| Title |
An Experimental Study on the Heat Transfer Characteristics of a Finned-Tube Heat Exchanger in a PCM Thermal Energy Storage System |
| Authors |
Dong Il Jung ; Min Chang ; Yongchan Kim |
| DOI |
http://dx.doi.org/10.6110/KJACR.2016.28.1.015 |
| Keywords |
상변화물질 ; 핀-관 열교환기 ; 유용도 PCM ; Finned-tube heat exchanger ; Effectiveness |
| Abstract |
Phase change materials (PCM) are able to store a large amount of latent heat, and can be applied to thermal energy storage systems. In a PCM, it takes a long time to store heat in the storage system because of the low thermal conductivity. In this study, a finned-tube-in-tank heat exchanger was applied to a PCM thermal energy storage system to increase heat transfer efficiency. The effects of geometric and operating parameters were investigated, and the results were compared with those of the tube-in-tank heat exchanger. The finned-tube-in-tank heat exchanger showed higher heat transfer effectiveness than the tube-in-tank heat exchanger. The heat exchange effectiveness of the storage tank was determined as a function of the average NTU. |