Loop Heat Pipes for Cooling Systems of Servers

Maydanik, Yury F.; Vershinin, S.V.; Pastukhov, Vladimir G.; Fried, Stephen D.

doi:10.1109/tcapt.2009.2035514

Cited by 49 publications

(6 citation statements)

References 10 publications

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“…Historically used in niche applications in space and defense markets, numerous studies have recently considered the use of LHP cooling prototypes for electronic applications, either with air, liquid or conductive heat exchanger in server or desktop environment [12][13][14][15][16]. However, the results presented in this paper differ significantly from past studies.…”

Section: Loop Heat Pipe As a Leacmentioning

confidence: 79%

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Impacts of local cooling technologies on air cooled data center server performance: Test data analysis of Heatsink, Direct Liquid Cooling and passive 2-Phase Enhanced Air Cooling based on Loop Heat Pipe

Vuckovic¹,

Depret²

2016

2016 32nd Thermal Measurement, Modeling &Amp; Management Symposium (SEMI-THERM)

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Data Centers are becoming increasingly more dense and expensive to cool. Before bringing tons of water to the servers with Centralized Liquid Cooling or Immersion systems, could local Liquid Enhanced Air Cooling solutions help? Based upon experimental test data from a retrofit of Intel HNS2600KP servers placed in an air cooled Data Center, this paper presents a comparative analysis of local cooling solutions presently available on the market: actual Heatsink, Direct Liquid Cooling and passive 2-Phase Enhanced Air Cooling solutions based on Loop Heat Pipes. In parallel, laboratory test data analysis also gives an insight to Data Center integrators and operators on the power density performances that can be further reached.

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Section: Loop Heat Pipe As a Leacmentioning

confidence: 79%

“…Loop Heat Pipes (LHP) are highly efficient heat transfer devices operating on closed vaporization-condensation cycle that employ passive capillary pumping to move the working fluid [12]. There are composed of:  One (or several) evaporator(s) (or cooling block) in direct contact with the hot source, the electronic component.…”

Section: Loop Heat Pipe As a Leacmentioning

confidence: 99%

Impacts of local cooling technologies on air cooled data center server performance: Test data analysis of Heatsink, Direct Liquid Cooling and passive 2-Phase Enhanced Air Cooling based on Loop Heat Pipe

Vuckovic¹,

Depret²

2016

2016 32nd Thermal Measurement, Modeling &Amp; Management Symposium (SEMI-THERM)

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“…With the rapid development of LHP technology for space applications, its application has been extended to terrestrial surroundings, such as in the thermal management of aircraft and submarines, and the cooling of high power-density electronic devices [10][11][12][13][14][15][16][17][18][19][20]. Since most of the heat sources or objects to be cooled have flat thermo-contact surfaces, LHPs with flat evaporators including both opposite liquid replenishment and longitudinal liquid replenishment have been developed and tested extensively.…”

Section: Introductionmentioning

confidence: 99%

Development of cryogenic loop heat pipes: A review and comparative analysis

Bai

Zhang

Lin

et al. 2015

Applied Thermal Engineering

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Loop heat pipes(LHP) are highly efficient two-phase heat transfer devices with the ability to transfer a large amount of heat over a long distance. Due to increasing demand of efficient cryocooling applications in both space and terrestrial surroundings, LHPs operating in cryogenic temperature range have been extensively investigated in recent years. This work provided a comprehensive review of state-of-art cryogenic loop heat pipes (CLHPs) Five different types of CLHP were categorized, and a comparative analysis between CLHPs and ambient LHPs and among different types of CLHPs were conducted. The operation and performance characteristics of different types of CLHPs were compared in terms of the system structure, supercritical startup, heat transport capacity and the effect of parasitic heat load.The parameters that affect the CLHP performance were analyzed and the optimization strategy was presented in order to progress their future development and applications .

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“…At present, most investigations on LHPs are developed at the ambient temperature range and the ambient loop heat pipes (ALHPs) have been successfully utilized in many applications, such as electronics cooling and spacecraft thermal control systems [2][3][4]. The working fluids charged in ALHPs are ammonia, water and acetone, etc.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the secondary evaporator of a cryogenic loop heat pipe

Zhao¹,

Yan²,

Li³

et al. 2014

AIP Conference Proceedings

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Abstract. Cryogenic loop heat pipes (CLHPs) are promising thermal links between the cryocoolers and the cooled components. This paper presents a prototype of cryogenic loop heat pipe working in the temperature range from 77 K to 100 K with nitrogen as working fluid, whose high heat transfer capacity was investigated in the earlier work. Besides a main loop, the prototype introduced a secondary loop with responsibility for the cool down and the thermal management of the CLHP during the operation. In this paper, a series of experiments were performed by changing the heat loads on the secondary evaporator during the operating process. The results were compared and analyzed to investigate the influence of the secondary evaporator to the performance of the CLHP. Beneficial conclusions were also obtained and demonstrated.

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Loop Heat Pipes for Cooling Systems of Servers

Cited by 49 publications

References 10 publications

Impacts of local cooling technologies on air cooled data center server performance: Test data analysis of Heatsink, Direct Liquid Cooling and passive 2-Phase Enhanced Air Cooling based on Loop Heat Pipe

Impacts of local cooling technologies on air cooled data center server performance: Test data analysis of Heatsink, Direct Liquid Cooling and passive 2-Phase Enhanced Air Cooling based on Loop Heat Pipe

Development of cryogenic loop heat pipes: A review and comparative analysis

Experimental study on the secondary evaporator of a cryogenic loop heat pipe

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