IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v299y2024ics0360544224013100.html
   My bibliography  Save this article

Solar regenerated carbon-based composite desiccant coated heat exchangers for air dehumidification

Author

Listed:
  • Bianfeng, Yang
  • Cong, Wang
  • Ji, Xu
  • Yuan, Yang
  • Yingxu, Chen
  • Junneng, Nie

Abstract

Desiccant dehumidification can realize decoupling of latent and sensible heat loads in dehumidified air conditioning, thereby reducing energy consumption. This paper proposes a solar regenerated carbon-based composite desiccant coated heat exchangers (DCHE) for air dehumidification. Carbon-based composite desiccant is electrostatically sprayed onto the surface of the heat exchanger to form a dehumidification coating. An experimental system for evaluating the dehumidification and regeneration performance of DCHE is established. The Taguchi method is employed to evaluate the impact of operating parameters such as air velocity, water flow rate, and regeneration temperature on the dehumidification and regeneration efficiency of DCHE. The result shows that air velocity is the primary factor impacting the dehumidification performance of DCHE, with regeneration temperature and cooling water flow rate following in importance. With the faster air velocity and the lower cooling water flow rate, DCHE shows the better dehumidification performance. Moreover, excessively both high and low regeneration temperatures can result in a degradation in the dehumidification performance of DCHE. Under optimal operating conditions, the dehumidification rate (EDE) and thermal coefficient of performance (COPth) of DCHE can reach 7.5 kg/h and 2.3, respectively. The moisture content of the air reduces from 19.6 g/kg to 8.0 g/kg.

