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Temperature reduction due to the application of phase change materials

  • Overheating is a major problem in many modern buildings due to the utilization of lightweight constructions with low heat storing capacity. A possible answer to this problem is the emplacement of phase change materials (PCM), thereby increasing the thermal mass of a building. These materials change their state of aggregation within a defined temperature range. Useful PCM for buildings show a phase transition from solid to liquid and vice versa. The thermal mass of the materials is increased by the latent heat. A modified gypsum plaster and a salt mixture were chosen as two materials for the study of their impact on room temperature reduction. For realistic investigations, test rooms were erected where measurements were carried out under different conditions such as temporary air change, alternate internal heat gains or clouding. The experimental data was finally reproduced by dint of a mathematical model.

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Document Type:Article
Author:Prof. Dr.-Ing. Conrad VölkerGND, Prof. Dr. rer. nat. Oliver KornadtGND, Milan OstryORCiD
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.3816Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20181025-38166Cite-Link
Parent Title (English):Energy and Buildings
Date of Publication (online):2018/10/25
Date of first Publication:2007/07/28
Release Date:2018/10/25
Publishing Institution:Bauhaus-Universität Weimar
Institutes:Fakultät Bauingenieurwesen / Professur Bauphysik
Issue:40, 5
First Page:937
Last Page:944
Tag:PCM; Paraffin; heat storage; mathematical model; numerical simulation; phase change materials; salt hydrate; summer overheating in buildings
GND Keyword:Raumklima; Paraffin; Phasenumwandlung; Gebäude; Überhitzung
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften / 621 Angewandte Physik
BKL-Classification:56 Bauwesen / 56.55 Bauphysik, Bautenschutz
Licence (German):License Logo Zweitveröffentlichung
The following article appeared in the journal Energy and Buildings 40 (5) 2008, 937‐944 and may be found at https://doi.org/10.1016/j.enbuild.2007.07.008.