IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i9p2356-d1649579.html
   My bibliography  Save this article

Evaporative Condensation Air-Conditioning Unit with Microchannel Heat Exchanger: An Experimental Study

Author

Listed:
  • Junjie Chu

    (School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710048, China
    State Key Laboratory of Building Safety and Built Environment, Beijing 100013, China)

  • Xiang Huang

    (School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

  • Hongxu Chu

    (College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Liu Yang

    (School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

  • Weihua Lv

    (State Key Laboratory of Building Safety and Built Environment, Beijing 100013, China)

  • Xing Tang

    (LUE-ON (Jiangsu) Environmental System Co., Ltd., Taizhou 225400, China)

  • Jinxing Tian

    (School of Urban Planning and Municipal Engineering, Xi’an Polytechnic University, Xi’an 710048, China)

Abstract

A new evaporative condensation refrigerant pump heat pipe air-conditioning unit based on a microchannel heat pipe heat exchanger is proposed. Performance experiments were conducted on the unit, and the experimental results show that the cooling capacity of the unit in the dry, wet, and mixed modes can reach 112.1, 105.8, and 115.4 kW, respectively, the optimal airflow ratio of the secondary/primary airflow is 2.2, 1.8, and 1.8, respectively, and the EER decreases with increasing airflow ratio. With increasing dry- and wet-bulb temperatures of the secondary-side inlet air, the cooling capacity and energy efficiency ratio of the unit decrease, and the energy efficiency ratio in the wet mode is higher than that in the dry mode, which can prolong the operating hours of the wet mode within the operating temperature range of the dry mode and improve the energy efficiency of the unit. A new calculation method for the refrigerant charge is proposed, and the optimal refrigerant charge is 32 kg based on the experimental results, which agrees with the theoretical calculation results.

Suggested Citation

  • Junjie Chu & Xiang Huang & Hongxu Chu & Liu Yang & Weihua Lv & Xing Tang & Jinxing Tian, 2025. "Evaporative Condensation Air-Conditioning Unit with Microchannel Heat Exchanger: An Experimental Study," Energies, MDPI, vol. 18(9), pages 1-18, May.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:9:p:2356-:d:1649579
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/9/2356/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/18/9/2356/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Han, Zongwei & Xue, Da & Wei, Haotian & Ji, Qiang & Sun, Xiaoqing & Li, Xiuming, 2021. "Study on operation strategy of evaporative cooling composite air conditioning system in data center," Renewable Energy, Elsevier, vol. 177(C), pages 1147-1160.
    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. Zhang, Ce & Hou, Beiran & Li, Minxia & Dang, Chaobin & Chen, Xun & Li, Xiuming & Han, Zongwei, 2025. "Feasibility analysis of multi-mode data center liquid cooling system integrated with Carnot battery energy storage module," Energy, Elsevier, vol. 320(C).
    2. Sun, Xiaoqing & Zhang, Ce & Han, Zongwei & Dong, Jiaxiang & Zhang, Yiqi & Li, Mengyi & Li, Xiuming & Wang, Qinghai & Wen, Zhenwu & Zheng, Baoli, 2023. "Experimental study on a novel pump-driven heat pipe/vapor compression system for rack-level cooling of data centers," Energy, Elsevier, vol. 274(C).
    3. Liu, Pengfei & Kandasamy, Ranjith & Ho, Jin Yao & Wong, Teck Neng & Toh, Kok Chuan, 2023. "Dynamic performance analysis and thermal modelling of a novel two-phase spray cooled rack system for data center cooling," Energy, Elsevier, vol. 269(C).
    4. Yan, Weichao & Cui, Xin & Meng, Xiangzhao & Yang, Chuanjun & Zhang, Yu & Liu, Yilin & An, Hui & Jin, Liwen, 2024. "Multi-objective optimization of hollow fiber membrane-based water cooler for enhanced cooling performance and energy efficiency," Renewable Energy, Elsevier, vol. 222(C).
    5. Yan, Weichao & Yang, Chuanjun & Liu, Yahui & Zhang, Yu & Liu, Yilin & Cui, Xin & Meng, Xiangzhao & Jin, Liwen, 2024. "A design optimization framework for vacuum-assisted hollow fiber membrane integrated evaporative water coolers," Renewable Energy, Elsevier, vol. 230(C).
    6. Han, Ouzhu & Ding, Tao & Zhang, Xiaosheng & Mu, Chenggang & He, Xinran & Zhang, Hongji & Jia, Wenhao & Ma, Zhoujun, 2023. "A shared energy storage business model for data center clusters considering renewable energy uncertainties," Renewable Energy, Elsevier, vol. 202(C), pages 1273-1290.
    7. Zhu, Haitao & Lin, Botao, 2024. "Digital twin-driven energy consumption management of integrated heat pipe cooling system for a data center," Applied Energy, Elsevier, vol. 373(C).
    8. Zhang, Xueping & Li, Gui & Han, Zongwei & Yang, Ziwei & Bi, Weiqiang & Li, Xiuming & Yang, Lingyan, 2023. "Study on the influence of buried pipe fault on the operation of ground source heat pump system," Renewable Energy, Elsevier, vol. 210(C), pages 12-25.
    9. Chun, Liang & Liao, Zicheng & Wang, Guoqiang & Xiao, Yao & Huo, Jinpeng & Liu, Dong & Jiang, Bin, 2024. "Operational characteristics and controlling strategies of a novel dual-return-air dehumidification evaporative cooling system (DDEC)," Energy, Elsevier, vol. 309(C).
    10. Cho, Jinkyun & Kim, Youngmo, 2021. "Development of modular air containment system: Thermal performance optimization of row-based cooling for high-density data centers," Energy, Elsevier, vol. 231(C).
    11. Lee, Yee-Ting & Wen, Chih-Yung & Shih, Yang-Cheng & Li, Zhengtong & Yang, An-Shik, 2022. "Numerical and experimental investigations on thermal management for data center with cold aisle containment configuration," Applied Energy, Elsevier, vol. 307(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:gam:jeners:v:18:y:2025:i:9:p:2356-:d:1649579. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.