• Energy Research
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Purpose. In modern conditions of energy consumption growth and a rapid increase in energy prices the actual problem is the development and implementation of energy efficiency programs and resource-saving conversion in to a source to provide the needs of industry and municipal power. The paper aims to solve the urgent problem of energy saving and efficient use of fuel-energy ones and heat supply system optimization on the basis of Uman National University of Horticulture (UNUH). Methodology. The work investigated the process of heating and hot water supply in the course of 2007-2015 years. Implementation of current problems of energy saving is grounded on the scientific-practical and efficient assurance of fuel and energy usage. At the same time energy-saving technologies are viewed as a priority direction of the energy sector development, reduction of man-induced impact on the environment and as a way of improving the competitiveness of the national economy. Findings. Statistical data acquisition and analyzing of gas flow and outside air temperature for nine years was carried out. On the basis of this analysis, the problem was identified and specific targets for its solutions were set. Originality. Scientific novelty lies in solving the problem of energy saving and efficient use of fuel resources in Ukraine through the use of a systematic approach, the methodology development of efficient use of different fuels and optimization of local heating operation, applying contemporary automation and control systems. Firstly it was in detail analyzed and conducted the comprehensive assessment of various factors influence on energy conservation. It takes into account the human factor, professionalism and responsibility of the operators of boilers and their superiors, as well as the relevant control services. Practical value. For UNUH campus hybrid use of solid fuel and gas boilers was carried out. Decentralization of the university heating system has been conducted through the restoration of 350 individual heating systems in residential buildings, remote departments and campus dormitories. The conclusions propose the list of activities upon the real economy of fuel and energy resources, and measures to overcome the economic and political crisis in the country.

The paper represents the analysis, which has helped to establish the usage of gas hydrate technologies in the methane conversion. This gas could be obtained in different ways. Possibilities and sources for the gas obtaining have been demonstrated. Use of other environmentally friendly sources to support operation in such systems in terms of joint energy complex has been considered. The necessary kinetic connections to provide operational sustainability of all the constituents have been given. The approach helps evaluate quantitatively the priority of its physicochemical transformations to obtain gas hydrates artificially. It is possible to transport methane at considerable distances when it is solidified. Actually, in this case there is no necessity to build costly compressor stations and pipelines for its transportation to consumers. The approach is extremely important for mining regions as it helps prolong the operating period and working out of the abandoned and off-balance coal reserves. In this case, it is proposed to apply special gasification technologies tending to maximum methane recovery. The proposed solutions give the possibility to define the trends of our further research. They will be highlighted in the following authors’ studies.

The article explores the problem of changing the worldview of mankind and the transition to the concept of sustainable development, which requires harmonization of the economic, environmental and social component to ensure the life of modern generations without prejudice to future ones. The conditions for the emergence of the concept of sustainable development and the progress of countries in achieving it using the index of achieving sustainable development goals are studied. A significant role in the process of studying the goals of sustainable development is given to ecologization of all life spheres, including the economy. The place of ecologization in the goals and objectives of sustainable development is determined, the interpretation of ecologization and the evolution of this concept are analyzed. The ecologization of economy has passed certain stages in its development and has led to the emergence of a new direction of science and practical activity − the ecological economy, which was formed at the intersection of economics and ecology. The main task of the ecological economy is to reduce the eco-destructive impact on the environment from human economic activity. Ecological economy adheres to the goals and objectives of sustainable development and is an integral part of a sustainable economy, reflecting its environmental aspect. Determination of the country's subsidiaries in ecologization of the economy is carried out using the green economy index, which reflects the degree of ecologization in various fields and has something in common with the index of achieving sustainable development goals. A comparative analysis of the indices of sustainable development and the green economy index, their values for Ukraine. The composition of the ecological (green) economy includes other ecologicallyoriented types of economy, each of which studies a certain direction of ecologization and reducing the eco-destructive impact on the environment. With the development of ecological thinking and a change in the worldview of mankind, the number of environmentally-oriented types of economy will increase as the number of scientific studies on environmental issues increases, which, in turn, will achieve the goals of sustainable development

Automobile industry is one of the most developed industries in Ukraine and in the world today. The ever-increasing demand for transportation leads to an increase in demand for fuel, which in turn increases its deficit and value. Therefore, the high cost of traditional hydrocarbon fuels and the constant reduction of their world reserves compels scientists to find renewable biofuels. The objective of this paper is to present results of a study aimed at investigating the possibility of using alternative fuels derived from the alcohol industry waste, in pure form and as additives to hydrocarbon fuels. According to the results, the main technical and operational properties of alternative fuels received on the basis of A-92 petrol and fusel oils, experimental values of density, viscosity, distillation temperature on the ENGLER machine, temperature of formation steam congestion, their optimal percentages in the mix for different types were obtained in internal combustion engines. The findings of the research also indicate that an addition of fusel oils to A-92 gasoline leads to improvement of the viscosity-temperature characteristics of formed mixtures and increase in the temperature of formation steam cork, which ultimately reduces the consumption of fuels by 10-12% and also contributes to solving the problem of recycling fusel oils.

