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This paper examines the current condition and development prospects of the fuel and energy industry of the Kaliningrad region specified in regional programmes. The authors compare the potentials of different renewable energy sources and provide information on the exploitation of different renewable energy objects in the region. The article presents a preliminary assessment of the thermal capacity necessary for the residential area of an ecovillage with a population of 50,000 and suggests ensuring heat supply with the help of heat pumps. Рассмотрено современное состояние и перспективы развития топливно-энергетического комплекса Калининградской области, предусмотренные региональными программами. Проведено сравнение потенциалов различных возобновляемых энергетических ресурсов, собраны сведения об опыте эксплуатации объектов возобновляемой энергетики на данной территории. Осуществлены первичные оценки необходимых тепловых мощностей для жилого фонда экопоселка численностью 50 тыс. человек и предложен вариант его теплообеспечения от тепловых насосов.

The purification of industrial and surface wastewater from heavy metal ions (HMI) to requirements for the discharge of treated wastewater into natural waters is one of the most complicated environmental and technological problems. For the deep purification of waste water from the HMI, the use of cheap sorbents obtained from production waste is the most promising. One of the many-tonnage wastes of technology of inorganic substances is the sludge formed in the production of soda by the ammonia Solvay, s method. Currently, sludge is stored in sludge accumulators and is a long-term source of pollution of environmental objects. Scientific developments in the utilization of slimes with the production of building materials, etc., have not found wide practical use, which is due to the heterogeneity of the granulometric and chemical composition of the waste. Carried out X-ray phase analysis and studies of the physicochemical and chemical properties of waste samples showed that its main components are calcium carbonate (calcite) and calcium hydroxide (portlandite). It is known that the natural mineral limestone efficiently extracts HMI from aqueous solutions with the formation of less soluble basic salts, carbonates, and hydroxy carbonates of HM. It has been established that sludge samples have high sorption activity when copper(II) and zinc ions are extracted from low concentrated solutions (sorption capacity for copper ions is 35.0 mg/g, sorption capacity for zinc ions is 40 mg/g). To increase the operational properties, a method has been developed for the production of a modified granular sorbent based on the sludge of soda production, consisting in treating with sodium silicate. The effect of a dose of sodium silicate in the sorbent composition on the mechanical strength and sorption properties of the obtained samples was studied. It has been established that the introduction of 8,6% SiO2 into the sludge leads to an increase in the mechanical strength by 50–80%, and does not have a significant effect on the sorption activity of the material. The kinetic and sorption regularities of extraction of copper(II) ions and zinc on modified sorbents are revealed. Based on the analysis of the adsorption isotherms obtained, the adsorption equilibrium constants and maximum adsorption values (Amax (Cu2+) = 50.8 mg/g; Amax (Zn2+) = 97.1 mg/g) were determined. Obtained sorption materials can be recommended for wastewater treatment from HMI.

Направленность на здоровый образ жизни студентов-экономистов рассматривается как составляющая их будущей конкурентоспособности на рынке труда. Значимость направленности на здоровый образ жизни для конкурентоспособности обоснована теоретическими и эмпирическими методами исследования. Future economists' orientation on a healthy way of life is viewed as a constituent part of their future competitiveness on a labour market. Significance of orientation on a healthy way of life for competitiveness is substantiated by theoretical and empirical methods.

