Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602924
E. Solomin, A. Ibrahim, E. Sirotkin
The article describes the effect of electromagnetic waves on the human body emitted by a cellular phone in the context of the voiced control of renewable energy sources plants. The simulation of the electromagnetic waves propagation from a cell phone located near the human head has been carried out. The phone model has been simplified to three elements - plastic casing, metal base antenna and metal washer. The simulation was carried out in the EM.CUBE program. As a result, it is not recommended to perform longtime voice control operations for renewable energy sources plants using a cell phone.
{"title":"Analysis of the Cell Phone Influence on the Human Body During Voice Control","authors":"E. Solomin, A. Ibrahim, E. Sirotkin","doi":"10.1109/FAREASTCON.2018.8602924","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602924","url":null,"abstract":"The article describes the effect of electromagnetic waves on the human body emitted by a cellular phone in the context of the voiced control of renewable energy sources plants. The simulation of the electromagnetic waves propagation from a cell phone located near the human head has been carried out. The phone model has been simplified to three elements - plastic casing, metal base antenna and metal washer. The simulation was carried out in the EM.CUBE program. As a result, it is not recommended to perform longtime voice control operations for renewable energy sources plants using a cell phone.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"45 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":"134306907","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602712
I. Komarov, A. Rogalev, D. Rostova
Two versions of thermal schemes of low-capacity bioenergy complexes providing reliable heat and electricity for household consumers are proposed in this article. The first scheme is a combination of a pneumatic energy accumulator and a pellet boiler of a special design. A pneumatic accumulator is designed to generate electrical energy in the amount necessary to power the auxiliary pellet boiler systems in the event of an emergency shutdown of the centralized power supply. During the study, it was determined that in order to increase the working time of the complex from a charged accumulator, it is advisable to heat the air at the entrance of the expander with combustion products taken from the gas pipeline of the boiler. Heating the air to 400°C at a fixed pressure increases the operating time of the boiler from the charged accumulator by 81.5% due to the reduction of the air consumption which is required to provide the specified electric power. The specialty of the second scheme is the possibility of reliable heat supply during the complete absence of any connection to the power supply network. As a result of the variant simulation of the thermal scheme, it was established that at a temperature of 400°C of the heated air and at a pressure of 3 bar, the power of the expander is sufficient enough to ensure the operation of the compressor and to cover the boiler's auxiliaries.
{"title":"Autonomous Biofuel Power Unit to Provide Thermal and Electrical Energy for Individual Consumers","authors":"I. Komarov, A. Rogalev, D. Rostova","doi":"10.1109/FAREASTCON.2018.8602712","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602712","url":null,"abstract":"Two versions of thermal schemes of low-capacity bioenergy complexes providing reliable heat and electricity for household consumers are proposed in this article. The first scheme is a combination of a pneumatic energy accumulator and a pellet boiler of a special design. A pneumatic accumulator is designed to generate electrical energy in the amount necessary to power the auxiliary pellet boiler systems in the event of an emergency shutdown of the centralized power supply. During the study, it was determined that in order to increase the working time of the complex from a charged accumulator, it is advisable to heat the air at the entrance of the expander with combustion products taken from the gas pipeline of the boiler. Heating the air to 400°C at a fixed pressure increases the operating time of the boiler from the charged accumulator by 81.5% due to the reduction of the air consumption which is required to provide the specified electric power. The specialty of the second scheme is the possibility of reliable heat supply during the complete absence of any connection to the power supply network. As a result of the variant simulation of the thermal scheme, it was established that at a temperature of 400°C of the heated air and at a pressure of 3 bar, the power of the expander is sufficient enough to ensure the operation of the compressor and to cover the boiler's auxiliaries.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"13 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":"130372798","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602568
E.M. Kuznetsov, V.P. Klimanov
The article examines the effectiveness of the scheduling algorithm for solving the problem of increasing the efficiency of the operation of corporate information and computer networks based on the use of priority information processing models. The possibility of increasing the efficiency is caused by the analysis of the features of properties and characteristics of the considered network in various modes of operation, which are obtained at the modeling stage. The order of servicing of information flows of different types, determined by the introduction of priorities, allows to reduce the average waiting time for system operation and loss due to waiting. The task of analyzing of the efficiency of priority systems for the transmission and processing of information in complex information and computing systems is the perspective application-oriented task due to use of an effective dispatch algorithm.
