Download Building Refurbishment for Energy Performance: A Global by Anna Magrini PDF

By Anna Magrini

In Europe, the development quarter bills for forty% of power intake which has a powerful impression on greenhouse gasoline emissions. The e-book bargains with effective methodologies aimed to lessen greenhouse fuel emissions within the development area. This comprises analyses of the development envelopes, the heating platforms, using solar power and the review of the environmental and effort sustainability of the proposed options. After a quick advent to the actual basics occupied with the examine, effects are awarded to help reasonably-priced technical suggestions to advertise activities for power saving, within the most crucial fields and with the main financial advantage.

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The difference between saturation and vapour pressure in November can be put in evidence: in the interface 3c-4, it can be observed that Pv [ Ps. The diagrams in Fig. 5 highlight the occurrence. Then, the month of November is the starting month for the calculation of the amount of condensation that forms at the interface between the two layers. Pv is plotted as a straight line between the surface values and the Ps lower value (in this case at the interface 3c-4). The difference between the two slopes represents the rate of condensed water.

10). The case study is a single dwelling in an intermediate level (adiabatic floor and ceiling). The main geometrical features are reported in Table 17. 44 W/(m2 K). In order to investigate the different hygrothermal behaviours of some representative wall typologies described in Sect. 6, three opaque envelope hypotheses were defined according to the age of the analysed construction, as reported in Table 18. The energy performance of the base case (without thermal insulation) was assessed according to the quasi-steady-state method presented in Sect.

In any case, the amount of condensation is moderate and lower than the maximum values for the materials involved. Wall 14, affected by interstitial condensation in the existing conditions and climate of Milan, becomes free of condensation for the same climate, if MW or WF is used. For PY, the amount of assessed condensation reduces gradually to zero, but it occurs for 1–2 cm. Walls 15, 16 and 17 present condensation for MW (for thickness [4, [5 and [4 cm, respectively), for WF ([7, [8, [5 cm) and for PY (1 cm only for 15 and 16) in the climatic conditions of Milan.

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