Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Thermal Analysis for a Data Center Cooling System under Fault Conditions at a Chilled Water Plant

비상시 열원중단에 따른 데이터센터의 냉각시스템 열성능 평가에 관한 사례연구

  • Cho, Jinkyun (Construction Technology Team, Samsung C&T Corporation) ;
  • Kang, Hosuk (Construction Technology Team, Samsung C&T Corporation)
  • 조진균 (삼성물산(주) 건설부문 기술팀) ;
  • 강호석 (삼성물산(주) 건설부문 기술팀)
  • Received : 2016.03.05
  • Accepted : 2016.04.09
  • Published : 2016.05.10
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Abstract

This study describes the analysis of a 20 MW chilled water plant used for the IT cooling of a recently constructed data center in Korea. The CFD model was developed with the aim of evaluating the impact of problems such as chiller failure on the water and air temperatures in the cooling system. The numerical model includes the chilled water hydraulic network and individual water-to-air CRAC units. The coupling between the IT server room air temperature levels and the cooling plant has enabled a full assessment of the cooling system design in response to system fault conditions to be performed. The paper examines an emergency situation involving the failure of the cooling plant, and shows how the inherent thermal inertia of the system along with additional inertia achieved through buffer systems allowed a suitable design to be achieved.

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References

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