<div dir="ltr"><div>Hi Brian,</div><div><br></div><div>Thanks for the suggestion. Unfortunately, calculating the flow accurately is virtually impossible. We share the LN2 supply with the entire building, so even if we knew the total usage for the building, we'd have no way of knowing how much of that is ours.</div><div><br></div><div>Best,</div><div>Kyle<br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, Feb 13, 2025 at 2:09 PM Brian Little <<a href="mailto:bdlittl2@ncsu.edu">bdlittl2@ncsu.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><span style="font-family:-apple-system,helveticaneue;font-size:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;float:none;display:inline;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);color:rgb(0,0,0)">Hi Kyle,</span><div dir="auto" style="font-family:-apple-system,helveticaneue;font-size:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);color:rgb(0,0,0)">I would recommend checking with your vendor or any other purifier vendor. They have spreadsheets that they can type the purity and flow into that will estimate an approximate lifetime for a given bed size and material.</div><div dir="auto" style="font-family:-apple-system,helveticaneue;font-size:16px;font-style:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration:none;background-color:rgba(0,0,0,0);border-color:rgb(0,0,0);color:rgb(0,0,0)">Brian </div></div><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 13, 2025 at 1:28 PM Kyle Keenan <<a href="mailto:kckeenan@seas.upenn.edu" target="_blank">kckeenan@seas.upenn.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hello All,</div><div><br></div><div>Our cleanroom has been in operation for 11 years and, for high purity N2, we use local purifiers. Given their age, I'm starting to wonder if/when they might need to be replaced. I've looked into it, and doing so would be quite costly. I know there are a ton of variables at play, but generally speaking, for an 11,000 sq/ft facility that uses UPN2 on, perhaps, 15-20 pieces of research equipment and for N2 guns at ~15 wet benches, what would be your expectation? Is this something we even need to worry about? <br></div><div><br></div><div>I'd be interested to read your thoughts.<br clear="all"></div><div><br></div><div>Best,</div></div><div dir="ltr"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Kyle Keenan</div><div><br></div><div>Senior Manager - Laboratory Operations<br></div><div>Quattrone Nanofabrication Facility</div><div>University of Pennsylvania</div><div>P: 215-898-7560</div><div>F: 215-573-4925<br></div></div></div></div>
_______________________________________________<br>
labnetwork mailing list<br>
<a href="mailto:labnetwork@mtl.mit.edu" target="_blank">labnetwork@mtl.mit.edu</a><br>
<a href="https://urldefense.com/v3/__https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork__;!!IBzWLUs!SXHD-3JQE2Rx8l4ginCeykNmSQItqZg6mEzEwDxFYueieojpfyzPMmQ3iW-eWfEhh105OTDIVdrMFG2NVdwshtc$" rel="noreferrer" target="_blank">https://mtl.mit.edu/mailman/listinfo.cgi/labnetwork</a><br>
</blockquote></div></div>
</blockquote></div><div><br clear="all"></div><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Kyle Keenan</div><div><br></div><div>Senior Manager - Laboratory Operations<br></div><div>Quattrone Nanofabrication Facility</div><div>University of Pennsylvania</div><div>P: 215-898-7560</div><div>F: 215-573-4925<br></div></div></div>