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Novel Vapor Chambers for Heating and Cooling of Advanced Sorption Systems

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC23CA061
Agency Tracking Number: 221742
Amount: $869,952.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: H3
Solicitation Number: SBIR_22_P2
Solicitation Year: 2022
Award Year: 2023
Award Start Date (Proposal Award Date): 2023-06-15
Award End Date (Contract End Date): 2025-06-14
Small Business Information
1046 New Holland Avenue
Lancaster, PA 17601-5688
United States
DUNS: 126288336
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Michael Ellis
 (717) 205-0618
Business Contact
 William Anderson
Title: timguhl
Phone: (717) 205-0602
Research Institution

The Carbon Dioxide Removal Assembly (CDRA) is a subassembly of the Environmental Control and Life Support (ECLS) system on the International Space Station (ISS). The function of the CDRA is to remove CO2 from cabin air, ideally turning it into a useful resource such as water or methane. This is accomplished using a sorbent material, zeolite, to adsorb and desorb CO2. Zeolite has a highly porous molecular structure, and CO2 can favorably bond within these pores at certain temperatures and pressures. This molecular bonding process is exothermic during CO2 adsorption and endothermic during CO2 desorption. Thus, the zeolite material on the CDRA must be heated and cooled to very specific temperatures for the most efficient desorption and adsorption of CO2, respectively. The current CDRA operates most effectively when the sorbent bed is cooled to 20deg;C for adsorption and heated to 220deg;C for desorption. The zeolite material has poor heat transfer characteristics, making a well-designed thermal management system a priority on the CDRA. Advanced Cooling Technologies (ACT) has developed an additively manufactured (AM), titanium-water, vapor chamber to heat and cool the zeolite material in the CDRA. ACTrsquo;s proposed thermal management system is designed to heat and cool the zeolite to these specific temperatures at faster rates and more uniformly than the state-of-the-art design, which utilizes a cartridge heater and aluminum fin. ACTrsquo;s titanium water vapor chamber design has additional benefits over the state-of-the-art such as reduced size, weight, and power (SWaP) and adaptability to future sorbent materials.

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

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