Designing Coolant Distribution Units (CDU) into Data Center Systems and Maintaining the Proper Operating Temperature

时间： 2022-03-23 来源：Aavid

技术问答

选型帮助

研发客服

商务客服

As nearly every industry employs devices and electronics that require increased power, more efficient cooling for high heat loads in compact spaces has never been more important. So today Aavid will introduce how to design Coolant Distribution Units (CDU) into data center systems and maintain the proper operating temperature.

Why would you need a CDU for data center cooling?

Uninterrupted, 24/7 data center operation is critical for business continuity. As thermal requirements have increased along with computing power, many enterprise applications have surpassed what traditional air cooling can achieve. A CDU offers a higher level of cooling capacity in a more compact, flexible solution, and is an efficient option for cooling and protecting data center components.

How important is Hot Swapping? Do I need Hot Swapping features in my system?

Uptime for servers in a data center is crucial, so having hot-swappable components (or components that are replaceable during continued operation) can help avoid service disruptions.

How do you prevent condensation and leaks in a CDU?

Any amount of condensation or liquid leaking from a cooling system can cause damage or failure to any of the equipment inside of a server rack. Temperature and humidity sensors are typically installed to ensure that the data center is operating below dew point to mitigate any condensation risk on system piping.

Do CDUs connect to facility water or facility air?

Whether self-contained in-row CDUs or integrated in-rack CDUs, cooling distribution units need to be connected to facility water or to the facility-level cooling system to dump heat. Boyd has several different heat exchangers to facilitate the transfer of heat out of a CDU, ranging from liquid-to-liquid systems to liquid-to-air systems.

While transferring heat out directly from the CDU to facility water provides the highest cooling capacity, it may not be necessary for all applications. Rear Door Heat Exchangers (RDHx) coupled with Reservoir Pumping Units (RPUs) are frequently used in conjunction as an economical solution to reject heat into the ambient air of a data center.

How do you increase the lifespan of a Coolant Distribution Unit?

Data centers usually have a 20-40% increase in computing power every five years, with equipment life expectancy lasting around ten years. This increase in power means a highly increased thermal load. A Cooling Distribution Unit should align with the same computing growth cycle and should expect a life expectancy between five and ten years.

Making sure that the CDU is well maintained is one of the best ways to increase the lifespan of a server chiller. Preventative maintenance is performed for loss of flow, pump life expectancy, and power supply operation. For flow changes, we can implement time-bound filter replacement, and replacement of the pumps and power supply unit can be triggered based on hours of operation.

It's also important to use and maintain a high-quality coolant to extend the life of the internal filters. This helps prevent thermal runaway, which in turn can enhance the life of the pump and power supply.

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由董慧转载自Aavid，原文标题为:Designing Coolant Distribution Units (CDU) into Data Center Systems，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

全部评论（0）

暂无评论

【经验】冷却液分配单元（CDU）用于云设备、企业设备及5G热管理设计时需要考虑的因素

本文中爱美达将介绍CDU用于云设备、企业设备以及5G热管理设计需要考虑的因素。冷却液分配单元（CDU）技术改进的液冷系统和集成方案，通过超越运行功率和应用要求的可扩展热管理计划，帮助原始设备制造商在相同的占用空间内提高计算密度，快速迭代设计并加快上市速度，提高效率和可靠性。

设计经验发布时间 : 2021-08-23

【经验】爱美达CDU设计需要注意的5个事项

爱美达在CDU设计方面有丰富的经验，本文针对CDU机械设计、通讯/控制器和监视器、泄漏检测/冷凝风险、维护、热交换器内容进行说明。

设计经验发布时间 : 2021-05-30

【经验】如何解读爱美达标准散热器性能曲线？如何在实际设计中利用这些曲线？

某品牌服务器公司要求爱美达在给定尺寸的条件下设计一款热管散热器，热损耗功率275W，要求温升25C。在做了一系列设计优化后，包括鳍片材质，鳍片尺寸，热管型号，热管布局，热管数目，发现散热器自身的传导热阻很小，温差只有5C，最大的温差来源于空气到鳍片的温差。这时候不管做什么优化，都将无法降低散热器本身温升。我们将以此为据，并配合SmartCFD仿真模拟数据，解决问题并分享经验。

设计经验发布时间 : 2020-02-16

液冷系统和CDU已成为数据中心热管理方案大势

下一代设计的热量和功率密度要求现在已经达到了空冷的极限，总而需要过渡到液冷技术。液冷系统通过提高设计灵活性和可扩展性来改进传热和获得更高的热性能，进而使应用程序能够更快、更经济、更安静、性能更好。更高效、更小的系统也节省了空间，允许更多的机架和服务器以更高的性能运行。

