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Test evaluation of space station ECLSS maintenance conceptsThe Space Station Prototype (SSP) Environmental Control and Life Support System (ECLSS) hardware was designed and built to be maintainable by the flight crew. To achieve this goal, subsystems were designed for ease of component removal and installation, which included accessibility to component fasteners and connectors, adequate tool clearance, minimum fluid loss during changeout, positive capture of loose parts during changeout, replacement by one crewman, and protection of adjacent parts during maintenance. During testing of this hardware, many day-to-day problems arose which allowed the evaluation of the maintenance concepts under actual maintenance conditions. This paper briefly discusses the maintenance objectives of the hardware design. Specific maintenance designs and their test evaluations are discussed. A removable cartridge valve concept for liquid line components and threaded mechanical fittings and V-band couplings for gaseous line components are critiqued. Other maintenance devices are also evaluated.
Document ID
19790028576
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Reysa, R. P.
(Boeing Co. Houston, Tex., United States)
Flugel, C. W.
(United Technologies Corp. Hamilton Standard Div., Windsor Locks, Conn., United States)
Thompson, C. D.
(NASA Johnson Space Center Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Subject Category
Man/System Technology And Life Support
Report/Patent Number
ASME PAPER 78-ENAS-43
Meeting Information
Meeting: American Society of Mechanical Engineers, Intersociety Conference on Environmental Systems
Location: San Diego, CA
Start Date: July 10, 1978
End Date: July 13, 1978
Accession Number
79A12589
Distribution Limits
Public
Copyright
Other

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