On the other hand, Alec’s fan is
currently drawing air from only one end of the tube.
There might be a way to introduce air into
the outer tube that creates a swirling effect around the media to further improve
distribution.
Greg
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]
On Behalf Of Jon Wallace
Sent: Monday, August 08, 2011 3:59
PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST]
Snoopy life support test
That's an interesting work around but keep in mind that depending upon the
space between the tube and canister you could end up with non-uniform
pressurization causing inconsistent transfer of CO2 to the granules and
inefficiency. A stronger fan might do just as well although power
consumption will go up.
Given that Alec had the scrubber at the aft head and both occupants were facing
forward, I can't help but wonder if placement is contributing to the
inefficiency of cleaning the cabin. A forward fan, pointing backward,
would help move CO2 aft and toward the scrubber.
Jon
On 8/8/2011 2:59 PM, Greg wrote:
Sean
makes an excellent point.
With that in mind, maybe we can combine
the two ideas? By inserting the canister into a larger tube and then directing
the blower to pressurize the space between the two? That way, the larger
scrubbing surface will be absorbing CO2 at higher partial pressure and the fan
will be operating at higher efficiency.
Maybe I could build one and we could test
it?
Greg