By Anna Magrini
In Europe, the development region bills for forty% of power intake which has a powerful effect on greenhouse fuel emissions. The ebook offers with effective methodologies aimed to lessen greenhouse gasoline emissions within the construction area. This contains analyses of the construction envelopes, the heating platforms, using solar power and the evaluation of the environmental and effort sustainability of the proposed options. After a quick advent to the actual basics excited about the learn, effects are offered to help cost effective technical techniques to advertise activities for power saving, within the most important fields and with the main monetary advantage.
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Additional info for Building Refurbishment for Energy Performance: A Global Approach
2 Fig. 11 Results for 12 and 17 walls (Hamburg). WF = wooden fibreboard. MW = mineral wool. PS = Polystyrene. PU = Polyurethane In Table 20, the comparison of the improvement percentage in terms of envelope energy performance is presented, according to the kind of insulation and its thickness L, the climatic conditions, and the wall type that is investigated.
Fig. 5 Glaser diagrams (condensation) for a November, b December, c January, d February and so on for the other layers. The vapour pressure values in the different interfaces are reported in Table 7. The calculations for October show that all values of the saturation pressure are higher than the vapour pressure in each interface and therefore no condensation occurs for the conditions of this month. Step 5 can be skipped. Step 6 The calculations are developed for the 12 months (Table 7) with the input data in Tables 4 and 5.
Regarding the dynamic thermal performance of the walls, the position of the insulation greatly influences the thermal inertia of the structure. The heat storage is determined by the properties of materials, which are involved in the heating transmission of the envelope, In general, the external insulation provides better results. As regards hygrometric properties, a higher thermal insulation undoubtedly involves a good improvement in terms of surface moisture problems. Nevertheless, the situation should be carefully assessed in terms of risk of interstitial condensation, especially when the insulating layer is located close to the internal side of the wall.
Building Refurbishment for Energy Performance: A Global Approach by Anna Magrini