<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Is this not just a conventional extruded (or skived or EDMed) heat sink with a fan? Sure, it’s a good idea to replace dozens of tiny 1U high fans with fewer big fans.
<o:p></o:p></p>
<p class="MsoNormal">This doesn’t seem particularly novel – high power amplifiers and power supplies have used the “parts on the outside of an aluminum box with a fan” forever.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’ve got one of these sitting next to my desk at work:<br>
<a href="https://www.minicircuits.com/WebStore/dashboard.html?model=ZHL-30W-262-S%2B">https://www.minicircuits.com/WebStore/dashboard.html?model=ZHL-30W-262-S%2B</a><o:p></o:p></p>
<p class="MsoNormal">90W DC in, 30W RF out, the other 60W goes out as heat.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Beowulf <beowulf-bounces@beowulf.org> on behalf of "Chuck_Petras@selinc.com" <Chuck_Petras@selinc.com><br>
<b>Date: </b>Thursday, January 24, 2019 at 12:56 PM<br>
<b>To: </b>"beowulf@beowulf.org" <Beowulf@beowulf.org><br>
<b>Subject: </b>[Beowulf] A Cooler Cloud: A Clever Conduit Cuts Data Centers? Cooling Needs by 90 Percent<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Well, this is interesting.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">"According to Forced Physics’ <</span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__forcedphysics.com_&d=DwMFAw&c=-_uRSsrpJskZgEkGwdW-sXvhn_FXVaEGsm0EI46qilk&r=fawF3TRTwCqlaBkoLcxYCr4F4NRwCc64hmEgi9rHPpE&m=zr6lAlVphGxOQTXSElww9hGpqb9IZPik0_MN2v8Fqjs&s=lb4Hi9X8NKIYWe_e1RU3Cw4gr9Uz_B7n5pnCNY0ss3U&e="><span style="font-size:10.0pt;font-family:"Arial",sans-serif">https://forcedphysics.com/</span>
[forcedphysics.com]</a><span style="font-size:10.0pt;font-family:"Arial",sans-serif">> chief technology officer, David Binger, the company’s conductor can help a typical data center eliminate its need for water or refrigerants and shrink its 22-MW load by
7.72 MW, which translates to an annual reduction of 67.6 million kWh. That data center could also save a total of US $45 million a year on infrastructure, operating, and energy costs with the new system, according to Binger. “We are solving the problem that
electrons create,” he said."</span> <br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">A Cooler Cloud: A Clever Conduit Cuts Data Centers’ Cooling Needs by 90 Percent</span>
<br>
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__spectrum.ieee.org_energy_environment_a-2Dcooler-2Dcloud-2Da-2Dclever-2Dconduit-2Dcuts-2Ddata-2Dcenters-2Dcooling-2Dneeds-2Dby-2D90-2Dpercent&d=DwMFAw&c=-_uRSsrpJskZgEkGwdW-sXvhn_FXVaEGsm0EI46qilk&r=fawF3TRTwCqlaBkoLcxYCr4F4NRwCc64hmEgi9rHPpE&m=zr6lAlVphGxOQTXSElww9hGpqb9IZPik0_MN2v8Fqjs&s=VuDTSuinKPMpF6NCztFZkSGOVo3LD7MLjroIj_sn0ao&e="><span style="font-size:10.0pt;font-family:"Arial",sans-serif">https://spectrum.ieee.org/energy/environment/a-cooler-cloud-a-clever-conduit-cuts-data-centers-cooling-needs-by-90-percent</span>
[spectrum.ieee.org]</a> <br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
<br>
Chuck Petras, PE**<br>
Schweitzer Engineering Laboratories, Inc<br>
Pullman, WA 99163 USA<br>
</span><a href="http://www.selinc.com/"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">http://www.selinc.com</span></a><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
<br>
SEL Synchrophasors - A New View of the Power System <</span><a href="http://synchrophasor.selinc.com/"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">http://synchrophasor.selinc.com</span></a><span style="font-size:10.0pt;font-family:"Arial",sans-serif">><br>
<br>
Making Electric Power Safer, More Reliable, and More Economical (R)<br>
<br>
** Registered in Oregon.<br>
<br>
</span><o:p></o:p></p>
</div>
</body>
</html>