Patent ID: 6699120
Filing Date: 2004-03-02
Classification: E05Y,F24F

Abstract:
A computer controlled method of controlling internal climate comfort by natural ventilation in a living room in a building occupied by human users, said room being connected with the outside of the building through at least two external openings (1,2) with associated passive ventilation devices, which are individually adjustable by means of associated operator units (4,5) and being further connected through at least one internal opening (3) with another room of the building, said natural ventilation being determined from a constant physical parameter of said living room and measured parameters relating to wind load or air pressure and to difference (&Dgr;T) between indoor and outdoor temperatures (TI,To) to approximate a target air exchange rate for said living room, characterized in that an adjustment parameter (S1,S2) for the operator unit (4,5) of each of said passive ventilation devices is determined to provide an air exchange (Qf) to the room on the basis of said target air exchange rate, said adjustment parameters being further modified by application of a set of comfort functions (&mgr;), which are established individually for each of said external and internal openings (1,2,3), said comfort functions (&mgr;) being determined to take account at least of outside and inside temperature (TI,To), air exchange (Qf) and wind load or air pressure and direction and the comfort functions of said set being weighed by fuzzy optimization to produce optimized and substantially equally distributed comfort conditions in positions in the living room adjacent each of said openings.