Dynamic heat transfer analysis of the wall implanted with heat pipes in summer

ABSTRACT The wall implanted with heat pipes overcomes the contradiction between building energy efficiency and wall insulation by transferring the radiant heat from the sun to room during heating season and transferring the heat from room to outside during cooling season. This paper establishes the dynamic thermal transfer model of wall implanted with heat pipes (WIHP) in summer and simulates the dynamic heat transfer process. As revealed by the results, WIHP works 6.2 hours per day on average during the cold season. The rise in the average heat transfer from indoor to outdoor was measured to be 16.66 W/m2, and the surface temperature was found to drop by 2°C on average as compared to the conventional wall. In comparison, the new wall exhibited an improved capability in terms of heat dissipation, indicating that it was effective in lowering energy consumption and boosting indoor thermal comfort.