Pub Date : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086794
N. N. Kisel, A. A. Vaganova, A. I. Panychev
Microwave energy can be used for heating, drying, pasteurization and thawing of different foods, as this technology is suitable for processing various dielectric materials, efficient and environmentally friendly. This paper is devoted to simulation of energy absorption in a liquid pasteurizer. The device consists of a rectangular waveguide with hollow dielectric tubes passing through it. Flowing through the tubes, the liquid absorbs microwave energy and heats up. The electric field distribution in the waveguide and specific absorbed power are simulated for various parameters of the device using a specialized computer-aided design software. Based on performed calculations, the angle of inclination of the tubes equal to 43° is optimal. It is not possible to achive an even power distribution across all the tubes, and the power absorption in the first and last tubes differs by about 20 times. However, the liquid flows through all tubes consequentially, therefore, the resulting unevenness is acceptable. The evaluation of precision of the results is performed.
{"title":"Simulation of energy absorption in a device for microwave heating of liquid","authors":"N. N. Kisel, A. A. Vaganova, A. I. Panychev","doi":"10.1109/REEPE57272.2023.10086794","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086794","url":null,"abstract":"Microwave energy can be used for heating, drying, pasteurization and thawing of different foods, as this technology is suitable for processing various dielectric materials, efficient and environmentally friendly. This paper is devoted to simulation of energy absorption in a liquid pasteurizer. The device consists of a rectangular waveguide with hollow dielectric tubes passing through it. Flowing through the tubes, the liquid absorbs microwave energy and heats up. The electric field distribution in the waveguide and specific absorbed power are simulated for various parameters of the device using a specialized computer-aided design software. Based on performed calculations, the angle of inclination of the tubes equal to 43° is optimal. It is not possible to achive an even power distribution across all the tubes, and the power absorption in the first and last tubes differs by about 20 times. However, the liquid flows through all tubes consequentially, therefore, the resulting unevenness is acceptable. The evaluation of precision of the results is performed.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132669422","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086820
D. Loktev, L. Illarionova, A. Loktev
In this paper, an approach to automating the conduct of behavioral audit of transport safety is considered. Also, it is proposed to use cameras and electromyographic sensors directly attached to an employee of the organization - to monitor his condition in real time. In a similar way, it is possible to determine the emotional state of transport operators, their fatigue by analyzing a series of received images of a person and read signals from wearable sensors when directly in the process of performing a work task. The strongest emotions, such as happiness, surprise, as well as determining a person’s fatigue, can be determined by individual segments of a person’s image - the state of his eyes, mouth, eyebrows, head position. It is possible to increase the accuracy of determining the operator’s reactions, for example, by using electromyographic sensors installed on the operator’s face and hands.
{"title":"Automation of the Behavioral Safety Audit of a Transport Operator Based on the Recognition of His Emotional State in Real Time","authors":"D. Loktev, L. Illarionova, A. Loktev","doi":"10.1109/REEPE57272.2023.10086820","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086820","url":null,"abstract":"In this paper, an approach to automating the conduct of behavioral audit of transport safety is considered. Also, it is proposed to use cameras and electromyographic sensors directly attached to an employee of the organization - to monitor his condition in real time. In a similar way, it is possible to determine the emotional state of transport operators, their fatigue by analyzing a series of received images of a person and read signals from wearable sensors when directly in the process of performing a work task. The strongest emotions, such as happiness, surprise, as well as determining a person’s fatigue, can be determined by individual segments of a person’s image - the state of his eyes, mouth, eyebrows, head position. It is possible to increase the accuracy of determining the operator’s reactions, for example, by using electromyographic sensors installed on the operator’s face and hands.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131834748","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086803
Ekaterina O. Romanova, Elizaveta Leontyeva, V. Kapravchuk, T. Goidina, A. Briko, A. Kobelev
The work is devoted to the study of the effect of pinning on morphofunctional changes of forearm tissues. The studies were carried out with healthy volunteers using a special laboratory complex, the main components of which are a precision motion bench in a design with an ultrasound sensor and force transducers. The paper shows the dependences of changes in thickness of inner layers of the forearm, namely skin-fat and muscle layers, on movement and force of the ultrasound transducer clamping. Electrical impedance signal is one of the promising methods of controlling bionic devices. To exclude the influence of changes in skin-fat layer thickness on electrical impedance signal, it is necessary to find the value of electrode systems pressing force, at which the thickness of the skin-fat layer will decrease and remain constant. In this case, it is possible to obtain a repeatable pattern of electrical impedance signal, associated directly with muscle contraction. As a result of the studies, it was found that skin-fat layer elasticity is less than that of the muscle layer, because when the pressing force increases, the skin-fat layer thins first, after which the muscle layer begins to thin. The pressure exerted by the electrode system on the forearm and the associated changes in the thickness of the forearm layers should be considered when developing proprioceptive control systems for bionic devices based on electrical impedance signal registration.
