A model for detailed evaluation of fossil-energy saving by utilizing unused but possible energy-sources on a city scale

2007 ◽  
Vol 84 (9) ◽  
pp. 921-935 ◽  
Author(s):  
Yasuhumi Mori ◽  
Yukihiro Kikegawa ◽  
Hiroyuki Uchida
2021 ◽  
pp. 87-97
Author(s):  
Mykola Parkhomets ◽  
Vasyl Hradovyi

Purpose. The aim of the article is in-depth study of questions related to the features, methodological approaches and indicators of economic analysis and evaluation of the energy saving system in agricultural enterprises. Methodology of research. The methodological basis of the study is the dialectical method of scientific knowledge. The study used general and special methods, including abstract and logical (to outline the main factors, influencing the characteristics of energy saving in agricultural enterprises, for the author’s interpretation of the energy saving system in agricultural enterprises), deductive (to analyse the dynamics and areas of economic efficiency level increase of energy saving system); generalization (in the study of the possibility of implementing the latest technologies aimed to improve the energy saving system in agricultural enterprises). Findings. It is established that agricultural industries have a number of features, in particular: use energy for production, generate it. This feature is based on the fact that in the production process there are three fundamentally different types of energy: anthropotechnogenic (fossil); solar and soil energy. It was found that the process of energy conservation in agriculture should be formed by reducing fossil energy sources and by making fuller use of renewable solar energy and soil energy potential. An important feature of agriculture has been identified, which lies in its significant level of spatial dispersion, which causes significant costs for transport services of production processes and logistics. There is a significant difference in the principles of energy consumption, fossil energy is the main in industry and in agriculture - it plays a supporting role. There, natural energy forms the biological mass (harvest, live mass of animals). The author’s interpretation of the concept “energy saving of agricultural enterprises” is offered, which includes a system of measures (organizational, economic, technical and technological, ecological, legal and operational), coordinated action of which should be aimed at the rational use of energy in the process of agricultural production. The indicators of the group of economic analysis of energy saving in agriculture are determined: total energy capacity; energy armament; energy supply; electrical equipment of labour, etc. The key stages of energy saving research and tasks in agricultural enterprises are clarified. Grouping of methods of research of energy saving is offered. Originality. The author’s interpretation of the concept of “energy saving of agricultural enterprises”, definition of key stages of energy saving research and systematization of appropriate methods were further developed. Practical value. The introduction of research results into production will help increase the economic efficiency of agricultural production. Key words: energy saving, energy efficiency, energy resources, renewable energy sources, rational use of energy resources.


2021 ◽  
Vol 1 (516) ◽  
pp. 65-76
Author(s):  
O. V. Klymchuk ◽  
◽  
S. V. Kozlovskyi ◽  
R. V. Lavrov ◽  
◽  
...  

The article is aimed at developing strategic directions and introducing regulatory measures for the formation of Ukraine’s energy policy on the principles of energy saving and the development of renewable energy industry. On the basis of scientific works, the main organizational-economic vectors of energy industry sector development are systematized, which are associated with the formation of a favorable socio-political climate regarding the priority of using renewable energy sources in the fuel and energy complex; development of effective methods of both the State-based and the market-based regulation by the world community; coordination of the strategy of sustainable development of the world economy. It is determined that the energy saving policy should be based on a flexible combination of the State-based regulation and the market environment for the formation of the most acceptable stimulation mechanisms in the specific economic and political situations, which allows for the greatest economic benefit. It has been found out that the implementation of energy saving processes is impossible without the mass use of renewable energy carriers, which are a universal resource for processing to the right types of energy, are marked by energy independence related to obtaining economic benefits and contribute to the creation of an ecological friendly environment. In the perspective, the energy saving processes, the transition of the national economy to wide implementation in the production of high-tech technologies and the use of renewable energy sources should become the determining factors of Ukraine’s energy strategy.


2009 ◽  
Vol 13 (1) ◽  
pp. 185-193 ◽  
Author(s):  
Dusan Gordic ◽  
Milun Babic ◽  
Dubravka Jelic ◽  
Davor Koncalovic ◽  
Nebojsa Jovicic ◽  
...  

