Schneider Electric Publishes White Paper Detailing Systems for Optimal Data Centre Cooling

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SySAdmin
Posted
February 14, 2017
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970

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Page 1
<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<style type="text/css">
          .xn-newslines .xn-distributor{
          display:none;
          }
          .xn-newslines .xn-dateline{
          display:none;
          }
         
      /* /\/\/\/\/\/\/\/\/ CLIENT-SPECIFIC STYLES /\/\/\/\/\/\/\/\/ */
        #outlook a{padding: 0;} /* Force Outlook to provide a "view in browser" message */
        .ReadMsgBody{width: 100%;} .ExternalClass{width: 100%;} /* Force Hotmail to display emails at full width */
        .ExternalClass, .ExternalClass p, .ExternalClass span, .ExternalClass font, .ExternalClass td, .ExternalClass div {line-height: 100%;} /* Force Hotmail to display normal line spacing */
        body, table, td, p, a, li, blockquote{-webkit-text-size-adjust: 100%; -ms-text-size-adjust: 100%;} /* Prevent WebKit and Windows mobile changing default text sizes */
        table, td{mso-table-lspace: 0pt; mso-table-rspace: 0pt;} /* Remove spacing between tables in Outlook 2007 and up */
        img{-ms-interpolation-mode: bicubic;} /* Allow smoother rendering of resized image in Internet Explorer */

        /* /\/\/\/\/\/\/\/\/ RESET STYLES /\/\/\/\/\/\/\/\/ */
        body{margin: 0; padding: 0;}
        img{border: 0; height: auto; line-height: 100%; outline: none; text-decoration: none;}
        table{border-collapse: collapse !important;}
        body, #bodyTable, #bodyCell{height: 100% !important; margin: 0; padding: 0; width: 100% !important;}

        /* /\/\/\/\/\/\/\/\/ TEMPLATE STYLES /\/\/\/\/\/\/\/\/ */

        /* ========== Page Styles ========== */

        #bodyCell{padding: 20px;}
        #templateContainer{
            width: 600px;
            background-color: #ffffff;
        }

            /**
            * @tip Set the background color and top border for your email. You may want to choose colors that match your company's branding.
            * @theme page
            */
            body, #bodyTable{
                background-color: #DEE0E2;
            }

            /**
            * @tip Set the background color and top border for your email. You may want to choose colors that match your company's branding.
            * @theme page
            */
            #bodyCell{
                border-top: 4px solid #BBBBBB;
            }

            /**
            * @tip Set the border for your email.
            */
            #templateContainer{
                border: 1px solid #BBBBBB;
            }

            /**
            * @tip Set the styling for all first-level headings in your emails. These should be the largest of your headings.
            * @style heading 1
            */
            h1{
                color: #404040 !important;
                display: block;
                font-family: Helvetica;
                font-size: 26px;
                font-style: normal;
                font-weight: bold;
                line-height: 100%;
                letter-spacing: normal;
                margin-top: 0;
                margin-right: 0;
                margin-bottom: 10px;
                margin-left: 0;
                text-align: left;
            }

            /**
            * @tip Set the styling for all second-level headings in your emails.
            * @style heading 2
            */
            h2{
                color: #404040 !important;
                display: block;
                font-family: Helvetica;
                font-size: 20px;
                font-style: normal;
                font-weight: bold;
                line-height: 100%;
                letter-spacing: normal;
                margin-top: 0;
                margin-right: 0;
                margin-bottom: 10px;
                margin-left: 0;
                text-align: left;
            }

            /**
            * @tip Set the styling for all third-level headings in your emails.
            * @style heading 3
            */
            h3{
                color: #3d98c6 !important;
                display: block;
                font-family: Helvetica;
                font-size: 16px;
                font-weight: normal;
                line-height: 100%;
                letter-spacing: normal;
                margin-top: 0;
                margin-right: 0;
                margin-bottom: 10px;
                margin-left: 0;
                text-align: left;
            }

            /**
            * @tip Set the styling for all fourth-level headings in your emails. These should be the smallest of your headings.
            * @style heading 4
            */
            h4{
                color: #808080 !important;
                display: block;
                font-family: Helvetica;
                font-size: 14px;
                font-weight: normal;
                line-height: 100%;
                letter-spacing: normal;
                margin-top: 0;
                margin-right: 0;
                margin-bottom: 10px;
                margin-left: 0;
                text-align: left;
            }

            h4.subtitle {
              color: #808080 !important;
              font-size: 14px;
            }

