[PSUBS-MAILIST] Ballast air

Wed Mar 11 23:20:52 EDT 2015

OK I follow.So would the filter system filter out the smoke?I see firemen using compressed air, not filters.Flown over Houston but never visited.Alan
      From: Adam Lawrence via Personal_Submersibles <personal_submersibles at psubs.org>
 To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
 Sent: Thursday, March 12, 2015 4:04 PM
 Subject: Re: [PSUBS-MAILIST] Ballast air

Allen, No, not breathing pure O2, just enough to sustain you at the normal needed consumption rate, this O2 is mixed with filtered and scrubbed cabin air at the canister when you inhale. A one tam sub, I am in Houston Texas. Adam

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Wednesday, March 11, 2015 9:46 PM
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] Ballast air

So are you breathing pure O2 in an emergency situation?I guess the only time you would have a full face mask onis when there is smoke in the cabin from a fire.If you breathed pure O2 you would be adding more fuel to theflames.What sort of sub do you own Adam & what part of the World are you from?I'm down in N.Z.Alan
From: Adam Lawrence via Personal_Submersibles <personal_submersibles at psubs.org>
To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
Sent: Thursday, March 12, 2015 3:24 PM
Subject: Re: [PSUBS-MAILIST] Ballast air

Hi Allen, What I have is simpler than a full blown rebreather.The oxygen supply/flow enters the cabin at the scrubber canister. The canister has an air filter on it already (dust/smoke/hydrogen sulfide...). The emergency piece of equipment is a full face mask with a hose that connects to the scrubber assembly (fan off) on the inhale side, exhale goes back into the cabin. The next simple version may be just a full face mask with dust/vapor cartridge, good enough to keep your eyes and lungs clean while making a quick ascent. Those millionaires get all the toys. Adam

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan James via Personal_Submersibles
Sent: Wednesday, March 11, 2015 5:27 PM
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] Ballast air

Hi Adam,that would require a rebreather style set up to do that.I believe they had a rebreather back up on James Camerons sub.A bit expensive & complicated.Alan
From: Adam Lawrence via Personal_Submersibles <personal_submersibles at psubs.org>
To: 'Personal Submersibles General Discussion' <personal_submersibles at psubs.org> 
Sent: Thursday, March 12, 2015 8:27 AM
Subject: Re: [PSUBS-MAILIST] Ballast air

For emergencies, wouldn’t you use a full-face mask connected to a CO2
scrubber and air filter and pure oxygen, all on the inhale side...

Compressed scuba air would increase cabin pressure and make things
uncomfortable...

-----Original Message-----
From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org]
On Behalf Of hank pronk via Personal_Submersibles
Sent: Wednesday, March 11, 2015 10:26 AM
To: Personal Submersibles General Discussion
Subject: Re: [PSUBS-MAILIST] Ballast air

Brian,
I don't mean oxygen, I mean  regular scuba air.  I have and am sure all
other subs have scuba breathing apparatus for emergencies like smoke.  I
take air from my ballast supply for that purpose.  If your ballast air is
Nitrogen then you will need an extra tank for emergency breathing.  
Hank --------------------------------------------
On Wed, 3/11/15, Brian Cox via Personal_Submersibles
<personal_submersibles at psubs.org> wrote:

Subject: Re: [PSUBS-MAILIST] Ballast air
To: "Personal Submersibles General Discussion"
<personal_submersibles at psubs.org>
Received: Wednesday, March 11, 2015, 10:18 AM

Yes, my oxygen will be a separate
tank, or tanks.

Brian

--- personal_submersibles at psubs.org
wrote:

From: hank pronk via Personal_Submersibles
<personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion
<personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Ballast air
Date: Wed, 11 Mar 2015 05:37:11 -0700

Brian,
You must be planning to have a separate tank for emergency  air for
breathing, in case of fire etc.
Hank
--------------------------------------------
On Wed, 3/11/15, Brian Cox via Personal_Submersibles
<personal_submersibles at psubs.org>
wrote:

  Subject: [PSUBS-MAILIST] Ballast air
  To: "PSubs" <personal_submersibles at psubs.org>
  Received: Wednesday, March 11, 2015, 2:50 AM

  I'm planning on having
  3 - 300cu ft air cylinders for my ballast supply air.
  I noticed that if I get them filled with nitrogen it is
  cheaper than getting breathing or industrial air
  !   That is, until I get my own
  compressor. Brian

  -----Inline Attachment Follows-----

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