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<p class="MsoNormal"><span style="color:black">Hi Adam,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I agree with Mr. Paolini, here at Draper we use the same type of duct work he has mentioned and we do not have any issues.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Good Luck<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;color:#1F497D">Mark R. April</span></b><span style="font-size:8.0pt;font-family:"Cambria",serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;color:#1F497D">Senior Equipment Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:#1F497D">Microfabrication Laboratory
<br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black;letter-spacing:1.2pt"><img width="175" height="26" style="width:1.8229in;height:.2708in" id="Picture_x0020_2" src="cid:image001.png@01D8807A.7EA33420" alt="color_logo_small4"></span><i><span style="font-size:9.0pt;color:#1F497D"><br>
555 Technology Square<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;color:#1F497D">Cambridge, MA 02139<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;color:#1F497D"><a href="mailto:mapril@draper.com"><span style="color:#0563C1">mapril@draper.com</span></a>
<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;color:#1F497D">O # 617-258-1613 C # 617-455-1596<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:9.0pt;color:#1F497D"><a href="http://www.draper.com/"><span style="color:#0563C1">www.draper.com</span></a></span></i><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> <b>
On Behalf Of </b>Paolini, Steven<br>
<b>Sent:</b> Tuesday, June 14, 2022 6:13 PM<br>
<b>To:</b> Adam Pettigrew <apettigr@ualberta.ca>; labnetwork@mtl.mit.edu<br>
<b>Subject:</b> Re: [labnetwork] Pirnaha Exhaust Condensation<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Adam,<o:p></o:p></p>
<p class="MsoNormal"> The transition fitting going from round to square should have been fabricated to fit inside the square plenum opening of the hood. It should not need any type of sealant or tape. Hot sulfuric fumes will eventually eat through any material
except for Teflon lined PSP ducting or Polypropylene/Polyethylene.<o:p></o:p></p>
<p class="MsoNormal">That ductwork looks a lot like welded stainless without a Teflon coating. I say this because there are very few joints and it does not seem serviceable. Contact me directly by phone or Email, The solution is not very pleasant to hear.<o:p></o:p></p>
<p class="MsoNormal"> Equipment Dood<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Steve Paolini<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Principal Equipment Engineer<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Harvard University Center for Nanoscale Systems<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">11 Oxford St.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">Cambridge, MA 02138<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt">617- 496- 9816<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><a href="mailto:spaolini@cns.fas.harvard.edu">spaolini@cns.fas.harvard.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:14.0pt"><a href="http://www.cns.fas.harvard.edu">www.cns.fas.harvard.edu</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>>
<b>On Behalf Of </b>Adam Pettigrew<br>
<b>Sent:</b> Tuesday, June 14, 2022 12:11 PM<br>
<b>To:</b> <a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> [labnetwork] Pirnaha Exhaust Condensation<o:p></o:p></p>
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<p class="MsoNormal">Hello everyone,<o:p></o:p></p>
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<p class="MsoNormal">We are having issues with our exhaust ducting from our piranha deck. We have a connection where it attaches to the main ducting which is caulked and taped but it seems that no matter what we seal it with, piranha which has condensed in
the ducting, eats through it. I am wondering if anyone uses a filter/screen of some kind to condense the vapours before going out the exhaust line. Thanks in advance for any advice! <o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">Adam<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Adam Pettigrew</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Systems Technician</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">University of Alberta - nanoFAB</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">W1-028A ECERF Building</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">9107 - 116 Street</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Edmonton, Alberta</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Canada T6G 2V4 Ph: 587-879-1514</span><span style="font-size:10.0pt;color:#222222"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.nanofab.ualberta.ca_&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=-H4Z_jeDfTYjnKPXor15vLwzBllmg8gFrb9m_k9OGks&m=3LcSj68dnIOzirYcLEVklldxwa9Xiuu8cJr4uEl-kBV4WAU-87rkcDNi2mO7tgzP&s=eZY9vWGHDm229ciL2SxXMo7RqaABTmI9uGRHQhj7pMk&e=" target="_blank"><span style="color:#1155CC">www.nanofab.ualberta.ca</span></a></span><span style="color:#222222"><o:p></o:p></span></p>
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