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Measurements of the temperature of the walls of composite pipes during thermal processing in travelling - wave microwave systems
Measurement Techniques. 2016. Vol. 59. No. 8. P. 856-860.
A design is proposed for microwave systems which produce a uniform temperature distribution over the transverse cross section of dielectric pipes. A method for calculating the temperature distribution over the thickness of pipes made of composite materials is examined.
Измерение температуры стенок композитных труб при термообработке в СВЧ-установках типа бегущей волны
Nefedov V. N., Mamontov A. V., Simonov V., Измерительная техника 2016 № 8 С. 45-48
Предложен метод построения микроволновых установок, формирующих равномерное распределение температуры по поперечному сечению диэлектрических труб. Рассмотрен способ расчёта распределения температуры по толщине труб из полимерных композиционных материалов. ...
Added: September 15, 2016
Nefedov V. N., Mamontov A. V., Saygin I., , in : 2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE). : Саратов : IEEE, 2016. P. 436-441.
The results of theoretical and experimental research in the field of high-performance microwave technology for the heat treatment of core material with low thermal conductivity are presented. The microwave method allows uniform heating of the dielectric rod throughout the volume, leads to the completeness of the polymerization reaction and high strength characteristics of the resulting ...
Added: October 24, 2016
Mamontov A. V., Nefedov V. N., Simonov V., T-Comm: Телекоммуникации и транспорт 2014 Т. 8 № 10 С. 53-55
Theoretical and experimental research results in the field of highly effective rod material's with low thermal conductivity microwave heat treatment technologies are presented. Rods made of polymeric composite materials are used as reinforcement in construction industry. Proposed microwave throughout the volume uniform heating method of the dielectric rod removes the internal thermal stresses in the ...
Added: February 13, 2015
Nefedov V. N., Mamontov A. V., Chechetkin A. A., , in : 2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE). : Саратов : IEEE, 2016. P. 456-462.
The method of calculation of the temperature distribution in the dielectric material for the traveling wave microwave devices is presented. The basic equations for the temperature distribution in the direction of the electromagnetic field energy propagation with considering the dependence of the dielectric parameters of a material on the temperature changes and taking into account ...
Added: October 24, 2016
Nefedov V. N., Mamontov A. V., , in : Innovative Information Technologies: Materials of the International scientific-practical conference. Part 3. * 3.: M. : HSE, 2014. P. 283-288.
The results of calculation and measurement of temperature distribution in the leasing out of dielectric materials which are heated up in the microwave devices wave-water type. The calculation method of microwave devices of a waveguide type of heat treatment of sheet dielectric materials. Considered microwave devices, Otley-exclusive feature of which is the change of the ...
Added: May 7, 2014
Nefedov V. N., Mamontov A. V., Simonov V. et al., Измерительная техника 2015 № 10 С. 53-55
Theoretical and experimental research results in the field of high-performance microwave technologies of sheet materialsare presented. Sections of two-dimensional periodic slow-wave systems are used as heating elements. Divergence of theoretical and experimental temperature distribution characteristics in the sheet material does not exceed 3%, and the temperature deviation in the material from the nominal temperature value ...
Added: February 9, 2016
Методы снижения уровня побочных излучений микроволновых устройств термообработки листовых материалов
Nefedov V. N., Nazarov I., Simonov V., Технологии электромагнитной совместимости 2014 № 4 С. 44-48
Methods for decreasing spurious radiation for microwave devices intended for thermal treatment of sheet materials are considered. Microwave installation is created on the basis of sections slow –wave structure with variable parameter. To reduce spurious emissions to slow the system of microwave devices were placed in special screen mesh. It is shown that spurious radiation ...
Added: January 19, 2015
Mamontov A. V., Nefedov V. N., Simonov V., Measurement Techniques 2015 No. Volume 58, Issue 10 P. 1156-1159
The results of theoretical and experimental investigations in the area of high performance microwave technologies for the heat treatment of sheet materials are presented. Two-dimensional periodic slow-wave systems are used as the heating elements of the microwave devices. The disagreement between the theoretical and experimental temperature distribution characteristics in the sheet material and the temperature ...