{"title":"Efficiency of an Algorithm of Scheduling","authors":"E.M. Kuznetsov, V.P. Klimanov","doi":"10.1109/FAREASTCON.2018.8602568","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602568","url":null,"abstract":"The article examines the effectiveness of the scheduling algorithm for solving the problem of increasing the efficiency of the operation of corporate information and computer networks based on the use of priority information processing models. The possibility of increasing the efficiency is caused by the analysis of the features of properties and characteristics of the considered network in various modes of operation, which are obtained at the modeling stage. The order of servicing of information flows of different types, determined by the introduction of priorities, allows to reduce the average waiting time for system operation and loss due to waiting. The task of analyzing of the efficiency of priority systems for the transmission and processing of information in complex information and computing systems is the perspective application-oriented task due to use of an effective dispatch algorithm.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"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":"114548518","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602730
V. Krutikov, O. Indenko, E. Chernova
Autoregression models use a linear combination of previous time series as a prediction. This article suggests a prediction algorithm based on creating approximation of prior series sample as a linear combination of an existing set of samples. Here, prediction is an obtained linear combination of the continuations of approximating samples. The problem of finding the coefficients of the linear combinations is written as an A. N. Tikhonov's extremum problem of least-squares with a regularizer, which allows creating a system of equations for evaluating the unknown parameters. Solving the system of equations is carried out using the singular spectrum analysis (SSA). Regularity helps to increase the solving quality in noisy conditions. After isolating the singular components of the system of equations matrix, the solution can be obtained in analytical form. The parameters governing the quality of the solution are the regularization coefficients and the set of components of the singular decomposition. The prediction efficiency index is estimated based on the discrepancies between the prediction and actual values of the series for the given depth of the prediction. The prediction model search is done by choosing the best model on the set of values of the regularization parameter with different sets of eigenvectors that determine the solution space. The proposed method was tested on different time series. The examples of prediction of the energy market indicators prove its effectiveness.
自回归模型使用先前时间序列的线性组合作为预测。本文提出了一种基于将先验序列样本近似为现有样本集的线性组合的预测算法。在这里，预测是近似样本的延拓得到的线性组合。寻找线性组合系数的问题被写成a . N. Tikhonov带正则化器的最小二乘极值问题，它允许创建一个方程组来评估未知参数。利用奇异谱分析(SSA)对方程组进行求解。规则性有助于提高噪声条件下的求解质量。在分离出方程组矩阵的奇异分量后，可以得到解析解。控制解质量的参数是正则化系数和奇异分解的分量集。预测效率指数是根据给定预测深度下序列预测值与实际值的差异来估计的。预测模型搜索是通过在正则化参数的一组值上选择最佳模型来完成的，这些参数具有确定解空间的不同特征向量集。在不同的时间序列上对该方法进行了测试。能源市场指标的预测实例证明了该方法的有效性。
{"title":"Predictive Model of Energy Market Indicators Based on Continued Approximation for Series Sample Prior to the Moment of Prediction","authors":"V. Krutikov, O. Indenko, E. Chernova","doi":"10.1109/FAREASTCON.2018.8602730","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602730","url":null,"abstract":"Autoregression models use a linear combination of previous time series as a prediction. This article suggests a prediction algorithm based on creating approximation of prior series sample as a linear combination of an existing set of samples. Here, prediction is an obtained linear combination of the continuations of approximating samples. The problem of finding the coefficients of the linear combinations is written as an A. N. Tikhonov's extremum problem of least-squares with a regularizer, which allows creating a system of equations for evaluating the unknown parameters. Solving the system of equations is carried out using the singular spectrum analysis (SSA). Regularity helps to increase the solving quality in noisy conditions. After isolating the singular components of the system of equations matrix, the solution can be obtained in analytical form. The parameters governing the quality of the solution are the regularization coefficients and the set of components of the singular decomposition. The prediction efficiency index is estimated based on the discrepancies between the prediction and actual values of the series for the given depth of the prediction. The prediction model search is done by choosing the best model on the set of values of the regularization parameter with different sets of eigenvectors that determine the solution space. The proposed method was tested on different time series. The examples of prediction of the energy market indicators prove its effectiveness.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"3 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":"114552923","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602905
V. Ryazhskih, D. Konovalov, A. V. Nikolenko
Development of energy-saturated technical systems is characterized by constructive compactness, for example, radio electronic devices, mobile power plants, ground control systems for space complexes, etc. There is an intensively cooling problem of heat-generating surfaces. The development of new types of porous heat exchangers and the prediction of their operating modes is a crucial task when creating stable heat removal systems. A model of a hybrid recuperative porous heat exchanger is developed, which differs from the already known models with the availability of an additional circuit for cooling external walls. The thermal and hydraulic characteristics in porous heat exchangers are tested using the example of planar geometry under conditions of intense heat generation from compact surfaces. Within the framework of the phenomenological theory, a mathematical model of convective heat transfer in a porous heat-exchange element for the conjugate Darcy-Brinkman-Forchheimer equations and Schumann equations is proposed for thermal boundary conditions of the first and second order. An exact analytical solution of the hydrodynamic and thermal problems is obtained. The influence of porosity, permeability, Darcy and Reynolds numbers on the thermal and hydraulic conditions in a porous compact heat exchanger was evaluated. A comparative analysis showed the efficiency of a double-circuit cooling system with a porous regenerative heat exchanger. The rational ranges of hydraulic and thermal characteristics of the developed porous compact heat exchangers are determined taking into account the presence of the second circuit, critical operating modes are tested. The variant of realization of a double-circuit cooling system is proposed.