            /* ========== Header Styles ========== */

            /**
            * @tip Set the background color and bottom border for your email's preheader area.
            * @theme header
            */
            #templatePreheader{
                background-color: #F4F4F4;
                border-bottom: 1px solid #CCCCCC;
            }

            /**
            * @tip Set the styling for your email's preheader text. Choose a size and color that is easy to read.
            */
            .preheaderContent{
                color: #808080;
                font-family: Helvetica;
                font-size: 10px;
                line-height: 125%;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's preheader links. Choose a color that helps them stand out from your text.
            */
            .preheaderContent a:link, .preheaderContent a:visited, /* Yahoo! Mail Override */ .preheaderContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #606060;
                font-weight: normal;
                text-decoration: underline;
            }

            /**
            * @tip Set the background color and borders for your email's header area.
            * @theme header
            */
            #templateHeader{
                background-color: #F4F4F4;
                border-top: 1px solid #FFFFFF;
                border-bottom: 1px solid #CCCCCC;
            }

            /**
            * @tip Set the styling for your email's header text. Choose a size and color that is easy to read.
            */
            .headerContent{
                color: #505050;
                font-family: Helvetica;
                font-size: 20px;
                font-weight: bold;
                line-height: 100%;
                padding-top: 0;
                padding-right: 0;
                padding-bottom: 0;
                padding-left: 0;
                text-align: left;
                vertical-align: middle;
            }

            /**
            * @tip Set the styling for your email's header links. Choose a color that helps them stand out from your text.
            */
            .headerContent a:link, .headerContent a:visited, /* Yahoo! Mail Override */ .headerContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: normal;
                text-decoration: underline;
            }

            #headerImage{
                height: auto;
                max-width: 600px;
            }

            #socialShare img {
                margin-right: 3px;
            }

            /* ========== Body Styles ========== */

            /**
            * @tip Set the background color and borders for your email's body area.
            */
            #templateBody{
                background-color: #FFFFFF;
                border-top: 1px solid #FFFFFF;
                /*border-bottom: 1px solid #CCCCCC;*/
            }

            /**
            * @tip Set the styling for your email's main content text. Choose a size and color that is easy to read.
            * @theme main
            */
            .bodyContent{
                color: #505050;
                font-family: Helvetica;
                font-size: 16px;
                line-height: 150%;
                padding-top: 20px;
                padding-right: 20px;
                padding-bottom: 20px;
                padding-left: 20px;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's main content links. Choose a color that helps them stand out from your text.
            */
            .bodyContent a:link, .bodyContent a:visited, /* Yahoo! Mail Override */ .bodyContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: normal;
                text-decoration: underline;
            }

            .bodyContent img{
                display: inline;
                height: auto;
                max-width: 560px;
            }

            /**
            * @tip Set the background color and border for your email's data table.
            */
            .templateDataTable{
                background-color: #FFFFFF;
            }

            .templateDataTable a:link {
                text-decoration: none;
                color: #3d98c6;
            }

            /**
            * @tip Set the styling for your email's data table text. Choose a size and color that is easy to read.
            */
            .dataTableHeading{
                /*background-color: #E7F1FC;*/
                color: #336699;
                font-family: Helvetica;
                font-size: 14px;
                font-weight: bold;
                line-height: 150%;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's data table links. Choose a color that helps them stand out from your text.
            */
            .dataTableHeading a:link, .dataTableHeading a:visited, /* Yahoo! Mail Override */ .dataTableHeading a .yshortcuts /* Yahoo! Mail Override */{
                color: #FFFFFF;
                font-weight: bold;
            }

            /**
            * @tip Set the styling for your email's data table text. Choose a size and color that is easy to read.
            */
            .dataTableContent{
                border-top: 1px solid #DDDDDD;
                border-bottom: 0;
                color: #404040;
                font-family: Helvetica;
                font-size: 12px;
                line-height: 150%;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's data table links. Choose a color that helps them stand out from your text.
            */
            .dataTableContent a:link, .dataTableContent a:visited, /* Yahoo! Mail Override */ .dataTableContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: bold;
            }

