| Issue |
E3S Web Conf.
Volume 172, 2020
12th Nordic Symposium on Building Physics (NSB 2020)
|
|
|---|---|---|
| Article Number | 09007 | |
| Number of page(s) | 5 | |
| Section | Ventilation performance | |
| DOI | https://doi.org/10.1051/e3sconf/202017209007 | |
| Published online | 30 June 2020 | |
Curtain Wall with Solar Preheating of Ventilation Air. Full Scale Experimental Assessment
TECNALIA, Basque Research and Technology Alliance (BRTA), Astondo bidea 700, 48160, Derio, Spain
* Corresponding author: roberto.garay@tecnalia.com
Heating load in Commercial buildings is highly related with ventilation systems, while at the same time local discomfort in the vicinity of glass walls occurs due to overheating. In this paper, a novel double envelope curtain wall is presented, which extracts heat from the façade by means of a ventilated cavity which is then incorporated to the ventilation air intake. A substantial reduction of heating loads is achieved. Whenever solar gains are not sought, a bypass element allows the natural ventilation of this air cavity, acting as a ventilated façade. An integrated control system with embedded electronics and actuators allows for a smart control of the system. The system is designed for integration with existing rooftop ventilation systems. Design considerations are discussed, and the outcomes of a full-scale experiment conducted in Bilbao (Spain) along 2019 presented.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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