Natural researches of temperature condition of an external wall with LSK

21st International Scientific Conference on Advanced in Civil Engineering "Construction - The Formation of Living Environment"

土木建筑工程

Plotnikov, Aleksandr^1 ; Dronov, Aleksandr^1

Moscow State University of Civil Engineering, Yaroslavskoe shosse, 26, Moscow

129337, Russia^1

关键词: Continental climate;    Distribution of temperature;    Internal surfaces;    Laboratory experiments;    On site investigations;    Temperature conditions;    Temperature drops;    Three temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/365/2/022028/pdf
DOI  :  10.1088/1757-899X/365/2/022028

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Research is conducted in the field of thermophysics of the protecting designs. In article a question the possibilities of loss of condensate on metal profiles in a wall from the easy steel thin-walled structures (ESTWS) in areas with sharply continental climate are considered. Results of on-site investigations of buildings with a framework from LSTK and laboratory experiments of a fragment of a wall with a heater from mineral wool are given. The purpose of laboratory researches is studying of heterogeneity of distribution of temperature on an internal surface of a wall and on profile section. Influence of thermoprofiles on temperature condition of a design of an external wall, with a framework from LSTK and a heater from mineral wool is considered. Experiments showed that in the section of a thermoprofile there are three temperature zones. External located from a surface to the punched openings, average - between openings, and internal from openings to a profile side. Sharp temperature drop is observed only in an average zone. The external zone of a profile is overcooled up to the temperature close to temperature of external air. Results of on-site investigations of the building with walls from LSTK to Kyzyl the Republic of Tyva revealed condensate traces in a wall. Calculations for definition of a dew point on a profile are carried out and the possibility of loss of condensate in the overcooled zone is revealed. Recommendations about elimination of a possibility of loss of condensate on a metal surface are made.