Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 11:34
Purpose of the work
In residential construction a large number of decentralized air handling units which work alternately in pairs and (thus also referred to as push/pull units) is used to serve the apartments. These ventilation systems ensure the exchange of air in residential buildings, while at the same time reducing ventilation heat losses. These air handling units are intended to ensure a regulated exchange of air but are also equipped with regenerative heat exchangers which allow for exhaust air heat recovery.
Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 11:26
Active thermography helps to evaluate existing components under realistic climate scenarios. The findings can be used, for instance, to evaluate the storage capacity, phase shifts etc. Active thermography, for instance, allows for realistic assessments of a building’s heat protection during summer time. It also allows for more accurate analyses of thermal bridges in view of climate change. Purpose of the work
Does active thermography allow realistic analyses of structural designs? Content of the contribution
Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 11:21
Aktive Thermografie unterstützt bei der Bewertung von Bestandsbauteilen unter realitätsnahen Klimaten. Daraus können Erkenntnisse z. B. zur Bewertung der Speicherfähigkeit, Phasenverschiebung, etc. gewonnen werden. Somit kann durch aktive Thermgografie beispielsweise der sommerliche Wärmeschutz eines Gebäudes realitätsnah beurteilt werden. Auch Wärmebrücken können unter Berücksichtigung der Veränderung des Klimas genauer beurteilt werden. Ziel der Arbeit/Fragestellung
Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 11:16
Content of the contribution
When measuring zero pressure for high-rises according to the ISO 9972 standard, it is normally not possible to meet its requirements where the absolute values Δp + and Δp- have to be kept at <5 Pa before and after the measurement. This presentation puts forward a proposal for a zero pressure measurement method that complements this standard and the guideline "Airtightness measurement of high-rise buildings" (see the presentation for BuildAir 2019 Peper / Schnieders).
Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 11:14
Inhalt des Vortrags
Bei Hochhäusern ist die Anforderung der Norm ISO 9972 zur Messung des Nulldrucks mit den absoluten Beträgen Δp+ und Δp- vor und nach der Messung mit < 5 Pa in der Regel nicht einzuhalten. In Ergänzung zur Norm und dem Leitfaden „Luftdichtheits-Messung von Hochhäusern“ (vgl. Beitrag BuildAir 2019 Peper/Schnieders) wird ein Vorschlag zum Vorgehen bei der Nulldruckmessung gemacht.
Submitted by Maria.Kapsalaki on Thu, 01/26/2023 - 10:57
Purpose of the work
This study is a part of a thesis work that aims to evaluate the error induced by the wind during building pressurization tests performed according to the ISO 9972 method on a reduced model in controlled laboratory conditions. Method of approach
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