- Tytuł:
- Ventilation heat loss in a multifamily building under varying air density
- Autorzy:
- Michalak, Piotr
- Powiązania:
- https://bibliotekanauki.pl/articles/95344.pdf
- Data publikacji:
- 2020
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
-
air density
heat capacity
dry air
volumetric heat capacity
ventilation heat loss
EN ISO 13790
monthly method
gęstość powietrza
pojemność cieplna
suche powietrze
objętościowa pojemność cieplna
wentylacyjna strata ciepła - Opis:
- Standards related to calculation methods used in building energy performance simulation tools usually impose constant volumetric heat capacity of air. However, this simplification may result in errors if the actual conditions differ from the assumptions made. The paper presents the problem of dry air density and specific heat capacity variation and their influence on calculated energy use for space heating in a multifamily building. The monthly calculation method of PN-EN ISO 13790 was used. Simulations were performed in five cities, each in one climatic zone according to PN-EN 12831. Variation of the air density caused by air temperature and elevation resulted in differences in calculated heating demand from -4.5% to 4.5% in relation to that at constant volumetric heat capacity assumed in PN-EN ISO 13790.
- Źródło:
-
Journal of Mechanical and Energy Engineering; 2020, 4, 1; 97-102
2544-0780
2544-1671 - Pojawia się w:
- Journal of Mechanical and Energy Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł