Abstract
As a climate-responsive building, the building integrated heat pipes (BIHP) can greatly improve the indoor thermal environment during the local heating season, utilizing the thermal diode characteristic and ultrahigh equivalent thermal conductivity of the L-shaped flat gravity heat pipe. The thermophysical properties of the internal envelope greatly influence the heating effect, and the utilization potentiality of BIHP varies in locations with diverse climate resources. In this paper, the utilization effects of BIHP at 61 locations in severe cold and cold regions of China are investigated. Improved backtracking search and particle swarm optimization are used to obtain the optimal heating effect and the corresponding thermophysical properties of the internal envelope at zero-carbon heating locations and non-zero-carbon heating locations, respectively. The relationship between the improvement degree of thermal discomfort and the solar radiation over temperature difference is studied, and the utilization potentiality map and zoning of BIHP are obtained. This study is of great significance for promoting the application of climate-responsive BIHP to effectively and efficiently utilize solar energy to reach zero-carbon heating.
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