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Energy consumption analysis on a dedicated outdoor air system with rotary desiccant wheel

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  • Liu, Weiwei
  • Lian, Zhiwei
  • Radermacher, Reinhard
  • Yao, Ye

Abstract

A dedicated outdoor air system (DOAS) with rotary desiccant wheel is the combination of a desiccant dehumidification system and a vapor compression refrigeration system. An energy consumption model of this hybrid DOAS is established for its analysis. Coefficient of performance, COP, is appropriately defined for evaluation on performance of the hybrid DOAS. The results indicate that, compared with a conventional DOAS, energy savings are possible for the suggested DOAS, when solar energy or natural gas is used for regeneration. Ventilation air flow rate, temperature or humidity of outdoor air, as well as regeneration-to-process air ratio, influence the energy consumption and the COP of the hybrid DOAS, greatly.

Suggested Citation

  • Liu, Weiwei & Lian, Zhiwei & Radermacher, Reinhard & Yao, Ye, 2007. "Energy consumption analysis on a dedicated outdoor air system with rotary desiccant wheel," Energy, Elsevier, vol. 32(9), pages 1749-1760.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:9:p:1749-1760
    DOI: 10.1016/j.energy.2006.11.012
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    References listed on IDEAS

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    1. Zadpoor, Amir Abbas & Golshan, Ali Hamedani, 2006. "Performance improvement of a gas turbine cycle by using a desiccant-based evaporative cooling system," Energy, Elsevier, vol. 31(14), pages 2652-2664.
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    1. Jani, D.B. & Mishra, Manish & Sahoo, P.K., 2016. "Solid desiccant air conditioning – A state of the art review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 60(C), pages 1451-1469.
    2. Yew Khoy Chuah & Jun Jie Yang, 2020. "A Integrated Dedicated Outdoor Air System to Optimize Energy Saving," Sustainability, MDPI, vol. 12(3), pages 1-12, February.
    3. Ali Mandegari, M. & Pahlavanzadeh, H., 2009. "Introduction of a new definition for effectiveness of desiccant wheels," Energy, Elsevier, vol. 34(6), pages 797-803.
    4. Bi, Yin & Yang, Wansheng & Zhao, Xudong, 2018. "Numerical investigation of a solar/waste energy driven sorption/desorption cycle employing a novel adsorbent bed," Energy, Elsevier, vol. 149(C), pages 84-97.
    5. Yang, Liu & Weng, Wenbing & Deng, Shiming, 2020. "A modeling study on a direct expansion based air conditioner having a two-sectioned cooling coil," Applied Energy, Elsevier, vol. 278(C).
    6. Baniyounes, Ali M. & Ghadi, Yazeed Yasin & Rasul, M.G. & Khan, M.M.K., 2013. "An overview of solar assisted air conditioning in Queensland's subtropical regions, Australia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 26(C), pages 781-804.
    7. Baniyounes, Ali M. & Rasul, M.G. & Khan, M.M.K., 2013. "Assessment of solar assisted air conditioning in Central Queensland's subtropical climate, Australia," Renewable Energy, Elsevier, vol. 50(C), pages 334-341.
    8. Ruivo, Celestino R. & Goldsworthy, Mark & Intini, Manuel, 2014. "Interpolation methods to predict the influence of inlet airflow states on desiccant wheel performance at low regeneration temperature," Energy, Elsevier, vol. 68(C), pages 765-772.
    9. Zhu, Jun & Chen, Wu, 2014. "Energy and exergy performance analysis of a marine rotary desiccant air-conditioning system based on orthogonal experiment," Energy, Elsevier, vol. 77(C), pages 953-962.
    10. Zheng, X. & Ge, T.S. & Wang, R.Z., 2014. "Recent progress on desiccant materials for solid desiccant cooling systems," Energy, Elsevier, vol. 74(C), pages 280-294.
    11. Lee, S.H. & Lee, W.L., 2013. "Site verification and modeling of desiccant-based system as an alternative to conventional air-conditioning systems for wet markets," Energy, Elsevier, vol. 55(C), pages 1076-1083.
    12. Qi, Ronghui & Tian, Changqing & Shao, Shuangquan, 2010. "Experimental investigation on possibility of electro-osmotic regeneration for solid desiccant," Applied Energy, Elsevier, vol. 87(7), pages 2266-2272, July.
    13. Baniyounes, Ali M. & Liu, Gang & Rasul, M.G. & Khan, M.M.K., 2012. "Analysis of solar desiccant cooling system for an institutional building in subtropical Queensland, Australia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(8), pages 6423-6431.
    14. Cheon, Seong-Yong & Lim, Hansol & Jeong, Jae-Weon, 2019. "Applicability of thermoelectric heat pump in a dedicated outdoor air system," Energy, Elsevier, vol. 173(C), pages 244-262.
    15. Enteria, Napoleon & Mizutani, Kunio, 2011. "The role of the thermally activated desiccant cooling technologies in the issue of energy and environment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(4), pages 2095-2122, May.
    16. Zhang, Tao & Liu, Xiaohua & Jiang, Yi, 2014. "Development of temperature and humidity independent control (THIC) air-conditioning systems in China—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 29(C), pages 793-803.
    17. Singh, Ashutosh & Kumar, Sunil & Dev, Rahul, 2019. "Studies on cocopeat, sawdust and dried cow dung as desiccant for evaporative cooling system," Renewable Energy, Elsevier, vol. 142(C), pages 295-303.
    18. Koichi Kawamoto & Wanghee Cho & Hitoshi Kohno & Makoto Koganei & Ryozo Ooka & Shinsuke Kato, 2016. "Field Study on Humidification Performance of a Desiccant Air-Conditioning System Combined with a Heat Pump," Energies, MDPI, vol. 9(2), pages 1-22, January.
    19. De Antonellis, Stefano & Joppolo, Cesare Maria & Molinaroli, Luca & Pasini, Alberto, 2012. "Simulation and energy efficiency analysis of desiccant wheel systems for drying processes," Energy, Elsevier, vol. 37(1), pages 336-345.
    20. Sheng, Ying & Zhang, Yufeng & Zhang, Ge, 2015. "Simulation and energy saving analysis of high temperature heat pump coupling to desiccant wheel air conditioning system," Energy, Elsevier, vol. 83(C), pages 583-596.
    21. Çerçi, Kamil Neyfel & Oliveira Silva, Ivo Rafael & Hooman, Kamel, 2024. "Investigation of the energetic and exergetic performance of hybrid rotary desiccant-vapor compression cooling systems using different refrigerants," Energy, Elsevier, vol. 302(C).

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