International Space Station (ISS) Environmental Control and Life Support System (ECLSS) Vent Flow Reflection and Detection by Robotic External Leak Locator (RELL)On-orbit Robotic External Leak Locator (RELL) (i.e., mass spectrometer and ion gauge) measurements on the International Space Station (ISS) are presented to show the detection of recurring Environmental Control and Life Support System (ECLSS) vents at multiple ISS locations and RELL pointing directions. The path of ECLSS effluents to the RELL detectors is not entirely obvious at some locations, but the data indicates that diffuse gas-surface reflection or scattering resulting from plume interaction with vehicle surfaces is responsible. RELL was also able to confirm the ISS ECLSS constituents and distinguish them from the ammonia leak based on the ion mass spectra and known venting times during its operation to locate a leak in the ISS port-side External Active Thermal Control System (EATCS) coolant loop.
Document ID
20180007588
Acquisition Source
Johnson Space Center
Document Type
Presentation
Authors
Huang, Alvin Y. (Boeing Co. Houston, TX, United States)
Deal, Alexandra M. (Boeing Co. Houston, TX, United States)
Fox, Katie L. (Boeing Co. Houston, TX, United States)
Heiser, Michael J. (Boeing Co. Houston, TX, United States)
Hartman, William A. (Boeing Co. Houston, TX, United States)
Mikatarian, Ronald R. (Boeing Co. Houston, TX, United States)
Davis, Matthew J. (Boeing Co. Houston, TX, United States)
Naids, Adam (NASA Johnson Space Center Houston, TX, United States)
Bond, Timothy A. (NASA Johnson Space Center Houston, TX, United States)
Johnson, Brien (NASA Johnson Space Center Houston, TX, United States)
Rossetti, Dino J. (Conceptual Analytics, LLC Glenn Dale, MD, United States)
Date Acquired
November 7, 2018
Publication Date
August 20, 2018
Subject Category
Man/System Technology And Life Support
Report/Patent Number
JSC-E-DAA-TN59670
Meeting Information
Meeting: SPIE Optical Engineering + Applications
Location: San Diego, CA
Country: United States
Start Date: August 19, 2018
End Date: August 23, 2018
Sponsors: International Society for Optical Engineering