{"title":"Pressure influence on morphological and functional changes in forearm tissues research","authors":"Ekaterina O. Romanova, Elizaveta Leontyeva, V. Kapravchuk, T. Goidina, A. Briko, A. Kobelev","doi":"10.1109/REEPE57272.2023.10086803","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086803","url":null,"abstract":"The work is devoted to the study of the effect of pinning on morphofunctional changes of forearm tissues. The studies were carried out with healthy volunteers using a special laboratory complex, the main components of which are a precision motion bench in a design with an ultrasound sensor and force transducers. The paper shows the dependences of changes in thickness of inner layers of the forearm, namely skin-fat and muscle layers, on movement and force of the ultrasound transducer clamping. Electrical impedance signal is one of the promising methods of controlling bionic devices. To exclude the influence of changes in skin-fat layer thickness on electrical impedance signal, it is necessary to find the value of electrode systems pressing force, at which the thickness of the skin-fat layer will decrease and remain constant. In this case, it is possible to obtain a repeatable pattern of electrical impedance signal, associated directly with muscle contraction. As a result of the studies, it was found that skin-fat layer elasticity is less than that of the muscle layer, because when the pressing force increases, the skin-fat layer thins first, after which the muscle layer begins to thin. The pressure exerted by the electrode system on the forearm and the associated changes in the thickness of the forearm layers should be considered when developing proprioceptive control systems for bionic devices based on electrical impedance signal registration.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114627723","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086740
G. Ovseenko, R. Kashaev, O. Kozelkov, T. Filimonova, T. S. Evdokimova, Aliya M. Mardanova
The article deals with studies of measurements of physico-chemical characteristics by a proton magnetic resonance relaxometer by methods of veracity control and operation control. The choice of the neural network structure is justified, the algorithm of training the neural network in the Statistica 10 mathematical package is described according to the following parameters: spin-spin relaxation times, proton population and amplitude of spin-echo signals, which carry out a multiparametric analysis of fluid characteristics in digital intelligent deposits. This article solves the problem of increasing the information veracity of the complex of multiparametric control of the proton magnetic resonance relaxometer as part of the device-software package by developing and applying methods, algorithms and software based on them to evaluate the operating modes of the nodes of the complex of multiparametric control based on the use of artificial neural network technology.
{"title":"Improving the information veracity of the complex of multiparametric control of the relaxometer based on a neural network","authors":"G. Ovseenko, R. Kashaev, O. Kozelkov, T. Filimonova, T. S. Evdokimova, Aliya M. Mardanova","doi":"10.1109/REEPE57272.2023.10086740","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086740","url":null,"abstract":"The article deals with studies of measurements of physico-chemical characteristics by a proton magnetic resonance relaxometer by methods of veracity control and operation control. The choice of the neural network structure is justified, the algorithm of training the neural network in the Statistica 10 mathematical package is described according to the following parameters: spin-spin relaxation times, proton population and amplitude of spin-echo signals, which carry out a multiparametric analysis of fluid characteristics in digital intelligent deposits. This article solves the problem of increasing the information veracity of the complex of multiparametric control of the proton magnetic resonance relaxometer as part of the device-software package by developing and applying methods, algorithms and software based on them to evaluate the operating modes of the nodes of the complex of multiparametric control based on the use of artificial neural network technology.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117100693","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086757
A. Borzov, K. Likhoedenko, V. B. Suchkov, Maxim V. Artyushkin, Grigory M. Seregin
In this paper, method of designing a compact ultra-wideband microstrip spiral antenna for an onboard radar is described. The advantages of using microstrip spiral antenna in ground-penetrating radars are presented. Parametric researches of the characteristics of a spiral antenna have been carried out. Features of a spiral antenna such as small weight and size are substantiated. The synthesis of the antenna design in modern CAD systems such as Antenna Magus, FEKO is given. A new technique of microstrip spiral antenna's digital simulation on the base of optimization of standing wave ratio and its pattern are described. The experimental results of standing wave ratio’s measuring of the developed an microstrip spiral antenna are presented. Comparison of simulation results and experimental data in frequency band from 1 to 4.5 GHz is shown.
