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Energies 2018, 11(6), 1475; https://doi.org/10.3390/en11061475

Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions

1
Façade Research Group, Department of Architectural, Faculty of Architecture and the Built Environment, Engineering + Technology, Delft University of Technology, Julianalaan 134, 2628BL Delft, The Netherlands
2
Department of Architecture, Technical University of Munich, Arcisstraße 21, 80333 Munich, Germany
*
Author to whom correspondence should be addressed.
Received: 18 May 2018 / Revised: 2 June 2018 / Accepted: 4 June 2018 / Published: 6 June 2018
(This article belongs to the Special Issue Building Renewable Energy and Thermal Energy Storage System 2018)
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Abstract

Small-scale systems and integrated concepts are currently being explored to promote the widespread application of solar cooling technologies in buildings. This article seeks to expand application possibilities by exploring the feasibility of solar cooling integrated façades, as decentralized self-sufficient cooling modules on different warm regions. The climate feasibility of solar electric and solar thermal concepts is evaluated based on solar availability and local cooling demands to be met by current technical possibilities. Numerical calculations are employed for the evaluation, considering statistical climate data; cooling demands per orientation from several simulated scenarios; and state-of-the-art efficiency values of solar cooling technologies, from the specialized literature. The main results show that, in general, warm-dry climates and east/west orientations are better suited for solar cooling façade applications, compared to humid regions and north/south orientations. Results from the base scenario show promising potential for solar thermal technologies, reaching a theoretical solar fraction of 100% in several cases. Application possibilities expand when higher solar array area and lower tilt angle on panels are considered, but these imply aesthetical and constructional constraints for façade design. Finally, recommendations are drafted considering prospects for the exploration of suitable technologies for each location, and façade design considerations for the optimization of the solar input per orientation. View Full-Text
Keywords: solar cooling; façade integration; buildings; warm climates; PV; solar thermal collectors solar cooling; façade integration; buildings; warm climates; PV; solar thermal collectors
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Prieto, A.; Knaack, U.; Auer, T.; Klein, T. Feasibility Study of Self-Sufficient Solar Cooling Façade Applications in Different Warm Regions. Energies 2018, 11, 1475.

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