37º IAHS World Congress on Housing: - Universidad de Cantabria

XXXVII <strong>IAHS</strong><strong>World</strong> <strong>Congress</strong> on HousingOctober 26 – 29, 2010, Santander, SpainCODE: 174THERMAL CHARACTERIZATION OF GYPSUM BOARDSWITH PCM: THERMAL ENERGY STORAGE IN BUILDINGSTHROUGH LATENT HEAT*Oliver A. 1 , Neila F.J. 1 , García A. 1Department of Construction and Technology in Architecture 11 University Polytechnic of Madrid* e-mail: oliver_alice@yahoo.esKey words: thermal energy, storage, PCM, gypsum board, building material,AbstractIn this research is demonstrated the suitability of including PCM in gypsum boards tomultiply their thermal energy storage capacity. So is evaluated and compared the thermalstorage capacity of several constructive materials, whose use and application is similar to thegypsum boards: paneling of a wall and partition wall.An experimental facility has been designed and operated for the study of the new compoundmaterial, exchanging heat with air. It has been studied the influence of different parametersand system variables (working temperature, air velocity, display of the phase changematerials, and location in the building…), to establish a latent heat storage system which -complemented with passive strategies (solar gains, natural ventilation) - reduces theacclimatization energy consumption in buildings.So, here we demonstrate that a gypsum board including a 44.5% in weight of phase changematerials (PCM) is able to store -in a 1.5 cm thick- 5 times the thermal energy of a currentgypsum board -with the same thickness-, and the same amount to 11.5 cm brickwork, in thecomfort temperature range (20-30 ºC), maintaining the mechanical and physical propertiesrequired by the regulations in force.The interest of this work, in terms of thermal storage, is focused on the application in buildingmaterials, gypsum, to reduce or even eliminate, depending on weather conditions where theyare placed, the heating and cooling loads.37º <strong>IAHS</strong> <strong>World</strong> <strong>Congress</strong> On Housing Science 110