Passive:First Steps

Example Case
This example will give you an easy step by step guide, on how to input a new case in WUFI®Passive. It will be a very easy case and is inspired by the introduction movie. For more advanced stuff, go to the advanced example.

Step Zero: Case 1

In contrast to WUFI®Plus, this section does not contain any essential data but you can name your project and add some remarks.

Figure 1: Case 1

Step One: Climate and Localization

Figure 2: Climate

WUFI Passive standart climate is the german reference climate as in DIN 4108-6. In our case we will use climate data from Hannover. Select the "user defined" scope and press the browse button. After you input some valid data, the climate tab will show some graphs about temperature and radiation. Remember that WUFI®Passive needs a special format of climate files, you can see it in the previos link or in this movie.
If you dont have any climate files formated this way, you can switch to WUFI®Plus and input the climate file there. Detailed instrucitons for this can be found here.

Step Two: Building geometry

There are 3 ways to define a building in WUFI®Passive, the easiest one being the building wizard for very simple buildings or spaces. The two other ways are verticles and Skecthup, which work way better if you want to build a more complex building.
For our example we will use a simple room with an unheated attic and a slab on grade zone.

Building wizard and orientation

We will add 4 windows on the south side using the visualization box in the bottom left corner. Click the orange boxed "Windows/openings" button and a new page will appear. Here click the green boxed button "Edit List" and insert the windows as seen in the picture.

How to input windows

Be aware that the coordinate system of the chosen wall starts in the bottom left and the X’ – axis is the orientation of the window in horizontal direction and the Y’ – axis in vertical direction.
There is also a movie about this topic.