scholarly journals Performance Analysis on Hybrid System of Thermosyphon free Cooling and Vapor Compression Refrigeration for Data Centers in Different Climate Zones of China

2014 ◽  
Vol 61 ◽  
pp. 428-431 ◽  
Author(s):  
Hainan Zhang ◽  
Shuangquan Shao ◽  
Huiming Zou ◽  
Changqing Tian
Keyword(s):  
Performance Analysis ◽  
Hybrid System ◽  
Data Centers ◽  
Vapor Compression ◽  
Climate Zones ◽  
Free Cooling ◽  
Vapor Compression Refrigeration

scholarly journals Analysis of methods for assessing the energy efficiency of data centers using the power usage effectiveness method

2022 ◽  
Vol 1216 (1) ◽  
pp. 012014
Author(s):  
R Uanov ◽  
A S Begimbetova
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Data Centers ◽  
Cooling System ◽  
Assessment Method ◽  
Vapor Compression ◽  
Compression Cycle ◽  
Free Cooling ◽  
Power Usage Effectiveness ◽  
Machine Room

Abstract The article deals with the analysis of methods for assessing the energy efficiency of data centers according to the Power Usage Effectiveness method. The demand for data centers which consumes a large amount of electricity is growing with the growth of digitalization and the accumulation of big data in the network. The energy consumption of the cooling system for the machine room accounts for a significant part of the operating costs of the building. Free cooling in a refrigeration system reduces energy consumption much more than operating systems with a vapor-compression cycle. In 2006 according to The Green Grid, the assessment method of Power Usage Effectiveness has become an international standard for measuring energy efficiency and is widely used in the design and operation of data centers. In this regard, the operation principles of free-cooling chillers are considered. The calculation example of the system payback in free-cooling is also given.

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