            /* ========== Column Styles ========== */

            .templateColumnContainer{width: 200px;}

            /**
            * @tip Set the background color and borders for your email's column area.
            */
            #templateColumns{
                background-color: #F4F4F4;
                border-top: 1px solid #FFFFFF;
                border-bottom: 1px solid #CCCCCC;
            }

            /**
            * @tip Set the styling for your email's left column content text. Choose a size and color that is easy to read.
            */
            .leftColumnContent{
                color: #505050;
                font-family: Helvetica;
                font-size: 14px;
                line-height: 150%;
                padding-top: 0;
                padding-right: 20px;
                padding-bottom: 20px;
                padding-left: 20px;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's left column content links. Choose a color that helps them stand out from your text.
            */
            .leftColumnContent a:link, .leftColumnContent a:visited, /* Yahoo! Mail Override */ .leftColumnContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: normal;
                text-decoration: underline;
            }

            /**
            * @tip Set the styling for your email's center column content text. Choose a size and color that is easy to read.
            */
            .centerColumnContent{
                color: #505050;
                font-family: Helvetica;
                font-size: 14px;
                line-height: 150%;
                padding-top: 0;
                padding-right: 20px;
                padding-bottom: 20px;
                padding-left: 20px;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's center column content links. Choose a color that helps them stand out from your text.
            */
            .centerColumnContent a:link, .centerColumnContent a:visited, /* Yahoo! Mail Override */ .centerColumnContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: normal;
                text-decoration: underline;
            }

            /**
            * @tip Set the styling for your email's right column content text. Choose a size and color that is easy to read.
            */
            .rightColumnContent{
                color: #505050;
                font-family: Helvetica;
                font-size: 14px;
                line-height: 150%;
                padding-top: 0;
                padding-right: 20px;
                padding-bottom: 20px;
                padding-left: 20px;
                text-align: left;
            }

            /**
            * @tip Set the styling for your email's right column content links. Choose a color that helps them stand out from your text.
            */
            .rightColumnContent a:link, .rightColumnContent a:visited, /* Yahoo! Mail Override */ .rightColumnContent a .yshortcuts /* Yahoo! Mail Override */{
                color: #3d98c6;
                font-weight: normal;
                text-decoration: underline;
            }

            .leftColumnContent img, .rightColumnContent img{
                display: inline;
                height: auto;
                max-width: 260px;
            }

            /* ========== Footer Styles ========== */

            /**
            * @tip Set the background color and borders for your email's footer area.
            * @theme footer
            */
            #templateFooter{
                background-color: #F4F4F4;
                border-top: 1px solid #FFFFFF;
            }

            /**
            * @tip Set the styling for your email's footer text. Choose a size and color that is easy to read.
            * @theme footer
            */
            .footerContent{
                color: #808080;
                font-family: Helvetica;
                font-size: 10px;
                line-height: 150%;
                padding-top: 20px;
                padding-right: 20px;
                padding-bottom: 20px;
                padding-left: 20px;
                text-align: left;
            }

            .footerContent.social, .footerContent.social h4 {
                text-align: center;
            }

            .footerContent.social a {
                margin: 0 10px;
            }

            /**
            * @tip Set the styling for your email's footer links. Choose a color that helps them stand out from your text.
            */
            .footerContent a:link, .footerContent a:visited, /* Yahoo! Mail Override */ .footerContent a .yshortcuts, .footerContent a span /* Yahoo! Mail Override */{
                color: #606060;
                font-weight: normal;
                text-decoration: underline;
            }

            /* /\/\/\/\/\/\/\/\/ MOBILE STYLES /\/\/\/\/\/\/\/\/ */

            @media only screen and (max-width: 480px){
                /* /\/\/\/\/\/\/ CLIENT-SPECIFIC MOBILE STYLES /\/\/\/\/\/\/ */
                body, table, td, p, a, li, blockquote{-webkit-text-size-adjust: none !important;} /* Prevent Webkit platforms from changing default text sizes */
                body{width: 100% !important; min-width: 100% !important;} /* Prevent iOS Mail from adding padding to the body */

                /* /\/\/\/\/\/\/ MOBILE RESET STYLES /\/\/\/\/\/\/ */
                #bodyCell{padding: 10px !important;}

