ZEMCH 2015 - International Conference Proceedings | Page 462

Energy efficiency upgrading stage
During this stage the selected EST (PHPP for this case) is used. Each step of the energy efficiency
upgrading stage is presented with a plan and a section where the bioclimatic features can be
represented. Moreover a graphic and a table show the building parameters.

DA simulation

First, the original plan DA is simulated in order to have a base parameter for the further simulations. The initial design is conceived to be made with traditional construction systems such as
concrete bricks, reason why the fabric U-values are deficient. (Table 1) (Figs. 13,14).
Table 1: DA building parameters.
Building
parameters

Site

DA

Londrina, Brazil

Treated floor External wall
area TFA
U-value
(m2)
(W/m2K)

54.40

2.172

Windows
(including
frames)
U-value
(W/m2K)

Roof surface
U-value
(W/m2K)

Floor slab
U-value
(W/m2K)

Average
thermal
envelope

6.38

3.81

2.548

3.088

Figure 13: DA plan, section and heat sources.

Figure 14: Monthly cooling demand (left) and annual heating demand (right).

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ZEMCH 2015 | International Conference | Bari - Lecce, Italy