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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">agroengineering</journal-id><journal-title-group><journal-title xml:lang="ru">Агроинженерия</journal-title><trans-title-group xml:lang="en"><trans-title>Agricultural Engineering (Moscow)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2687-1149</issn><issn pub-type="epub">2687-1130</issn><publisher><publisher-name>РГАУ-МСХА</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26897/2687-1149-2024-1-73-79</article-id><article-id custom-type="elpub" pub-id-type="custom">agroengineering-736</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ЭЛЕКТРИФИКАЦИЯ И АВТОМАТИЗАЦИЯ СЕЛЬСКОГО ХОЗЯЙСТВА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POWER SUPPLY AND AUTOMATION OF AGRICULTURAL PRODUCTION</subject></subj-group></article-categories><title-group><article-title>Исследование на компьютерной модели влияния элементов конструкции и влажности зерна на добротность СВЧ-конвективной зоны</article-title><trans-title-group xml:lang="en"><trans-title>Study of a computer model of the influence of structural elements and grain moisture on the Q-factor of the microwave-convective zone</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3147-659X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiliev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Алексеевич Васильев, канд. техн. наук, старший научный сотрудник</p><p>109428</p><p>1‑й Институтский проезд, 5</p><p>Москва</p></bio><bio xml:lang="en"><p>Aleksei A. Vasiliev, CSc(Eng), Senior Researcher</p><p>109428</p><p>1st Institutsky Proezd Str., 5</p><p>Moscow</p></bio><email xlink:type="simple">Lex.of@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3526-4474</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихомиров</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhomirov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Анатольевич Тихомиров, чл.‑ корр. РАН, д‑р техн. наук, профессор, главный научный сотрудник</p><p>109428</p><p>1‑й Институтский проезд, 5</p><p>Москва</p></bio><bio xml:lang="en"><p>Dmitriy A. Tikhomirov, RAS Corresponding Member, DSc (Eng), Professor, Chief Researcher</p><p>109428</p><p>1st Institutsky Proezd Str., 5</p><p>Moscow</p></bio><email xlink:type="simple">Tihda@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7988-2338</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильев</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasiliev</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Николаевич Васильев, д‑р техн. наук, профессор, главный научный сотрудник</p><p>109428</p><p>1‑й Институтский проезд, 5</p><p>Москва</p></bio><bio xml:lang="en"><p>Aleksei N. Vasiliev, DSc (Eng), Professor, Chief Research Engineer</p><p>109428</p><p>1st Institutsky Proezd Str., 5</p><p>Moscow</p></bio><email xlink:type="simple">vasilev-viesh@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный научный агроинженерный центр ВИМ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Scientific Agroengineering Centre VIM</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>09</day><month>02</month><year>2024</year></pub-date><volume>26</volume><issue>1</issue><fpage>73</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Васильев А.А., Тихомиров Д.А., Васильев А.Н., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Васильев А.А., Тихомиров Д.А., Васильев А.Н.</copyright-holder><copyright-holder xml:lang="en">Vasiliev A.A., Tikhomirov D.A., Vasiliev A.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://agroengineering.timacad.ru/jour/article/view/736">https://agroengineering.timacad.ru/jour/article/view/736</self-uri><abstract><p>   Сушку зерна после уборки урожая часто проводят в конвективных зерносушилках с СВЧ-воздействием. При проектировании СВЧ-устройств с резонаторами стремятся к достижению максимальной добротности СВЧ-конвективных зон. В связи с отсутствием исследований по влиянию влажности зерна и элементов, расположенных в СВЧ-конвективной зоне, на её добротность авторы статьи исследовали данные зависимости на компьютерной модели. С помощью програмы CST Microwave Studio 2019 получены данные об изменении добротности резонаторов. Применяли методы Time Domain Solver для выполнения расчёта СВЧ-активной зоны в широком диапазоне частот и Eigenmode Solver – для нахождения собственных мод резонансных структур. Компьютерное моделирование проводили в два этапа. На первом этапе оценивали влияние на величину добротности размещения в СВЧ-конвективной зоне волноводов. На втором этапе исследовали изменение добротности СВЧ-конвективной зоны с волноводами и зерном различной влажности (14, 24 и 26 %). Установлена существенная зависимость добротности зоны обработки зерна от особенностей конструкции и размещения в ней технологических элементов, а также от влажности обрабатываемого зерна и его температуры. Авторами дана рекомендация к проектированию СВЧ-конвективной зоны для технологических процессов, заключающаяся в том, чтобы стремиться не к достижению максимума добротности, а к обеспечению равномерного распределения поля СВЧ в активной зоне.</p></abstract><trans-abstract xml:lang="en"><p>   Grain drying after harvesting is often carried out in convective grain dryers with microwave exposure. When designing microwave devices with resonators strive to achieve the maximum efficiency (Q-factor) of microwave convection zones. Due to the lack of studies on the influence of grain humidity and elements located in the microwave convective zone on its Q-factor, the authors investigated these dependences on a computer model. Using the CST Microwave Studio 2019 software, the authors obtained the data on the change in the Q-factor of the resonators. Time Domain Solver methods were used to perform the calculation of the microwave active zone in a wide range of frequencies, and Eigenmode Solver methods – to find the eigenmodes (natural modes) of resonant structures. Computer modeling was carried out in two stages. At the first stage, the authors evaluated the influence on the Q-factor value of the placement in the microwave convective zone of the waveguides. At the second stage, the authors analyzed the change in the Q-factor of microwave convective zone with waveguides and grain of different moisture content (14, 24, and 26 %). The study established significant dependence of the Q-factor of the grain processing zone on the design features and placement of technological elements in it, as well as on the humidity of the processed grain and its temperature. The authors recommended that when designing microwave convective zone for technological processes, the goal should be not to achieve the maximum Q-factor, but to ensure uniform distribution of the microwave field in the active zone.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>добротность СВЧ-конвективной зоны</kwd><kwd>поле СВЧ</kwd><kwd>СВЧ-активная зона</kwd><kwd>сушка зерна</kwd><kwd>влажность зерна</kwd><kwd>резонатор</kwd><kwd>добротность</kwd><kwd>компьютерное моделирование</kwd><kwd>проектирование СВЧ-конвективной зоны</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Q-factor of microwave convection zone</kwd><kwd>microwave field</kwd><kwd>microwave active zone</kwd><kwd>grain drying</kwd><kwd>grain moisture</kwd><kwd>resonator</kwd><kwd>Q-factor (efficiency)</kwd><kwd>computer modeling</kwd><kwd>microwave convection zone design</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bruce R.M., Atungulu G.G., Sadaka S., Smith D. 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