{"title":"Design of compact ultra-wideband spiral antenna for ground-penetrating radar","authors":"A. Borzov, K. Likhoedenko, V. B. Suchkov, Maxim V. Artyushkin, Grigory M. Seregin","doi":"10.1109/REEPE57272.2023.10086757","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086757","url":null,"abstract":"In this paper, method of designing a compact ultra-wideband microstrip spiral antenna for an onboard radar is described. The advantages of using microstrip spiral antenna in ground-penetrating radars are presented. Parametric researches of the characteristics of a spiral antenna have been carried out. Features of a spiral antenna such as small weight and size are substantiated. The synthesis of the antenna design in modern CAD systems such as Antenna Magus, FEKO is given. A new technique of microstrip spiral antenna's digital simulation on the base of optimization of standing wave ratio and its pattern are described. The experimental results of standing wave ratio’s measuring of the developed an microstrip spiral antenna are presented. Comparison of simulation results and experimental data in frequency band from 1 to 4.5 GHz is shown.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116206882","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086880
N. Bykov, Maksim A. Kostrov
This paper proposes a computer simulation model of a heterogeneous traffic flow which consists of personal and public transport i.e., buses. The road topology is multi-lane and allows a personal vehicle to change lanes. The time evolution of the system is based on Nagel-Schreckenberg cellular automata model. This work illustrates the impact of the location of bus stops on bus traffic characteristics. The new definition of free flow for buses is given. Simulations have shown that the incorporation of buses in a mixed traffic flow has a positive impact on traffic flow. An increase in the number of buses leads to an increase in the average speed of personal cars. However, the average speed of all vehicles has a maximum at a certain ratio between passengers of buses and personal cars. Since the position of this maximum is not the same as for individual types of agents (buses or personal vehicles) this allows one to introduce the social dilemma.
{"title":"Social Dilemma in a Heterogeneous Traffic Flow Consisting of Personal and Public Transport","authors":"N. Bykov, Maksim A. Kostrov","doi":"10.1109/REEPE57272.2023.10086880","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086880","url":null,"abstract":"This paper proposes a computer simulation model of a heterogeneous traffic flow which consists of personal and public transport i.e., buses. The road topology is multi-lane and allows a personal vehicle to change lanes. The time evolution of the system is based on Nagel-Schreckenberg cellular automata model. This work illustrates the impact of the location of bus stops on bus traffic characteristics. The new definition of free flow for buses is given. Simulations have shown that the incorporation of buses in a mixed traffic flow has a positive impact on traffic flow. An increase in the number of buses leads to an increase in the average speed of personal cars. However, the average speed of all vehicles has a maximum at a certain ratio between passengers of buses and personal cars. Since the position of this maximum is not the same as for individual types of agents (buses or personal vehicles) this allows one to introduce the social dilemma.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123300481","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086708
Noha M. Tawfik, Noha H. El-Amary, L. Nasrat
The Wide Area Monitoring System (WAMS) is an effective monitoring system that must be used in the electricity system due to the ever-increasing issues it faces. Considering that Phasor Measurement Units (PMUs) can deliver synchronized Phasor Measurement Units of voltages and currents in real-time at widely various locations is important. This paper studies the optimal allocation of PMUs in order to achieve a fully operable system utilizing Discrete Water Cycle Optimization (DWCO) with minimal number of PMUs and initial investment. In radial power systems the PMUs allocation can be applied directly. On the other hand, PMUs allocation on power system mesh, loop network needs some prearrangement before starting the process. One of the mythologies, which can be used in preparing the system is the tree search method using shortest path. The PMUs optimal allocation takes place utilizing two different methodologies which are tree search method with shortest path and discrete water cycle algorithm. These algorithms were tested on IEEE-14 and IEEE-30. As the PMUs number is reduced, the data capacity will be reduced. The models’ results are satisfied specially for Water Cycle Optimization.
{"title":"Phasor Measurement Unit Optimal Allocation Utilizing Discrete Water Cycle Optimization","authors":"Noha M. Tawfik, Noha H. El-Amary, L. Nasrat","doi":"10.1109/REEPE57272.2023.10086708","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086708","url":null,"abstract":"The Wide Area Monitoring System (WAMS) is an effective monitoring system that must be used in the electricity system due to the ever-increasing issues it faces. Considering that Phasor Measurement Units (PMUs) can deliver synchronized Phasor Measurement Units of voltages and currents in real-time at widely various locations is important. This paper studies the optimal allocation of PMUs in order to achieve a fully operable system utilizing Discrete Water Cycle Optimization (DWCO) with minimal number of PMUs and initial investment. In radial power systems the PMUs allocation can be applied directly. On the other hand, PMUs allocation on power system mesh, loop network needs some prearrangement before starting the process. One of the mythologies, which can be used in preparing the system is the tree search method using shortest path. The PMUs optimal allocation takes place utilizing two different methodologies which are tree search method with shortest path and discrete water cycle algorithm. These algorithms were tested on IEEE-14 and IEEE-30. As the PMUs number is reduced, the data capacity will be reduced. The models’ results are satisfied specially for Water Cycle Optimization.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123514663","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086897
Andrey A. Ivantsov, Elizaveta A. Mironova, M. Ryakhina
This paper considers the possibility of import substitution and technical characteristics improvement of the sensor for the gas analyzer and the creation of a module adapter for the domestic producted gas sensor prototype IoffeGAS42. The conducted research shows good prospects for the use of domestic element base for the design of small-sized gas analyzers. The practically obtained transfer function of the optical gas sensor takes into account the temperature drift. Analysis of the data obtained as a result of the tests makes it possible to estimate the expected accuracy of measurements that can be provided by non-dispersive infrared gas sensors of various configurations when measuring the ambient temperature. Novel sensor temperature calibration method was introduced. The results of the development of the module adapter prototype as a part of the dimensional product prototype and the analysis of the test results are presented.
