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  Mercury spacesuit carbon dioxide vent

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Author Topic:   Mercury spacesuit carbon dioxide vent
Explorer1
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Posts: 104
From: Los Angeles, CA, USA
Registered: Apr 2019

posted 01-26-2020 02:16 PM     Click Here to See the Profile for Explorer1   Click Here to Email Explorer1     Edit/Delete Message   Reply w/Quote
The Gemini spacesuits had two sockets on the abdomen of the suit. One of the sockets took in oxygen from the environmental control system of the spacecraft and the other socket I believe vented carbon dioxide out through a hose.

The Mercury spacesuits had two sockets as well — one on the abdomen of the suit and the other on the side of the helmet. But both of these sockets took in oxygen. How did the Mercury spacesuits vent out carbon dioxide?

oly
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Posts: 919
From: Perth, Western Australia
Registered: Apr 2015

posted 01-26-2020 04:34 PM     Click Here to See the Profile for oly   Click Here to Email oly     Edit/Delete Message   Reply w/Quote
A few seconds searching Google using the words "Mercury Spacesuit" reveals this page of information that may help.

Jim Behling
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Posts: 1474
From: Cape Canaveral, FL
Registered: Mar 2010

posted 01-27-2020 09:57 AM     Click Here to See the Profile for Jim Behling   Click Here to Email Jim Behling     Edit/Delete Message   Reply w/Quote
It didn't vent CO2, it just vented exhaled "air." O2 went in the helmet and exhaled "air" (O2 and CO2) came out the suit connector.

Same as Gemini, O2 in one and O2 and CO2 out the other.

Explorer1
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Posts: 104
From: Los Angeles, CA, USA
Registered: Apr 2019

posted 01-28-2020 02:46 PM     Click Here to See the Profile for Explorer1   Click Here to Email Explorer1     Edit/Delete Message   Reply w/Quote
Any idea of how it drew the exhaled air out of the helmet? Was it something like a vacuum?

Jim Behling
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Posts: 1474
From: Cape Canaveral, FL
Registered: Mar 2010

posted 01-28-2020 07:20 PM     Click Here to See the Profile for Jim Behling   Click Here to Email Jim Behling     Edit/Delete Message   Reply w/Quote
No need to "draw' it out. Read what I said. The O2 flow was into the helmet (no exit). O2 and exhaled moist O2/CO2 went down into the suit (via the neck) and exited through the outlet. That is how the CO2 and humidity exited the suit.

All times are CT (US)

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