Annual Analysis of Boundary Conditions on Air Flow through Building Envelope

Abstract:

Leakage in the building envelope may occur airflow as well as its surface. It brings series of adverse consequences, including the flow of diffuse. The airflow building envelope is allowed through a pressure gradient, which is caused by the difference in temperature and wind effects; if necessary a mechanical ventilation system. Article introduces the analysis which was performed on experimental objects of different wind exposition in situ. In this analysis was measured pressure, relative humidity and air temperature in the interior and exterior, for a period of one year. In the conclusion is evaluated the effect of these boundary conditions on the very existence of the airflow through building envelope.

• Periodical: Applied Mechanics and Materials (Volume 824)
• Pages: 379-386
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.824.379
• Online since: January 2016
• Authors: Michaela Horáčková
• Keywords: Air Temperature, Airflow, Airtightness, Annual Analysis, Building Envelope, Pressure, Relative Humidity

References

[1] NG, Lisa C., Andrew K. PERSILY a Steven J. EMMERICH. Improving infiltration modeling in commercial building energy models. In: Energy and Buildings. Elsevier: Elsevier Ltd, 2015, pp.316-323. DOI: 10. 1016/j. enbuild. 2014. 11. 078. ISSN 03787788.

DOI: 10.1016/j.enbuild.2014.11.078

[3] UVIZLOVÁ, Martina a Tereza BEČKOVSKÁ. The transition of the water steam through the composition of the diffusive closed circumferential wall of the wooden house with the proper and improper realization of vapor barrier. In: ,. Envibuild buildings and environment 2013. Durnten-Zurich: Trans Tech, 2014, pp.446-449.

DOI: 10.4028/www.scientific.net/amr.899.446

[4] SAITO, Hiroaki, Hisashi MIURA a Yasuo KUWASAWA. Study on Hygrothermal Performance Related to Vapor Proofing and Air Tightness for Wooden Exterior Walls. In: Journal of Environmental Engineering (Transactions of AIJ). Japan: Architectural Institute of Japan, 2013, pp.461-470.

DOI: 10.3130/aije.78.461

[6] BEČKOVSKÝ, David, Tereza BEČKOVSKÁ, Vlach FRANTIŠEK a Vaykay FRANTIŠEK. Diffusion of water vapour, monitoring and risk analysis of wooden walls. In: Drevársky výskum: Holzforschungsbericht. Bratislava: Štátny drevársky výskumný ústav, 2014. ISSN 1336-4561.

[7] ŠKRAMLIK, Jan a Miloslav NOVOTNÝ. 18 Moisture transport within building materials. In: eds. Pedro Castro-Borges [et al]. Concrete under severe conditions: environment and loading : proceedings of the 6th International conference on concrete under severe conditions (CONSEC'10), Mérida, Yucatán, Mexico, 7-9 june 2010. Boca Raton [etc. ]: CRC Press, 2010, pp.1131-1140.

DOI: 10.1201/b10552-148

[8] ADAM, Gabriela, Ulrich PONT a Ardeshir MAHDAVI. Evaluation of Thermal Environment and Indoor Air Quality in University Libraries in Vienna. In: Envibuild buildings and environment 2013. Durnten-Zurich: Trans Tech, 2014, pp.315-320.

DOI: 10.4028/www.scientific.net/amr.899.315

[2] NOVÁK, Jiří. Vzduchotěsnost obvodových plášťů budov. 1st ed. Praha: Grada, 2008, 203 pp. Stavitel. ISBN 978-80-247-1953-5.

[5] VAVERKA, Jiří. Stavební tepelná technika a energetika budov. 1st ed. Brno: VUTIUM, 2006, 648 pp. ISBN 80-214-2910-0.