The Normalization Methods of the Static Geomagnetic Field Inside Houses

Rozov, V. Yu.; Zavalnyi, A. V.; Zolotov, S.; Грецких, Светлана Владимировна

doi:10.20998/2074-272x.2015.2.07

Cited by 10 publications

(7 citation statements)

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“…The mechanism of biotropic attenuation of the natural static geomagnetic field in the premises of modern residential buildings, which was caused by the magnetization of their steel structural elements, was for the first time investigated. Recommendations on the design of «magnetically clean» residential and public buildings, which have no negative influence on the population, including the use of the construction of residential buildings of special low-magnetic steel with a relative magnetic permeability of not more than 70 units instead of standard rolled steel with magnetic permeability of about 300 units are developed [24][25][26].…”

Section: Institute Of Ionosphere Of the National Academy Of Sciences mentioning

confidence: 99%

To the 100th Anniversary of the National Academy of Sciences of Ukraine – The Cradle of Domestic Science and Technology

Баранов¹,

Rozov²,

Sokol³

2018

Elektroteh. elektromeh.

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Purpose. Preparation of short scientifically-historical essay about creation and development of the National Academy of Sciences (NAS) of Ukraine. Methodology. Known scientific methods of collection, analysis and analytical treatment of scientific and technical information, touching creation and development of NAS of Ukraine and resulted in scientific monographs, journals and internet-reports. Results. A short scientifically-historical essay is presented about creation and development of NAS of Ukraine. The main scientific achievements of NAS of Ukraine in various fields of science are presented. It is pointed that a large scientifically-organizational contribution to these achievements brought by present President of NAS of Ukraine, Academician B.Ye. Paton, his 100th Birthday (27 November, 2018) coincides surprising appearance with the 100th anniversary of NAS of Ukraine. An important role of NAS of Ukraine in the development of society and international scientific and technical cooperation was noted. The results of scientific research, achieved over the past few years by the Institute of Technical Problems of Magnetism of the NAS of Ukraine (Kharkiv), as well as by the Institute of Ionosphere of the NAS and Departments of education and science (DES) of Ukraine (Kharkiv) are briefly presented. The research cooperation in the field of electrical engineering of NTU «KhPI» with scientific institutions of the NAS of Ukraine is highlighted. Originality. Certain systematization is executed of known from scientific journals and other mass of scientific and technical materials, touching the results of activity of research workers of institutes of NAS of Ukraine in the last few years. Practical value. Scientific popularization and deepening for the students of higher school, engineer-technical and scientific workers, working in the different sectors of economy of country, scientific and technical knowledge in an area of physical-technical and mathematical sciences, chemical and biological sciences, and also social and humanitarian sciences, extending their scientific range of interests and further development of scientific and technical progress in society. References 28, figures 10.

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Section: Institute Of Ionosphere Of the National Academy Of Sciences mentioning

confidence: 99%

To the 100th Anniversary of the National Academy of Sciences of Ukraine – The Cradle of Domestic Science and Technology

Баранов¹,

Rozov²,

Sokol³

2018

Elektroteh. elektromeh.

Self Cite

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“…Existing high-voltage overhead power lines, located in residential areas of most developed countries, are the main sources of magnetic field of industrial frequency, which has a massive effect on the population and is more dangerous to health than the electric field [1][2][3][4]. Experts of the World Health Organization in the late 20th century discovered the carcinogenic properties of the magnetic field of overhead power lines with its weak but long-lasting effects on humans.…”

Section: Introductionmentioning

confidence: 99%

Reduction of magnetic field level in residential old buildings from overhead power lines by means of active screening

Kuznetsov

Nikitina

Bovdui

et al. 2021

Electrical Engineering & Electromechanics

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Aim. Reduction of the magnetic field induction to the level of modern sanitary standards by means of active screening in residential old buildings which are located near existing typical overhead power lines are considered. Active shielding of the magnetic field inside a single-storey and multi-storey building is considered. During the design the number, configurations, spatial arrangement of the shielding windings, as well as the currents in the shielding windings were determined. Methodology. The design problem for the system of active shielding reduced to solving the minimax vector optimization problem. The vector of objective function in this minimax problem is calculated based on Biot-Savart's law. The solution of this problem is based on multi-agent optimization algorithms. Results. The results of theoretical and experimental studies of the systems of active shielding of the magnetic field generated by various overhead power lines inside a single and multi-storey building are presented. Originality. The possibility of reducing the induction of the initial magnetic field inside the shielded space to the level of sanitary standards is shown. Practical value. From the point of view of the practical implementation for a reasonable choice of the number and spatial arrangement of shielding windings of systems for active shielding of the magnetic field generated by various overhead power lines inside residential buildings of different storey’s are given.

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“…1. Naturally, in such residential buildings the level of magnetic field (MF) induction exceeds the sanitary standards of Ukraine by two or three times [1][2][3][4]. For the safe operation of many old residential buildings, it is economically expedient to reduce the induction level of the initial MF to the level of sanitary standards of Ukraine by means of active shielding [5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

mentioning

confidence: 99%

“…The vector payoffs are the magnetic flux density in points of the shielding space. The vector payoff is the vector nonlinear functions of vector of the required parameters of systems of active shielding and vector of the parameter of uncertainty of external magnetic field model and calculated based on Biot-Savart's law [1]. In this game the first player is the parameters of systems of active shielding and its strategy is the minimization of vector payoff.…”

mentioning

confidence: 99%

Comparison of the effectiveness of thriple-loop and double-loop systems of active shielding of a magnetic field in a multi-storey old buildings

Kuznetsov

Nikitina

Bovdui

et al. 2022

Electrical Engineering & Electromechanics

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Aim. The issues of comparing the effectiveness of reducing the level of the magnetic field in a five-storey old buildings generated by a single-circuit overhead power transmission lines with a triangular suspension of wires using a thriple-loop and double-loop systems of active screening, which respectively contain three or two compensating windings are considered. Methodology. Spatial location coordinates of the compensating windings and the currents in the shielding windings were determined during the design of systems of active screening based on solution of the maximin vector optimization problem, in whith the vector of objective function is calculated based on Biot-Savart's law. The solution of this problem is calculated based on algorithms of multi-swarm multi-agent optimization. Results. The results of theoretical and experimental comparing the effectiveness of reducing the level of the magnetic field in a five-storey old generated by a single-circuit overhead power transmission lines with a triangular suspension of wires using a thriple-loop and double-loop systems of active screening, which respectively contain three or two compensating windings are presented. Originality. For the first time, the comparison the effectiveness of reducing the level of the magnetic field in a five-storey old using a thriple-loop and double-loop systems of active screening are considered. Practical value. From the point of view of the practical implementation it is shown the possibility to reduce the level of magnetic field induction in a five-storey old buildings to the sanitary standards of Ukraine for real overhead power transmission lines currents with the help of a synthesized double-loop systems of active screening. A double-loop active screening system is simpler in comparison with a thriple-loop active screening system when implementing.

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The Normalization Methods of the Static Geomagnetic Field Inside Houses

Cited by 10 publications

References 0 publications

To the 100th Anniversary of the National Academy of Sciences of Ukraine – The Cradle of Domestic Science and Technology

To the 100th Anniversary of the National Academy of Sciences of Ukraine – The Cradle of Domestic Science and Technology

Reduction of magnetic field level in residential old buildings from overhead power lines by means of active screening

Comparison of the effectiveness of thriple-loop and double-loop systems of active shielding of a magnetic field in a multi-storey old buildings

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