CoolShift – Cooling of buildings by chiller-assisted nocturnal radiation and convection

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Author (Corporation)
Publication date
04.09.2019
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04B - Conference paper
Editors
Scartezzini, Jean-Louis
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Parent work
CISBAT 2019 International Conference. Climate Resilient Cities – Energy Efficiency & Renewables in the Digital Era
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Publisher / Publishing institution
IOP Publishing
Place of publication / Event location
Bristol
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Abstract
A novel approach for cooling an office building is numerically evaluated. PVT collectors are used for nocturnal radiative and convective cooling. A TABS ceiling serves as thermal storage. If the free cooling power of the PVT collectors is too low, it is boosted by a chiller raising the collector temperature. While the energy efficiency improves compared to a conventional daytime chiller cooling system, the room temperature cannot always be kept in the desired band. Furthermore, the PVT collectors stay cooler than comparable PV modules during the day, increasing the electricity generation.
Keywords
cooling of buildings, load shifting
Subject (DDC)
Project
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04.09.2019
Conference end date
06.09.2019
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ISBN
ISSN
1742-6596
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
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Published
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Peer review of the complete publication
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Citation
KOCH, Manuel, Ralf DOTT und Ralph EISMANN, 2019. CoolShift – Cooling of buildings by chiller-assisted nocturnal radiation and convection. In: Jean-Louis SCARTEZZINI (Hrsg.), CISBAT 2019 International Conference. Climate Resilient Cities – Energy Efficiency & Renewables in the Digital Era. Bristol: IOP Publishing. 4 September 2019. Verfügbar unter: https://doi.org/10.26041/fhnw-3700