کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
263386 504074 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of energy saving potential of air-side free cooling for data centers in worldwide climate zones
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Analysis of energy saving potential of air-side free cooling for data centers in worldwide climate zones
چکیده انگلیسی


• We explore the free cooling energy efficiency of data centers in 17 climate zones.
• The air-side free cooling with differential enthalpy control was analyzed.
• Big energy savings was observed in mixed-humid and warm-marine climate zones.
• There is no benefit of air-side free cooling with extreme low dew point temperature.

Based on the climate classification of ASHRAE 90.1 and the required operating environment conditions for data centers suggested by the ASHRAE Technical Committee TC 9.9, a dynamic building energy simulation program was used to examine the potential energy savings of the air-side free cooling technology with differential enthalpy control used in data centers in 17 climate zones. The results showed that significant free cooling potential was achieved in data centers located in mixed-humid, warm-marine, and mixed-marine climate zones. Because significant humidification is required to adjust outdoor air in climate zones with a lower dew point temperature, such as very-cold, subarctic, cool-dry, and cold-dry climate zones, the power consumed is even higher. Although the cooling degree day (CDD) and heating degree day (HDD) are key factors of climate classification and air conditioning energy consumption, they are not entirely correlated to the specific operating environment conditions of data centers. The results of this study showed that for every 2 °C decline in the indoor temperature of a data center, the energy saving of free cooling technology may decrease by 2.8–8.5%. The rate of decline varies in different climate zones.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 64, September 2013, Pages 103–112
نویسندگان
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