期刊
ENERGY AND BUILDINGS
卷 70, 期 -, 页码 490-496出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2013.11.086
关键词
Storage tank; Inlet structure; Thermal stratification; Discharging efficiency
资金
- 12th Five Year National Science and Technology Support Key Project of China [2011BAJ03B05]
- Jiangsu Natural Science Foundation of China [BK2010199, BE2010747]
The utilization of the solar water heating system can reduce the conventional energy consumption of a building. A good inlet of the solar storage tank can enhance the thermal stratification and improve the thermal storage efficiency and discharging efficiency. Experiments were carried out to investigate the discharging performance of a rectangular storage tank with different inlet structures which were slotting-type inlet, direct inlet and shower-type inlet. This study aimed to provide guidance for the optimization of the inlet structure of water tank so that the efficiency of solar water heating system (SWHS) could be improved further. The effective discharging efficiency and effective discharging time were introduced to evaluate the performance of water tank with different inlet structures. The results showed that the slotting-type inlet exhibited the best thermal stratification and improved the discharging performance of the tank more effectively than the other two inlets. Energy saving potential of new inlet was also presented. (C) 2013 Elsevier B.V. All rights reserved.
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