Thermal Stability Influence of the Enclosure Structure on the Building’s Energy Efficiency

Zaborova, Daria; Petrochenko, Marina; Chernenkaya, Ludmila

doi:10.1051/matecconf/20167302014

Cited by 8 publications

(3 citation statements)

References 20 publications

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“…To assess the humidity of the wall, we need to know the average wall temperature, which determines the average moisture level. The average temperature of the wall is determined by the construction of the wall, that is, by alternating layers [3,5]. The best combination of layers, providing a maximum of average temperatures, is achieved with a monotonic decrease in the thermal conductivity coefficient along the course of the heat flux, that is, achieved with the average temperature that is the least different from the maximum wall temperature [10,[12][13][14].…”

Section: Methodsmentioning

confidence: 99%

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Humidity Distributions in Multilayered Walls of High-rise Buildings

2018

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The limitation of free territories in large cities is the main reason for the active development of high-rise construction. Given the large-scale projects of high-rise buildings in recent years in Russia and abroad and their huge energy consumption, one of the fundamental principles in the design and reconstruction is the use of energy-efficient technologies. The main heat loss in buildings occurs through enclosing structures. However, not always the heat-resistant wall will be energy-efficient and dry at the same time (perhaps waterlogging). Temperature and humidity distributions in multilayer walls were studied in the paper, and the interrelation of other thermophysical characteristics was analyzed.

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Section: Methodsmentioning

confidence: 99%

“…Is the heat-resistant wall energy-efficient and dry at the same time? We will try to prove that these conditions are not fulfilled simultaneously [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Humidity Distributions in Multilayered Walls of High-rise Buildings

2018

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“…Since most of Russian cities are located in a climate with low temperature scenario, it is important to consider to what extent a material used in the construction possesses characteristics necessary for comfortable indoor climate, such as: thermogravitational convection [3], energy efficiency [4][5][6][7][8][9], thermal stability. High-strength concrete has to be strength, frost resistance and water penetration resistance tested [10,11], however under Russian harsh climatic conditions thermal capacity is an extremely important characteristic of a building envelope.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Thermal Stability of Dry High-strength Concrete and Wet High-strength Concrete

et al. 2018

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Abstract. High-strength concrete is a modern material, which occupies it`s own niche on the construction material market. It is applicable in a largescale high-rise construction, particularly an underground construction is a frequently used solution for a space saving. Usually underground structure is related to a wet usage environment. Though not all properties of the highstrength concrete are investigated to the full extent. Under adverse climatic conditions of the Russian Federation one of the most important properties for constructional materials is a thermal capacity. Therefore, the main purpose of the paper is to compare a thermal capacity of the high-strength concrete in humid conditions and a thermal capacity of the high-strength concrete in dry operational condition. During the study dependency between thermal capacity and design wall thickness and ambient humidity has to be proven with two experiments. As a result the theoretical relation between thermal capacity characteristic -thermal inertia and wall thickness and ambient humidity was confirmed by the experimental data. The thermal capacity of a building is in direct ratio to the construction thickness. It follows from the experiments and calculations that wet high-strength concrete has less thermal stability.

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