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Experimental Study and Energy-Saving Analysis on Cooling Effect with Large Temperature Difference and High Temperature of Chilled Water System in Data Center

  • Zhibo Kang
  • Zhenhua ShaoEmail author
  • Lin Su
  • Kaijun DongEmail author
  • Hongxian Liu
Conference paper
  • 212 Downloads
Part of the Environmental Science and Engineering book series (ESE)

Abstract

From the perspective of the precision air-conditioning operating condition, the effects of different load powers, different water temperatures of supply-and-return and temperature difference on energy consumption of precision air-conditioning and COP of water chiller were debated in this paper. The experimental results show that when the cooling mode of large temperature difference and high temperature is adopted, a higher water supply temperature and a higher efficiency of the water chiller are obtained. Moreover, the return water temperature is also increased, and the utilization rate of natural cold source can be improved. In order to reduce the energy consumption of the water chiller and increase the COP of the water chiller, natural cold source with gradient utilization can be used, which increased the utilization time of natural cold source. In a word, not only the energy consumption of precision air-conditioning water system but the chiller can be reduced by means of large temperature difference and high temperature.

Keywords

Data center Large temperature difference Cooling effect 

Notes

Acknowledgements

This work is supported by Science and Technology Planning Project of Guangdong Province, China (No.2017B090907027), Science and Technology Planning Project of Guangzhou, China201705YH091.

References

  1. 1.
    TAO, Y., ZHANG, J., WANG, H.: Cold water large temperature difference combined air conditioning unit research. National HVAC refrigeration Year Academic Corpus, pp. 252–257. China Construction Industry Press, Beijing (2002)Google Scholar
  2. 2.
    Jiang, X., Xiao, J., Li, X.: Energy consumption comparison of large-scale air-conditioning system with different temperature of chilled-water. Procedia Eng. 205, 2100–2104 (2017)CrossRefGoogle Scholar
  3. 3.
    Zhang, S.: Energy saving analysis of free cooling in chilled water system for data centers. HAVC 2016. 46(5), 80–83 (2016)Google Scholar
  4. 4.
    Lv, J., Wang, T., Zhao, L.: Energy saving analysis of data center air conditioning system based on application of natural cooling technology. J. Refrig. 37(3), 113–118 (2016)Google Scholar
  5. 5.
    Zhang, H., Zhang, J., Chen, D.: Energy saving optimization control of cold water unit based on COP curve. Build. Energy Environ. 37(1), 6–10 (2018)MathSciNetGoogle Scholar
  6. 6.
    Dong, X.: Research of reducing energy consumption of air conditioning chilled water system. Donghua University (2012)Google Scholar
  7. 7.
    Zhu, K., Ren, J., Zhang, J.: Energy consumption analysis of refrigeration system with large temperature difference in cooling water. J. Refrig. 39(5), 129–134 (2018)Google Scholar
  8. 8.
    Chen, S., Qu, G., Huang, W.: Application of large temperature difference technique of air conditioning chilled water to engineering. HAVC 42(6), 20–23 (2012)Google Scholar
  9. 9.
    Fan, J.: Discussion on energy-saving design of large temperature difference air conditioning water system. In: Proceedings of the 7th national technical exchange conference on building environment and energy application. Building environment and energy application branch of China survey and design association pp. 3. HAVC magazine (2017)Google Scholar
  10. 10.
    Mao, L.: Design and application of a new type of air conditioning system with large temperature difference. Dalian Ocean University (2017)Google Scholar
  11. 11.
    Duan, Z.: Technical and economic analysis of air-conditioning water system using large temperature difference in temperate regions. Refrig. Air Cond. 28(6), 672–676 (2014)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Guangzhou Institute of Energy Conversion, Chinese Academy of SciencesGuangzhouChina
  2. 2.Northeast Electric Power UniversityJilinChina
  3. 3.CAS Key Laboratory of Renewable EnergyGuangzhouChina
  4. 4.Guangdong Provincial Key Laboratory of New and Renewable Energy Research and DevelopmentGuangzhouChina

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