Humidity and temperature control in an evaporative cooling system of a poultry house

Abstract

This paper presents a mathematical model and a robust control technique for temperature andhumidity control in an evaporative cooling system of a poultry house. The model was considered frommass and energy balance relations of air and water in the system. To validate the mathematical model,its responses were compared with a real system by using a set of feed forward experimental signals.Additionally, the well known sliding mode control with decoupling control law was also applied to themodel. The simulation in case of summer conditions shows its behavior and demonstrates the ability ofthe proposed control technique in order to compensate for the changing ambient air conditions aroundthe house.