{"title":"Heat Transfer Model Analysis of a Hybrid Porous Compact Heat Exchanger","authors":"V. Ryazhskih, D. Konovalov, A. V. Nikolenko","doi":"10.1109/FAREASTCON.2018.8602905","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602905","url":null,"abstract":"Development of energy-saturated technical systems is characterized by constructive compactness, for example, radio electronic devices, mobile power plants, ground control systems for space complexes, etc. There is an intensively cooling problem of heat-generating surfaces. The development of new types of porous heat exchangers and the prediction of their operating modes is a crucial task when creating stable heat removal systems. A model of a hybrid recuperative porous heat exchanger is developed, which differs from the already known models with the availability of an additional circuit for cooling external walls. The thermal and hydraulic characteristics in porous heat exchangers are tested using the example of planar geometry under conditions of intense heat generation from compact surfaces. Within the framework of the phenomenological theory, a mathematical model of convective heat transfer in a porous heat-exchange element for the conjugate Darcy-Brinkman-Forchheimer equations and Schumann equations is proposed for thermal boundary conditions of the first and second order. An exact analytical solution of the hydrodynamic and thermal problems is obtained. The influence of porosity, permeability, Darcy and Reynolds numbers on the thermal and hydraulic conditions in a porous compact heat exchanger was evaluated. A comparative analysis showed the efficiency of a double-circuit cooling system with a porous regenerative heat exchanger. The rational ranges of hydraulic and thermal characteristics of the developed porous compact heat exchangers are determined taking into account the presence of the second circuit, critical operating modes are tested. The variant of realization of a double-circuit cooling system is proposed.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"124 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":"116048871","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602593
K. Bormotin, W. Aung
Forming in the creep mode of articles from sheets and panels is considered with the help of reconfigurable rods punch, which allows to change the shape of the workpiece. The experimental results allow one to identify the operation of scattering with the damage parameter. In this case, forming processes allow to control the level of material damage, to coordinate with technological limitations, due to the optimal choice of the deformational path in time. The problem of deformation in creep with contact conditions is solved by the finite element method. As the optimization criterion, the dissipation work accumulated in the process of deformation is adopted. Taking into account the time-discrete equations of the step-by-step integration procedure and the minimized functional, a discrete optimal control problem is formulated. In this formulation, the Bellman function is constructed and the problem is solved by the method of dynamic programming. An algorithm for calculating the rational motion of rods during forming is presented. This algorithm is implemented in the system MSC.Marc, MSC.Patran.
