In European countries houses represents 36% of Co2 emissions. To reduce these emissions Bioclimatic housing is proposed. A series of solutions are studied in this project to acquire a low energy consumption building.
Viability studies and guidelines of bioclimatic houses are given for the realization of this house in the Nordic countries. A study of insulating materials and composition of the enclosures of the bioclimatic house is carried out complying with the Swedish norm. To achieve the building envelope criteria of high insulation and passive house construction are followed.
Calculations of thermal transmittance, considering the geographical situation of the house, in a Nordic country, like Sweden are performed. One method to obtain the energy demand of buildings is to use computer software. A graphic interface called DesignBuilder v 3.01. This software is utilized to study the importance of insulation and orientation in relation to the energy demand in a bioclimatic house.
In accordance with the bioclimatic construction, renewable energy sources are chosen to supply electricity to the dwelling. This is to reduce the environmental impact and the ecological footprint of the household. To achieve this, three different alternatives are chosen. In addition, another goal is to study economic viability and possible agreements with an energy company in order to sell excess of energy.
A final result of the study and evaluation of the three different systems to provide energy and passive house strategies is obtained. According to the economic aspect, the Bioclimatic house should have a passive house envelope, facing south and a system combining of windmill turbine, solar photovoltaic panels and geothermal energy.
The construction of bioclimatic houses helps to reduce the anthropogenic CO 2 emissions. In addition, the construction of bioclimatic houses is one way to achieve an ecologically sustainable future.
Source: University of Skövde
Author: Olmeda Noguera, Eduardo | Andrés Cervera, Santiago