FSWR Microlith Performance Metrics AssessmentR. Cummings, J. Knox
NASA, Marshall Space Flight Center, Huntsville, AL, USA
COMSOL Multiphysics® has been used to develop assessment tools for the NASA-sponsored Precision Combustion, Inc. (PCI) regenerable Microlith®- based adsorber modules. The Full Scale Water Removal (FSWR) PCI Microlith® was initially modeled for comparison with exit velocity data, measured while exterior canister was removed. Measurement data as well as flow analysis showed that the velocity magnitudes had noticeably high edges effects as depicted in Figure 1. Modeling then showed that significant damping of peak edge velocities could be accomplished with better structured insulation, as depicted in Figure 2. Measurement data after replacement of the matted insulation at top and bottom of the sorbent bed with Durablanket S insulation confirmed that the exit velocities averaged approximately 11.8 feet/minute and had significantly lessened edge effects. The FSWR model continues to be improved with additional COMSOL modules to further assess performance parameters.