Thermal assessment of heat mitigation strategies: The case of Portland State University, Oregon, USA

Mohammad Taleghani, David J. Sailor, Martin Tenpierik, Andy van den Dobbelsteen

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Courtyard vegetation, high albedo surfaces, and courtyard ponds were investigated as potential heat mitigation strategies using field measurements and simulations in a university campus environment. The investigation was performed during a summer period in the temperate climate of Portland, Oregon, USA. In a comparison of seven locations on the campus, the maximum park cooling island effect recorded was 5.8°C between the heavily treed campus park and a nearby parking lot with asphalt pavement. Simulations of courtyards with vegetation and a water pond showed 1.6°C and 1.1°C air temperature reduction, respectively. Changing the albedo of the pavement in a bare courtyard from 0.37 (black) to 0.91 (white) led to 2.9°C increase of mean radiant temperature and 1.3°C decrease of air temperature.

Original languageEnglish (US)
Pages (from-to)138-150
Number of pages13
JournalBuilding and Environment
Volume73
DOIs
StatePublished - Mar 2014
Externally publishedYes

Keywords

  • Courtyard
  • ENVI-met simulation
  • Field measurement
  • Heat mitigation
  • Thermal comfort

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction

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