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Experimental study of the performance of a circular tube solar collector with closed-loop oscillating heat-pipe with check valve (CLOHP/CV)

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  • Rittidech, S.
  • Donmaung, A.
  • Kumsombut, K.

Abstract

This paper describes the performance of a circular glass tube solar collector with a set of closed-loop oscillating heat-pipes with check valves (CLOHP/CV). The assembly was divided into three sections, i.e. circular glass tube, adiabatic gap and condenser water tank. A circular 10-set glass tube solar collector of 0.058m diameter and 1.50m length was housed on a collecting plate. The inside circular glass tube consisted of a CLOHP/CV and collecting plate. The adiabatic gap was 0.05m. The condenser water tank was made from a 0.03×0.05m2 zinc sheet. The CLOHP/CV consisted of the collecting plate cover with inner diameter of 0.003m and 26.40m total length per set, and it contained two check valves with evaporator 1.50m long, adiabatic gap 0.05m and condenser 0.30m long. R-134a was used as the working fluid with filling ratio of 50%. The CLOHP/CV arrangement was aligned at an inclination angle of 18 degrees from the horizontal plane, with 6 turns per set. A 0.001m thick aluminum sheet was used to make a collecting plate with 0.10×1.50m2 test area. Efficiency evaluations were conducted during daylight hours over a 2-month period and included extensive monitoring and recording of temperatures with type-K thermocouples placed at key locations throughout the system. The results confirmed the anticipated fluctuation in collector efficiency dependent on the time of day, solar energy irradiation, ambient temperature and circular tube surface mean temperature. An efficiency of approximately 76% was achieved, which correlates with the efficiency of the more expensive heat-pipe system. The CLOHP/CV system offers the additional benefits of corrosion-free operation and absence of freezing during winter months.

Suggested Citation

  • Rittidech, S. & Donmaung, A. & Kumsombut, K., 2009. "Experimental study of the performance of a circular tube solar collector with closed-loop oscillating heat-pipe with check valve (CLOHP/CV)," Renewable Energy, Elsevier, vol. 34(10), pages 2234-2238.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:10:p:2234-2238
    DOI: 10.1016/j.renene.2009.03.021
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    References listed on IDEAS

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    1. Hussein, H.M.S. & Mohamad, M.A. & El-Asfouri, A.S., 2001. "Theoretical analysis of laminar-film condensation heat transfer inside inclined wickless heat pipes flat-plate solar collector," Renewable Energy, Elsevier, vol. 23(3), pages 525-535.
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    Cited by:

    1. Qu, Jian & Wang, Qian, 2013. "Experimental study on the thermal performance of vertical closed-loop oscillating heat pipes and correlation modeling," Applied Energy, Elsevier, vol. 112(C), pages 1154-1160.
    2. Li, Hong & Liu, Hongyuan & Li, Min, 2022. "Review on heat pipe based solar collectors: Classifications, performance evaluation and optimization, and effectiveness improvements," Energy, Elsevier, vol. 244(PA).
    3. Alhuyi Nazari, Mohammad & Ahmadi, Mohammad H. & Ghasempour, Roghayeh & Shafii, Mohammad Behshad, 2018. "How to improve the thermal performance of pulsating heat pipes: A review on working fluid," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 630-638.
    4. Deng, Yuechao & Wang, Wei & Zhao, Yaohua & Yao, Liang & Wang, Xinyue, 2013. "Experimental study of the performance for a novel kind of MHPA-FPC solar water heater," Applied Energy, Elsevier, vol. 112(C), pages 719-726.
    5. He, Wei & Hong, Xiaoqiang & Zhao, Xudong & Zhang, Xingxing & Shen, Jinchun & Ji, Jie, 2015. "Operational performance of a novel heat pump assisted solar façade loop-heat-pipe water heating system," Applied Energy, Elsevier, vol. 146(C), pages 371-382.
    6. Wang, Zhangyuan & Yang, Wansheng & Qiu, Feng & Zhang, Xiangmei & Zhao, Xudong, 2015. "Solar water heating: From theory, application, marketing and research," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 68-84.
    7. Han, Xiaohong & Wang, Xuehui & Zheng, Haoce & Xu, Xiangguo & Chen, Guangming, 2016. "Review of the development of pulsating heat pipe for heat dissipation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 59(C), pages 692-709.
    8. Xu, Yanyan & Xue, Yanqin & Qi, Hong & Cai, Weihua, 2021. "An updated review on working fluids, operation mechanisms, and applications of pulsating heat pipes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).
    9. Sabiha, M.A. & Saidur, R. & Mekhilef, Saad & Mahian, Omid, 2015. "Progress and latest developments of evacuated tube solar collectors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 1038-1054.
    10. Shukla, Ruchi & Sumathy, K. & Erickson, Phillip & Gong, Jiawei, 2013. "Recent advances in the solar water heating systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 173-190.
    11. Shafieian, Abdellah & Khiadani, Mehdi & Nosrati, Ataollah, 2018. "A review of latest developments, progress, and applications of heat pipe solar collectors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 95(C), pages 273-304.
    12. Alhuyi Nazari, Mohammad & Ahmadi, Mohammad H. & Ghasempour, Roghayeh & Shafii, Mohammad Behshad & Mahian, Omid & Kalogirou, Soteris & Wongwises, Somchai, 2018. "A review on pulsating heat pipes: From solar to cryogenic applications," Applied Energy, Elsevier, vol. 222(C), pages 475-484.
    13. Ling, Yun-Zhi & Zhang, Xiao-Song & Wang, Feng & She, Xiao-Hui, 2020. "Performance study of phase change materials coupled with three-dimensional oscillating heat pipes with different structures for electronic cooling," Renewable Energy, Elsevier, vol. 154(C), pages 636-649.
    14. Abokersh, Mohamed Hany & El-Morsi, Mohamed & Sharaf, Osama & Abdelrahman, Wael, 2017. "An experimental evaluation of direct flow evacuated tube solar collector integrated with phase change material," Energy, Elsevier, vol. 139(C), pages 1111-1125.
    15. Wang, Zeyu & Diao, Yanhua & Zhao, Yaohua & Chen, Chuanqi & Liang, Lin & Wang, Tengyue, 2020. "Thermal performance of integrated collector storage solar air heater with evacuated tube and lap joint-type flat micro-heat pipe arrays," Applied Energy, Elsevier, vol. 261(C).
    16. Aref, Latif & Fallahzadeh, Rasoul & Shabanian, Seyed Reza & Hosseinzadeh, Mojtaba, 2021. "A novel dual-diameter closed-loop pulsating heat pipe for a flat plate solar collector," Energy, Elsevier, vol. 230(C).

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