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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">10.22227/1997-0935.2024.1.94-104</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-164</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>Интенсивность водопотребления в отдельных водоразборных точках системы внутреннего водоснабжения</article-title><trans-title-group xml:lang="en"><trans-title>Intensity of water consumption in separate water collection points of internal water supply system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4215-1208</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поливанов</surname><given-names>Д. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Polivanov</surname><given-names>D. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Евгеньевич Поливанов — аспирант кафедры информационных систем и технологий</p><p>190005, г. Санкт-Петербург, 2-я Красноармейская ул., д. 4</p><p>РИНЦ ID: 1164703</p></bio><bio xml:lang="en"><p>Dmitrii E. Polivanov — postgraduate student of the Department of Information Systems and Technologies</p><p>4, 2nd Krasnoarmeyskaya st., Saint Petersburg, 190005</p><p>ID RSCI: 1164703</p></bio><email xlink:type="simple">dmitry_polivanov@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/0000-0001-9490-7364</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Semenov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Александрович Семенов — кандидат технических наук, доцент кафедры информационных систем и технологий</p><p>190005, г. Санкт-Петербург, 2-я Красноармейская ул., д. 4</p><p>РИНЦ ID: 648893, Scopus: 56460436800, ResearcherID: N-1075-2013</p></bio><bio xml:lang="en"><p>Alexey A. Semenov — Candidate of Technical Sciences, Associate Professor of the Department of Information Systems and Technologies</p><p>4, 2nd Krasnoarmeyskaya st., Saint Petersburg, 190005</p><p>ID RSCI: 648893, Scopus: 56460436800, ResearcherID: N-1075-2013</p></bio><email xlink:type="simple">sw.semenov@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный архитектурно-строительный университет (СПбГАСУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State University of Architecture and Civil Engineering (SPbGASU)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>31</day><month>01</month><year>2024</year></pub-date><volume>19</volume><issue>1</issue><fpage>94</fpage><lpage>104</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Поливанов Д.Е., Семенов А.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Поливанов Д.Е., Семенов А.А.</copyright-holder><copyright-holder xml:lang="en">Polivanov D.E., Semenov A.A.</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/164">https://www.vestnikmgsu.ru/jour/article/view/164</self-uri><abstract><sec><title>Введение</title><p>Введение. Применяемые расчетные методики для прогнозирования водопотребления на объектах капитального строительства при их проектировании используют в своей основе предположение о детерминированном характере элементарных расходов (т.е. расходов одним потребителем или водоразборным устройством), что значительно огрубляет расчетные методики и лишает возможности детального анализа режимов функционирования системы водоснабжения рассматриваемого объекта. Изучен характер изменчивости и оценка законов распределения значений элементарных расходов воды, возникающих при работе ряда наиболее распространенных типов водоразборных устройств.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. С помощью датчиков получены статистические данные о расходе воды в трубопроводах холодного и горячего водоснабжения, подающих воду к наиболее распространенным типам водоразборных устройств за 27 дней. Сведения обработаны и проанализированы с помощью методов теории вероятностей и математической статистики. Обработка осуществлялась в разработанных авторами программах на языке C# и R, визуализация результатов в программе Microsoft Excel.</p></sec><sec><title>Результаты</title><p>Результаты. Определены основные числовые характеристики значений элементарных расходов воды. Построены графики временного ряда, плотности распределения и функции распределения значений секундного расхода воды для характерных случаев. Установлен закон распределения и выполнен анализ характера изменчивости значений секундного расхода воды для различных типов водоразборных устройств, предложен вариант их классификации по данному признаку.</p></sec><sec><title>Выводы</title><p>Выводы. Предложено разделение водоразборных устройств по характеру изменчивости значений секундного расхода воды на две группы: стохастические и условно детерминированные. Установлено, что значение элементарного расхода для первой группы водоразборных устройств подчиняется логнормальному распределению, а для второй является детерминированной величиной.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The applied calculation methods for predicting water consumption at the objects of capital construction, when designing them, are based on the assumption of the deterministic character of elementary expenses (that is, expenses by one consumer or a water collecting device), which significantly coarsens the calculation methods and makes it impossible to analyze in detail the modes of operation of the water supply system of the considered object. The article is devoted to the study of the nature of variability and evaluation of distribution laws of elementary water consumption values arising during the operation of a number of the most common types of water-dispensing devices.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. In the course of the study, statistical data on water consumption in cold and hot water pipelines supplying water to the most common types of water collection devices for 27 days were obtained using sensors. The data were processed and analyzed using methods of probability theory and mathematical statistics. Data processing was performed in C# and R programmes developed by the author, and visualization of the results in Microsoft Excel.</p></sec><sec><title>Results</title><p>Results. The main numerical characteristics of the values of elementary water flow rates are determined. Graphs of the time series, distribution density and distribution function of values of second water flow for typical cases are constructed. The distribution law is established and the analysis of the nature of the variability of the values of the second water flow for various types of water-dispensing devices is carried out, as well as a variant of their classification on this basis is proposed.</p></sec><sec><title>Conclusions</title><p>Conclusions. The division of water-dispensing devices according to the character of variability of values of the second water flow rate into two groups is proposed: stochastic and conditionally deterministic. It is established that the value of the elementary flow rate for the first group of water-dispensing devices obeys the lognormal distribution, and for the second group it is a deterministic value.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>секундный расход воды</kwd><kwd>элементарный расход воды</kwd><kwd>интенсивность водопотребления</kwd><kwd>стохастическая природа</kwd><kwd>случайный характер</kwd><kwd>режим водопотребления</kwd><kwd>водоснабжение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>second water flow rate</kwd><kwd>elementary water flow rate</kwd><kwd>water consumption intensity</kwd><kwd>stochastic nature</kwd><kwd>random nature</kwd><kwd>mode of water consumption</kwd><kwd>water supply</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">Duan H.-F., Pan B., Wang M., Chen L., Zheng F., Zhang Y. 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