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Closed-ended oscillating heat-pipe (CEOHP) air-preheater for energy thrift in a dryer

Author

Listed:
  • Rittidech, S.
  • Dangeton, W.
  • Soponronnarit, S.

Abstract

The CEOHP air-preheater consisted of two main parts, i.e. the rectangular house casing and the CEOHP. The house casing was designed to be suitable for the CEOHP. The inside house casing divided the CEOHP into three parts, i.e. the evaporator, the adiabatic section and condenser section. The CEOHP air-preheater design employed copper tubes: thirty-two sets of capillary tubes with an inner diameter of 0.002 m, an evaporator and a condenser length of 0.19 m, and each of which has eight meandering turns. The evaporator section was heated by hot-gas, while the condenser section was cooled by fresh air. In the experiment, the hot-gas temperature was 60, 70 or 80 °C with the hot-gas velocity of 3.3 m/s. The fresh-air temperature was 30 °C. Water and R123 was used as the working fluid with a filling ratio of 50%. It was found that, as the hot-gas temperature increases from 60 to 80 °C, the thermal effectiveness slightly increases. If the working fluid changes from water to R123, the thermal effectiveness slightly increases. The designed CEOHP air-preheater achieves energy thrift.

Suggested Citation

  • Rittidech, S. & Dangeton, W. & Soponronnarit, S., 2005. "Closed-ended oscillating heat-pipe (CEOHP) air-preheater for energy thrift in a dryer," Applied Energy, Elsevier, vol. 81(2), pages 198-208, June.
    • Handle: RePEc:eee:appene:v:81:y:2005:i:2:p:198-208
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    Citations

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    Cited by:

    1. Meena, P. & Rittidech, S. & Poomsa-ad, N., 2007. "Closed-loop oscillating heat-pipe with check valves (CLOHP/CVs) air-preheater for reducing relative humidity in drying systems," Applied Energy, Elsevier, vol. 84(4), pages 363-373, April.
    2. Jiaqiang, E. & Zhao, Xiaohuan & Liu, Haili & Chen, Jianmei & Zuo, Wei & Peng, Qingguo, 2016. "Field synergy analysis for enhancing heat transfer capability of a novel narrow-tube closed oscillating heat pipe," Applied Energy, Elsevier, vol. 175(C), pages 218-228.
    3. 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.
    4. Zeng, M. & Du, L.X. & Liao, D. & Chu, W.X. & Wang, Q.W. & Luo, Y. & Sun, Y., 2012. "Investigation on pressure drop and heat transfer performances of plate-fin iron air preheater unit with experimental and Genetic Algorithm methods," Applied Energy, Elsevier, vol. 92(C), pages 725-732.
    5. Daghigh, Roonak & Shafieian, Abdellah, 2016. "An experimental study of a heat pipe evacuated tube solar dryer with heat recovery system," Renewable Energy, Elsevier, vol. 96(PA), pages 872-880.
    6. Meena, P. & Rittidech, S. & Poomsa-ad, N., 2007. "Application of closed-loop oscillating heat-pipe with check valves (CLOHP/CV) air-preheater for reduced relative-humidity in drying systems," Applied Energy, Elsevier, vol. 84(5), pages 553-564, May.
    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. Srimuang, W. & Amatachaya, P., 2012. "A review of the applications of heat pipe heat exchangers for heat recovery," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(6), pages 4303-4315.
    9. Jia, Yuting & Alva, Guruprasad & Fang, Guiyin, 2019. "Development and applications of photovoltaic–thermal systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 102(C), pages 249-265.
    10. 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.

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