Abstract
A new compound enhancement method was proposed to improve the molten salt latent heat storage (LHS) performance. The method is consisted of multiple phase change materials (PCMs) and enhanced tubes. Numerical studies on the LHS performance were performed for the proposed model. The results show that the compound enhancement method can achieve better overall synergy enhancement effect. For the basic case of smooth tube and single PCM, the melting time is 356.4 min. However, the melting time are 225.5 min for the case of dimpled tube and multiple PCMs, 200.7 min for the case of cone-finned tube and multiple PCMs, and 186.4 min for the case of helically-finned tube and multiple PCMs, which are reduced about 36.7%, 43.7% and 47.7% respectively. And appropriately selecting the multiple PCMs, both the LHS rate and the TES capacity can be improved.
| Original language | English |
|---|---|
| Pages (from-to) | 2343-2346 |
| Number of pages | 4 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 34 |
| Issue number | 12 |
| Publication status | Published - Dec 2013 |
| Externally published | Yes |
Keywords
- Enhanced tube
- Latent heat storage
- Multiple phase change materials
- Synergy enhancement