Pedestrian level thermal comfort in high-rise urban environment

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Pedestrian level thermal comfort in high-rise urban environment

 

Author: Qian, Xue-ni
Title: Pedestrian level thermal comfort in high-rise urban environment
Degree: M.Eng.
Year: 2014
Subject: Human comfort.
Architecture -- Human factors.
Hong Kong Polytechnic University -- Dissertations
Department: Dept. of Building Services Engineering
Pages: iv, 91 leaves : illustrations ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2760617
URI: http://theses.lib.polyu.edu.hk/handle/200/7639
Abstract: Outdoor human comfort in an urban climate may be affected by a wide range of parameters, including wind speed, air temperature, relative humidity, solar radiation, air quality, human activity, clothing level, age, etc. In Hong Kong where summer is hot and humid, the usage of outdoor spaces is often inconvenient since high temperature and moisture caused thermal discomfort. In order to improve the pedestrian level thermal comfort of the outdoor environment and to make urban outdoor spaces pleasant places for people to use and enjoy, better understanding of the thermal perception of people is needed. This dissertation presents the results of an outdoor thermal comfort study conducted in Hong Kong, through physical measurement of the microclimatic conditions at the immediate surroundings of the subjects and questionnaires survey. The findings of the study reveal that the characteristics of buildings such as position and distribution and local urban terrains can jointly affect a range of local microclimate weather parameters, which will further affect subjects’ thermal comfort. The results of the questionnaire survey are correlated with the micro-meteorological data to analyze the general thermal comfort conditions in the outdoor spaces in Hong Kong and the comfort requirement of the people. This understanding can contribute towards build constructions affecting people's thermal comfort in hot and humid tropical and sub-tropical cities.

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