Passive cooling system of main control room in nuclear power plants based on phase change cool storage

In order to improve the cool storage capacity and thermal comfort level of the emergency habitable system of the main control room in the existing nuclear power plant, a passive cooling system of the main control room in the nuclear power plant based on the shaped phase change cool storage materials is proposed. Based on the distribution of heating load in the main control room, the cooling system is targeted to arrange the corresponding passive cooling devices containing shaped phase change materials between the roof and the ceiling, the interior wall, the bottom surface of the floor and the circulating air duct in the main control room, so as to realize the accurate control of the temperature of the main control room under the accident condition. The passive cooling system does not need to introduce additional cold sources and pipes, has strong reliability, does not damage the main structure, and can be flexibly arranged. It solves the problems of small time margin and poor thermal comfort of the passive heat trap in the existing main control room.