Title :
Study on Heat Storage Tank of Solar Heating System
Author :
Wang Dengjia ; Liu Yanfeng
Author_Institution :
Xi´an Univ. of Archit. & Technol., Xi´an, China
Abstract :
The relationships among solar radiation intensity, volume of heat storage tank, heating load and heat storage temperature difference has been revealed by the theoretical analysis on heat storage tank in active solar water heating system. Heat storage volume can be concluded with the simulation and analysis on solar water heating system in northwest area of China. And then, the nodal model of heat storage tank is simulated in different conditions with the help of CFD. The results show that the heat storage volume is diminished with increasing of heat storage temperature difference, and for practical project, the recommended values of heat storage volume in different cities are given. The lower water velocity at the inlet of heat storage tank is, the more obviously the layers are, and the recommended water velocity is between 0.01 and 0.05m/s.
Keywords :
computational fluid dynamics; solar power stations; water; CFD; China; computational fluid dynamics; heat storage tank; heating load; nodal model; solar water heating system; water velocity; CFD; heat storage tank; heating load; solar water heating; temperature stratification;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2010 International Conference on
Conference_Location :
ChangSha
Print_ISBN :
978-0-7695-4286-7
DOI :
10.1109/ICDMA.2010.420
