NASA Research Announcement: Urine and Air Separation - Two Phase Fluid Separator... Tender

Procurement Summary

Country : USA

Summary : NASA Research Announcement: Urine and Air Separation - Two Phase Fluid Separator Technology

Deadline : 18 Apr 2025

Other Information

Notice Type : Tender

TOT Ref.No.: 117456339

Document Ref. No. : 80JSC025SEPARATOR

Financier : Self Financed

Purchaser Ownership : Public

Tender Value : Refer Document

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Tender Details

Description

Focus Area 5: Urine and Air Separation - Two Phase Fluid Separator Technology

Scope and Objectives

NASA is seeking proposals under this focus area to advance the state-of-the-art (SOTA) of urine/air separator technology with the ability to integrate the technology demonstration into a contingency toilet should an unrecoverable failure occur. The contingency toilet architecture will use a urine collection interface with airflow for waste separation from the body, odor control, and a gas-liquid separator to allow the collected urine to be processed with the on-board urine processor. The entire system will be efficiently packaged to minimize the onboard volume but allow for maintenance by crew on ISS.

To sufficiently advance the SOTA, a proposed separator must be able to reliably and robustly provide sufficient separation over a variable flow rate and duration of urine. If needed, airflow may be provided by an external blower or fan. It must be efficient, minimize system power and cooling requirements, and be small enough in size to fit within the spacecraft. It must be robust and have a long life to minimize the crew system maintenance and the spares mass needed for a human space exploration mission.

Additionally, an advancement on the SOTA would meet or exceed the following:

Fluid interfaces: The Separator should provide degassed urine to a filtered line leading to an external container (ambient) or the ISS urine processing systems (

3 psi back pressure) Pretreat compatibility: The separator should accept air and urine mixed with approximately 3-5 mL of alternate pretreat concentrate (APC) made of 85% aqueous phosphoric acid and 6.2% chromium trioxide by mass as an oxidizer. Reference US Patent No. 9, 878, 928, B1 for more information. Airflow: Urine is collected from a funnel with an airflow of up to 250 (+-50) SLPM. Crew may throttle the airflow rate. An external separate blower may provide airflow. The proposed separator tech...
Active Contract Opportunity
Notice ID : 80JSC025SEPARATOR
Related Notice
Department/Ind. Agency : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Sub-tier : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Office: NASA JOHNSON SPACE CENTER
General Information
Contract Opportunity Type: Special Notice (Original)
Original Published Date: Apr 08, 2025 07:57 am CDT
Original Response Date: Apr 18, 2025 11:59 pm CDT
Inactive Policy: Manual
Original Inactive Date: Apr 07, 2026
Initiative: None

Classification
Original Set Aside:
Product Service Code: AR15 - SPACE R&D SVCS; SPACE FLIGHT, RESEARCH & SUPPORTING ACTIVITIES; R&D FACILITIES & MAJ EQUIP
NAICS Code: 541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)

Place of Performance:

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