Towards a more reliable characterisation of wind-driven rain spells: Analysis of actual drying intervals in the region of Murcia (Spain)

作者

Javier Domínguez-Hernández¹ , José M. Pérez-Bella¹ , Rafael Tobajas-Alonso¹ , Alberto Ayensa-Pardos² , Lucas Sanso-Navarro¹

1. Department of Construction Engineering, Engineering and Architecture School, University of Zaragoza,
2. San Jorge University Foundation, Villanueva de Gállego, Spain

会议/活动

2nd International Conference on Moisture in Buildings (ICMB23), July 2023 (London, United Kingdom)

海报摘要

ISO standard 15927-3 allows to identify temporary exposures of wind-driven rain (WDR) on building façades by considering continued wetting intervals (named ‘spells’), separated by 96 hours or more without WDR. These 96 h are supposed presumably sufficient for evaporative losses to exceed prior rainwater ingress in façades but this assumption omits evaporation reliance on multiple local factors. Thus, it seems reasonable that the façades will take less than 96 h to dry in warmer and drier climates than the U.K., which would require to characterise WDR spells separated by shorter drying intervals. In this work, the potential evaporation losses in vertical façades with varied orientations are estimated, thus presenting a realistic estimate of the drying intervals, WDR spells and resultant temporary WDR exposures to be considered in the Region of Murcia (Spain).

关键词

Wind-driven rain, ISO 15927-3, Method reliability, Potential evaporation, Façade design, Watertightness

研究领域

Meteorology and Atmospheric Sciences, Architecture, Design and Urban Planning, Civil Engineering

参考文献

1. European Committee for Standardization. (2009). EN ISO 15927-3. Hygrothermal performance of buildings. Calculation and presentation of climatic data. Part 3: Calculation of a driving rain index for vertical surfaces from hourly wind and rain data. Brussels
2. Shuttleworth, W.J., Evaporation (chapter 4), in: D.R. Maidment (Ed.), Handbook of Hydrology, McGraw-Hill Inc, New York, 1993, pp. 4.1-4.53
3. Allen, R.G., Pereira, L.S., Raes, D., Smith, M. Crop evapotranspiration (guidelines for computing crop water requirements) - FAO irrigation and drainage paper No. 56. FAO - Food and Agriculture Organization of the United Nations, Rome, 1998
4. Walter, I.A., Allen, R.G., Elliott, R., Itenfisu, D., Brown, P., Jensen, M.E., Mecham, B., Howell, T.A., Snyder, R., Eching, S., Spofford, T, Hattendorf, M., Martin, D., Cuenca, R.H., Wright, J.L. The ASCE standardized reference evapotranspiration equation, ASCE-EWRI Task Committee Report, 2005
5. American Society of Heating, Refrigerating and Air-Conditioning Engineers. (2008). ASHRAE Standard 160P, Criteria for Moisture Control Design Analysis in Buildings. Atlanta

基金

1. MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe (No. Project PID2021-122203OB-I00)

补充材料

暂无数据

附加信息

利益冲突

No competing interests were disclosed.

数据可用性声明

The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.

知识共享许可协议

Copyright © 2023 Domínguez-Hernández et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.