Suggested Citation

  • Bianfeng, Yang & Cong, Wang & Ji, Xu & Yuan, Yang & Yingxu, Chen & Junneng, Nie, 2024. "Solar regenerated carbon-based composite desiccant coated heat exchangers for air dehumidification," Energy, Elsevier, vol. 299(C).
  • Handle: RePEc:eee:energy:v:299:y:2024:i:c:s0360544224013100
    DOI: 10.1016/j.energy.2024.131537
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224013100
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2024.131537?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Zhang, J.Y. & Ge, T.S. & Dai, Y.J. & Zhao, Y. & Wang, R.Z., 2017. "Experimental investigation on solar powered desiccant coated heat exchanger humidification air conditioning system in winter," Energy, Elsevier, vol. 137(C), pages 468-478.
    2. Hands, Stuart & Sethuvenkatraman, Subbu & Peristy, Mark & Rowe, Daniel & White, Stephen, 2016. "Performance analysis & energy benefits of a desiccant based solar assisted trigeneration system in a building," Renewable Energy, Elsevier, vol. 85(C), pages 865-879.
    3. Pan, Q.W. & Xu, J. & Ge, T.S. & Wang, R.Z., 2022. "Multi-mode integrated system of adsorption refrigeration using desiccant coated heat exchangers for ultra-low grade heat utilization," Energy, Elsevier, vol. 238(PB).
    4. Wang, H.H. & Ge, T.S. & Zhang, X.L. & Zhao, Y., 2016. "Experimental investigation on solar powered self-cooled cooling system based on solid desiccant coated heat exchanger," Energy, Elsevier, vol. 96(C), pages 176-186.
    5. Wang, Cong & Yang, Bianfeng & Ji, Xu & Zhang, Ren & Wu, Hailong, 2022. "Study on activated carbon/silica gel/lithium chloride composite desiccant for solid dehumidification," Energy, Elsevier, vol. 251(C).
    6. Zheng, X. & Wang, R.Z. & Ge, T.S. & Hu, L.M., 2015. "Performance study of SAPO-34 and FAPO-34 desiccants for desiccant coated heat exchanger systems," Energy, Elsevier, vol. 93(P1), pages 88-94.
    7. Vivekh, P. & Kumja, M. & Bui, D.T. & Chua, K.J., 2018. "Recent developments in solid desiccant coated heat exchangers – A review," Applied Energy, Elsevier, vol. 229(C), pages 778-803.
    8. Ge, T.S. & Dai, Y.J. & Wang, R.Z., 2014. "Review on solar powered rotary desiccant wheel cooling system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 476-497.
    9. Venegas, Tomas & Qu, Ming & Nawaz, Kashif & Wang, Lingshi, 2021. "Critical review and future prospects for desiccant coated heat exchangers: Materials, design, and manufacturing," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).
    10. Oh, Seung Jin & Ng, Kim Choon & Chun, Wongee & Chua, Kian Jon Ernest, 2017. "Evaluation of a dehumidifier with adsorbent coated heat exchangers for tropical climate operations," Energy, Elsevier, vol. 137(C), pages 441-448.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Feng, Y.H. & Dai, Y.J. & Wang, R.Z. & Ge, T.S., 2022. "Insights into desiccant-based internally-cooled dehumidification using porous sorbents: From a modeling viewpoint," Applied Energy, Elsevier, vol. 311(C).
    2. Zheng, Xu & Wan, Tinghao & Zhang, Yu & Ma, Qianling, 2024. "Experimental investigation of a thermo-responsive composite coated heat exchanger for ultra-low grade heat utilization," Energy, Elsevier, vol. 293(C).
    3. Zhang, Yu & Wang, Weining & Zheng, Xu & Cai, Jinliang, 2024. "Recent progress on composite desiccants for adsorption-based dehumidification," Energy, Elsevier, vol. 302(C).
    4. Shamim, Jubair A. & Hsu, Wei-Lun & Paul, Soumyadeep & Yu, Lili & Daiguji, Hirofumi, 2021. "A review of solid desiccant dehumidifiers: Current status and near-term development goals in the context of net zero energy buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    5. Venegas, Tomas & Qu, Ming & Nawaz, Kashif & Wang, Lingshi, 2021. "Critical review and future prospects for desiccant coated heat exchangers: Materials, design, and manufacturing," Renewable and Sustainable Energy Reviews, Elsevier, vol. 151(C).
    6. Ge, Lurong & Ge, Tianshu & Wang, Ruzhu, 2022. "Facile synthesis of Al-based MOF and its applications in desiccant coated heat exchangers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 157(C).
    7. Vivekh, P. & Kumja, M. & Bui, D.T. & Chua, K.J., 2018. "Recent developments in solid desiccant coated heat exchangers – A review," Applied Energy, Elsevier, vol. 229(C), pages 778-803.
    8. Liu, M. & Prabakaran, V. & Bui, T. & Cheng, G.G. & Pang, W., 2023. "Three-dimensional numerical analysis of fin-tube desiccant-coated heat exchanger for air dehumidification in tropics," Applied Energy, Elsevier, vol. 331(C).
    9. Gao, D.C. & Sun, Y.J. & Ma, Z. & Ren, H., 2021. "A review on integration and design of desiccant air-conditioning systems for overall performance improvements," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    10. Vivekh, P. & Bui, D.T. & Wong, Y. & Kumja, M. & Chua, K.J., 2019. "Performance evaluation of PVA-LiCl coated heat exchangers for next-generation of energy-efficient dehumidification," Applied Energy, Elsevier, vol. 237(C), pages 733-750.
    11. Ge, Lurong & Feng, Yaohui & Wu, Jiarong & Wang, Ruzhu & Ge, Tianshu, 2024. "Performance evaluation of MIL-101(Cr) based desiccant-coated heat exchangers for efficient dehumidification," Energy, Elsevier, vol. 289(C).
    12. Zhang, Qunli & Li, Yanxin & Zhang, Qiuyue & Ma, Fengge & Lü, Xiaoshu, 2024. "Application of deep dehumidification technology in low-humidity industry: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 193(C).
    13. Vivekh, P. & Islam, M.R. & Chua, K.J., 2020. "Experimental performance evaluation of a composite superabsorbent polymer coated heat exchanger based air dehumidification system," Applied Energy, Elsevier, vol. 260(C).
    14. Valarezo, Andres S. & Sun, X.Y. & Ge, T.S. & Dai, Y.J. & Wang, R.Z., 2019. "Experimental investigation on performance of a novel composite desiccant coated heat exchanger in summer and winter seasons," Energy, Elsevier, vol. 166(C), pages 506-518.
    15. Zheng, Xu & Zhang, Yu & Wan, Tinghao & Chen, Kang, 2023. "Experimental study on the performance of a novel superabsorbent polymer and activated carbon composite coated heat exchangers," Energy, Elsevier, vol. 281(C).
    16. Sun, X.Y. & Dai, Y.J. & Ge, T.S. & Zhao, Y. & Wang, R.Z., 2017. "Comparison of performance characteristics of desiccant coated air-water heat exchanger with conventional air-water heat exchanger – Experimental and analytical investigation," Energy, Elsevier, vol. 137(C), pages 399-411.
    17. Zu, Kan & Qin, Menghao & Cui, Shuqing, 2020. "Progress and potential of metal-organic frameworks (MOFs) as novel desiccants for built environment control: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 133(C).
    18. Wang, Cong & Yang, Bianfeng & Ji, Xu & Zhang, Ren & Wu, Hailong, 2022. "Study on activated carbon/silica gel/lithium chloride composite desiccant for solid dehumidification," Energy, Elsevier, vol. 251(C).
    19. Karmakar, Avishek & Prabakaran, Vivekh & Zhao, Dan & Chua, Kian Jon, 2020. "A review of metal-organic frameworks (MOFs) as energy-efficient desiccants for adsorption driven heat-transformation applications," Applied Energy, Elsevier, vol. 269(C).
    20. Xu, F. & Bian, Z.F. & Ge, T.S. & Dai, Y.J. & Wang, C.H. & Kawi, S., 2019. "Analysis on solar energy powered cooling system based on desiccant coated heat exchanger using metal-organic framework," Energy, Elsevier, vol. 177(C), pages 211-221.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:299:y:2024:i:c:s0360544224013100. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.