{"title":"Optimization of Panel Forming Processes in Creep Mode Using CAE-Technologies","authors":"K. Bormotin, W. Aung","doi":"10.1109/FAREASTCON.2018.8602593","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602593","url":null,"abstract":"Forming in the creep mode of articles from sheets and panels is considered with the help of reconfigurable rods punch, which allows to change the shape of the workpiece. The experimental results allow one to identify the operation of scattering with the damage parameter. In this case, forming processes allow to control the level of material damage, to coordinate with technological limitations, due to the optimal choice of the deformational path in time. The problem of deformation in creep with contact conditions is solved by the finite element method. As the optimization criterion, the dissipation work accumulated in the process of deformation is adopted. Taking into account the time-discrete equations of the step-by-step integration procedure and the minimized functional, a discrete optimal control problem is formulated. In this formulation, the Bellman function is constructed and the problem is solved by the method of dynamic programming. An algorithm for calculating the rational motion of rods during forming is presented. This algorithm is implemented in the system MSC.Marc, MSC.Patran.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","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":"116169659","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602502
A. Onischenko, A. N. Merschikov
In last decades on of Russia Railways are phased implementation and upgrade systems of technical diagnostics and monitoring railway automation and telemechanics. The implementation systems of technical diagnostics and monitoring allows to move from the regulatory type of maintenance, which takes a significant time of operating personnel to factual, which will reduce operating costs. Due to fact that maintenance by condition is reduce to a minimum interference in operation of railway automation and remote control, it is possible to reduce number so-called post-prevention failures. For ensuring continuity and safety transportation process system of power supply devices railway automatic equipment and telemechanics solve important and responsible problems from which it is possible to distinguish providing uninterrupted, that is continuous in time, power supply systems of railway automatic equipment and telemechanics and devices with quality of electric power, necessary for their reliable work. As constructive, circuit and technological capabilities of increase in reliability of systems are limited, a natural way of elimination of this shortcoming is development methods and control devices working capacity and search malfunctions of equipment. Thanks to the microprocessor systems introduced on Russian Railways opportunities for solution problems of diagnosing have extended. In article is considered device, principle of action and functionality of developed station six-phase registrar of parameters of quality of power supply.
{"title":"Registrar the Parameters of Power Supply Quality","authors":"A. Onischenko, A. N. Merschikov","doi":"10.1109/FAREASTCON.2018.8602502","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602502","url":null,"abstract":"In last decades on of Russia Railways are phased implementation and upgrade systems of technical diagnostics and monitoring railway automation and telemechanics. The implementation systems of technical diagnostics and monitoring allows to move from the regulatory type of maintenance, which takes a significant time of operating personnel to factual, which will reduce operating costs. Due to fact that maintenance by condition is reduce to a minimum interference in operation of railway automation and remote control, it is possible to reduce number so-called post-prevention failures. For ensuring continuity and safety transportation process system of power supply devices railway automatic equipment and telemechanics solve important and responsible problems from which it is possible to distinguish providing uninterrupted, that is continuous in time, power supply systems of railway automatic equipment and telemechanics and devices with quality of electric power, necessary for their reliable work. As constructive, circuit and technological capabilities of increase in reliability of systems are limited, a natural way of elimination of this shortcoming is development methods and control devices working capacity and search malfunctions of equipment. Thanks to the microprocessor systems introduced on Russian Railways opportunities for solution problems of diagnosing have extended. In article is considered device, principle of action and functionality of developed station six-phase registrar of parameters of quality of power supply.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"6 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":"121558106","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602536
O. Y. Kurganova, I. Kudinov, T. Gavrilova
The results of experimental and theoretical studies of the T-100-130 steam turbine high-pressure cylinder (HPC) in the starting mode are considered. Based on the experimental data on the temperature of the outer surface of the metal wall of the shell, using the approximate analytical solution of the heat conduction problem for a two-layer turbine wall (thermal insulation - turbine body), the heat transfer coefficients on the inner surface of the wall (the vapor side) were found by solving the inverse heat conduction problem. The heat transfer coefficients obtained this way were used to determine the temperature condition of the turbine HPC by the wall thickness and thermal insulation in various sections of the body. Using the results of calculations of the turbine HPC body temperature condition by the finite element method, the temperature stresses in the longitudinal section of the body were found. Their analysis allows concluding that the magnitude of the temperature stresses does not exceed the tensile strength limit for a given material. In this case, the stresses arising from the vapor pressure forces and from the non-uniformity of the temperature distribution in the circumferential direction were not taken into account.
