FINAL PROJECT: HOSTEL HALMSTAD-SWEDEN - RiuNet

María Molina Martín
ENERGY STUDY
According to the regulations: BBR, Section 9 Energy management: Buildings
shall be designed so that the specific energy consumption of the building does
not exceed:
- 110 kWh per m2 of floor area (A temp) per year in the Southern climate zone.
- 130 kWh per m2 of floor area (A temp) per year in the Northern climate zone.
In our case, the building is located in Halmstad, southern Sweden, therefore the
energy consumption shall not exceed 110 kWh/m2.
The Specific Energy is calculated using the following formula:
Energy consumption of the building (kW·h/year)
Floor area Atemp (m2)
In order to calculate the energy consumption of the building it is necessary to
know the areas and U-values of the enclosing parts of the building in contact
with heated indoor air. These parts are:
- Ground floor
- Roof
- Exterior walls (facades)
- Windows
- Exterior doors
U-value of the facades can be found in the catalog ISOVER, but we have
calculated, as with the other parts of the building.
First we calculate the U value of the facade, and we need some data in the
table below: Rse and Rsi are the thermal resistances in the indoor and outdoor
surfaces, respectively, taken from the table below, according to the position of
the element which is being calculated, heat flow direction and its location in the
building.
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