Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On the energy impact of urban heat island and global warming on buildings
Highlights Important increase of the cooling energy demand of buildings in urban areas because of the urban heat island. Definition of new energy impact parameters for the urban warming. Quantification of the energy losses and benefits of buildings caused by the urban warming.
Abstract Urban heat island and global warming increase ambient temperature and modify the energy budget of buildings. The magnitude of the modification has been evaluated in a large number of articles, under different climatic and building boundary conditions. This paper collects, analyzes and classifies existing knowledge regarding the energy impact of urban heating to buildings and calculates preliminary indicators and impact figures. Based on the analysis of the impact studies, it is found that in average the cooling load of typical urban buildings is by 13% higher compared to similar buildings in rural areas. Four specific energy impact indicators, the global energy penalty per m2, the global energy penalty per m2 and degree of UHI, the global energy penalty per person and the global energy penalty per person and per degree of the UHI are defined and calculated. The variability of the heating and cooling loads of typical buildings is evaluated for the period 1970–2010. The average increase of the cooling demand is 23% while the corresponding average reduction of the heating is 19%. In total, the average energy consumption of typical buildings for heating and cooling purposes increased by 11% for the same period.
On the energy impact of urban heat island and global warming on buildings
Highlights Important increase of the cooling energy demand of buildings in urban areas because of the urban heat island. Definition of new energy impact parameters for the urban warming. Quantification of the energy losses and benefits of buildings caused by the urban warming.
Abstract Urban heat island and global warming increase ambient temperature and modify the energy budget of buildings. The magnitude of the modification has been evaluated in a large number of articles, under different climatic and building boundary conditions. This paper collects, analyzes and classifies existing knowledge regarding the energy impact of urban heating to buildings and calculates preliminary indicators and impact figures. Based on the analysis of the impact studies, it is found that in average the cooling load of typical urban buildings is by 13% higher compared to similar buildings in rural areas. Four specific energy impact indicators, the global energy penalty per m2, the global energy penalty per m2 and degree of UHI, the global energy penalty per person and the global energy penalty per person and per degree of the UHI are defined and calculated. The variability of the heating and cooling loads of typical buildings is evaluated for the period 1970–2010. The average increase of the cooling demand is 23% while the corresponding average reduction of the heating is 19%. In total, the average energy consumption of typical buildings for heating and cooling purposes increased by 11% for the same period.
On the energy impact of urban heat island and global warming on buildings
Santamouris, M. (Autor:in)
Energy and Buildings ; 82 ; 100-113
09.07.2014
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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