Development Status of an EVA-sized Cycling Amine Bed System for Spacesuit Carbon Dioxide and Humidity Removal Hamilton Sundstrand

Format:

Conference/Event

Author/Creator:

Papale, William, author.

Conference Name:

International Conference On Environmental Systems (2007-07-09 : Chicago, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

Under a NASA sponsored technology development activity, Hamilton Sundstrand has designed, fabricated, tested and delivered a prototype solid amine-based carbon dioxide (CO2) and water (H2O) vapor removal system sized for Extravehicular Activity (EVA) operation. The prototype system employs two alternating and thermally-linked solid amine sorbent beds to continuously remove CO2 and H2O vapor from a closed environment. While one sorbent bed is exposed to the vent loop to remove CO2 and water vapor, the other bed is exposed to a regeneration circuit, defined as either vacuum or an inert sweep gas stream. A linear spool valve, coupled directly to the amine canister assembly, is utilized to simultaneously divert the vent loop flow and regeneration circuit flow between the two sorbent beds. A variable cycle time concept was evaluated to self-optimize system operation according to the simulated metabolic challenge to investigate the performance for an anticipated metabolic load profile of a typical EVA mission. Concurrent H2O vapor removal performance was also evaluated over a range of anticipated humidity conditions. This paper describes the current state of development for an EVA-sized cycling amine bed system and presents the results of laboratory testing of the prototype system

Notes:

Vendor supplied data

Publisher Number:

2007-01-3272

Access Restriction:

Restricted for use by site license