Portugal

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In the north of Portugal were identified social apartments that incorporate passive solar solutions that determine an improvement of the energetic efficiency and the internal comfort conditions without increasing significantly the construction costs [1].

Fig. 12. Social buildings: Vila do Conde and Vila Nova de Famalicao.

Подпись: from the 1960s brick wall 22 cm 1,60 W/m2°C roof 3,90 W/m2°C image153 image154 Подпись: from the 2000s brick 11+15 cm wall 1,20 W/m2°C insulated roof 0,69 W/m2°C

For Lisbon area, an example of the existent asymmetries in Portugal, between the littoral and inland and urban and rural areas, was undertaken a survey in the oriental area because, since the sixties until now were built flats with social purposes [1].

Fig. 13. Social buildings in Oriental area of Lisbon and thermal characterization of the external envelope.

In 2007, an apartment constructed from the 2000, after the first Portuguese regulation in Portugal, was simulated with EnergyPlus and undertaken a sensitivity analysis for different insulation thicknesses, orientation, intermediate flat versus a flat with an external ceiling and effect of shading devices.

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Fig. 14. Internal temperature and shading device effect.

An apartment was also analyzed in terms of Energetic Certification for different the Portuguese climatic regions. It was concluded that one with glass areas facing northeast only comply the requirements for winter Portuguese regulation for the mild climate winter region (I1) and solutions with high insulation levels. For the rough winter climatic region (I3) the traditional constructive solution does not verify the Portuguese regulation even for north and south orientation. The study put on evidence the importance of the use of the solar collector for domestic hot water against the Certification, fixing all the other parameters, the solar collectors contribute always that an house from a energetic Class B become to an energetic Class A or even A+ [2].

3. Conclusion

The network try to promote “the use of the renewable energies in the building project in dialogue with the external climatic conditions (bioclimatic buildings), in concordance with the constructive techniques and typologies of each country”. Since 2005, the beginning of the network activity, that all the participants have done a considerable effort on energetic and thermal building simulation in order to incorporate the simulation results on the real situations. The network tried always to enhance discussions of these subjects with builders, promoters and academic and technical communities.

References

[1] “Los Edificios Biclimaticos en los Paises de Ibero America, Gongalves. H. (ed.), ISBN N° 972-676-200-6 . INETI, Lisboa 2005.

[2] “Los Edificios en el Futuro, Estrategias Bioclimaticas y Sustentabilid, Gongalves. H., Camelo, S. (eds.), ISBN N°978-972-676-209-6 INETI, Lisboa 2007.E. Fchart, G. Hotwater, I. Jay, K. Load, Journal of Remarkable Solar Systems, 4 (2008) 51-58.

Cyted Network

Universidad de Catamarca — Adolfo Iriarte, Universidad Nacional de Salta — Graciela Lesino, Universidad de Tucuman — Beatriz Garzon, Universidade de Sao Paulo — Marcelo Romero, Universidade Federal Pernambuco — Ruskin Freitas, Universidad Chile — Marcelo Huenchunir e Roberto Roman, FUNDASAL — Claudia Blanco, Escola Politecnica Nacional Ecuador — Marco Yanez, CIEMAT — Maria del Rosario Heras Celemln, Jose Ferrer, Universidad Nacional Autonoma de Mexico — David Morillon, INTN (Paraguai) — Maria Emilia de Castel, Universidad Nacional de Ingenieria de Lima — Raquel Barrionuevo e Rafael Espinoza, INETI — Helder Gongalves (Coordinator) and Susana Camelo.