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Evaluation of ventilative cooling in a single family house -Characterization and modelling of natural ventilation

Abstract : Passive cooling through window airing presents a promising potential for low energy houses in order to avoid overheating risks and to reduce energy consumption of air conditionners. One barrier against this solution is the complexity of evaluating air flows, which limits the use of natural ventilation during the design phase of a building. This study aims at analyzing a characterization and modelling process allowing natural ventilation to be accounted for in the evaluation of energy performance and thermal comfort of a single-family house. The evaluation of summer comfort and passive cooling performance will be compared to measurements performed on a zero energy house Maison Air et Lumière, located near Paris. Window characterization, on-site air flow measurements, as well as ventilation evaluation method will be described in this paper; the accuracy of the evaluation method (ventilation flow rates and thermal comfort) will be assessed thanks to a specific measurement campaign. Ventilative cooling, natural ventilation, airflow, windows, summer comfort, night cooling. 2 Introduction Low energy buildings, especially nearly Zero Energy Buildings (nZEB), are subject to significant overheating risks during summer and mid-season [1] [2]. Thermal simulations as well as experimental studies has shown the large potential of ventilative cooling; nevertheless, these studies were mainly focused on potential energy savings in office or commercial buildings [3] [4] and only few papers were published on the cooling potential of natural ventilation in dwellings.
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Submitted on : Tuesday, February 7, 2017 - 3:04:25 PM
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  • HAL Id : hal-01459888, version 1


Nicolas Dupin, Bruno Peuportier, Karsten Duer, Michael Cohen, Berenger Favre, et al.. Evaluation of ventilative cooling in a single family house -Characterization and modelling of natural ventilation. SB 14 Barcelona, Oct 2014, Barcelone, Spain. ⟨hal-01459888⟩



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