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Heat in courtyards : a validated and calibrated parametric study of heat mitigation strategies for urban courtyards in the Netherlands

Taleghani, M; Tenpierik, M; van den Dobbelsteen, A; Sailor, D

Heat in courtyards : a validated and calibrated parametric study of heat mitigation strategies for urban courtyards in the Netherlands Thumbnail


Authors

M Taleghani

M Tenpierik

A van den Dobbelsteen

D Sailor



Abstract

Outdoor thermal comfort in urban spaces is an important contributor to pedestrians’ health. A parametric study into different geometries and orientations of urban courtyard blocks in the Netherlands was therefore conducted for the hottest day in the Dutch reference year (19th June 2000 with the maximum 33 °C air temperature). The study also considered the most severe climate scenario for the Netherlands for the year 2050. Three urban heat mitigation strategies that moderate the microclimate of the courtyards were investigated: changing the albedo of the facades of the urban blocks, including water ponds and including urban vegetation. The results showed that a north–south canyon orientation provides the shortest and the east–west direction the longest duration of direct sun at the centre of the courtyards. Moreover, increasing the albedo of the facades actually increased the mean radiant temperature in a closed urban layout such as a courtyard. In contrast, using a water pool and urban vegetation cooled the microclimates; providing further evidence of their promise as strategies for cooling cities. The results are validated through a field measurement and calibration.

Citation

Taleghani, M., Tenpierik, M., van den Dobbelsteen, A., & Sailor, D. (2014). Heat in courtyards : a validated and calibrated parametric study of heat mitigation strategies for urban courtyards in the Netherlands. Solar Energy, 103(May 14), 108-124. https://doi.org/10.1016/j.solener.2014.01.033

Journal Article Type Article
Acceptance Date Jan 25, 2014
Online Publication Date Mar 1, 2014
Publication Date May 1, 2014
Deposit Date Jan 14, 2019
Publicly Available Date Jan 14, 2019
Journal Solar Energy
Print ISSN 0038-092X
Publisher Elsevier
Volume 103
Issue May 14
Pages 108-124
DOI https://doi.org/10.1016/j.solener.2014.01.033
Publisher URL https://doi.org/10.1016/j.solener.2014.01.033
Related Public URLs https://www.sciencedirect.com/journal/solar-energy/vol/103/suppl/C

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