Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7048129 | Applied Thermal Engineering | 2016 | 8 Pages |
Abstract
The heat transfer coefficient of the wall implanted with heat pipes (WIHP) is closely related to its energy saving potential. In this paper, the influence factors of heat pipe structure on heat transfer coefficient were analyzed to enhance the heat transfer performance of the WIHP, such as the working temperature, the ratio of the evaporating section length (RESL) and the diameter of the heat pipe. The results show that the average equivalent heat transfer coefficient (EHTC) of the WIHP reaches the maximum of 1.24 W/(m2 °C) at a RESL of 75%, and the RESL should be optimized based on the working-hours-weighted mean temperature. There is an approximately linear relationship between the average EHTC and the diameter of heat pipe. The energy saving potential of a typical building with the WIHP in Tianjin, China was analyzed, which shows that the WIHP has a great energy saving potential during the heating season.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Ronghua Tan, Zhigang Zhang,