Thermophysical field testing of residential buildings made of autoclaved aerated concrete blocks

Korniyenko, Sergey Valeryevich; Vatin, Nikolai; Горшков, А. С.

doi:10.5862/mce.64.2

Cited by 50 publications

(22 citation statements)

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“…The foam plastic PP used for insulation of roofing panels, frame panels with an inner nonmetallic layer, is obtained. Such panels allow breaking bridges of cold in butt joints [16,17,18] that improves thermophysical characteristics, reliability and durability of the building as a whole [19,20].…”

Section: Discussionmentioning

confidence: 99%

Thermal - insulation material for frame panels with an internal non-metallic layer

2018

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The foam plastic capable to work in frame panels as a thermal - insulation and facing and decorative material can be only of composite type. We have developed a new type of composite foam plastic, its density increases from center to surfaces. The article presents the composition of new material, the technology of its production, as well as the mathematical model of the mechanism of formation of strong crusts at its surfaces. Microscopic analysis of the composite showed that the density of crust is more than 200 kg / m3, the density of the foam plastic in its middle part is 80 kg / m3. The limit of strength at punching it by the rod diameter 0.01 m reaches 3.5 MPa. The material is used for the manufacture of roofing panels, frame panels with an internal non-metallic layer.

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Section: Discussionmentioning

confidence: 99%

Thermal - insulation material for frame panels with an internal non-metallic layer

2018

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“…The aforesaid results of analysis of the heating systems is very important in the economic aspect for filling the gap between the demanded level of the maintenance properties of the heating system in modern conditions and the actual level on the basis of methods of non-destructive control. But at the same time in scales of the heating economy of the heat supplying facility the concentration of enough financial resources is necessary for ensuring financing measures for the achievement of reducing cumulative accelerated depreciation [19][20][21]. This requirement along with the methods of non-destructive control, chosen according to technical and economic parameters will provide desirable effect in scales of the urban environment as whole.…”

Section: Discussionmentioning

confidence: 99%

Technical-and-economic aspects of the analysis of the heating systems maintenance in the conditions of urban environment

Verstina

Evseev

2017

MATEC Web Conf.

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Abstract. In the modern world one can notice considerable rates of the increase in quantity and size of the large cities which have received the general name reflecting their key characteristics -they are named megalopolises. The directions of the enhancement of the processes of the heating systems maintenance in the modern urban environment in its constant development are considered in the article. The author determines the directions of the technical-and-economic analysis of the maintenance of this type of facilities in the urban environment, which will allow filling the gap between the level of maintenance properties of the heating systems, demanded in the modern conditions, and the actual level. Some methodical provisions of carrying out the technical-and-economic analysis of the heating systems operation, which complex nature provides the objective assessment of the essential factors action during their functions completion within the urban environment, are suggested.

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“…Объект исследования -ограждающие конструкции, изготовленные из различных материалов, а также их теплотехнические свойства. Изучение накопления (отдачи) тепла ограждающими конструкциями представляет научный и практический интерес [1][2][3][4][5][6][7][8][9][10]. Одна из главных проблем в строительстве -это экономия на строительных материалах и неправильное проектирование ограждающих конструкций.…”

Section: Introductionunclassified

Heat engineering properties of energy-efficient material based on plant additives (dried hogweed)

et al. 2019

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Introduction. The articlecompares the heat engineering properties of construction materials: high-strength concrete, ordinary concrete, and two concrete samples containing a vegetable additive, dried stem fragments of hogweed (Heracleum sosnowskyi). The first sample contains the additive in the crushed form, while the second contains the additive in the form of tubes. The research to estimate heat conduction in the four samples under unsteady conditions. Materials and methods. The thermal diffusivity of two samples with plant additive is determined using a comparative physical experiment. When determining the thermal properties, the accumulating component of the enclosure is taken into account what leads to a long delay in the temperature variation over time. DS18B20 digital temperature sensors connected to an Arduino Uno board were used to measure the temperature. The experiment was carried out in the Challenge 250 chamber at an initial temperature of 20 ºС. Then the chamber temperature was lowered to 0 ºС within 30 minutes. In the next period, the temperature dropped from 0 ºС to –10 ºС. The data obtained are of interest for improving the energy efficiency of buildings. Results. The experiments showed that the tubular-hogweed sample is close to high-strength concrete by its heat engineering properties. The material thermal diffusivity affects the amplitude of temperature fluctuations and the accumulating capacity of the wall. Conclusions. It is established experimentally that at lower thermal diffusivity of a hogweed-containing sample, the amplitude of temperature fluctuations increases. This indicates a greater time lag, just as in the case of a high-strength concrete sample. When using the hogweed as an additive, we obtain a heat-resistant minimum-cost material for enclosures. Considering an issue of the energy efficiency in construction and existing additives to concrete, the researchers have reached the conclusion that it is efficient to use the dried hogweed as the plant additive.

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Thermophysical field testing of residential buildings made of autoclaved aerated concrete blocks

Cited by 50 publications

References 0 publications

Thermal - insulation material for frame panels with an internal non-metallic layer

Thermal - insulation material for frame panels with an internal non-metallic layer

Technical-and-economic aspects of the analysis of the heating systems maintenance in the conditions of urban environment

Heat engineering properties of energy-efficient material based on plant additives (dried hogweed)

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