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Daylight for sustainable regeneration of built heritage sites

conference contribution
posted on 2006-01-01, 00:00 authored by S Al-Maiyah, Hisham Elkadi
Daylight is an essential contextual ingredient of place making. Research in daylighting has recently received major attention for its valuable contribution to the sustainability of the built environment. Previous research has investigated the role of daylighting in energy efficiency, its regional qualities in relation to the façade configuration, and its contribution to the sense of visual comfort. This paper argues that appropriate use of daylighting will ensure not only visual and thermal comfort in an urban setting, but also contributes to the place identity and hence sustainability of urban regeneration projects. The paper identifies the daylight variables that affect the success of the regeneration of heritage sites in Eastern Mediterranean. Daylight variables in public open spaces include a combination of sunlight, skylight and the reflected light from the facades and the ground. The Solar altitude, the geometry of sectional profiles, the reflectance of the opposing facades, the width of the street and the density of the urban built environment are examined to simulate the daylight performance in the selected heritage sites. Located in the historical Darb al-Ahmar district, Aslam Square is selected as part of one of the rehabilitation project in Cairo. This paper examines the photometric and morphological properties of the existing configuration using daylight simulation software. Various spherical projections were developed to represent full 3D visual environment. The paper calculates and analyses the direct radiation energy, the sky diffused energy and the reflected energy in the case study.

History

Event

CIB W89 International Conference on Building Education and Research (2006 : Hong Kong, China)

Publisher

Hong Kong Polytechnic University

Location

Hong Kong, China

Place of publication

Hong Kong

Start date

2006-04-10

End date

2006-04-13

ISBN-13

9789623675116

ISBN-10

9623675119

Language

eng

Publication classification

E1.1 Full written paper - refereed

Editor/Contributor(s)

A Baldwin, E Hui, F Wong

Title of proceedings

BEAR 2006 : Construction sustainability and innovation : CIB W89 International Conference on Building Education and Research

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