                /* /\/\/\/\/\/\/ MOBILE TEMPLATE STYLES /\/\/\/\/\/\/ */

                /* ======== Page Styles ======== */

                /**
                * @tip Make the template fluid for portrait or landscape view adaptability. If a fluid layout doesn't work for you, set the width to 300px instead.
                */
                #templateContainer{
                    max-width: 600px !important;
                    width: 100% !important;
                }

                /**
                * @tip Make the first-level headings larger in size for better readability on small screens.
                */
                h1{
                    font-size: 24px !important;
                    line-height: 100% !important;
                }

                /**
                * @tip Make the second-level headings larger in size for better readability on small screens.
                */
                h2{
                    font-size: 20px !important;
                    line-height: 100% !important;
                }

                /**
                * @tip Make the third-level headings larger in size for better readability on small screens.
                */
                h3{
                    font-size: 18px !important;
                    line-height: 100% !important;
                }

                /**
                * @tip Make the fourth-level headings larger in size for better readability on small screens.
                */
                h4{
                    font-size: 16px !important;
                    line-height: 100% !important;
                }

                /* ======== Header Styles ======== */

                #templatePreheader{display: none !important;} /* Hide the template preheader to save space */

                /**
                * @tip Make the main header image fluid for portrait or landscape view adaptability, and set the image's original width as the max-width. If a fluid setting doesn't work, set the image width to half its original size instead.
                */
                #headerImage{
                    height: auto !important;
                    max-width: 600px !important;
                    width: 100% !important;
                }

                /**
                * @tip Make the header content text larger in size for better readability on small screens. We recommend a font size of at least 16px.
                */
                .headerContent{
                    font-size: 20px !important;
                    line-height: 125% !important;
                }

                /* ======== Body Styles ======== */

                /**
                * @tip Make the body content text larger in size for better readability on small screens. We recommend a font size of at least 16px.
                */
                .bodyContent{
                    font-size: 18px !important;
                    line-height: 125% !important;
                }

                .templateDataTableContainer {
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<div xmlns="http://www.w3.org/1999/xhtml" xmlns:xn="http://www.xmlnews.org/ns/" class="xn-newslines">

<h1 class="xn-hedline">Schneider Electric Publishes White Paper Detailing Systems for Optimal Data Centre Cooling</h1>

<p class="xn-distributor">PR Newswire</p>

<p class="xn-dateline">LONDON, February 14, 2017</p>
</div>

<div class="xn-content" xmlns="http://www.w3.org/1999/xhtml" xmlns:xn="http://www.xmlnews.org/ns/">

<p>
<span class="xn-location">LONDON</span>, <span class="xn-chron">February 14, 2017</span> /PRNewswire/ --</p>

<p>
<b>The choice of cooling architecture, including hot and cold air containment, is of paramount importance for minimising the OPEX of a data centre. However, an effective control system is also essential when hoping to achieve the maximum energy efficiency and PUE. White Paper 225 details the different levels of cooling control as a basis for achieving the optimal balance of performance and efficiency.</b>
<br>

</p>

<p>Achieving efficient use of electrical power is a major concern for data centre operators for both cost and environmental reasons. Next to the IT itself, the largest consumer of power in a typical data centre is the cooling system. <a href="http://uk.prweb.com/releases/2016/07/prweb13543802.htm" rel="nofollow">Optimising its efficiency</a>, therefore, is greatly to be desired.</p>

<p>Three high-level steps to achieving this goal are: selecting an appropriate cooling architecture; adopting an effective cooling-control system and managing airflow in the IT space. The first of these entails selection of heat rejection method, economiser mode and indoor air-distribution method; the third concerns the separation of air streams into hot and cold airflows using aisle and rack containment. The final step is the continuous monitoring and control of all cooling equipment deployed inside the data centre.</p>

<p>A new White Paper from <a href="http://www.schneider-electric.com/" rel="nofollow">Schneider Electric</a>, the global specialist in energy management and automation, #225, "Optimize Data Center Cooling with Effective Control Systems" discusses the variables that influence cooling performance and describes the complexity of cooling-system dynamics that frequently increase the need for counter-intuitive measures required to achieve the trade off between cooling performance and efficiency.</p>

