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|Title: ||Sustainable buildings for a warmer world|
|Authors: ||Lomas, Kevin J.|
Cook, Malcolm J.
|Issue Date: ||2005|
|Publisher: ||© Elsevier|
|Citation: ||LOMAS, K.J. and COOK, M.J., 2005. Sustainable buildings for a warmer world. IN: Imbabi, M.S. and Mitchell, C.P. (eds). Proceedings of the World Renewable Energy Congress (WERC), Aberdeen, UK, 2005, pp.1006-1029.|
|Abstract: ||The world is heating up and the rate of warming is, it seems, increasing. Buildings, even
those in temperate climates, like the UK, must respond to these changes whilst limiting
their emission of CO2, the primary greenhouse gas.
The design challenge is exacerbated by the drive to develop brown field sites in an effort to
contain urban sprawl. Tight, compact sites, urban noise and pollution and security concerns
mean that the attenuated plan forms and operable windows, which are customarily
associated with naturally ventilated buildings, are inappropriate – and the effectiveness of
night ventilation is reduced by the urban heat island associated with large cities.
In the UK, the CIBSE has recently suggested an overheating criterion which defines the
upper limit of the summertime temperatures allowed in buildings. The criterion appeared
simultaneously with new design weather data, which was much hotter than a typical year.
All these factors tend to push designers towards the adoption of sealed mechanically
ventilated and cooled buildings – which will merely exacerbate global warming.
Hybrid buildings, a mix of natural ventilation and mechanical cooling, are touted as one
solution. But can hybrid buildings have dramatically reduced CO2 emissions? Can they be
cost effective? Can they meet all the functional requirements and maintain thermal
comfort? And, critically, can they have architectural merit?
This paper considers the temperatures which might be experienced in the UK up to the end
of the century and examines the advantages and limitations of naturally ventilated
buildings. Advanced naturally ventilated buildings, which utilise buoyancy driven stack
ventilation, are discussed in some detail as they appear to offer an energy efficient solution
to summertime comfort control and be robust to climatic change.
Two large public buildings, the Lanchester Library in Coventry and the School of Slavonic
and East European Studies in London, which address both the urban and climatic design
challenges, are presented. The SSEES building is probably the world’s first large-scale
public building with passive downdraught cooling.|
|Description: ||This article is Closed Access.|
|Version: ||Accepted for publication|
|Publisher Link: ||http://www.wrenuk.co.uk/|
|Appears in Collections:||Closed Access (Civil and Building Engineering)|
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