Added: February 9, 2016
Nefedov V. N., Life Science Journal 2014 Vol. 11 No. 8 P. 512-515
Mainstreams of microwave technologies’ development and applications both in Russia and abroad are presented. Such directions as energetic efficiency of microwave technologies, ceramics and polymer heat treatment, basalt melting, drying of thermo-insulating materials, treatment of wastage are examined. Experimental studies were carried out on the electromagnetic field frequency oscillations of 2450 MHz. Polymer composite materials' ...
Added: May 13, 2014
Mamontov A. V., Nefedov V. N., Simonov V., T-Comm: Телекоммуникации и транспорт 2014 Т. 8 № 10 С. 56-59
Theoretical and experimental research results in the field of highperformance microwave technologies of sheet materials' with small dielectric losses thermal treatment are presented. To increase the electric field decay constant amplitude in the material with small dielectric losses sections of twodimensional periodic slowwave systems are used as heating elements. The microwave construction is based on ...
Added: February 13, 2015
Nefedov V. N., Mamontov A. V., Simonov V. et al., T-Comm: Телекоммуникации и транспорт 2016 Т. 10 № 9 С. 5-8
Представлены теоретические результаты отверждения параболической антенны из полимерных композиционных материалов с использованием в качестве источника тепла энергии электромагнитного поля сверхвысоких частот. Показаны преимущества микроволнового метода тепловой обработки антенн из углеродного волокна с эпоксидным термоотверждающимся связующим по сравнению с традиционными методами. Приведены результаты теоретических исследований по ускоренному отверждению антенн из полимерных композиционных материалов в микроволновой установке ...
Added: July 19, 2017
Mamontov A. V., Nefedov V. N., Simonov V. et al., T-Comm: Telecommunications and transport 2016 Vol. 10 No. 8 P. 79-82
Theoretical and experimental results of heat curing of concrete using ultra-high frequency electromagnetic energy as a source of heat are presented. The advantages of microwave method of heat curing of concrete are compared with traditional methods. The results of studies on the accelerated curing of concrete slabs in a beam-type microwave setup are presented.
A beam-type ...
Added: September 15, 2016
Nefedov V. N., Mamontov A. V., Simonov V. et al., T-Comm: Телекоммуникации и транспорт 2015 Т. 9 № 6 С. 70-73
Рассмотрены вопросы применения микроволновых технологий нагрева диэлектриков на примере экспериментальных исследований по оценке эффективности СВЧ сушки базальтового картона и плавления сырья для его производства. Актуальность работы обусловлена поиском инновационных технологий, проводимым многими производственными компаниями в России и за рубежом. Существующие на сегодняшний день технологии для производства изделий из базальтового волокна (штапельного или непрерывного) характеризуются значительными ...
Added: August 31, 2015
Nefedov V. N., Махмудов С. А., , in : 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE). : Саратов : IEEE, 2018. P. 376-380.
A model and method for calculating the temperature distribution of a wide range of materials in a microwave beam-type unit taking into account the reflective walls of the chamber is supposed. The experimental and modeling characteristics of the temperature distribution over the thickness of a homogeneous dielectric material at different distances from the walls of ...
Added: October 30, 2018
Mamontov A. V., Nefedov V. N., Khritkin S. A., Измерительная техника 2022 № 6 С. 46-51
The actual problem of accelerating and reducing the energy costs of the sheet polymer composite material heat treatment technological process is considered. It is shown that to solve this problem, it is advisable to use the microwave radiation energy as a heating source. The main advantages of the microwave method of the sheet polymer composite ...
