Life cycle environmental impact analysis of data center cooling using computer room air-conditioning
Along with the rapid development of the data center industry,the life cycle energy consumption and refrigerant emissions of the air conditioner in machine room have also brought negative effects to the environment.In order to identify the key factors of en-vironmental impact in the whole life cycle of the air conditioner in machine room and pro-vide the basis for green design of products,the life cycle assessment method (LCA)is used to quantitatively analyze the environmental impact of the air conditioner in machine room.The analysis results are as follows.The main influencing factors of product environ-mental impact are global warming potential and acidification potential,accounting for 56.25％ and 34.07％ respectively.The main impact stage is operation stage,accounting for over 99％ of the environmental impact in the whole life cycle.Sensitivity analysis shows that energy consumption of operation stage is the main influencing factor in environmental impact.The use of natural cold sources and increasing return air temperature can effective-ly reduce the environmental impact of the air conditioner in machine room.Using refriger-ants with lower GWP can also reduce the global warming potential,but the overall impact on the environment is limited.The environmental impact of processing and transportation stage in the whole life cycle is relatively small and can be ignored.
computer room air-conditioningdata centerlife cycle assessmentenvironmental impactoperating energy consumption
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