Daytime urban heat island effect in high-rise and high-density residential developments in Hong Kong

被引：250

作者：

Giridharan, R ^{[1
]}

Ganesan, S ^{[1
]}

Lau, SSY ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Architecture, Hong Kong, Hong Kong, Peoples R China

来源：

ENERGY AND BUILDINGS | 2004年 / 36卷 / 06期

关键词：

daytime urban heat island effect (UHI); design variables; open structure; close structure; residential development; Hong Kong;

D O I：

10.1016/j.enbuild.2003.12.016

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Nearly 60% of electrical energy use in Hong Kong is for space conditioning during summer months. The paper investigates the impact of design-related variables on outdoor micro level daytime heat island effect in residential developments in Hong Kong. The paper hypothesizes that the differences in outdoor temperatures within and between residential developments can be explained by the impact of design-related variables on the overall environment. Case studies of three large housing estates reveal urban heat island effect (UHI) in the order of 1.5 degreesC within an estate, and 1.0 degreesC between estates. The results indicate that energy efficient designs can be achieved by manipulating surface albedo, sky view factor and total height to floor area ratio (building massing) while maximizing cross ventilation. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：525 / 534

页数：10

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