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Open AccessArticle

Improving Ventilation Efficiency for a Highly Energy Efficient Indoor Swimming Pool Using CFD Simulations

1
Unit for Energy Efficient Buildings, University of Innsbruck, Innsbruck 6020, Austria
2
Passive House Institute, 64283 Darmstadt, Germany
*
Author to whom correspondence should be addressed.
Fluids 2018, 3(4), 92; https://doi.org/10.3390/fluids3040092
Received: 26 September 2018 / Revised: 7 November 2018 / Accepted: 9 November 2018 / Published: 15 November 2018
(This article belongs to the Special Issue Ventilation and Passive Cooling for Healthy and Comfortable Buildings)
The operation of a typical indoor swimming pool is very energy intensive. Previous studies have shown that high quality thermal building envelopes, i.e., with high levels of insulation and airtightness, make it possible to rethink conventional ventilation concepts. Due to the reduced condensation risk in and on envelopes of high thermal quality, ventilation design can be optimized for indoor air quality rather than for averting condensation on the facade. This work investigates different air distribution concepts for an existing swimming pool via computational fluid dynamics (CFD) simulations to evaluate their ventilation efficiency. To reduce modelling and computational resources, the velocity and turbulence fields produced by the swirl-diffusers are determined in a set of separate CFD simulations and incorporated into the swimming pool models. The results show that the ventilation efficiency in the examined swimming pool could potentially be improved with various alternative air distribution concepts, therefore improving the indoor air quality. Although the results seem plausible and compare well with the limited measurement data of air humidity, a more formal experimental validation is still needed before generalizing recommendations. View Full-Text
Keywords: swimming pool; ventilation efficiency; air exchange efficiency; contaminant removal efficiency; CFD; Passive House swimming pool; ventilation efficiency; air exchange efficiency; contaminant removal efficiency; CFD; Passive House
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MDPI and ACS Style

Rojas, G.; Grove-Smith, J. Improving Ventilation Efficiency for a Highly Energy Efficient Indoor Swimming Pool Using CFD Simulations. Fluids 2018, 3, 92.

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