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Simulation study on the operating characteristics of the heat pipe for combined evaporative cooling of computer room air-conditioning system

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  • Han, Zongwei
  • Zhang, Yanqing
  • Meng, Xin
  • Liu, Qiankun
  • Li, Weiliang
  • Han, Yu
  • Zhang, Yanhong

Abstract

In order to improve the energy efficiency of air conditioning systems in computer rooms, this paper proposed a new concept of integrating evaporative cooling air-conditioning system with heat pipes. Based on a computer room in Shenyang, China, a mathematical model was built to perform transient simulations of the new system. The annual dynamical performance of the new system was then compared with a typical conventional computer room air-conditioning system. The result showed that the new integrated air-conditioning system had better energy efficiency, i.e. 31.31% reduction in energy consumption and 29.49% increase in COP (coefficient of performance), due to the adoption of evaporative condenser and the separate type heat pipe technology. Further study also revealed that the incorporated heat pipes enabled a 36.88% of decrease in the operation duration of the vapor compressor, and a 53.86% of reduction for the activation times of the compressor, which could lead to a longer lifespan of the compressor. The new integrated evaporative cooling air-conditioning system was also tested in different climate regions. It showed that the energy saving of the new system was greatly affected by climate, and it had the best effect in cold and dry regions like Shenyang with up to 31.31% energy saving. In some warm and humid climate regions like Guangzhou, the energy saving could be achieved up to 13.66%.

Suggested Citation

  • Han, Zongwei & Zhang, Yanqing & Meng, Xin & Liu, Qiankun & Li, Weiliang & Han, Yu & Zhang, Yanhong, 2016. "Simulation study on the operating characteristics of the heat pipe for combined evaporative cooling of computer room air-conditioning system," Energy, Elsevier, vol. 98(C), pages 15-25.
    • Handle: RePEc:eee:energy:v:98:y:2016:i:c:p:15-25
    DOI: 10.1016/j.energy.2016.01.009
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    References listed on IDEAS

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    1. Wang, Qiuwang & Zeng, Min & Ma, Ting & Du, Xueping & Yang, Jianfeng, 2014. "Recent development and application of several high-efficiency surface heat exchangers for energy conversion and utilization," Applied Energy, Elsevier, vol. 135(C), pages 748-777.
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    Cited by:

    1. Zhang, Yiqi & Li, Mengyi & Dong, Jiaxiang & Zhang, Ce & Li, Xiuming & Han, Zongwei, 2023. "Study on the impacts of refrigerant leakage on the performance and reliability of datacenter composite air conditioning system," Energy, Elsevier, vol. 284(C).
    2. Selorm Kwaku Anka & Nicholas Lamptey Boafo & Kwesi Mensah & Samuel Boahen & Kwang Ho Lee & Jong Min Choi, 2022. "Study on the Performance of a Newly Designed Cooling System Utilizing Dam Water for Internet Data Centers," Energies, MDPI, vol. 15(24), pages 1-19, December.
    3. Liu, Di & Cai, Yang & Zhao, Fu-Yun, 2017. "Optimal design of thermoelectric cooling system integrated heat pipes for electric devices," Energy, Elsevier, vol. 128(C), pages 403-413.
    4. 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).
    5. Han, Zongwei & Wei, Haotian & Sun, Xiaoqing & Bai, Chenguang & Xue, Da & Li, Xiuming, 2020. "Study on influence of operating parameters of data center air conditioning system based on the concept of on-demand cooling," Renewable Energy, Elsevier, vol. 160(C), pages 99-111.
    6. Han, Zongwei & Ji, Qiang & Wei, Haotian & Xue, Da & Sun, Xiaoqing & Zhang, Xueping & Li, Xiuming, 2020. "Simulation study on performance of data center air-conditioning system with novel evaporative condenser," Energy, Elsevier, vol. 210(C).
    7. Ji Li & Yuanwei Liu & Ruixue Zhang & Zhijian Liu & Wei Xu & Biao Qiao & Xiaomei Feng, 2018. "Load Distribution of Semi-Central Evaporative Cooling Air-Conditioning System Based on the TRNSYS Platform," Energies, MDPI, vol. 11(5), pages 1-15, May.
    8. Shao, Shuangquan & Liu, Haichao & Zhang, Hainan & Tian, Changqing, 2019. "Experimental investigation on a loop thermosyphon with evaporative condenser for free cooling of data centers," Energy, Elsevier, vol. 185(C), pages 829-836.

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