Thermodynamic Analysis of Resorption Heat Pump Cycle Using Water-Multicomponent Salt Mixture

Kamoshida, Junji; Hirata, Yasunori; Isshiki, Naotsugu; Katayama, Kenji; Sato, Koki

doi:10.1016/b978-0-08-040193-5.50064-x

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…COP and PUE are two important indices used to evaluate the system energy performance. COP is defined as the ratio of cooling energy removed by a cooling system to the consumed power [47]. With the assumption of all the input server power transferring to heat, in this case, COP can be represented by Equation (10).…”

Section: Cop and Ppuementioning

confidence: 99%

Evaluation and Optimization of a Two-Phase Liquid-Immersion Cooling System for Data Centers

Liu

2021

Energies

View full text Add to dashboard Cite

An efficient cooling system for data centers can boost the working efficiency of servers and promote energy savings. In this study, a laboratory experiment and computational fluid dynamics (CFD) simulation were performed to explore the performance of a two-phase cooling system. The coefficient of performance (COP) and partial power usage effectiveness (pPUE) of the proposed system was evaluated under various IT (Information Technology) loads. The relationship between the interval of the two submerged servers and their surface temperatures was evaluated by CFD analysis, and the minimum intervals that could maintain the temperature of the server surfaces below 85 °C were obtained. Experimental results show that as server power increases, COP increases pPUE decreases. In one experiment, the COP increased from 19.0 to 26.7, whereas pPUE decreased from 1.053 to 1.037. The exergy efficiency of this system ranges from 12.65% to 18.96%, and the tank side accounts for most of the exergy destruction. The minimum intervals between servers are 15 mm under 1000 W of power, 20 mm under 1500 W, and more than 30 mm under 2000 W and above. The observations and conclusions in this study can be valuable references for the study of cooling systems in data centers.

show abstract

Section: Cop and Ppuementioning

confidence: 99%

Evaluation and Optimization of a Two-Phase Liquid-Immersion Cooling System for Data Centers

Liu

2021

Energies

View full text Add to dashboard Cite

show abstract

Thermodynamic Analysis of Resorption Heat Pump Cycle Using Water-Multicomponent Salt Mixture

Cited by 1 publication

References 4 publications

Evaluation and Optimization of a Two-Phase Liquid-Immersion Cooling System for Data Centers

Evaluation and Optimization of a Two-Phase Liquid-Immersion Cooling System for Data Centers

Contact Info

Product

Resources

About