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Talks and Poster Presentations (with Proceedings-Entry):

M. Penaranda Moren, A. Korjenic:
"Building Greening And Photovoltaic - Multifunctional System";
Talk: Vienna young Scientists Symposium 2015, Wien; 2015-06-25 - 2015-06-26; in: "Vienna young Scientists Symposium 2015", Published by Book-of-Abstracts.com, (2015), ISBN: 978-3-9504017-0-7; 76 - 77.



English abstract:
The benefits of both systems, green facades and photovoltaic installations, are maximal during summer time; what arises, is a competition for surface use, between the systems.
This issue has already been discussed in other research projects. As a new multifunctional system and a consensus solution to achieve the best possible results, this research-project studies the simultaneous use of both systems in parallel.
New knowledge will be acquired with the critical investigation of testing areas, for this purpose constructed, at the Test Stand (Prüfstand) of the Research Center of Building Physics and Sound Protection. All the testing surfaces are equipped with monitoring devices and photovoltaic panels.
Half of the testing surfaces will receive greenery treatment, while the other half will serve as controls basis and receive no greenery treatment. The effects on the hygrothermal behavior of the building will be systematically und analytically analyzed, e.g. energy gains, energy savings, summer overheating.
The target of this research work is an optimal, long-lasting, cost-effective and energy efficient solution, which can be replicated and also used for the renovation of old buildings.
In wintertime, when the plants lose their leaves, they also lose all their positive effects like protection of the surfaces (losing of their physical properties) and their esthetic effect as green facades.
The main reason for the use of green facades is the summer overheating. Nowadays, due to the consequences of climate change, in prior moderate-weather zones, longer and hotter summer periods can be observed. Because of this, the required cooling is quickly
gaining importance, besides the heating need in wintertime.
With the simultaneous use of greenery and photovoltaic systems, a buffer space is created (like a kind of winter garden). This buffer space, between the exterior wall of the building and the photovoltaic panel, will be analyzed based on the premise, that due to the isolation provided from the photovoltaic panel, it has its own physical and climatic characteristics that will support the growth of the plants, allowing them to Keep their leaves for a longer period of time. This would signify the extension of their bioclimatic and physical effects throughout the winter, as an isolation and protection for the building. And for the photovoltaic equipment, the avoidance of high temperatures, which would lead to a reduction of the
performance of the PV modules. The investigation of these buffer spaces, its physic and bioclimatic effects, is part of this research project.

Created from the Publication Database of the Vienna University of Technology.