{"title":"Volume Estimation Methods of Exhausting Bulk Biogas From Russian Growth Range","authors":"E. Klimov, E. Bodrova, E. Sirotkin","doi":"10.1109/URALCON.2018.8544300","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544300","url":null,"abstract":"This article is devoted to the issue of determining the output volume of landfill gas from solid waste landfill. At the beginning of the article the introductory information with characteristics of landfill biogas, its negative impact on the environment is presented. The main mathematical models used for scoping of an exit of landfill biogas from solid waste landfill around the world are given in the second half of the article. The analysis of mathematical models is made and the main conclusions about the reliability of calculations are made when forecasting the volume of landfill gas. The goal of this study was to provide an estimate of the potential for using municipal solid waste as a resource for bioenergy with carbon capture and storage for Chelyabinsk (Russian Federation) and to compare the different models. A simple model is chosen for assessing the potential of the landfill for further energy recovery from biogas.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123226273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nonvolatile Portable Power Supply. Performance Capabilities and Organization Principles in Continental Areas","authors":"Oleg Berg, S. Prischepov","doi":"10.1109/URALCON.2018.8544359","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544359","url":null,"abstract":"The analysis solar and wind electrical generation units efficiency in the continental areas with determination of the most potential constructive decisions is carried out. The framed wind rotor developed by the authors providing the continuity of electric power supply during the year, portability and transportability of the wind-electric unit. The necessity of using the positioning control systems of solar electrical units’ photosensitive plates with the increased generation energy efficiency up to 42% is scientifically grounded. The organization of nonvolatile electric power supply complexes by heterogeneous energy sources provides for the increase in the energy supply stability by more than 2 times, at the same time, it helps to reduce the complex size and mass 2 times if compared with the homogeneous ones. The analyzed portable systems’ organization principles enable the authors to make autonomous electric power generating complexes that do not require connection to stand-by energy sources.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"839 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116513917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Features of Practical Implementation of Three Phase Transformer-Rectifier Device with Pulse of Rectified Voltage P=12","authors":"G. S. Mytsyk, T. Zaw","doi":"10.1109/URALCON.2018.8544338","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544338","url":null,"abstract":"When developing three-phase multi-channel transformer-rectifier devices (TRD) with the summation of channel currents by means of a trans filter (TF), for example, for the number of channel L = 2 (P=12), depending on the conditions of the TRD application, particularly on the secondary windings and on the value of the frequency of the supply voltage. There can be a problem of an extremely inequality distribution of the current between the channels. The reason for this problem is the practical impossibility of fulfilling the requirement of equality to the value of $sqrt 3 $ of the transformation coefficient (KTV) of voltage transformer (TV) between its two 3-phase windings with the topology \"star\" and \"delta\". The paper demonstrates that the approximation of the KTV parameter to the ideal value of $sqrt 3 $ by increasing the number of turns above the calculated value allows us to find a combination of them, which makes it possible to reduce the inequality of the current division between the channels. However, in the end, this leads to the redistribution of TV and to the deterioration of its weight and size indicators. In order to eliminate this drawback, another method for the synthesis of the TRD-12 structure is considered, in which, instead of TF in each phase of two secondary windings, one single-phase two-winding current transformer (CT) is installed. They provide for the equalization of currents in the channels. Since the condition ${{text{K}}_{{text{TV}}}} = sqrt 3 $ must also be satisfied between the two CT windings, the effect of the deviation of the real value of the KTV from the ideal value was also carried out here. It is shown that the influence of this factor, as well as the factor of the deviation of the analogue coefficient in TV, on the inequality of the current distribution between the channels is insignificant. The recommendations are given on the use of two versions of TRD-12 (with TF and with CT).","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128069749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Numerical Analysis of Efficiency Parameters of Thermoelectric Generator for Low-potential Heat Recovery","authors":"D. Yerezhep, V. Kogai, A. Minikaev","doi":"10.1109/URALCON.2018.8544282","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544282","url":null,"abstract":"In this paper, we analyzed the utilization of low-potential heat with the help of automotive thermoelectric generators (ATEGs). With the introduction of ATEG in cars, this device will reduce the amount of exhaust gases and increase the environmental class of this car. However, to date, the effectiveness of this technology is small in comparison with competitive \"green technologies\". To improve the characteristics of ATEG, a computer model of the thermoelectric generator TEG was created. A system of differential equations is used to describe thermal, electrical and mechanical processes. The distribution of mechanical stresses and their dependence on temperature were studied using a standard module. Further, we analyzed the adequacy of this mathematical model, by comparing the powers of the calculated and real working devices. The relative error did not exceed 7.8%, the calculated efficiency factor was 8%. In this study, it is proposed to increase the efficiency of the thermoelectric module by several times. This study is devoted to the increased efficiency that can be achieved by replacing the material of the module legs with a nanostructured material with improved thermoelectric properties and by geometric changes in the leg of the generator module. The development and analysis of the model is of great interest for the improvement of new TEG and ATEG.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"149 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130125886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Efficiency of Application of Direct Current Insert for Purpose of Restriction of Short Circuit Currents at Association of Power Supply Systems","authors":"V. A. Agapov, S. Mitrofanov","doi":"10.1109/URALCON.2018.8544360","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544360","url":null,"abstract":"The system of power supply is characterized by the continuous growth of loadings. By transfer of such great values of capacities on the power line there is a problem with the restriction of short circuit currents. One of alternative ways of the solution of this problem is the application of inserts of a direct current creating \"gap\" in a chain. A research problem is to carry out the comparative analysis of the application of a direct current insert and the switch between tires-110 of kV on the substation of Irkutsk 330 kV in the PVK program complex ARA RZA for the purpose of the restriction of short circuit currents. In this article calculation for the schemes working in the mode on alternating and direct current is made. The values of the parameters in knots, short circuit currents are removed. Finally, the authors draw a conclusion about the efficiency of application of a direct current insert in this case as a result of the analysis.