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Гидравлическое сопротивление напорных пожарных рукавов

Гидравлическое сопротивление напорных пожарных рукавов

Abstract

Цель. Определение фактических значений гидравлического сопротивления напорных пожарных рукавов на основе экспериментальных исследований для использования при расчете насосно-рукавных систем. Методы. Для достижения поставленной цели применен экспериментальный метод, основанный на определении потери напора (давления) в рукавной линии путем установления разницы давления в начале и конце рукавной линии с последующим расчетом удельного сопротивления погонного метра пожарного рукава, а затем умножением сопротивления погонного метра пожарного рукава на его длину. Результаты. Выполнен сравнительный анализ значений гидравлического сопротивления напорных пожарных рукавов диаметром 77, 66, 51 мм. Установлено, что применяемые в настоящее время значения могут значительно отличаться в зависимости от источника информации. Разработана методика выполнения измерений при проведении исследований потерь давления в насосно-рукавных системах. Проведены экспериментальные исследования и определено гидравлическое сопротивление напорных пожарных рукавов диаметром 77, 66, 51 мм. Область применения исследований. Пожарная тактика, расчет насосно-рукавных систем.

Keywords

HD49-49.5, насосно-рукавные системы, напорные рукава, пожарная тактика, Crisis management. Emergency management. Inflation

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    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
gold