{"title":"Burning Gas Sensor Module Adapter Development and Test Operation Results Processing","authors":"Andrey A. Ivantsov, Elizaveta A. Mironova, M. Ryakhina","doi":"10.1109/REEPE57272.2023.10086897","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086897","url":null,"abstract":"This paper considers the possibility of import substitution and technical characteristics improvement of the sensor for the gas analyzer and the creation of a module adapter for the domestic producted gas sensor prototype IoffeGAS42. The conducted research shows good prospects for the use of domestic element base for the design of small-sized gas analyzers. The practically obtained transfer function of the optical gas sensor takes into account the temperature drift. Analysis of the data obtained as a result of the tests makes it possible to estimate the expected accuracy of measurements that can be provided by non-dispersive infrared gas sensors of various configurations when measuring the ambient temperature. Novel sensor temperature calibration method was introduced. The results of the development of the module adapter prototype as a part of the dimensional product prototype and the analysis of the test results are presented.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123650567","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086893
D. Loktev, A. Loktev, V. Korolev, Andrey A. Linenko
A method to recognize vehicles on an image and to determine their dynamic characteristics is considered. Control of timely determined characteristics will allow detecting violations of vehicles, including excessive vehicle weight, which leads to increased wear and damage to the roadway. For object detection the convolutional neural network is used. Hough and Canny detectors are used to determine object boundaries and wheel axles. The used vehicle model with two axles in detail is described. After detecting and determining the number of wheel axles of the vehicle, a model of vertical oscillations of the vehicle is selected by the passive method of image analysis, and based on the obtained geometric and kinematic parameters, the dynamic characteristics of the vehicle are determined.
{"title":"Determining the Dynamic Characteristics of Moving Vehicles Using Image Blur Analysis","authors":"D. Loktev, A. Loktev, V. Korolev, Andrey A. Linenko","doi":"10.1109/REEPE57272.2023.10086893","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086893","url":null,"abstract":"A method to recognize vehicles on an image and to determine their dynamic characteristics is considered. Control of timely determined characteristics will allow detecting violations of vehicles, including excessive vehicle weight, which leads to increased wear and damage to the roadway. For object detection the convolutional neural network is used. Hough and Canny detectors are used to determine object boundaries and wheel axles. The used vehicle model with two axles in detail is described. After detecting and determining the number of wheel axles of the vehicle, a model of vertical oscillations of the vehicle is selected by the passive method of image analysis, and based on the obtained geometric and kinematic parameters, the dynamic characteristics of the vehicle are determined.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122620225","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 : 2023-03-16DOI: 10.1109/REEPE57272.2023.10086934
M. Purdin, Renata Magomedova
This paper presents a statement and solution to the problem of heat losses in a ground heat accumulator. A numerical solution to the problem is presented using the finite difference method on an uneven grid along the horizontal axis and uniform in depth, approximation of the differential heat equation according to the scheme with the second order of accuracy in the coordinate, and direct reduced Gaussian method for solving a system of linear equations. The number of grid steps is selected automatically according to the Runge rule. The results of numerical simulation are obtained and presented. An assessment of the accuracy of the calculation based on the external heat balance was carried out. The value of heat losses and the conditional radius of soil heating, which is subject to excess heating from the heat accumulator, is determined.
{"title":"Stationary Component of Heat Losses from Ground Heat Accumulators and Heat Exchangers","authors":"M. Purdin, Renata Magomedova","doi":"10.1109/REEPE57272.2023.10086934","DOIUrl":"https://doi.org/10.1109/REEPE57272.2023.10086934","url":null,"abstract":"This paper presents a statement and solution to the problem of heat losses in a ground heat accumulator. A numerical solution to the problem is presented using the finite difference method on an uneven grid along the horizontal axis and uniform in depth, approximation of the differential heat equation according to the scheme with the second order of accuracy in the coordinate, and direct reduced Gaussian method for solving a system of linear equations. The number of grid steps is selected automatically according to the Runge rule. The results of numerical simulation are obtained and presented. An assessment of the accuracy of the calculation based on the external heat balance was carried out. The value of heat losses and the conditional radius of soil heating, which is subject to excess heating from the heat accumulator, is determined.","PeriodicalId":356187,"journal":{"name":"2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125553761","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}
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