<p>Issues affecting the cooling process include the fact that cooling systems capacity is always oversized due to availability requirements and data centres operating under less than total IT capacity; the IT load in terms of equipment population and layout frequently changes over time; cooling system efficiency varies with factors other than IT load such as outdoor air temperature, cooling settings and control approaches; compatibility issues arise due to the installation of cooling equipment from different vendors.</p>

<p>Traditional control approaches involving manual adjustments to individual pieces of equipment such as chillers and air conditioners lead to uneven cooling performance as the effect of adjustments made to one unit can lead to hot spots elsewhere in the data centre. Frequently, too, there is no visibility to the performance of the entire cooling system, a flaw that is often compounded by the presence of poor-quality or badly calibrated sensors and meters.</p>

<p>The paper also recommends approaches for effective control systems entailing the use of automatic controls for shifting between different operation mode such as mechanical mode, partial economiser mode and full economiser mode. Indoor cooling devices should be co-ordinated to work together under a centralised control system with the flexibility to change certain settings based on immediate requirements.</p>

<p>The white paper proposes that control systems be categorised into a hierarchy of four levels namely device-level control, group-level control, system-level control and facility-level control for maximum efficiency.</p>

<p>Device-level control involves the control of individual units such as chillers. Group level control refers to the co-ordination of several units of the same type of device, typically from the same equipment vendor and controlled by the same control algorithm. System-level control co-ordinates the operation of different cooling subsystems within a data centre, for example a pump and a CRAH (computer room air handler). Finally, facility-level control integrates all functions of a building into a common network that controls everything in the building from heating, ventilation, air conditioners and lighting systems to the security, emergency power and fire-protection systems.</p>

<p>The paper demonstrates that effective control of cooling systems can maximise cooling capacity, simplify management, eliminate hot spots, <a href="http://blog.schneider-electric.com/datacenter/2016/10/28/energy-effectiveness-focus-data-centers/" rel="nofollow">increase performance, reduce costs and enhance data-centre availability</a>.</p>

<p>White Paper # 225 "Optimize Data Center Cooling with Effective Control Systems" is now avavailable for free download by <a href="http://www.apc.com/wp%3Fwp=225" rel="nofollow">clicking here</a>, or visiting <a href="http://www.apc.com/salestools/VAVR-A4M82C/VAVR-A4M82C_R0_EN.pdf" rel="nofollow">http://www.apc.com/salestools/VAVR-A4M82C/VAVR-A4M82C_R0_EN.pdf</a>
</p>

<p>==Ends==</p>

<p>
<b>About the author</b>&nbsp;</p>

<p>
<span class="xn-person">Paul Lin</span> is a Senior Research Analyst at Schneider Electric's Data Center Science Center. He is responsible for data centre design and operation research and consults with clients on risk assessment and design practices to optimise the availability and efficiency of their data-centre environments.</p>

<p>
<b>About Schneider Electric</b>&nbsp;</p>

<p>Schneider Electric is the global specialist in energy management and automation. With revenues of ~&euro;27 billion in FY2015, our 160,000+ employees serve customers in over 100 countries, helping them to manage their energy and process in ways that are safe, reliable, efficient and sustainable. From the simplest of switches to complex operational systems, our technology, software and services improve the way our customers manage and automate their operations. Our connected technologies reshape industries, transform cities and enrich lives. At Schneider Electric, we call this <b>Life Is On</b>.</p>

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<p>
<b>Related resources:</b> &nbsp;</p>

<ul type="disc">

<li>
<a href="https://www.youtube.com/watch?v=fiH8rYjspN4" rel="nofollow">Schneider Electric &amp; Green Mountain - Data Meets Nature</a>
</li>

<li>
<a href="https://www.youtube.com/watch?v=fDd51Nzf8L8" rel="nofollow">Powering an Efficient Colocation Facility: Green Mountain</a>
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<p>
<b>Hashtags</b><b>:</b> #innovationateverylevel #datacentre #cooling #efficiency #Lifeison</p>

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<p>CONTACT: Media Contact: Schneider Electric, Lavina Dsouza, Tel.: +44-7887-560218, lavina.dsouza@Schneider-electric.com, Spa Communications for Schneider Electric, Rory Flashman-Wells, Tel.: +44-1892-511413, rflashman@spacomms.com <br>
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