Control methods for two-stage phase change energy storage Trombe walls and two-stage phase change energy storage Trombe walls

Abstract

This invention belongs to the field of building energy conservation technology and discloses a control method and a two-stage phase change energy storage Trombe wall. The control method includes calculating the heat storage saturation index based on real-time solar irradiance, louver blade wall temperature, and airflow channel temperature; generating a hysteresis bandwidth value based on the heat storage saturation index and calculating the upper and lower trigger limits; calculating a comprehensive thermal drive intensity index and comparing it with the upper and lower trigger limits to obtain the blade orientation command; calculating the initial target angle based on the orientation command and superimposing a negative bias compensation angle when there is an over-saturation risk to obtain the final target angle; and generating a drive command by combining the angle deviation dead zone and minimum action interval verification. This invention achieves adaptive coordination between the optical adjustment of the louvers and the phase change process of the phase change material, solving the problems of over-saturation and response lag caused by the lack of closed-loop feedback of heat storage saturation in existing technologies. It is applicable to the thermal management of passive solar buildings.

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