Performance of Thermosyphon Solar Water Heaters in Series

Energies

Yi-Mei Liu²  Kung-Ming Chung¹  Keh-Chin Chang² 

[1] Energy Research Center, National Cheng Kung University, 2500 Section 1, Chung-Cheng South Road, Guiren, Tainan 711, Taiwan;

关键词: thermosyphon solar water heater;    temperature stratification;    water draw profile;    thermal performance;   

DOI  :  10.3390/en5093266

来源: mdpi

【 摘 要 】

More than a single thermosyphon solar water heater may be employed in applications when considerable hot water consumption is required. In this experimental investigation, eight typical Taiwanese solar water heaters were connected in series. Degree of temperature stratification and thermosyphon flow rate in a horizontal tank were evaluated. The system was tested under no-load, intermittent and continuous load conditions. Results showed that there was stratification in tanks under the no-load condition. Temperature stratification also redeveloped after the draw-off. Analysis of thermal performance of the system was conducted for each condition.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.