Journal
ENERGY AND BUILDINGS
Volume 41, Issue 1, Pages 101-110Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2008.07.011
Keywords
Wind-driven rain; Driving rain; Durability; Mould growth; Indoor climate; Energy consumption; Historical buildings; Cold climate; Moisture transfer; Numerical simulation
Funding
- Flemish Government
- [IWT SBO 050154]
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This paper gives an onset to whole building hygrothermal modelling in which the interaction between interior and exterior climates via building enclosures is simulated under a moderately cold and humid climate. The focus is particularly on the impact of wind-driven rain (WDR) oil the hygrothermal response, mould growth at interior wall surfaces, indoor climate and energy consumption. First the WDR load oil the facades of a 4 m x 4 m x 10 m tower is determined. Then the hygrothermal behaviour of the brick walls is analysed oil a horizontal slice through the tower. The simulations demonstrate that the impact of WDR loads on the moisture contents in the walls is much larger near the edges of the walls than at the centre. The obtained relative humidity and temperature at the interior wall surfaces are combined with isopleths of generalised spore germination time of fungus mould. The results show that WDR loads can have a significant impact on mould growth especially at the edges of the walls. Finally, for the case analysed, the WDR load Causes a significant increase of indoor relative humidity and energy consumption for heating. (C) 2008 Elsevier B.V. All rights reserved.
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