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<p class="MsoNormal">I’m trying to reduce the annual energy use of some DOAS/ERV fans which will run at constant volume 24/7 365 days per year.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Right now we have 3.5” TSP on the supply/OA and 2.25” TSP on the exhaust. I’m looking at some of the obvious measures to reduce the design static.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Right now the fan efficiencies in this unit are in the mid to low 50%s. The fans are part of the ERV and are just described as “forward curved;” I didn’t think a squirrel cage fan could handle that static but whatever they have is rated
for it. <o:p></o:p></p>
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<p class="MsoNormal">So, would any of the designers on this list have specific suggestions for ERVs with fans that would be more efficient at these conditions?<o:p></o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Fred<o:p></o:p></p>
<p class="MsoNormal"><b><span style="color:black">Fred Porter, BEMP, LEED</span></b><b><span style="color:#1F497D">©</span></b><b><span style="color:black"> AP<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-bottom:2.0pt"><span style="color:#7F7F7F">Senior Energy Analyst<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:#005DAA">Architectural Energy Corporation<o:p></o:p></span></b></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;color:#005DAA">A Member of NORESCO Energy and Sustainability Services<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#7F7F7F">2540 Frontier Ave, Suite 100, Boulder, CO 80301<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#7F7F7F">Phone 303.459.7425 |
<a href="mailto:fporter@archenergy.com"><span style="color:blue">fporter@archenergy.com</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#807F83"><a href="http://www.archenergy.com"><span style="color:blue">www.archenergy.com</span></a></span><span style="font-size:9.0pt;color:#807F83"><o:p></o:p></span></p>
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