Heat Flow through a Facede with a Controlled Ventilated Gap

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU147901" target="_blank" >RIV/00216305:26110/23:PU147901 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-5309/13/3/817" target="_blank" >https://www.mdpi.com/2075-5309/13/3/817</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/buildings13030817" target="_blank" >10.3390/buildings13030817</a>

Result language

angličtina

Original language name

Heat Flow through a Facede with a Controlled Ventilated Gap

Original language description

The article presents current research results in the field of airflow through a façade with a width of 1 m and a height of 13.7 m and with a ventilated gap, and its effect on the year-round heat balance of this façade. An idea to influence airflow in the ventilated gap of the façade is presented based on the results of developed software and the suitability of closing the air gap in winter and in the transition period of the year is described. First, the boundary conditions of the calculations, which are further used in the energy balance between the interior of the building and the exterior envi-ronment are defined. In order to include these influences, a discrete analytical calculation was created. It consists of the time distribution of the investigated thermal phenomena calculations. A significant finding is an obvious benefit of controlling the airflow through a ventilated gap in the winter and especially in the transitional period of the year. This technological knowledge has a high potential for energy savings related to the heating of buildings. As the calculations show, airflow control through a ventilated façade reduces heat flow by 25–30% on average, and in contrast, it increases heat gains by 20% and the specific values are presented within the article.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/FW03010062" target="_blank" >FW03010062: Smart facade system with energy-optimized properties</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Buildings

ISSN

2075-5309

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

1-20

UT code for WoS article

000957756800001

EID of the result in the Scopus database

2-s2.0-85152415315