Aerosol Corrosion Prevention and Energy-Saving Strategies in the Design of Green Data Centers

Luca Ferrero; Giorgia Sangiorgi; Barbara S. Ferrini; Maria G. Perrone; Marco Moscatelli; Luca DAngelo; Grazia Rovelli; Alberto Ariatta; Redy Truccolo; Ezio Bolzacchini

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Aerosol Corrosion Prevention and Energy-Saving Strategies in the Design of Green Data Centers

机译：绿色数据中心设计中的气溶胶腐蚀预防和节能策略

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The energy demands of data centers (DCs) worldwide are rapidly increasing, as are their environmental and economic costs. This paper presents a study conducted at Sannazzaro de' Burgondi (Po Valley), Italy, specifically aimed at optimizing the operating conditions of a DC designed for the Italian Oil and Gas Company (Eni) (5200 m~2 of Information Technology installed, 30 MW) and based on a direct free cooling (DFC) system. The aim of the study was to save the largest possible quantity of energy, while at the same time preventing aerosol corrosion. The aerosol properties (number size distribution, chemical composition, deliquescence relative humidity (DRH), acidity) and meteorological parameters were monitored and utilized to determine the potential levels of aerosol entering the DC (equivalent ISO class), together with its DRH. These data enabled us both to select the DCs filtering system (MERV13 filters) and to optimize the cooling cycle through calculation of the most reliable humidity cycle (60% of maximum allowed RH) applicable to the DFC. A potential energy saving of 81%, compared to a traditional air conditioning cooling system, was estimated: in one year, for 1 kW of installed information technology, the estimated energy saving is 7.4 MWh, resulting in 2.7 fewer tons of CO_2 being emitted, and a financial saving of £ 1100.

机译：全球数据中心（DC）的能源需求及其环境和经济成本都在迅速增长。本文介绍了一项在意大利Sannazzaro de'Burgondi（波谷）进行的研究，该研究旨在优化为意大利石油天然气公司（Eni）设计的DC的运行条件（已安装5200 m〜2的信息技术，30 MW）并基于直接自然冷却（DFC）系统。该研究的目的是节省尽可能多的能量，同时防止气溶胶腐蚀。监测气溶胶特性（数量分布，化学成分，潮解相对湿度（DRH），酸度）和气象参数，并利用其确定进入DC的气溶胶的潜在水平（等效的ISO级）以及其DRH。这些数据使我们能够选择DC过滤系统（MERV13过滤器），并通过计算适用于DFC的最可靠的湿度循环（最大允许RH的60％）来优化冷却循环。与传统的空调冷却系统相比，估计可节能81％：一年内，对于安装了1 kW信息技术的设备，估计节能7.4 MWh，从而减少了2.7吨的二氧化碳排放，并节省了1100英镑。

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《Environmental Science & Technology》 |2013年第8期|3856-3864|共9页
作者
Luca Ferrero; Giorgia Sangiorgi; Barbara S. Ferrini; Maria G. Perrone; Marco Moscatelli; Luca DAngelo; Grazia Rovelli; Alberto Ariatta; Redy Truccolo; Ezio Bolzacchini;
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POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

ARIATTA Engineering Systems, Via Elba 12, 20144, Milano, Italy;

ARIATTA Engineering Systems, Via Elba 12, 20144, Milano, Italy;

POLARIS Research Centre, Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126, Milano, Italy;

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7. Evidence-based guidelines for cardiovascular disease prevention in women 11The American Heart Association makes every effort to avoid any actual or potential conflicts of interest that may arise as a result of an outside relationship or a personal, professional, or business interest of a member of the writing panel. Specifically, all members of the writing group are required to complete and submit a Disclosure Questionnaire showing all such relationships that might be perceived as real or potential conflicts of interest.This statement was approved by the American Heart Association Science Advisory and Coordinating Committee and by the American College of Cardiology Foundation in December 2003. This document is available on the World Wide Web sites of the American College of Cardiology (http://www.acc.org) and the American Heart Association (http://www.americanheart.org). A single reprint is available by calling 800-242-8721 (US only) or writing the American Heart Association, Public Information, 7272 Greenville Ave, Dallas, TX 75231-4596. Ask for reprint No. 71–0276. To purchase additional reprints: up to 999 copies, call 800-611-6083 (US only) or fax 413-665-2671; 1000 or more copies, call 410-528-4121, fax 410-528-4264, or e-mail kgray@lww.com. To make photocopies for personal or educational use, call the Copyright Clearance Center, 978-750-8400.(J Am Coll Cardiol 2004;43:900–21)The online-only Data Supplement is available athttp://www.acc.org. [O] . Mosca Lori, Appel Lawrence J, Benjamin Emelia J, 2004

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Aerosol Corrosion Prevention and Energy-Saving Strategies in the Design of Green Data Centers

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