The Three-tank Watergy Configuration

The objective of this paper is to propose a generic mathematical model, capable of support-ing the design of a custom Watergy plant and future testing of suited control algorithms. The subsystems of the Watergy system are an inside water tank, providing input water for the heat pump, accumu not sign lating watering water for plants, and acting like a buffer for the hydraulic opera-tions between tanks, a surface water tank, collecting rain waters, accumulating warm water when the outside tempera not sign ture is high and cold water when the outside temperature is low and an underground water tank, accumulating water at constant underground temperature.