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Continued Development of the Rapid Cycle Amine (RCA) System for Advanced Extravehicular Activity SystemsDevelopment activities related to the Rapid Cycle Amine (RCA) Carbon Dioxide (CO2) and Humidity control system have progressed to the point of integrating the RCA into an advanced Primary Life Support System (PLSS 2.0) to evaluate the interaction of the RCA among other PLSS components in a ground test environment. The RCA 2.0 assembly (integrated into PLSS 2.0) consists of a valve assembly with commercial actuator motor, a sorbent canister, and a field-programmable gate array (FPGA)-based process node controller. Continued design and development activities for RCA 3.0 have been aimed at optimizing the canister size and incorporating greater fidelity in the valve actuator motor and valve position feedback design. Further, the RCA process node controller is envisioned to incorporate a higher degree of functionality to support a distributed PLSS control architecture. This paper will describe the progression of technology readiness levels of RCA 1.0, 2.0 and 3.0 along with a review of the design and manufacturing successes and challenges for 2.0 and 3.0 units. The anticipated interfaces and interactions with the PLSS 2.0/2.5/3.0 assemblies will also be discussed.
Document ID
20140003743
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Papale, William
(United Technologies Aerospace Systems Windsor Locks, CT, United States)
Chullen, Cinda
(NASA Johnson Space Center Houston, TX, United States)
Campbell, Colin
(NASA Johnson Space Center Houston, TX, United States)
Conger, Bruce
(Alliant Techsystems, Inc. Houston, TX, United States)
McMillin, Summer
(Jacobs Technology, Inc. Houston, TX, United States)
Jeng, Frank
(Barrios Technology, Inc. Houston, TX, United States)
Date Acquired
April 25, 2014
Publication Date
January 1, 2014
Subject Category
Man/System Technology And Life Support
Report/Patent Number
JSC-CN-29955
Meeting Information
Meeting: International Conference on Environmental Systems
Location: Tucson, AZ
Country: United States
Start Date: July 13, 2014
End Date: July 17, 2014
Sponsors: American Society of Mechanical Engineers, Texas Tech Univ., American Inst. of Aeronautics and Astronautics, American Inst. of Chemical Engineers
Distribution Limits
Public
Copyright
Public Use Permitted.
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