• Energy Research
• 13. Climate action close
• GB close
• Kuban State Agrarian University close

Abstract One of the options for non-dependence on fossil fuels is the use of renewable energy, which has not grown significantly due to the variable nature of this type of energy. The combined use of wind and solar energy as energy sources can be a good solution to the problem of variable energy output. Therefore, the purpose of this research is to model a combination of the wind-turbine system and photovoltaic cell, which is needed to investigate their ability to supply electrical energy. To determine this important power production, real data of solar-radiation intensity and wind are used and, in modelling photovoltaic cells, the effects of ambient temperature are also considered. In order to generalize the studied system in all dimensions, different scenarios have been considered. According to the amount of electrical power generated, during the evaluation of these scenarios, two economic parameters, namely the selected scenario of a wind/solar system with diesel-generator support, was determined.

One of the reasons for the decline in agricultural land is soil degradation processes. The main negative processes occurring in soils and leading to their degradation are erosion (water and wind) and a decrease in the humus content in the soil. A significant spread of negative processes developing as a result of the action of natural and anthropogenic factors leads to a critical decrease in soil fertility. The washout of the upper fertile soil layer and the formation of large gullies due to improper soil treatment results in soil erosion. In order to prevent soil erosion, it is necessary to take measures to prevent an increase in the area of degraded land. The paper discusses modern innovative methods of combating water and wind soil erosion. Various examples of the application of modern innovative methods in different countries are presented.

In the future, the use of nuclear energy in national economy will rise. After accident at the Chernobyl nuclear power plant, staff of Fukushima 1 pay special attention to the safety of reactors, however, emergency situations are still possible. Eco-monitoring in natural and urban environments is carried out in order to determine the level of ecological pollution, including radioactive pollution. Therefore, studies in that direction are relevant and their relevancy is only increasing over the years. The aim of this study is to research migration and accumulation of 90Sr in vegetative and generative plant organs: cherry-plum (Prunus cerasifera Ehrh) tree and stone fruit species, gooseberry (Ribes uva-crispa) shrub. Objectives: 1) applying 90SrCl2 to the soil, imitating precipation (field experiments); 2) planting: Prunus cerasifera Ehrh; Ribes uva-crispa into artificially polluted by 90SrCl2 soil; 3) growing and monitoring of studied plants in the artificially polluted by 90SrCl2 soil. The level of pollution of experiment field reached 500 MBq/m2. The accumulation of 90Sr in vegetative and generative organs of trees (Prunus cerasifera Ehrh) and shrubs (Ribes uva-crispa) was researched. Experimental plots have been laid according to methodic of Dospekhov B.A. Measurements of beta-emitting nuclides activity in samples have been made using the “Progress” software on the USK “Gamma Plus” (beta-path) device. As the result of research it has been found that both plant species have been accumulating nuclides. In 2016 cherry-plum accumulated 90Sr in the bark, wood, leaves and fruits 2.0, 2.1, 2.6 and 2.6 times more accordingly than the gooseberry. As a result of the experiment, material, that can be used in eco-monitoring, was obtained to provide nuclear safety of urban properties in the territories, allocated for the construction of public and residential buildings.

The study aims to assess the alternatives to the diversification of energy carriers in the ASEAN member countries in the context of minimizing the risks associated with the creation of an energy portfolio. The indicator of the diversification of the energy carriers of the country based on the Shannon-Wiener index is used. In order to identify possible changes in the energy market of the ASEAN member countries, three scenarios are proposed based on an increase in the share of renewable energy sources. The assessment of possible deviations from the expected results according to the described scenarios for an increase in the share of renewable energy sources made it possible to single out countries affected by positive and negative deviations.

This article discusses the problems of achieving energy efficiency in residential low-rise housing construction within the framework of the resource-saving technologies use at the federal and regional levels. The need to solve these problems is due to the fact that the industry and transport development, as well as the accompanying increase in energy consumption, including the consumption of end consumers, have led to an acute mankind dependence on energy resources. The increase in energy demand with the simultaneous complication and rise in the cost of energy production, as well as the aggravation of global environmental problems have made energy conservation and energy efficiency the most important development areas in many countries of the world.

The purpose of the research is to develop and justify a fish-protection structure that is capable of improving the protection of young fish and the ecological condition at the reclamation water intake of a hydraulic structure. This protection method prevents young fish from being sucked into the water intake structure by establishing a fish-protection screen across the waterway using ozone-air mixture and filter cassettes. This structure reduces the risk of young fish’s entering the intake structure, improves the immunity of young fish, and saturates the water with ozone.

Abstract The paper reports about the project for powering the off grid standalone 3 kW power consumer in Arctic, which could be further replicated and scaled up to 50 kW power with minor changes. The project was targeted on the development of autonomous Wind-Hydrogen Powered Plant with the Wind Turbine for initial power generation and Hydrogen Module serving as Uninterruptible Power Supply, for universal usage in any point of the World including the cold zones of Arctic and Antarctic, deserts of Africa and isolated islands characterized by destructive sea salt fogs. At the same time, the equipment is clean, continuous operating, long-lasting and maximally reliable, with no polluting or greenhouse emissions. The components of the Power Plant are developed for the unified DC voltage with an option of adding more on the DC bus bar, scaling the power of the Plant up. It presents a flexibility and modularity in combination with the scalable Hydrogen Storage capacity suitable for different demands of distributed energy consumers including both residential and small business. The comprehensive analysis of the renewable energy sources and in particular wind turbines included the study of the main known types and classes. As a result, the choice was made in favor of proprietary design of innovative multi-tier scalable Vertical Axis Wind Turbine as a main power source, the uninterrupted supply part of which is based on the looped cycle Hydrogen Module containing Electrolyser Module, Fuel Cells Assembly System and Hydrogen Storage with communication and control equipment. The intelligent control algorithms optimize the operation of the Plant minimizing the start-stop cycling phases, stretching the servicing periods and extending the lifetime of the equipment. Remote control provides monitoring and managing all processes of power generation and hydrogen storage via Internet anytime, almost anywhere. The project has proved the presented equipment as long-live, reliable and environmentally friendly, as well as modular and flexible, easily scaled under consumer's control, covering the big power consumption range from personal to small business scale. The developed Power Plant is affordable for the remote energy consumers as the estimated equipment value is correlating with the cost of power line installation using no deep engineering or technological skills.

The paper deals with the environmental issues of agriculture. Examples are given that pose a threat to the vital activity of living organisms from various types of agricultural and human activities. The subject of the study is the analysis of environmental issues arising from the intensification of the development of agricultural industry. Intensive agricultural activity leads to pollution of surface rivers, lakes, seas and groundwater, soil degradation and aquatic ecosystems; violation of the water regime in large areas during drainage and irrigation; desertification due to wind erosion; destruction of natural habitats of living organisms of flora and fauna. An urgent problem of agriculture is a decrease in the content of vitamins and microelements in crop production and the accumulation of harmful substances in them. The reasons for these negative processes are soil degradation, intensification of agricultural production.