microenterprise with entrepreneurship by necessity, installed capacity maximization and no profit seeking as SB2 is 80% for microenterprises up to ten workers, and goes up to 92% for microenterprises with one person. With such a new classification, better policies could be promoted to support SB2, and help address both the lack of opportunities from the market economy and poverty menace.
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Rumyantseva, E. E. "The Russian industry: the problems and the further development." Economy in the industry 11, no. 2 (September 1, 2018): 151–58. http://dx.doi.org/10.17073/2072-1633-2018-2-151-158.
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This article describes the various approaches to the analysis of the current situation and the justification of the further development prospects of the Russian industry represented at the round table on June 21,2018 inthe State Duma of Federal Assembly of the Russian Federation on a subject: «Legislative providing industrial policy of the Russian Federation: technologies, innovations, investments». Attention had also been drawn to issues requiring the globalization, the industrial development inequality of the countries of the world and the Russian regions, the dependences of economic growth on the state of the knowledge economy, the industrial and monetary and credit policy interrelations, the changes in the system of the state regulation of the Russian industry, the business moods, the technological updating results of the industrial enterprises, the features of the investment projects financing in Russia and in industrialized countries, the prospects of the introduction in Russia of the digital technologies of the industrial production management. Among offers of the situation significant improvement there are: the providing for the economic relations participants of the equal competitive opportunities; the completion of the Federal law «About Industrial Policy in the Russian Federation», the involvement in the economy of free money, the updating on the basis of the problems settlement with the financing of the enterprises of the fixed assets, the selective development of the import substitution, the distribution of the positive experience of the successful industrial companies. The author points to a need of the involvement in the discussion and the other important questions concerning the comprehensive analysis of the reasons of the serious lag of the Russian enterprises from the enterprises of the industrialized countries generating the negative consequences; the labor productivity at the industrial enterprises of the different countries of the world and factors of its growth; the influences of the developed bureaucracy, the administrative barriers, the corruption on a situation in the various industries, the applications of the concept of the economical production, the energy productivity and a resource conservation, etc.