DBPapers
DOI: 10.5593/SGEM2014/B62/S26.007

APPLICATION OF PHASE CHANGE MATERIALS IN BUILDING STRUCTURES IN NORDIC CLIMATE

Mi. Kiviste, R. Lindberg
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-21-6 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 2, 49-56 pp

ABSTRACT
The study is based on nearly two-decade research at the Department of Civil
Engineering at Tampere University of Technology. The purpose of current study is to find out structural solutions for the thermal storage of solar radiation in buildings. A significant effect of solar gains was noticed in massive external wall as well as roof structures in sunny days from March until September. However, modern lightweight materials lack thermal inertia in order to store energy. An idea to utilize the latent heat of phase change materials (PCMs) inside an insulation of light-weight roof structure enables to overcome this problem. The idea is supported with a principal example of diurnal performance of metal sheet roof structure as well as comparative calculation of energies consumed and gained. The results of current study show that PCMs have a potential in the future application of light-weight roof structures. In general, efficient solar solutions still need to be developed in order to store energy in summer and to release it in winter.

Keywords: 10-year data, temperature distribution, heat losses.