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The thermal and thermodynamic calculation of closed and open loop individual systems of coal preparation at TPP with different types of mills reveals the possibilities of increasing the efficiency of the technological scheme by utilizing the heat removed from the system and thus increasing the thermodynamic efficiency.
Modern trends in the development of technology are based on the need for experimental studies of the equipment being developed in laboratory conditions with the maximum approximation of the operating modes to real ones. Such studies are impossible without the development of specialized stands with test automation systems. Automation of processes involves the organization of measuring channels as part of a stand using analog-to-digital conversion (ADC), digital-to-analog conversion (DAC), digital-todigital conversion (DDC) and the development of a hardware-software complex (HSC) based on high-speed computing devices. As part of the project to create new high-tech equipment, the specialists of FSBEI HE “KSPEU” and JSC “ChEAZ” developed and created an experimental stand designed to verify and confirm the correctness of the selected structural and circuit solutions used in the design of a synchronous valve electric motor (SVEM) and rod control station borehole pumping unit (RC SBPU). The object of experimental research was the prototype and prototype electric drives of oil pumping units, as well as their components: SVEM and RC SBPU. The article discusses the ways of organizing the measuring and control channels of the measuring and information system of the experimental bench, which allows to study samples of synchronous valve motors and control stations of the sucker rod pump unit in the regimes that are as close as possible to real field conditions simulating the operation of the oil pumping unit of the sucker rod pump unit. Thus, in the experimental stand, analog, discrete and digital control and control channels are implemented.
Nowadays renewable energy sources are actively promoted as the most sustainable types of power to drive electricity generation of the future. Distributed generation with the use of wind turbines, solar panel, and biological fuel may become an answer to the numerous challenges which large power grids are facing. But integration of renewable energy based generation facilities requires not only availability of special technical means but also establishing of new types of trading patterns and platforms are necessary. This article provides the concept of smart billing system which allows to involve single households to the progressive type of energy consumption and generation and creates the new type of energy system and market participantprosumer. Two types of billing approaches are suggested for households equipped with renewable energy sources based generation facilities. The first one implies that generated energy is consumed by the household itself and the second one implies that surplus of generated energy is sold to the grid. As calculation has shown the first pattern is beneficial for small facilities which in overall don't have a large surplus in generation over consumption. And the second one is beneficial for those who generate more than they consume.
Currently, the worldwide trend has been the transition of many countries to low-carbon energy sources. These changes are dictated both by external factors, such as the rapid growth of information and communication technologies, as well as the general policy of world powers advocating a clean environment and ensuring energy independence for the future. In Russia, the introduction of small generating capacities on renewable energy sources has great prospects due to the huge number of regions that are difficult to access for electricity supply. But the integration of generating capacities based on renewable energy sources requires not only the availability of special technical and legislative means, but also the competent selection of a tariff for a prosumer. This article presents the concept of an intelligent system that allows individual households to be involved in a progressive type of energy consumption and generation and creates a new type of energy system and market participant - prosumer. Two systems are offered for households equipped with solar panels. It is proposed to extend the practice of settlements at unregulated prices to individuals and households with the possibility of choosing the most favorable price category for the considered prosumer.
A stationary energy storage boom is forecast for the next two decades, according to a report by the US consulting firm Bloomberg New Energy Finance (BNEF). BNEF analysts believe that energy storage around the world will grow exponentially, from a modest 9 GW / 17 GWh commissioned by 2018 to 1,095 GW / 2,850 GWh by 2040. Experts call the ongoing global changes a “contributory revolution”. The development of energy storage systems is related to trends in the energy sector, energy costs, political and environmental conditions in the world. Moreover, energy storage technologies can face both general and specific risks. The authors of the article took into account possible risks and carried out a qualitative scenario analysis of the development of energy storage systems in Russia in the future until 2035. The authors used a probability scale to avoid cognitive biases in the scenario assessment. The most likely scenario for the development of ESS today we consider the basic.
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