{"title":"Study of the Temperature State of the T-100-130 Steam Turbine High-Pressure Cylinder by Experimental and Theoretical Methods","authors":"O. Y. Kurganova, I. Kudinov, T. Gavrilova","doi":"10.1109/FAREASTCON.2018.8602536","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602536","url":null,"abstract":"The results of experimental and theoretical studies of the T-100-130 steam turbine high-pressure cylinder (HPC) in the starting mode are considered. Based on the experimental data on the temperature of the outer surface of the metal wall of the shell, using the approximate analytical solution of the heat conduction problem for a two-layer turbine wall (thermal insulation - turbine body), the heat transfer coefficients on the inner surface of the wall (the vapor side) were found by solving the inverse heat conduction problem. The heat transfer coefficients obtained this way were used to determine the temperature condition of the turbine HPC by the wall thickness and thermal insulation in various sections of the body. Using the results of calculations of the turbine HPC body temperature condition by the finite element method, the temperature stresses in the longitudinal section of the body were found. Their analysis allows concluding that the magnitude of the temperature stresses does not exceed the tensile strength limit for a given material. In this case, the stresses arising from the vapor pressure forces and from the non-uniformity of the temperature distribution in the circumferential direction were not taken into account.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"48 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":"122049694","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602691
A. Egorov
Mathematical modeling of the start-up of the hydrogen-oxygen steam generator from the cold state has been carried out. Analysis of the temperature mode and the resulting thermal stresses in the walls of the combustion chamber is performed. The finite element method using the ANSYS software was used to assess thermodynamic parameters of the combustion products and the cooling water, the temperature of the walls in the combustion chamber and modeling of the combustion process. Assessment of the temperature mode of the walls in the combustion chamber shows that when using water-cooling and chromium bronze as the material, the maximum wall temperature on the combustion products is significantly lower than the melting point. Optimization of the start-up schedule allows to reduce the arising thermal stresses from 600 MPa to 250 MPa per cycle. An approximate resource of the hydrogen-oxygen steam generator for a given design of the combustion chamber was determined for a daily start-stop according to the optimized schedule, which amounted to 1-1.5 years or 365-550 start-ups
{"title":"Modeling Thermocyclic Loads of The Hydrogen-Oxygen Steam Generator Using the Ansys Software Complex","authors":"A. Egorov","doi":"10.1109/FAREASTCON.2018.8602691","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602691","url":null,"abstract":"Mathematical modeling of the start-up of the hydrogen-oxygen steam generator from the cold state has been carried out. Analysis of the temperature mode and the resulting thermal stresses in the walls of the combustion chamber is performed. The finite element method using the ANSYS software was used to assess thermodynamic parameters of the combustion products and the cooling water, the temperature of the walls in the combustion chamber and modeling of the combustion process. Assessment of the temperature mode of the walls in the combustion chamber shows that when using water-cooling and chromium bronze as the material, the maximum wall temperature on the combustion products is significantly lower than the melting point. Optimization of the start-up schedule allows to reduce the arising thermal stresses from 600 MPa to 250 MPa per cycle. An approximate resource of the hydrogen-oxygen steam generator for a given design of the combustion chamber was determined for a daily start-stop according to the optimized schedule, which amounted to 1-1.5 years or 365-550 start-ups","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"11 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":"123946743","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}
Pub Date : 2018-10-01DOI: 10.1109/FAREASTCON.2018.8602805
A. I. Kireeva, I. Rudenok
We solved the problem of propagation of plane waves in an artificial gradient chiral medium with an anisotropic chirality coefficient. We studied changes in the polarization vector of a normal wave, especially in the vicinity of the bifurcation point. The computational experiment proved that by varying the gradient parameters of a smoothly anisotropic meta-environment, it is possible to synthesize frequency-polarization-selective filters and polarization converters controlled by the given quality criterion.
{"title":"Distribution of Intrinsic Hybrid Modes in a Waveguide Structure Based on a Gradient Bianisotropic Metamaterial","authors":"A. I. Kireeva, I. Rudenok","doi":"10.1109/FAREASTCON.2018.8602805","DOIUrl":"https://doi.org/10.1109/FAREASTCON.2018.8602805","url":null,"abstract":"We solved the problem of propagation of plane waves in an artificial gradient chiral medium with an anisotropic chirality coefficient. We studied changes in the polarization vector of a normal wave, especially in the vicinity of the bifurcation point. The computational experiment proved that by varying the gradient parameters of a smoothly anisotropic meta-environment, it is possible to synthesize frequency-polarization-selective filters and polarization converters controlled by the given quality criterion.","PeriodicalId":177690,"journal":{"name":"2018 International Multi-Conference on Industrial Engineering and Modern Technologies (FarEastCon)","volume":"494 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":"125536024","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：