1.1. Presentation of the installation

The aim of our solar cooling installation is to cool four classrooms (total area = 170 m2). We can notice that there are not backup systems and the average temperature in the classrooms is not steady depending of the outside conditions (Tout — Tin = 5 to 7 °C). We can see all main components on fig. 1:

1. an absorption chiller (frigorific power = 30 kW),

2. 36 solar collectors (total area = 90m2),

3. a cooling tower (cooling power = 80 kW),

4. a hot tank (V = 1500 L) and a cold tank (V = 1000 L),

5. 13 cold fans which provide frigorific power to the classrooms.