Problem. Development and implementation of green technologies is both an urgent and a cost-effective scientific and engineering task. Therefore, the issues related to the study of renewable energy sources, which are used as the main sources of energy for electric vehicles, are quite relevant and promising. At the same time, an equally important question is how profitable is building solar charging stations in terms of both ecology and economy. Goal. The aim is calculation and analysis of technical and economic indicators of a solar charging station for electric vehicles (EV). Methodology. The analytical methods of studying the development and application of the ways and devices to transform the energy of the sun into electricity are used, as well as the methods of experimental research and mathematical methods of processing and modulation of the received results; methods of calculating technical and economic indicators. Results. The review of the literature on the development of renewable energy sources, in particular, solar power plants, and the spread of electric vehicles with the gradual displacement (replacement) of traditional cars working on internal combustion engines with electric vehicles (BEV and PHEV) was made. The main parameters and technical characteristics of the solar-powered charging station (SPCS) were studied. For the analysis and calculation of technical and economic indicators of SPCS for EV it is offered to take a SPP with a capacity of 20 kW as a basis. The calculation of SPCS electricity generation both for own consumption and for power supply of EV and the sale of surplus electricity to the general network at the “green tariff” was carried out. Originality. The technical and economic calculation of SCS was made taking into account the rise of electricity prices in Kharkiv region (Ukraine). Practical value. According to the analysis of the obtained results, it can be said that the payback period of SPCS for EV is about 7.9 years. If we consider the constant increase in the cost of electricity (approximately 15% per year), we can expect the payback after 6.8 years of operation.

The formation of the harmony of the maritime trade market is based on the reaction of ship-owning and port structures to the nature of changes in the main characteristics of cargo flows. At the same time, relations and the reaction of the ship-owning complexes to the optimization of the technical and economic level of the competitors are being formed. A shipping company as an enterprise develops and functions in contrast to other production structures of the national economy in the context of international competition. Regardless of the flag of registration of ships, companies operate in the global maritime trade market. It is the priorities of international conventions that determine managerial and marketing technologies. Therefore, a special nature of the participation of shipping companies in the formation of the final economic results is formed. It is this factor that requires constant clarification of the patterns of sustainable positionning in the system of the international division of labor. Also, it should be noted that the most important tendencies in improving the management of the development of subsystems of the national maritime transport industry are balancing the assessment of the merchant fleet and ports both from the standpoint of macroeconomic and entrepreneurial interests. Therefore, research focuses on the selection andimplementation of the special priorities of the national maritime transport complex. In this regard, the temporal characteristics of the routes are considered rather thoroughly. However, the inconsistency of approaches to the formation of systemic security remains.The efficiency of the state and functional and economic stability should be consi-dered as the main criterion for changing the form of the ownership. With the stability and sustainability of maintaining the liquidity conditions of the enterprise, the change of ow-nership is determined by market conditions and the marketing strategy of the owner himself. Usually, in this state, the change in the form of ownership on the part of the owner has particular number of non-standard reasons. For such enterprises, privatization is problematic because it does not optimize the social and economic con-sequences and results.Keywords: maritime trade, shipping companies, cargo flows, marketing techno-logies.

Intelligent transportation systems mostly operate on information exchange principle between vehicles and roadside infrastructure. They are commonly regarded as a base technology for persistent diminution of road accidents and traffic efficiency increase. However, intelligent transportation systems can also be used at all levels of transportation systems as a basis for stable development of cities, enterprises, regions, states, continents. According to the research, the existing intelligent transportation systems not only provide the considerable reduction of greenhouse gases emissions, fuel saving, time of travel cutting, but they don’t marginalize citizens’ mobility as well. Thus, the further development and introduction of modern transportation innovative technologies will allow to guarantee the energy- and resources efficiency and, therefore, the sustainable development of the whole society.