TAKING INTO ACCOUNT MOISTURE IN INCREASING THE ACCURACY OF CALCULATING HEAT LOSSES OF A BUILDING

Autor:	Kirill Zubarev
Jazyk:	English<br />Russian
Rok vydání:	2024
Předmět:	building envelope effect of moisture on thermal conductivity heat and moisture transfer mathematical model discrete-continuous approach Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	International Journal for Computational Civil and Structural Engineering, Vol 20, Iss 1 (2024)
Druh dokumentu:	article
ISSN:	2587-9618 2588-0195
DOI:	10.22337/2587-9618-2024-20-1-154-161
Popis:	A discrete-continuous approach was applied to the moisture transfer equation, which made it possible to obtain an analytical solution for the moisture potential. The new method was applied to study the unsteady-state moisture regime of the facade heat-insulating composite system with expanded polystyrene insulation and aerated concrete base. It was found that the mass moisture content of building materials achieved in the walls during the period of operation is lower than the mass moisture content used in construction regulations, which makes it possible to increase the accuracy of calculating the transmission heat losses of the building. Calculations of heat losses of a two-storey building in the climatic conditions of Moscow (Russia) showed a decrease in the heating system load by 5 %, and the reduction in heat losses for specific premises of the building ranged from 3.6 to 7 %.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/5338fc7897714f3f8120fea2e0fcd2c6 Zobrazit plný text záznamu View record in DOAJ