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Ventilation heat loss in a multifamily building under varying air density
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Title: Ventilation heat loss in a multifamily building under varying air density

Creator:

Michalak, Piotr

Date:

2020

Type:

artykuł w czasopiśmie

Description:

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.

Place of publishing:

Koszalin

Publisher:

Publishing House of the Koszalin University of Technology

Format:

application/pdf

Identifier:

oai:dlibra.tu.koszalin.pl:1489

Language:

eng

Is part of:

Journal of Mechanical and Energy Engineering. Vol.4 (44), nr 1, s. 97-102

Rights:

Biblioteka Politechniki Koszalińskiej

Access rights:

internet

License:

Creative Commons BY 4.0

Exlibris

Subject and keywords:

aair density heat capacity of dry air volumetric heat capacity ventilation heat loss EN ISO 13790 monthly method

Object collections:

Last modified:

Nov 6, 2023

In our library since:

Jun 10, 2022

Number of object content hits:

50

All available object's versions:

https://dlibra.tu.koszalin.pl/publication/1493

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Edition name Date
Piotr Michalak, 2020, Ventilation heat loss in a multifamily building under varying air density Nov 6, 2023

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