Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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A Case Study on Remodeling Strategies of Mission Critical Facility for Existing Data Centers Based on IT Power Density

IT전력밀도에 따른 기축 데이터센터의 리모델링을 위한 설비시스템 계획방법에 관한 사례연구

  • Cho, Jinkyun (Dept. of Building and Plant Engineering, National Hanbat University) ;
  • Park, Woopyeng (Division of Real Estate and Construction Engineering, Kangnam University / Graduate School of Architecture, Kyonggi University)
  • 조진균 (국립한밭대 설비공학과) ;
  • 박우평 (강남대 부동산건설학부 건축공학전공 / 경기대학교 대학원 건축공학과)
  • Received : 2022.02.21
  • Accepted : 2022.04.22
  • Published : 2022.05.30
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Abstract

Numerous data centers have been built and operated since 2000. Now that 20 years have passed, a growing need for remodeling that involves shifting to a new IT environment, upgrading IT equipment, and replacing outdated facility infrastructure is escalating. In this study, three basic independent non-IT system modules for a total IT load of 150 kW were derived to respond to low-density, medium-density, and high-density rack-server configurations according to the IT power density known as a key element of a data center. Additionally, a data center's cooling strategies were analyzed according to its IT power density. As of 2021, the average IT power density of global data centers was surveyed at the level of 7.8-8.4 kW/rack that involved more than 400 samples. Data center cooling was divided into a room-based cooling for low-density, row-based cooling for medium-density, and rack-based cooling for a high-density IT load. Compared to the ALT-1 of a low-density model, the required area was reduced by 30% for the medium-density model and 55% for the high-density model. As a result of the remodeling cost analysis, the cost increased to 105% for the ALT-2 and 119% for the ALT-3 based on the ALT-1 being 100%. The criterion for data center remodeling is to comprehensively consider the required space, cooling energy efficiency, and construction cost based on the IT power density.

Keywords

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