Exterior condensations on facades: numerical simulation of the undercooling phenomenon

• Type: Article in International Scientific Journal
• Date: 2013

Authors

E. Barreira (Author) FEUP; J. M. P. Q. Delgado (Author) FEUP; N. M. M. Ramos (Author) FEUP; V. P. de Freitas (Author) FEUP

Journal

Title: Journal of Building Performance Simulation

Vol. 6 No. 5

Pages: 337-345

ISSN: 1940-1493

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 7 Citations

ISI Web of Science

Scopus - 10 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-006-7SP

DOI: 10.1080/19401493.2011.560685

Abstract (EN): This article intends to apply existing numerical models of exterior boundary conditions on the simulation of exterior condensation on facades (undercooling phenomenon) finished with external thermal insulation composite systems. The results of three hygrothermal models were compared, regarding the temperature on the exterior surface of a west facade. The climatic conditions from Porto city were used. We analysed in detail how the simulation of the undercooling phenomenon is influenced by the numerical treatment of the radiative balance on the exterior surface. The numerical results show that these programs are useful tools in assessing the exterior condensation on facades and the importance of radiative balance on the exterior surface temperature. However, some differences were observed in the calculated values due to different parameters included in the radiative balance of the models.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9