The modern urban policy sets rather complex challenges connected with simultaneous depreciation of finished goods, works acceleration, improvement of design decisions, and also with improvement of quality, reliability and availability of housing for construction branch. Standard constructive solutions of elements now in use of the building are rather well studied and have an application vast experience in housing construction. In the Republic of Bashkortostan the greatest distribution was gained by constructive solutions of elements of the building, classical for mass housing construction, in particular, standard options of overlappings and coverings from monolithic and precast concrete concern to them. Well-known shortcomings of these versions of decisions can be compensated, realizing overlappings from assembly and monolithic the keramzitobetonnykh of blocks, to conforming all requirements for reliability and the heat-shielding allowing to receive the qualitative bearing building element with an optimum level of expenses and time in climatic conditions of the Republic of Bashkortostan. The proposed solutions will allow to reduce costs of 1 sq.m of overlapping to 1,5 2 times, to lose volume weight to 1,5-2 times of rather classical options from monolithic and precast concrete. The given results of the technical and economic analysis of the recommended options of overlappings (coverings) show their high efficiency and availability to projects of housing construction, including to the socially oriented housing financed from budgets of all levels. Современная градостроительная политика ставит перед строительной отраслью достаточно сложные задачи, связанные с одновременным снижением стоимости готовой продукции, ускорением производства работ, совершенствованием проектных решений, а также с повышением качества, надежности и доступности жилья. Используемые в настоящее время типовые конструктивные решения элементов здания достаточно хорошо изучены и имеют богатый опыт применения в жилищном строительстве. В Республике Башкортостан наибольшее распространение получили классические для массового жилищного строительства конструктивные решения элементов здания, в частности, к ним относятся типовые варианты перекрытий и покрытий из монолитного и сборного железобетона. Хорошо известные недостатки этих вариантов решений можно компенсировать, реализуя перекрытия из сборно-монолитных керамзитобетонных блоков, позволяющие получать качественный несущий элемент здания с оптимальным уровнем затрат и времени, соответствующие всем требованиям по надежности и теплозащиты в природно-климатических условиях Республики Башкортостан. Предлагаемые решения позволят сократить затраты на 1 м 2 перекрытия до 1,5 - 2 раз, снизить объемный вес до 1,5-2 раз относительно классических вариантов из монолитного и сборного железобетона. Приведенные результаты технико-экономического анализа рекомендованных вариантов перекрытий (покрытий) показывают их высокую эффективность и доступность для проектов жилищного строительства, в том числе для социально-ориентированного жилья, финансируемого из бюджетов всех уровней.

The article presents the optimization method of load division between combined heat and power plant units. The method used the power unit division into functioning parts and the differentialexergy method. This method allowed presenting the unit as a structural diagram where exergetic subsystems are fuel supply, steam generator, turbine, generator and electrical equipment, water supply and regeneration, heat supply to the consumer. The differential-exergy method was based on a combination of exergy analysis and optimization method of economic efficiency criteria using uncertain Lagrange multipliers. The use of the exergy function of goal allowed avoiding the problem of division of fuel costs for each type of product that was important at optimization. The optimization criterion, its parameters and limitations were developed as well. These parameters can extend traditional technical and economic analysis of the combined heat and power plants operating mode, as they take into account thermodynamically rigorous division of fuel costs between heat and electric power at their complex production on the combined heat and power plants. The use of the differentialexergy method in optimizing the load distribution of the power units of the combined heat and power plants makes possible obtaining of fuel savings of 1.5 to 3%. It has been shown that if the parameters of power units deteriorate, the application of the method makes it possible to have the best performance of the power plant when it is compared with functioning of combined heat and power units at proportional loading.

The article deals with the issues of sustainable development of rural areas in Russia and directions for the modernization of the rural economy. The changes in the functions of rural areas in terms of the demographic crisis and economic restructuring are shown in the paper. The article contains an analysis of the potential development of the rural areas. The possible directions of the state policy in the field of rural entrepreneurship are presented in the article. В статье исследуются вопросы устойчивого развития сельских территорий России и направления модернизации сельской экономики. Рассмотрено изменение функций сельских территорий в условиях демографического кризиса и структурной перестройки экономики. Проведен анализ потенциала развития сельских территорий. Представлены возможные направления государственной политики в области поддержки сельского предпринимательства.

