Everest Climber

OceanOpportunity

as for simple O2 monitoring, check out Subsea Systems Subsea Systems - Rebreather Solutions.

they produce a plug and play PO2 monitor that would likely serve you well. While I'm not sure of any actual 'testng', they do have a neat shot of the unit functioning perfectly while frozen in a block of ice.

There are also scrubbers out there suitable for LiOH use. Get in touch with Bill Stone at Stone Aerospace. He has designs for a number of LiOH friendly scrubbers.

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Michael Lombardi
Oceans of Opportunity
www.oceanopportunity.com

Elected Director, Society for Human Performance in Extreme Environments

MN'07, The Explorers Club

Project Manager, Diving a Dream

Mdemon

What did Bear Grylls use when he flew over it the other day? Everest, that is.

jaap

Hi Spinflyer

Have you ruled out using a peroxide based system (using say KO2) for both scrubbing and O2-generation? Or for the O2-supply some other O2-generating chemical system like chlorate candles? Or even other emerging reusable "chemical" O2-releasing systems?

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My initials: JAAP

Steve

Indeed. I can't help but thinking a candle solution may be the most suitable option.

That; and harden the **** up and do it without O2

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WARNING: I contain occasional coarse language, extreme sexual references, nudity, and adult themes, which may offend some people - Usually churchy types.

koputai

Yeah, only one person has ever truly climbed Everest, Aussie Tim McCartney-Snape in 1990. He walked from sea level in the Bay of Bengal, all the way to the top of Everest, solo, with no oxygen. Amazing stuff.

Of course, I'm not demeaning others who climb or attempt to climb it, it takes a tougher person than me to go there.

Cheers,
Jason.

sven

Jason,

I can see a competition brewing here: the first Inspo or O2ptima on Mt Everest.

And NO, I am not volunteering

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Sven

[SIZE=1]The Sydney Project website: [URL]http://www.sydneyproject.com[/URL]
My Blog: [URL]http://sven.rebreatherworld.com[/URL]

"Whenever you find yourself on the side of the majority, it's time to pause and reflect." Mark Twain[/SIZE]

caveseeker7

Probably just got lost looking for a bar ...

Wouldn't be suprised if Curt be covering their approach from the top of Mt. Megverest.

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Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.'!"

dantheman

Not bad.

He's no Goran Kropp though . . .

--dan

spinflyer

A potassium super-oxide system was experimented with several decades ago.
Closed circuit oxygen system, high altitude oxygen
The real issue seems to be weight. Bottled O2 and a CO2 scrubber seems to provide the best weight benefit. Some quick calculations indicated that the weight necessary to sustain a standard Everest climb profile would require to much weight.

I am not familiar with the emerging technologies you mentioned but I would welcome any input. Thanks.

Duncan Price

This thread has got me thinking (danger). Several years ago I gave a presentation on my pendulum O2 rig at a cave rescue meeting on foul air underground. On Tuesday night we were "dry" caving and encountered high CO2 at the bottom due to farmyard effluent (known as "cowsh" in the caving sphere). Am now thinking along the lines of a very lightweight O2 rig (or possibly just a CO2 filter) for such situations.

I am planning on visiting a cave with known CO2 problems - there's a sump at the bottom to dive but I'm also minded to come prepared for above water situations.

Either I knock up a full O2 rebreather (v. small scrubber and fed from an ABLJ cylinder) or breathe in cave air thru an open scrubber and vent back to the cave. For the latter I could introduce a small "leak" of O2 into the inhale side to compensate for any reduced O2 in the cave air - the flow would be miniscule so going fully closed (i.e fitting a counterlung) would not really be an advantage. Basically its a CO2 gas mask with boosted O2. Making it "open" would mean that it could not be used for diving and would prevent the user from getting too adventurous. An O2 sensor would be a benefit - maybe its an application for a simple HUD which goes red if the ppO2 drops below 0.17?

Comments welcome.