Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center
Energy-saving in regard to heating, ventilation, and air-conditioning (HVAC) in data centers is strongly required. Therefore, to improve the operating efficiency of the cooling equipment and extend the usage time of the economizer used for cooling information-technology equipment (ITE) in a data cen...
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doaj-a0d8277f5d694b77b8069a873dbb001e2020-11-27T07:54:52ZengMDPI AGEnergies1996-10732020-11-01136166616610.3390/en13236166Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data CenterNaoki Futawatari0Yosuke Udagawa1Taro Mori2Hirofumi Hayama3NTT FACILITIES, INC., Minato-ku, Tokyo 1080023, JapanNTT FACILITIES, INC., Minato-ku, Tokyo 1080023, JapanFaculty of Engineering, Hokkaido University, Kita-ku, Sapporo, Hokkaido 0608628, JapanFaculty of Engineering, Hokkaido University, Kita-ku, Sapporo, Hokkaido 0608628, JapanEnergy-saving in regard to heating, ventilation, and air-conditioning (HVAC) in data centers is strongly required. Therefore, to improve the operating efficiency of the cooling equipment and extend the usage time of the economizer used for cooling information-technology equipment (ITE) in a data center, it is often the case that a high air-supply temperature within the range in which the ITE can be sufficiently cooled is selected. In the meantime, it is known that when the ambient temperature of the ITE rises, the speed of the built-in cooling fan increases. Acceleration of the built-in fan is thought to affect the cooling performance and energy consumption of the data center. Therefore, a method for predicting the temperature of a data center—which simply correlates supply-air temperature with ITE inlet temperature by utilizing existing indicators, such as air-segregation efficiency (ASE)—is proposed in this study. Moreover, a method for optimizing the total energy consumption of a data center is proposed. According to the prediction results obtained under the assumption of certain computer-room air-conditioning (CRAC) conditions, by lowering the ITE inlet temperature from 27 °C to 18 °C, the total energy consumption of the machine room is reduced by about 10%.https://www.mdpi.com/1996-1073/13/23/6166data centerHVACthermal managementITE fan speedenergy consumptionoptimization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Naoki Futawatari Yosuke Udagawa Taro Mori Hirofumi Hayama |
spellingShingle |
Naoki Futawatari Yosuke Udagawa Taro Mori Hirofumi Hayama Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center Energies data center HVAC thermal management ITE fan speed energy consumption optimization |
author_facet |
Naoki Futawatari Yosuke Udagawa Taro Mori Hirofumi Hayama |
author_sort |
Naoki Futawatari |
title |
Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center |
title_short |
Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center |
title_full |
Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center |
title_fullStr |
Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center |
title_full_unstemmed |
Impact of Fan Airflow of IT Equipment on Thermal Environment and Energy Consumption of a Data Center |
title_sort |
impact of fan airflow of it equipment on thermal environment and energy consumption of a data center |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2020-11-01 |
description |
Energy-saving in regard to heating, ventilation, and air-conditioning (HVAC) in data centers is strongly required. Therefore, to improve the operating efficiency of the cooling equipment and extend the usage time of the economizer used for cooling information-technology equipment (ITE) in a data center, it is often the case that a high air-supply temperature within the range in which the ITE can be sufficiently cooled is selected. In the meantime, it is known that when the ambient temperature of the ITE rises, the speed of the built-in cooling fan increases. Acceleration of the built-in fan is thought to affect the cooling performance and energy consumption of the data center. Therefore, a method for predicting the temperature of a data center—which simply correlates supply-air temperature with ITE inlet temperature by utilizing existing indicators, such as air-segregation efficiency (ASE)—is proposed in this study. Moreover, a method for optimizing the total energy consumption of a data center is proposed. According to the prediction results obtained under the assumption of certain computer-room air-conditioning (CRAC) conditions, by lowering the ITE inlet temperature from 27 °C to 18 °C, the total energy consumption of the machine room is reduced by about 10%. |
topic |
data center HVAC thermal management ITE fan speed energy consumption optimization |
url |
https://www.mdpi.com/1996-1073/13/23/6166 |
work_keys_str_mv |
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