行业资讯发布时间 : 2021-08-24

【产品】爱美达冷却液分配单元（CDU），灵活省空间的超大规模计算系统冷却方案

BOYD的冷却液分配单元有助于降低数据中心的总体拥有成本。CDU尺寸合适且针对特定应用进行了定制配置，这意味着超大规模计算系统可在需要时获得系统所需的精确，最佳冷却性能。具有操作逻辑，自动诊断和故障排除，保护和警告功能以及智能流量，压力和温度控制功能的智能控制器可管理系统性能，以高峰需求达到峰值，同时在非峰值运行期间保持经济高效，并在故障发生之前预防问题发生。

新产品发布时间 : 2021-03-30

Energy Consumption in Data Centers: Air Versus Liquid Cooling

As the data center industry continues to evolve and address rising energy consumption challenges, investors have opportunities to support and capitalize on advancements in energy-efficient technologies that innovate and improve sustainability.

技术探讨发布时间 : 2023-11-01

What Is A Coolant Distribution Unit (CDU)?

A Coolant Distribution Unit (CDU) is a system that enables smaller, more efficient, more precise liquid cooling in a data center at Rack level, often integrating facility water. The CDU circulates coolant in a closed loop system within the rack on the secondary (Cooling Application) side and utilizes facility water on the primary (Heat Rejection) side. A CDU has a pump, reservoir, power supply, control board and a heat-exchanger as the key components. Filters, flow meters, pressure transducers, and other devices are also used in managing the operation of the CDU in conjunction with the Server

新技术发布时间 : 2021-06-14

Thermal Management in Artificial Intelligence

As technology continues to evolve, more companies leverage Artificial Intelligence (AI) to improve existing offerings and generate new solutions to accelerate value creation for their customers.

技术探讨发布时间 : 2023-10-05

ACS060LA03-SYS 4U 60kW Server LCS CDU

型号- 373314,ACS060LA03-SYS

数据手册 - 爱美达 - Rev A04 - 06/14/2021 PDF 英文下载

Coolant Distribution Units (CDUs) That Help Lower Data Center Total Cost of Ownership and Maximize Power Density

Boyd’s Coolant Distribution Units (CDUs) help lower data center total cost of ownership. CDUs mean hyperscale compute systems get the exact, optimal cooling performance the system needs, when it needs it. Intelligent controllers manage system performance to spike with peak demand while remaining economical and efficient during non-peak operation and prevent problems before they occur. Blind mate quick disconnects with 360 swivel fittings make servicing systems fast for minimized maintenance downtime.

新产品发布时间 : 2021-03-07

ACS015LA02-SYS 2U CDU规格书(ACS015LA02-SYS 2U CDU SPECIFICATION)

型号- ACS015LA02-SYS,363416

数据手册 - 爱美达 - Rev01 - 26/12/2019 PDF 中英文下载

COOLANT DISTRIBUTION UNITS

技术文档 - 爱美达 - 04.2021 PDF 英文下载查看更多版本

Coolant Distribution Units - Improve Cooling and Performance of Cloud, Enterprise ＆ 5G Applications

OverviewBoyd Corporation has been the leading innovator in Enterprise cooling and engineered material solutions since data centers first started to emerge and evolve. Boyd utilizes these decades of expertise to develop advanced thermal solutions and systems to stay ahead of rapidly rising processing power, thermal density, and heat loads. This includes forward thinking liquid cooling innovation and system components such as Coolant Distribution Units (CDUs). This article covers CDU technology for improved liquid cooling systems and integrated solutions that help OEMs increase compute density i

新技术发布时间 : 2021-06-21

爱美达机架式CDU和行级CDU助力数据中心散热，提供最高700千瓦冷却能力

自从数据中心首次出现和不断发展，爱美达一直引领着企业冷却和工程材料解决方案的技术创新，利用这几十年的专业知识开发了一系列先进的热解决方案和系统，，前瞻性液体冷却创新和系统元件——冷却液分配单元（CDUs）。

厂牌及品类发布时间 : 2021-08-26

Aavid‘s Liquid Cooling Systems: Modular or fully customized liquid cooling optimized for improved heat dissipation in condensed volumes

Liquids have a high capacity for heat transfer and can remove and dissipate heat quickly and effectively. This enables Liquid Cooling Systems (LCSs) that utilize liquid and optimized system components, such as pumps, compressors, or cold plates, to cool high power density devices more efficiently than air cooled systems of the same volume. Aavid, Thermal Division of Boyd Corporation, specializes in engineering and the production of liquid systems as well as fully optimized individual thermal and sealing components.

新产品发布时间 : 2020-08-12