A Novel Thermo-Vacuum Microlith Adsorber for TCCS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NAS8-02108
Agency Tracking Number: 013199
Amount: $600,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
410 Sackett Point Road, North Haven, CT, 06473
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Subir Roychoudhury
 Manager, Microlith Development
 (203) 287-3700
Business Contact
 Paul Donahe
Title: Business Official
Phone: (203) 287-3700
Email: pdonahe@precision-combustion.com
Research Institution
The Trace Contaminant Control System (TCCS) used onboard the International Space Station provides for control of trace cabin air contamination originating from materials off-gassing, human metabolism, hygiene activities, experimental facilities, etc. The TCCS removes contaminants via a combination of techniques. The U.S. segment uses an expendable, activated charcoal bed (22.7 kg charcoal), a high temperature catalytic oxidizer assembly and a postsorbent LiOh bed. The Russian system uses an expendable activated carbon canister (1.3 kg) followed by two regenerative activated charcoal beds (16 kg apiece, 7.4 kg charcoal in each) and a room temperature CO oxidizer. PCI is proposing to develop a novel, regenerable adsorber using zeolites/adsorbents coated on Microlith? substrates to replace the activated charcoal beds. Phase I results indicate the potential to reduce 15 kg charcoal weight to less than 2 kg of adsorbent with a proportionate reduction in size and a reduction in housing weight. The Phase II proposes to develop and optimize a resistively heated, thermo-vacuum Microlith? adsorber to be used as a simple, lightweight and cost effective system that aims to demonstrate safe and reliable operation with minimal maintenance, electrical power and crew-time requirements. A prototype will be delivered to NASA upon Phase II conclusion.

* Information listed above is at the time of submission. *

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