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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">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2024.9.1541-1549</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-377</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>Инженерные системы в строительстве</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Engineering systems in construction</subject></subj-group></article-categories><title-group><article-title>Подготовка горячей воды в автономных системах теплоснабжения с несколькими точками водоразбора</article-title><trans-title-group xml:lang="en"><trans-title>Hot water treatment in autonomous heat supply systems with several water intake points</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7457-6948</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Торопов</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Toropov</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Леонидович Торопов — кандидат технических наук, генеральный директор — главный конструктор</p><p>105122, г. Москва, Щелковское шоссе, д. 13</p><p>РИНЦ AuthorID: 1030472</p></bio><bio xml:lang="en"><p>Alexey L. Toropov — Candidate of Technical Sciences, General Director — Chief Designer</p><p>13 Schelkovskoe shosse, Moscow, 105122</p><p>RSCI AuthorID: 1030472</p></bio><email xlink:type="simple">Toropov@aprilgroup.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Инженерный центр «Апрель» (ИЦ «Апрель»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Engineering Center “April”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>09</month><year>2024</year></pub-date><volume>19</volume><issue>9</issue><fpage>1541</fpage><lpage>1549</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Торопов А.Л., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Торопов А.Л.</copyright-holder><copyright-holder xml:lang="en">Toropov A.L.</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://www.vestnikmgsu.ru/jour/article/view/377">https://www.vestnikmgsu.ru/jour/article/view/377</self-uri><abstract><sec><title>Введение</title><p>Введение. Повышение энергетической эффективности оборудования HVAC вносит наибольший вклад в снижение техногенного воздействия на природную среду. Особенности использования газовых нагревателей для нескольких точек разбора горячей воды связаны с комфортом потребления горячего водоснабжения (ГВС). В это понятие включены два этапа: задержка времени начала подачи горячей воды с момента открытия крана и колебание температуры горячей воды при произвольном одновременном использовании нескольких точек водоразбора. Цель исследования — изучить режимы работы ГВС газовых нагревателей, определить влияние алгоритмов модуляции тепловой мощности и тепловой инерции теплообменников на изменение температуры ГВС при одновременном использовании двух точек водоразбора.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Испытания проводились на научно-исследовательском стенде завода «АРДЕРИЯ». Объекты исследования — газовый проточный водонагреватель с модуляцией тепловой мощности Ariston FAST EVO ONT C 14,газовые настенные котлы Arderia D24 и Arderia D24 Atmo.</p></sec><sec><title>Результаты</title><p>Результаты. Определены коэффициенты тепловой инерции теплообменников исследуемых образцов, величина изменения температуры в основной точке водоразбора (душ) при периодическом подключении и отключении крана в кухне. Представлено сравнение алгоритмов модуляции тепловой мощности рассматриваемых образцов.</p></sec><sec><title>Выводы</title><p>Выводы. Работа автономных систем ГВС с несколькими точками водоразбора приводит к колебаниям температуры воды с диапазоном изменения до 10 °С. Время выравнивания температуры воды составляет до 1,5 мин. Решение вопроса обеспечения заданного комфортного уровня температуры воды достигается организацией расходов потребления ГВС и холодного водоснабжения в соответствии с уровнем приоритета потребления воды различными точками водоразбора, применением буферных тепловых емкостей или тепловых генераторов с большим диапазоном регулирования тепловой мощности и уменьшенной тепловой инерцией теплообменников.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Improving the energy efficiency of HVAC equipment makes the greatest contribution to reducing the man-made impact on the environment. The peculiarities of using gas heaters for several hot water disassembly points are related to the comfort of hot water consumption. Two points are included in this concept. The delay in the start time of hot water supply from the moment the tap is opened and the fluctuation of hot water temperature when several water intake points are used at random at the same time. The aim of the study is to investigate the operating modes of hot water of gas heaters, to determine the influence of algorithms for modulation of thermal power and thermal inertia of heat exchangers on the change in the temperature of hot water supply with the simultaneous use of two water intake points.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study was carried out on the research stand of the “ARDERIA” plant. Objects of research — Gas Instantaneous Water Heater with Thermal Power Modulation Ariston FAST EVO ONT C 14, Arderia D24 and Arderia D24 Atmo wall-mounted gas boilers.</p></sec><sec><title>Results</title><p>Results. The coefficients of thermal inertia of the heat exchangers of the studied specimens, the value of temperature change at the main point of water intake (shower) during periodic connection and disconnection of the tap in the kitchen were determined. Comparisons of the thermal power modulation algorithms of the specimens under consideration are given.</p></sec><sec><title>Conclusions</title><p>Conclusions. Operation of autonomous hot water supply systems with several water intake points leads to water temperature fluctuations with a range of up to 10 °C. Water temperature equalization time is up to one and a half minutes. The solution to the issue of ensuring a given comfortable level of water temperature is achieved by organizing the consumption of hot water and cold water in accordance with the level of priority of water consumption at various water intake points, the use of buffer heat tanks or heat generators with a large range of heat power regulation and reduced thermal inertia of heat exchangers.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>проточный газовый нагреватель воды</kwd><kwd>энергетическая эффективность</kwd><kwd>автономная система теплоснабжения</kwd><kwd>газовая колонка</kwd><kwd>газовый клапан</kwd><kwd>точка водоразбора</kwd></kwd-group><kwd-group xml:lang="en"><kwd>instantaneous gas water heater</kwd><kwd>energy efficiency</kwd><kwd>autonomous heat supply system</kwd><kwd>gas heater</kwd><kwd>gas valve</kwd><kwd>water intake point</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Автор благодарит рецензентов за замечания по стилю изложения и научно-технической сути, способствующие более глубокому раскрытию темы научной работы.</funding-statement><funding-statement xml:lang="en">The author thanks the reviewers for their comments, both in terms of the style of presentation and the scientific and technical essence, which contribute to a deeper disclosure of the topic of scientific work.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Czerski G., Strugala A. 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