Comparing the cooling effects of a tree and a concrete shelter using PET and UTCI
作者： Pui Kwan Cheung , C.Y. Jim
DOI: 10.1016/J.BUILDENV.2017.12.013
关键词: Air temperature 、 Climate index 、 Ficus microcarpa 、 Atmospheric sciences 、 Equivalent temperature 、 Evapotranspiration 、 Environmental science 、 Urban park 、 Shading
摘要: Abstract Trees could provide notable cooling by intercepting solar radiation and evapotranspiration. Human-made shelters in urban areas also serve as shading devices. However, few studies have compared the efficacy of trees artificial shelters. This study systematically quantified daytime nighttime effects a large Chinese Banyan tree (Ficus microcarpa) with dense foliage an extensive concrete shelter, park Hong Kong's subtropical summer. Microclimatic parameters at two sites were monitored to compare air temperature, computed values PET (Physiological Equivalent Temperature) UTCI (Universal Thermal Climate Index). The mean generated 0.6 °C (air temperature), 3.9 °C (PET) 2.5 °C (UTCI), which higher than shelter 0.2 °C, 3.8 °C 2.0 °C respectively. differences significant for temperature (p
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