Принятие комплекса законодательных актов в сфере энергетики, объединяемых термином Energiewende , существенно изменило структуру потребления энергии в Германии: в настоящее время наи-большую долю в ней занимает зеленая энергия, выработанная за счет использования ветра, солнца, воды и биомассы. Подобные изменения, безусловно, можно расценивать как успех. Однако, одновременно с целена-правленным изменением структуры производства и потребления энергии в Германии возникли определенные социально-политические, экономические и юридические проблемы, требующие тщательного изучения. Дискус-сионным является вопрос о соответствии целей и предлагаемых мер их достижения, в частности, в отношении бесперебойности энергообеспечения, расширения электрических сетей, совершенствования подхода к ценооб-разованию, экологических последствий с учетом курса на тотальное расширение производства энергии за счет возобновляемых источников. Актуальными для Германии и затрагивающими энергетическую политику России являются вопросы ускоренного сворачивания ядерной энергетики и легитимности национального курса Герма-нии на продвижение зеленой энергетики в контексте интеграции с Европейским энергетическим рынком. В статье выполнен анализ указанного комплекса проблем и охарактеризована роль национального законода-тельства Германии в их решении. from wind, solar, water and biomass now provides the largest contribution to the total electricity consumption. In this respect, Energiewende can be regarded as an overall success. But in parallel to this scenario, a critical discourse has evolved concerning socio-political, economic and legal issues. The congruence of objectives and measures for example, in regards to ensuring security of supply, expansion of electricity networks, development of electricity price and envi-ronmental consequences in the course of expansion of electricity generation from renewable sources is the main focus of socio-political and economic discussions. Accelerated phase-out of nuclear energy and constitutional disputes regarding the legality of national orientation of the promotional scheme for green electricity in respect to the integration of German electricity sector in the European internal market for energy are in the centre of the debate and have a remarkable impact on the energy policy in Russia as well. Against this background, present article examines the con-tribution of German Energiewende to the resolution of complex challenges of the developed industrial society. №4 (226) (2017)

The author assesses the impact of the Yuan exchange rate volatility on the indicators of the RussianChinese trade (the analysis is made on the ground of the statistical database CEIC). Quantitative estimates of changes in Russian-Chinese merchandise trade by commodity groups (in the HS classification) due to the revaluation of the CNY against the USD were obtained via the regression analysis. In the case of the revaluation of the Yuan to the US dollar the value of Russian exports may increase for such commodity groups as mineral products, chemical industry products, base metals, precious stones and metals, and vehicles. This article shows that the value of Chinese imports will decrease for such merchandise groups as transport vehicles, machinery and equipment, leather industry products, non-precious metals and products from them; in this case, the import of the food industry products, mineral products and optical instruments will decrease insignificantly. The author concludes that the revaluation of the Yuan, contributing to the growth of Russian exports and the reduction in Chinese imports, will not cause a radical change in structure of the Russian-Chinese trade. На основе показателей статистической базы данных CEIC проведена оценка воздействия динамики курса юаня на параметры российско-китайской торговли. С помощью регрессионного анализа получены количественные оценки реакций товарных групп (в классификации HS) российского экспорта в Китай и китайского импорта в Россию в зависимости от вариантов ревальвации юаня по отношению к доллару США. Обнаружено, что в условиях ревальвации юаня к доллару стоимостные объемы российского экспорта минеральных продуктов, продукции химической промышленности, недрагоценных металлов, драгоценных камней и металлов, а также транспортных средств могут возрасти.

The work relates to the problems of using heat pumps in district heating systems. The aim of the study is to increase the energy economic efficiency of combined heat supply systems with heat pumps using natural refrigerants. This goal is achieved by developing a scheme of the system in which part of the building is heated centrally from the CHP, and the other part is from a heat pump installed in the building, and heat pump which receives low potential heat from the return network water leaving the part of the building, - centralized, and from outside air. The most significant results of the work are the developed scheme of a carbon dioxide heat pump, which combines both the possibilities of working in a quantitative heat supply system and when preparing hot water for buildings in a non-heating period. The significance of the obtained results lies in the fact that the proposed technical solution allows to reduce significantly fuel consumption for thermal power plants and the costs of consumers when they pay for consumed energy. Heat pump circuits have also been established for the quantitative law of regulating the operation mode of the heat supply system. With the proposed scheme of operation, the heat pump for domestic hot water works only in the non-heating period, and domestic hot water is provided during the heating period from the CHP.