<div dir="ltr"><font color="#000000" face="Times New Roman" size="3">
</font><p style="margin:0in 0in 10pt"><font face="Calibri"><font size="3"><font color="#000000">Hank, don’t know all the detail on the Deepworker 2000 but
will convey what I know.<span> </span></font></font><font color="#000000" size="3">Maybe Phil will
chime in with details.</font></font></p><font color="#000000" face="Times New Roman" size="3">
</font><p style="margin:0in 0in 10pt"><font face="Calibri"><font size="3"><font color="#000000">The system uses his O2 bellow add valve which bleeds 100% O2
into the cabin based on a drop in barometric pressure from the time the hatch
was closed.<span> </span></font></font><font color="#000000" size="3">At the time of launch SOP
calls for them to pull a slight vacuum in the boat to assure the hatch o-ring
is sealed and to make it easier to dog the hatch latches.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">The last spec I saw on the DW 2000, the endurance
is 80 hours. There are two scrubbers (one redundant), each containing 12 lbs of
SodaSorb HP. There is also a BIBS system.</font><span><font color="#000000" size="3">
</font></span><font color="#000000" size="3">They have O2 and CO2 monitors.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">The
O2 bottles are externally mounted.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">Since
his life support endurance is 80 hours, I he should have in excess of 80 scf of
O2.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">I don’t know how the Sodasorb is set
up to filter, axial or radially nor do I know the type of blower he is using in
the scrubbers.</font><span><font color="#000000" size="3"> </font></span><font color="#000000" size="3">As long as the blower on
the scrubber is strong enough to circulate the cabin air through the filter
every hour or so, the 100% O2 that is blead into the cabin will mix with the
cabin air due to molecular diffusion.</font></font></p><font color="#000000" face="Times New Roman" size="3">
</font><p style="margin:0in 0in 10pt"><font size="3"><font color="#000000"><font face="Calibri">I believe he uses the same basic life support system on all
his boats.<span> </span></font></font></font></p><font color="#000000" face="Times New Roman" size="3">
</font><p style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Phil’s paper on Life support </font><a href="http://www.psubs.org/design/lifesupport/lifesupport.pdf"><font color="#0000ff" face="Calibri" size="3">http://www.psubs.org/design/lifesupport/lifesupport.pdf</font></a><font color="#000000" face="Calibri" size="3">
is a good read on how his bellows add system work and life support in general.</font></p><font color="#000000" face="Times New Roman" size="3">
</font><p style="margin:0in 0in 10pt"><font size="3"><font color="#000000"><font face="Calibri">When Phil let the PSub members dive his subs at the
Vancouver PSub Convention, I remember seeing the scrubbers and noting they were
compact but I was more focused on diving the DW 2000 so did not pay too much attention
to the scrubber design.<span> </span></font></font></font></p><font color="#000000" face="Times New Roman" size="3">
</font><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">The two key things I would like to know is what is the make
and model of the blower he uses and is the filter oriented to pull the cabin
air radially or axially through the Sodasorb HP.</font></div><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3"><br></font></div><div style="margin:0in 0in 10pt"><font color="#000000" face="Calibri" size="3">Cliff</font></div><font color="#000000" face="Times New Roman" size="3">
</font></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 1, 2016 at 7:13 AM, hank pronk via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:rgb(0,0,0);font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:12px;background-color:rgb(255,255,255)"><div id="m_-27303891125775751yui_3_16_0_ym19_1_1478002255312_2773">Hi All,</div><div id="m_-27303891125775751yui_3_16_0_ym19_1_1478002255312_2773">Can anyone explain how the DW scrubber works? How is the air defused equally when the shape is irregular. I want to copy the concept of a scrubber that fits tight to the hull to save space. </div><div id="m_-27303891125775751yui_3_16_0_ym19_1_1478002255312_2773">Thanks'</div><span class="HOEnZb"><font color="#888888"><div id="m_-27303891125775751yui_3_16_0_ym19_1_1478002255312_2773">Hank</div></font></span></div></div><br>______________________________<wbr>_________________<br>
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