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Performance of Thermosyphon Solar Water Heaters in Series

Author

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  • Yi-Mei Liu

    (Energy Research Center, National Cheng Kung University, 2500 Section 1, Chung-Cheng South Road, Guiren, Tainan 711, Taiwan)

  • Kung-Ming Chung

    (Energy Research Center, National Cheng Kung University, 2500 Section 1, Chung-Cheng South Road, Guiren, Tainan 711, Taiwan)

  • Keh-Chin Chang

    (Energy Research Center, National Cheng Kung University, 2500 Section 1, Chung-Cheng South Road, Guiren, Tainan 711, Taiwan)

  • Tsong-Sheng Lee

    (Energy Research Center, National Cheng Kung University, 2500 Section 1, Chung-Cheng South Road, Guiren, Tainan 711, Taiwan)

Abstract

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.

Suggested Citation

  • Yi-Mei Liu & Kung-Ming Chung & Keh-Chin Chang & Tsong-Sheng Lee, 2012. "Performance of Thermosyphon Solar Water Heaters in Series," Energies, MDPI, vol. 5(9), pages 1-13, August.
    • Handle: RePEc:gam:jeners:v:5:y:2012:i:9:p:3266-3278:d:19779
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    References listed on IDEAS

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