Low Order Hybrid Model for Control Design of an Adsorption Facade System for Solar Cooling

The building sector is responsible for a large share of the world's resource and energy consumption. A lot of energy is spend to climatize buildings, thus leading to high associated CO2 emissions. As a climate friendly solution, a solar driven facade-integrated system based on adsorption can be used to sustainably cool the interior. A hybrid model based on mass and energy balances is introduced, which describes the working phases of the adsorption facade system and the dynamics in each phase. The system runs in a daily cycle that starts with a regeneration phase in which solar radiation is used to charge the system for the cooling phase. Numerical simulations are conducted to analyze the behavior of the controlled system and give an outlook on control requirements for design and construction of the adsorption facade system.