Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/1354
Título: Methodological development of sesonal cooling energy needs by introducing ground-cooling systems
Autor: Oliveira Panão, Marta
Gonçalves, Helder
Palavras-chave: energy needs
ground-heat exchanger
passive building
Data: 2011
Citação: Oliveira Panão, M.; Gonçalves, H. Methodological development of sesonal cooling energy needs by introducing ground-cooling systems. In: PLEA'2011 - 27th International Conference on Passive and Low Energy Architecture, Louvain-la-Neuve, Belgium, 13-15 July, 2011
Resumo: In past years, building professionals increased their interest on passive systems as sustainable solutions to reduce energy needs. This has been driven by the building certification program and new Portuguese building thermal code enacted in 2006. For residential and small office buildings, the methodology adopted is a seasonal quasi-stationary approach for calculating cooling energy following EN ISO 13790:2007. However, this method lacks specific recommendations for accounting passive cooling systems, namely ground-cooling systems. In this paper, the ground-heat exchanger contribution is included in the energy needs method. This development is sustained by measurements obtained in the ground-heat exchanger running on Solar XXI office building at LNEG campus, complemented by simplified and Fourier theoretical formulations. The horizontal ground-heat exchanger at Solar XXI is constituted by 32 concrete ducts, with a 30 cm diameter and buried 4.6 m deep. The air entrance is made from a feeding well about 15 m away from the building and its functioning during summer warm days supplies cool air for room offices.
URI: http://hdl.handle.net/10400.9/1354
Aparece nas colecções:UEAC - Comunicações em actas de encontros científicos internacionais

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