自然冷却专用小型气泵间隙泄漏特性分析

doi:10.19784/j.cnki.issn1672-0172.2023.02.010

Abstract

Abstract: The booster-driven loop heat pipe system, as an important free cooling system in data centers, can reduce the cooling energy consumption of data centers effectively. The booster is the key component to supply the driving force. Based on the former researches by our group, the leakage gap model of a rolling piston booster was established, and the effects of different leakages and refrigerants were studied and compared. The results indicate that the peak leakages of four leakage gaps for the booster are much lower than that of the compressor, as well as the fluctuation ranges. The variations of the leakages for four refrigerants are the same for both the booster and the compressor. For the axial clearance leakage, the peak leakages of R134a and R22 are much higher than those of R32 and R410A. The leakages are ordered as R134a, R22, R32, R410A from large to small in sequence, which are the opposite for the other three leakage gaps. Among total gap leakages the radial and axial gap leakages are the main leakages.

Key words: Data center, Free cooling, Booster, Gap leakage, Refrigerant

CLC Number:

ZHENG Bo, SONG Yu, XU Buqing, WANG Ruimin, ZHOU Feng, MA Guoyuan. Gap leakage characteristics of miniature booster for free cooling in data centers[J]. Journal of Appliance Science & Technology, 2023, 0(2): 62-67.

References

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Gap leakage characteristics of miniature booster for free cooling in data centers

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