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"1016 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133842909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation Model of Autonomous Solar Power Plant with Dual-Axis Solar Tracker","authors":"S. Mitrofanov, D. Baykasenov, M.A. Suleev","doi":"10.1109/URALCON.2018.8544275","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544275","url":null,"abstract":"The article provides a description of a simulation model of a solar power station with an automated dual-axis solar tracker, which was developed using MATLAB/Simulink. The presented development includes a random weather generator (intensity of solar radiation), automated load redundancy, and also simultaneous use of two types of solar cells such as monocrystalline and polycrystalline. This paper presents the results of modeling, which prove the effectiveness of the application of solar modules with a dual-axis solar tracker in comparison with statically located modules. In addition, on the basis of the conducted analysis of the modeling solar power station work in MATLAB/Simulink optimum operating conditions of a photovoltaic plant have been identified. The developed model will allow for researching the characteristics of a solar power plant and predicting the amount of energy generated by solar panels in a specific place.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115697927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimization of Power and Place of Connection of Photovoltaic System for Power Supply of Poultry Farm","authors":"A. Bogdan, V. A. Bogdan, K. A. Garkavyi","doi":"10.1109/URALCON.2018.8544351","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544351","url":null,"abstract":"Power supply systems using renewable energy sources require their optimization. In this paper, basing on the solution of the objective function for determining the minimum loss in the line, the authors determined the optimal power and the place of connection of the photovoltaic system as an additional power source to reduce power losses in the supply line with a uniformly distributed load and to meet the requirements of the International Electrotechnical Commission and the national standards of the Russian Federation for the permissible voltage deviation at consumers. The peculiarity of the proposed scheme is the connection of the photovoltaic system not on busbars of a low voltage transformer substation, and to the load at an optimal distance from these busbars. The study also provides a comparison of the energy performance of the power supply system of the poultry farm, where electric loads have active and reactive components, with an additional power source and without it, taking into account the daily consumption schedules and the photovoltaic system production schedule. A matrix method with a representation of the photovoltaic system by a current source was used in the calculations of currents and losses.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117252622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Increase Methane Emission of Biogas Plant Using Combined Charging Raw Materials","authors":"V. Bukhmirov, A. Sadchikov, N. F. Kokarev","doi":"10.1109/URALCON.2018.8544278","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544278","url":null,"abstract":"The article gives brief information about the work of bioenergetic station \"EcoVoltAgro\", using combined feedstock. The features of the technological process of waste processing and obtaining final products - methane effluent and biogas, electric and thermal energy are considered. The results of the company's activity for the period from June 2011 to December 2017 are given. A method is proposed for increasing methane output by using substrates prone to rapid splitting, in combination with the main components of the charging mass. The results of the application of the proposed method at the bioenergetic station \"EcoVoltAgro\" are shown. As a result of the optimization of the loading process and the introduction of rapidly cleavable components, a significant (up to 50% or up to 96,3 м3/day) daily increase in biogas was noted, as well as an increase in the volume fraction of methane in it (up to 82%).","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122348738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Approaches to Organization of Emergency Control at Isolated Operation of Energy Areas with Distributed Generation","authors":"P. Ilyushin, A. Pazderin","doi":"10.1109/URALCON.2018.8544361","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544361","url":null,"abstract":"The faults at isolated operation of energy areas with distributed generation objects (DG) have their own characteristic features which are clearly manifested in the event of emergency energy shortages. Designing of the emergency control intended to normalize the power supply to consumers in such energy areas must be carried out with special studies of electric operation. The results of operation calculations are given for loss of a part of the generation without a short circuit (SC), with SC in the energy area, at which power failure results in significant transient parameters changes. The effect of the load composition and characteristics of various generating units (GU) including RES on the parameters of emergency modes and the severity of their consequences is shown. The effectiveness of the application of additional load shedding (ALS), which is actuated by the fact of the generation of GU tripping commands, was studied. The approaches to the assessment of the reliability of energy areas at the isolated operation with the respect to their resistance to active power deficiencies are proposed taking into account the economic efficiency of different GU usage.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125164376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Internal Lighting Control on the Basis of Fuzzy Inference","authors":"N. G. Semenova, L. Semenova","doi":"10.1109/URALCON.2018.8544341","DOIUrl":"https://doi.org/10.1109/URALCON.2018.8544341","url":null,"abstract":"The urgency of the problem is caused by the need to develop and implement energy-efficient and energy-reducing technologies, as one of the priority strategies for innovative development of the Russian Federation, and the lack of energy efficient lighting control systems, which consume up to 30% of the generated electricity. The aim of the research is to develop an energy-efficient indoor lighting control system for the production facility. The research methods are fuzzy modeling and the Mamdani fuzzy inference method, implemented in the Delphi programming environment. The main results of the research: a new method for energy-efficient control of the capacity of indoor lighting facilities is proposed. It differs from existing ones in that the control effect is created by forming two input signals from measuring sensors: lighting and people present, taking into account the regulated standards of production facilities illumination. A new mathematical model for determining the optimal value of the power consumption by the indoor lighting facilities of production facilities is developed on the basis of the Mamdani fuzzy inference method. A hardware-software stand was developed for carrying out experimental studies.","PeriodicalId":263504,"journal":{"name":"2018 International Ural Conference on Green Energy (UralCon)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132603847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}