Passive2:Dialog Climate

Unlike WUFI®Plus, WUFI®Passive does not hourly data for calculation.

Localization

Localization

The climate file is chosen in the localization tab. WUFI's predefined climate is a reference year of germany and can be altered by using the "user defined" tab in the scope and by browsing the required climate file.
Due to WUFI®Passive not using hourly data, different climate files and formations are needed. So far WUFI can read .txt and .xls files as seen in the screens below and in this movie. To obtain these files/formation you can use meteonorm.

Example .txt

Example .xls

Climate

Climate

Temperature

The first section shows the mean temperature of each month, which is also shown in the left graphic. On the very right the extreme weather conditions are shown, which are needed to calculate the heating load of the building.

Solar radiation

The second section contains the mean monthly solar irradiation, seperated into the four cardinal points. The right picture also shows the course of the graph and again on the very right, there are extreme weather conditions.

Primary energy/CO2-factor

In this tab, you can see and set the primary energy factor (PEF) and the CO2-emission factor (CO2EF).

The PEF multiplies with the energy demand and varies depending on the chosen material, because the PEF is influenced by both the production process and the transportation of the energy source.

The CO2EF converts the energy demand into an equivalent amount of CO2. These two factors are important when looking into the sustainability of the passive house.


Though differences are minor, WUFI knows 3 different standarts regarding the values of this table. If you do have different ones, you can set your own table in the "user defined" section.