Design of Greenhouse Heat Control Scheme: Uniform Heat Transfer Approach

This paper presents a control scheme of a uniform heating algorithm reflecting the heat transfer characteristics in the greenhouse. This paper proposes an optimal heat pipe control scheme which considers four-factor: 1) heat water temperature 2) volume heating load 3) emitting heating load and 4) heating load on heat pipe. These coefficients are used to calculate the heating water temperature based on fuzzy control. The proposed control scheme has been tested in a real greenhouse.