Design and Assembly of an integrated Metabolic heat regenerated Temperature Swing Adsorption (MTSA) Subassembly Engineering Development Unit

Padilla, Sebastian A.; Powers, Aaron; Iacomini, Christie; Bower, Chad; Paul, Heather L.

doi:10.2514/6.2012-3485

Cited by 1 publication

(3 citation statements)

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“…It is noted that significantly more bridging between pores occurred in the previous test articles than in the EDU which had much improved coating characteristics at an even high density of wash coat. 7 Fully blocked pores are functionally inaccessible to CO 2 over both the adsorption and desorption intervals. Additionally there is always the chance of fouling of the sorbent, which could reduce performance.…”

Section: E Results and Data Analysismentioning

confidence: 99%

“…To demonstrate the strong impact of weight loading performance on system parameters the analysis tool developed to optimize EDU design 7 was exercised with the increased sorbent loading ( 1.65 g / in 3 of sorbent bed 7 ) and the full 17.75% potential suggested by the UOP data. Results are shown in Table 2.…”

Section: E Results and Data Analysismentioning

confidence: 99%

“…The design and manufacture is summarized in Ref. 7. The sorbent bed forms the base, cylindrical structure around which everything else is attached.…”

Section: Lunar Testingmentioning

confidence: 99%

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Simulated Lunar Testing of Metabolic heat regenerated Temperature Swing Adsorption

Padilla

Bower

Iacomini

et al. 2012

42nd International Conference on Environmental Systems

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Metabolic heat regenerated Temperature Swing Adsorption (MTSA) technology is being developed for thermal and carbon dioxide (CO 2 ) control for a Portable Life Support System (PLSS), as well as water recycling. An Engineering Development Unit (EDU) of the MTSA Subassembly (MTSAS) was designed and assembled for optimized Martian operations, but also meets requirements for lunar operations. For lunar operations the MTSA sorption cycle is driven via a vacuum swing between suit ventilation loop pressure and lunar vacuum. The focus of this effort was testing in a simulated lunar environment. This environment was simulated in Paragon's ECLSS Human-rating Facility (EHF) chamber. The objective of the testing was to evaluate the full cycle performance of the MTSAS EDU, and to assess CO 2 loading and pressure drop of the wash coated aluminum reticulated foam sorbent bed. Lunar environment testing proved out the feasibility of pure vacuum swing operation, making MTSA a technology that can be tested and used on the Moon prior to going to Mars. Testing demonstrated better than expected CO 2 loading on the sorbent and nearly replicates the equilibrium data from the sorbent manufacturer. This exceeded any of the previous sorbent loading tests performed by Paragon. Subsequently, the increased performance of the sorbent bed design indicates future designs will require less mass and volume than the current EDU rendering MTSA as very competitive for Martian PLSS applications. Nomenclature

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Section: E Results and Data Analysismentioning

confidence: 99%

Section: E Results and Data Analysismentioning

confidence: 99%