[PSUBS-MAILIST] scrubber performance

hank pronk via Personal_Submersibles personal_submersibles at psubs.org
Sat May 26 17:39:43 EDT 2018


 Al,With Gamma's original scrubber, you just pour the absorbent in and tap the side.  I could put a screen on top with a weight I suppose.Hank
    On Saturday, May 26, 2018, 3:09:29 PM MDT, Al Secor via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hank,
When the scrubbers are not all the way full, you want to make sure that they are still compacted such that you don't have any channeling of the air bypassing the scrubber material. Al Secor

      From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Saturday, May 26, 2018 1:25 PM
 Subject: [PSUBS-MAILIST] scrubber performance
  
Hi All,Today I did some extensive scrubber testing.  Gamma has 3 axial scrubbers, one is Gamma'a original scrubber from 1971 with a smaller quiet fan.  The next one is a home made scrubber made the same as Gamma's original, the third is a re-breather scrubber with a computer fan.Interestingly after reading through some information Cliff sent me, I learned that the flow rate is critical.  The only way I can change that is to fill the scrubber canister more or less.  I started with 3\4 full canisters and a full re-breather canister and had a CO2 level of 950 PPM.  With all three canisters full I had a CO2 level of 1133 PPM.  So clearly the flow rate makes a big difference.  Now I understand why Gamma's original scrubber had such a big fan, in order for the canister to be full, the fan needs to be quite powerful.I also have a true appreciation of how well the altimeter indicates how well the O2 level and CO2 level are monitored.If the Altimeter was off zero even the tiniest bit, it correlated with the instruments perfectly.  Hank_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


   _______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20180526/d3e1540a/attachment.html>


More information about the Personal_Submersibles mailing list