Design summer year weather - outdoor warmth ranking metrics and their numerical verification

Ji, Y; Zhang, Y; Korolija, I; Futcher, J

Abstract

The existing methods of selecting design summer year weather data rely on the outdoor dry bulb temperature
without considering solar radiation and wind which can impact on indoor thermal conditions. This research sets out to examine the existing outdoor warmth ranking metrics and proposes a new warmth ranking metric (solar air temperature), which takes into account not only dry bulb temperature but also solar and wind conditions. Parametric study was carried out using five typical UK dwelling
models, by varying parameters associated with building design and operation, a large model population were generated to statistically determine how well the outdoor warmth ranking metrics correlate the predicted indoor warmth. The outdoor warmth ranking was made for the 20 years source weather data 1976–1995) in London and both CIBSE single temperature criterion and BS EN 15251 adaptive criteria were used to judge overheating in buildings. It is found that the predicted indoor warmth are mostly arbitrary in nature and none of the existing and newly proposed outdoor warmth ranking metrics can strictly correlate. The research also discovers the significant differences between the predicted overheating occurrence and severity in the warmth ranking of weather years.

• Journal Article Type: Article
• Acceptance Date: Jan 1, 2016
• Online Publication Date: May 6, 2016
• Publication Date: Nov 1, 2016
• Deposit Date: May 11, 2016
• Publicly Available Date: May 11, 2016
• Journal: Building Services Engineering Research and Technology
• Print ISSN: 0143-6244
• Electronic ISSN: 1477-0849
• Publisher: SAGE Publications
• Volume: 37
• Issue: 6
• Pages: 639-663
• DOI: https://doi.org/10.1177/0143624416648179
• Publisher URL: http://dx.doi.org/10.1177/0143624416648179
• Related Public URLs: http://bse.sagepub.com/content/early/2016/05/06/0143624416648179.abstract