Characterization of a Server Thermal Mass Using Experimental Measurements
Characterization of a Server Thermal Mass Using Experimental Measurements
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使用实验测量表征服务器热质量
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
R. Schmidt
中科院分区：
文献类型：
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作者：
M. Ibrahim;F. Afram;B. Sammakia;K. Ghose;B. Murray;M. Iyengar;R. Schmidt
数据中心设施的散热不可避免地增加，这要求在数据中心的操作中采用更有效的方法。动态冷却已经被提出作为提高能量效率的方法。动态冷却涉及使用传感器随时间密切监视数据中心环境，并根据热点位置和工作负载集中度对冷却资源的分配做出真实的时间决策。为了解决这一问题，了解设施在发生任何变化后达到稳定状态所需的时间对于确保电子设备始终安全运行至关重要，并且它是热质量的函数。物体的热质量是能够保留热量的质量，并且将热量消散到环境中所需的时间是材料特性的函数。在这项研究中，我们使用一个典型的2U服务器，并解释了一个程序，在获得其热质量。服务器在不同的受控功率水平下运行，同时随时间测量风扇速度、组件温度以及入口和出口温度。对于第一组实验，服务器被保存在一个腔室中，对于第二组实验，它被保存在开放空间中。最终，获得的实验测量结果将用于获得一个紧凑的模型，以近似不同服务器的热质量。
The inevitable increase in the heat dissipation of data center facilities is requiring more efficient approaches in the operation of a data center. Dynamic cooling has been proposed as the approach for enhancing the energy efficiency. Dynamic cooling involves close monitoring of the data center environment with time, using sensors, and taking real time decisions on allocating the cooling resources based on the location of hotspots and concentration of workloads. In order to address this approach, knowing the time it takes for a facility to reach steady state after any variation is crucial for ensuring safe operation of the electronic equipment at all times, and it is a function of thermal mass. The thermal mass of an object is the amount of mass capable of withholding heat, and the time it takes to dissipate that heat into the environment is a function of the material properties. In this study, we use a typical 2U server and explain a procedure in obtaining its thermal mass. The server is operated at different controlled power levels while measurements of fans speed, component temperatures, and inlet and outlet temperatures are taken with time. For the first set of experiments, the server is kept inside a chamber and for the second set it is kept in open space. Ultimately the experimental measurements obtained will be used to obtain a compact model to approximate thermal mass of different servers.Copyright © 2011 by ASME