Diffuser design influence on the performance of solar thermal storage tanks
Article first published online: 14 MAR 2007
Copyright © 1991 John Wiley & Sons, Ltd.
International Journal of Energy Research
Volume 15, Issue 7, pages 525–534, September 1991
How to Cite
Al-Maraffie, A., Al-Kandari, A. and Ghaddar, N. (1991), Diffuser design influence on the performance of solar thermal storage tanks. Int. J. Energy Res., 15: 525–534. doi: 10.1002/er.4440150702
- Issue published online: 14 MAR 2007
- Article first published online: 14 MAR 2007
- Manuscript Revised: 20 SEP 1990
- Manuscript Received: 26 JUL 1990
- Solar thermal storage;
- Single-tubed diffusers;
- Multitubed diffusers
The effect of the inlet and outlet diffuser design on the performance of thermal stratification in a vertical water tank is investigated experimentally. Two sets of diffusers are used in the experiments, which are conducted with a moving thermocline (both up and down) for different flow rates. The results indicate that the preservation of the initial thermocline is excellent when using a settling mesh. It is also shown that the extraction efficiency of the tank is higher at low flow rates during charging, whereas it is lower at low flow rates during discharging.