This paper deals with energy audit procedure implemented on only Serbian car manufacturer 'Zastava Automobili'. Based on the results of energy auditing and performed technological and economical feasibility studies several energy saving measures were proposed. The measures are related to different energy sources: steam, hot water, compressed air, electricity, and water. Such energy efficiency programs reduce energy costs and increase production profitability of the factory.


2020 ◽  
Vol 197 ◽  
pp. 02010
Author(s):  
Giada Romano ◽  
Elisa Pennacchia ◽  
Sofia Agostinelli

Buildings with architectural constraints and recognized historical values require a careful design process, aiming to combine the needs of conservation and the adaptation of the buildings to the modern use and its accessibility. The feasible interventions consist in improving the energy performance of the building envelope, in inserting efficient technological systems and using renewable energy sources where possible. The compatibility between the architectural constraints of the building and its more sustainable future use represents a crucial challenge. This work presents the interventions designed and realized on a small villa located in the Prati district, in Rome. Starting from the requests of the client, the primary objective was to create a comfortable house both in the winter and in the summer season, with widespread use of automation systems for managing the utilities. In line with the current energy scenario, the interventions were oriented to energy efficiency, the reduction of polluting emissions, the electrification of utilities and the use of renewable energy sources. The proposed solutions showed high gains in terms of energy saving even if the changes to the building envelope were limited by the desire to preserve the values of the cultural heritage. Therefore, a virtuous refurbishment can effectively respond to current energy efficiency goals.


Author(s):  
Ivan M. Gryshchenko ◽  
Mykhailo O. Verhun ◽  
Andrii S. Prokhorovskyi

This article attempts to verify the relevance of building a network of energy knowledge hub centres to tackle the priority objective in enhancing energy efficiency and energy saving management in higher education institutions. It is emphasized that the issues of careful and wise use of fuels and energy resources challenge more government efforts, active use of advanced projects to manage energy saving and energy efficiency through the integrated use of different energy sources. The study argues that to identify the potential for energy saving, setting regulatory indicators of energy consumption, determining the key energy saving measures and target objects in the public sector where energy saving programs are planned to be implemented, there is a need to conduct energy surveys with further developing of energy passports for buildings. In the frameworks of this study, the following research methods were used: abstract and logical analysis – to interpret the essence of energy saving concepts for universities; systemic approach – to identify the specifics of energy saving projects implementation in universities; in-depth analysis and synthesis – to forecast the university development priority area of the "Energy efficiency and energy saving"; system, structural, comparative and statistical analyses – to assess the energy consumption in universities; economic and statistical methods – to evaluate the level and the dynamics of the energy sources use before and after the implementation of project activities; graph-based and analytical methods – to facilitate visual representation and schematic presentation of forecasts for further development of energy efficiency and energy saving systems. The study offers a mechanism to shape a network of energy knowledge hub centres to forecast a priority development area of energy efficiency and energy saving programs in higher education institutions along with providing an overview on the process of energy saving based on energy knowledge hub centres by carrying out the following tasks: project identification, scanning, energy audit, implementation of an action plan, and monitoring. It has been verified that to enhance the energy supply system in the university buildings, the following objectives should be attained: using the energy knowledge hub to forecast the university energy efficiency and energy saving programme, implementing an automated individual heating station with weather regulation and installing new radiator heaters.


1978 ◽  
Vol 192 (1) ◽  
pp. 197-211
Author(s):  
M. Barrere

Energy problems will play a fundamental role in the near future and it is necessary that researchers, engineers, economists, ecologists start working together, before it is too late, in order to increase the existing non-fossil energy sources, to develop new sources or new technologies using less energy without polluting the environment. This situation may lead in some cases to conflicting actions, and therefore the engineer's task is to find the optimal solutions. The problem is considered from both the national and international points of view.


2012 ◽  
Vol 518-523 ◽  
pp. 5939-5942
Author(s):  
Liang Bin Tan

With the acceleration of urbanization, the rural living environment and energy consumption have changed greatly. Through the analysis of the indoor environment and energy consumption of rural houses in western China, the author puts forward to a series of methods and ways to improve the rural living conditions and energy saving so that the rural houses to be built would decrease the interference of existing natural system as far as possible, reduce the utilization of one-off energy sources and improve the living environment of rural people fundamentally.


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