Effect of warm water cooling for an isolated hybrid liquid cooled server
Effect of warm water cooling for an isolated hybrid liquid cooled server
复制标题
温水冷却对隔离式混合液冷服务器的影响
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
V. Mulay
中科院分区：
文献类型：
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作者：
Alekhya Addagatla;J. Fernandes;Divya Mani;D. Agonafer;V. Mulay
由于功率密度和服务器冷却功率需求的增加，数据中心的冷却策略也在不断变化。传统上，大多数数据中心采用风冷方式，机房空调（CRAC）泵送大量冷冻空气给IT设备降温，并将热量排放到环境中。随着对节能和经济高效的数据中心需求的增长，提供电力和冷却系统的替代方法是积极研究的主题。随着数据中心规模的扩大，当前的空气冷却系统达到了极限，冷却技术将不可避免地向空气-液体（混合）或液体冷却系统发展。对于这项工作，通过在2OU (OpenU) web服务器中结合温水和再循环空气（混合冷却）来实现新颖的服务器级冷却。进行了热性能和能耗的实验研究。本研究强调了ASHRAE TC 9.9液冷等级（W4）中不同入口供水温度的影响，范围从27.5°C到45°C，在服务器功率，组件温度和冷却功耗方面。
Data center cooling strategies have changed overtime due to increases in power densities and server cooling power requirement. Traditionally, most data centers adopt air cooling where the computer room air conditioner (CRAC) units pump volumes of chilled air to cool information technology (IT) equipment and dispose the heat to the ambient. With demand for energy-efficient and cost-effective data centers growing, alternative methods to both provide electrical power and cooling systems are the subject of active investigation. As data centers increase in size and current air-cooling systems reach their limitations, cooling technology will inevitably evolve towards air-liquid (hybrid) or liquid cooling systems. For this work, novel server level cooling is achieved through a combination of warm water and recirculated air (hybrid cooling) in a 2OU (OpenU) web server. Several experiments were conducted to characterize the thermal performance and energy consumption. This study highlights the impact of various inlet supply water temperatures within the ASHRAE TC 9.9 liquid cooling classes (W4), ranging from 27.5°C to 45°C, in terms of server power, component temperatures and cooling power consumption.