Thermal Inertia Effect in Old Buildings

Orosa, J. A.; T., Carpente
February 2009
European Journal of Scientific Research;Feb2009, Vol. 27 Issue 2, p228
Academic Journal
This paper discusses thermal inertia effect on indoor air conditions in Northwest of Spain buildings. In a previous paper [1, 2] we have demonstrated that permeable coverings improve indoor conditions in spite of the use of an air barrier and less permeable coverings such as wood or concrete. This theory would allow, with a more intelligent design, energy saving in indoor air renovation. Other authors [3] suggested that constructive systems with high thermal inertia provide more comfortable environment and buildings with low energy consumption as showed. For example, [5] showed that thermal inertia has an influence on the annual energy requirement fro heating of a house located in a country with a northern climate. By increasing the massive wood content at the inner surfaces of the construction, the thermal inertia is increased and the specific energy requirement is lower than it is for a lightweight construction. The lowest specific energy requirement is obtained with an extremely heavy concrete construction. Furthermore, Hed et al. [4] showed that phase change materials could be used to change the thermal inertia of buildings with a clear effect on indoor air temperatures during the day. These two effects must be analysed in different buildings constructions.


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