Assessment of heat protection characteristics of building enclosing structures of the building of the men’s monastery

Abstract

The article presents the results of a thermal imaging study and thermal engineering calculation of the building enclosing structures of the monastery hotel building in the village of Vinnovka, Stavropol district, Samara region. The survey was conducted in order to determine the causes of low temperatures in the hotel premises. According to SP 50.13330.2012 Thermal protection of buildings, energy saving standards in construction do not apply to religious buildings. The level of thermal protection of the above buildings is determined by the provision of modern sanitary and hygienic standards. Based on computer simulation of temperature fields in the outer walls, made in the form of well masonry with the use of polystyrene concrete as insulation, it was found that the value of the reduced resistance to heat transfer they meet regulatory requirements. The actual values of the reduced resistance to heat transfer of the exterior walls, obtained by the results of thermal imaging examination, in the lower part of the exterior walls in individual rooms were significantly lower than the standard ones, which leads to increased heat loss and, as a consequence, to cooling of the indoor air. The reasons for the lowered air temperatures in the hotel premises have been established and recommendations have been developed to eliminate the above-mentioned defects.

Design errors during major repairs of apartment buildings

“…Согласно СНиП II-В.3-58 «Строительная теплотехника» требуемое сопротивление теплопередаче ограждающих конструкций определяют по формуле (3) где Δt н -нормируемый температурный перепад между температурой внутреннего воздуха и температурой на внутренней поверхности наружной стены, °С.…”

“…Разница полученных значений составляет 21760 Вт, что в процентном соотношении составляет примерно 25 %. Как показали результаты исследований, опубликованные в работах [3][4][5], утепление наружных стен существенно снижает тепловые потери в помещениях (ГОСТ Р 54852-2011 «Метод тепловизионного контроля качества теплоизоляции ограждающих конструкций»). Рекомендовано выполнить утепление наружных стен.…”