Dynamic heat transfer characteristics of wall implanted with heat pipes in summer

The heat transfer characteristics of a wall implanted with heat pipes, a new passive natural energy utilization technology, significantly differ from that of an ordinary wall. A dynamic heat transfer model is established in this study via steady heat transfer experiment and theoretical analysis for the north wall implanted with heat pipes in summer months; relevant heat transfer characteristics are studied through dynamic simulation analysis. Results show that the inner temperature field of the north WIHP presents obvious upper and lower partitions in summer. The thermal response of the WIHP is faster than that of an ordinary wall. The delay time of the ordinary wall is higher than the WIHP by 1.38 h. The average temperature of the north WIHP is 2°C lower than that of an ordinary wall, which represents an effective improvement to the indoor thermal environment. The accumulative heat transfer capacity of the north WIHP is relatively high, at 50.7 kW/m2