Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Optimized contribution of photovoltaics to cost effective building eco retrofitting
The present work includes aspects for the optimized use of photovoltaics, combined effectively with other RES and environmental technologies in the buildings, to achieve energy saving, minimizing building pollutants, especially in existing buildings and resulting to cost effective building eco retrofitting. Solar energy systems appear as a new material in the architect's hands, ready to be shaped to create alternative buildings and they can be an important part of the building design. Towards zero energy buildings, a more frequent installation of photovoltaics to buildings will be performed, effectively combined with other smart building energy technologies. In this paper the parameters to optimize the contribution of photovoltaics to building energy demand and the technologies for building eco retrofitting are presented. For the case of photovoltaics, their mounting on building facades and inclined roofs causes electrical output reduction due to view and to heat problems, from their installation. We studied the effect of azimuth and slope angles of PV panels to the corresponding electricity output, their temperature increase from mounting thermal loss suppression and the energy output rise by using diffuse reflectors. The design of a new and low cost PV/T collector is presented, including results from outdoors laboratory experiments. Finally, considerations for energy and building eco improvement suggestions to a Greek building are presented and analyzed.
Optimized contribution of photovoltaics to cost effective building eco retrofitting
The present work includes aspects for the optimized use of photovoltaics, combined effectively with other RES and environmental technologies in the buildings, to achieve energy saving, minimizing building pollutants, especially in existing buildings and resulting to cost effective building eco retrofitting. Solar energy systems appear as a new material in the architect's hands, ready to be shaped to create alternative buildings and they can be an important part of the building design. Towards zero energy buildings, a more frequent installation of photovoltaics to buildings will be performed, effectively combined with other smart building energy technologies. In this paper the parameters to optimize the contribution of photovoltaics to building energy demand and the technologies for building eco retrofitting are presented. For the case of photovoltaics, their mounting on building facades and inclined roofs causes electrical output reduction due to view and to heat problems, from their installation. We studied the effect of azimuth and slope angles of PV panels to the corresponding electricity output, their temperature increase from mounting thermal loss suppression and the energy output rise by using diffuse reflectors. The design of a new and low cost PV/T collector is presented, including results from outdoors laboratory experiments. Finally, considerations for energy and building eco improvement suggestions to a Greek building are presented and analyzed.
Optimized contribution of photovoltaics to cost effective building eco retrofitting
Tripanagnostopoulos, Yiannis (Autor:in) / Sigalas, Mihail (Autor:in) / Caouris, Yannis (Autor:in) / Karantagli, Eleni (Autor:in) / Trypanagnostopoulos, Georgios (Autor:in)
2014
4 Seiten, Bilder, Tabellen, 7 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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