Case study regarding the thermal environment and energy efficiency of raised-floor and row-based cooling

Jin, Chaoqiang; Bai, Xian–Xu; An, Ya'nan; Ni, Jiacheng; Shen, Jian

doi:10.1016/j.buildenv.2020.107110

Cited by 19 publications

(9 citation statements)

References 11 publications

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“…It is the most traditional solution, combined with mechanical refrigeration and terminal of air cooling, for transferring heat generated by IT equipment to the outdoor environment [31]. The traditional solution has the advantages [32] of high reliability, simple maintenance, low operating cost, etc.…”

Section: Traditional Cooling Technologiesmentioning

confidence: 99%

Cooling Technologies for Internet Data Center in China: Principle, Energy Efficiency, and Applications

Huang,

Yan,

Zhou

et al. 2023

Energies

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The highlighted energy consumption of Internet data center (IDC) in China has become a pressing issue with the implementation of the Chinese dual carbon strategic goal. This paper provides a comprehensive review of cooling technologies for IDC, including air cooling, free cooling, liquid cooling, thermal energy storage cooling and building envelope. Firstly, the environmental requirements for the computer room and the main energy consumption items for IDC are analyzed. The evaluation indicators and government policies for promoting green IDC are also summarized. Next, the traditional cooling technology is compared to four new cooling technologies to find effective methods to maximize energy efficiency in IDC. The results show that traditional cooling consumes a significant amount of energy and has low energy efficiency. The application of free cooling can greatly improve the energy efficiency of IDC, but its actual implementation is highly dependent on geographical and climatic conditions. Liquid cooling, on the other hand, has higher energy efficiency and lower PUE compared to other cooling technologies, especially for high heat density servers. However, it is not yet mature and its engineering application is not widespread. In addition, thermal energy storage (TES) based cooling offers higher energy efficiency but must be coupled with other cooling technologies. Energy savings can also be achieved through building envelope improvements. Considering the investment and recovery period for IDC, it is essential to seek efficient cooling solutions that are suitable for IDC and take into account factors such as IDC scale, climate conditions, maintenance requirements, etc. This paper serves as a reference for the construction and development of green IDC in China.

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Section: Traditional Cooling Technologiesmentioning

confidence: 99%

Cooling Technologies for Internet Data Center in China: Principle, Energy Efficiency, and Applications

Huang,

Yan,

Zhou

et al. 2023

Energies

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show abstract

“…ANSYS-IcePak software is commonly utilized to simulate the thermal characteristics of data center environment. 3,4 The second step in the CFD simulation involves solving the governing equations (Equations ( 1)-( 9)) for each cell, using finite volume method.…”

Section: The K-ε Turbulent Modelmentioning

confidence: 99%

“…A lot of researchers reported the drawbacks of traditional raised floor cooling architectures including (a) high pressure and temperature drops of cooling air in the raised floor plenum 3 and low supply air flow rate at racks intake, 4 (b) hot air recirculation and cold air bypass, 5 (c) hot spots for the servers placed at low levels of the racks, 6 and (d) un-efficient cooling system due to high losses. 7 Accordingly, a new data center cooling architecture named as in-row cooling architecture has been developed and rapidly sprit.…”

mentioning

confidence: 99%

“…This cooling architecture reduces the length of the air paths, air pressure drop, and heat losses eliminating the thermal management problem of raised floor architectures. Jin et al 3 conducted a comparison study between the different architectures of data centers cooling systems. Moazamigoodarzi et al 4 compared between the airflow rates needed by the different cooling architectures to maintain the servers at safe operating temperatures.…”

mentioning

confidence: 99%

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Effect of in‐row cooling units numbers/locations on thermal and energy management of data centers servers

Nada

Abbas

2021

Int J Energy Res

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“…They concluded that the cooling effect of the air conditioning units' staggered arrangement in racks could be better than that of aligned arrangement. Jin et al [32] experimentally studied the DC's cooling efficiency under two forms: raised-floor air supply and row-based air conditioning air supply. It was found that the PUE of the DC with row-based air conditioning could decrease by 0.27, compared to the raised-floor supply air.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation on thermal performance of data center via fan-wall free cooling technology

Jiang

Zhang

Liang

et al. 2023

Applied Thermal Engineering

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Case study regarding the thermal environment and energy efficiency of raised-floor and row-based cooling

Cited by 19 publications

References 11 publications

Cooling Technologies for Internet Data Center in China: Principle, Energy Efficiency, and Applications

Cooling Technologies for Internet Data Center in China: Principle, Energy Efficiency, and Applications

Effect of in‐row cooling units numbers/locations on thermal and energy management of data centers servers

Experimental and numerical investigation on thermal performance of data center via fan-wall free cooling technology

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