Added: October 24, 2022
Mamontov A. V., Nefedov V. N., Электронная техника. Серия 1: СВЧ-техника 2013 № 4 С. 209-217
Рассмотрено СВЧ – устройство для формирования равномерного распределения температуры в листовых диэлектрических материалах с различными электрофизическими параметрами. СВЧ – устройство построено на основе сочетания систем волноводного типа и замедляющих систем. Приведены результаты измерений распределения температуры по ширине и толщине листовых материалов в СВЧ – устройствах типа бегущей волны на частоте колебаний электромагнитного поля 2450 МГц. ...
Added: January 29, 2014
Nefedov V. N., Мамонтов А. В., Simonov V. et al., Измерительная техника 2018 № 3 С. 42-46
The method of construction of the radial type microwave devices forming the uniform temperature distribution in the volume of polymer composite pipes is suggested. The results of theoretical and experimental studies of the temperature distribution along the thickness of the pipe material are presented. The advantages of microwave technology for the curing of polymeric composite ...
Added: April 16, 2018
Mamontov A. V., Nefedov V. N., Nazarov I. et al., Измерительная техника 2021 № 4 С. 44-48
The actual problem of accelerating and reducing the energy costs of the foam concrete slabs heat treatment technological process is considered. It is shown that to solve this problem, it is advisable to use the microwave radiation energy as a heat source. The main advantages of the microwave method of foam concrete slabs heat treatment ...
Added: May 15, 2021
Nefedov V. N., Mamontov A. V., Afanasyev V., , in : 2016 International Conference on Actual Problems of Electron Devices Engineering (APEDE). : Саратов : IEEE, 2016. P. 463-468.
Theoretical and experimental results of curing of polymer composite pipes with the use of microwave radiation energy are presented. The results of studies on the accelerated curing of polymer composite pipes with diameter of 2000 mm, thickness of 36 mm at a temperature of +200°C and at anelectromagnetic field frequency oscillation of 2450 MHz and ...
Added: October 24, 2016
Nefedov V. N., Mamontov A. V., Simonov V., , in : Innovative Information Technologies: Materials of the International scientific-practical conference. Part 3. * 3.: M. : HSE, 2014. P. 274-282.
Theoretical and experimental results of microwave radiation influence on the multi-layered biological tissues at 2450 MHz electromagnetic field frequency oscillations. Model and analytical calculation method of the temperature distribution inside the volume of biological tissue are presented. The prospects of the microwave radiation therapy are shown. ...
Added: May 7, 2014
Mamontov A. V., Nazarov I., Nefedov V. N. et al., Технологии электромагнитной совместимости 2012 № 3 С. 66-68
Рассмотрены методы снижения уровня побочных излучений от СВЧ установок, предназначенных для термообработки материалов с малыми диэлектрическими потерями. СВЧ установки созданы на основе секций двумерно-периодических замедляющих систем. Показано, что уровень побочного излучения от работающего СВЧ устройства не превышает допустимых норм. ...
Added: October 10, 2012
Nefedov V. N., Afanas'ev V. V., Ryabikina I. G., , in : 2018 International Conference on Actual Problems of Electron Devices Engineering (APEDE). : Саратов : IEEE, 2018. P. 371-375.
The results of the microwave radiation influence of the electromagnetic field oscillation frequency of 2450 MHz on the process of curing thermosetting epoxy resins, which are used as a binder in the production of polymer composite materials based on basalt, glass and carbon fibers, are presented. It is shown that the density of the cured ...
Added: October 30, 2018
Nefedov V. N., Mamontov A. V., Нефедов М. В. et al., Метрология. Ежемесячное приложение к научно-техническому журналу «Измерительная техника» 2010 № 12 С. 36-42
Questions of the even temperature distribution creation in the volumetric materials with different dielectric losses placed in the beam-type microwave device are examined. The volumetric material was irradiated by two types of antennas which provided perpendicular and parallel flux direction of the electric-field vector relatively to the material's surface. Experimental data on the temperature field ...
Added: December 8, 2012