What question did this study set out to answer?

The aim is to assess the performance and advancements of the Four Bed Carbon Dioxide Scrubber aboard the ISS.

May 9, 2026

Status of the Four Bed Carbon Dioxide Scrubber ISS Technology Demonstration 2023-2024

Key Points

The aim is to assess the performance and advancements of the Four Bed Carbon Dioxide Scrubber aboard the ISS.
Active monitoring of FBCO2 system since October 2021 as a primary CO2 removal system.
Evaluation of blower performance and system modifications during the past year.
Assessment of reliability and software updates.
Successfully removing metabolic CO2 from the ISS cabin, supplementing or replacing heritage systems.
Details on the improvements in blower performance and adjustments for closed-loop operation.
Summary of ongoing reliability enhancements and software changes.

Abstract

The Four Bed Carbon Dioxide Scrubber (FBCO2) flight demonstration is presently operating as a primary CO2 removal system onboard the International Space Station (ISS). After activation in October 2021, FBCO2 has been removing metabolic CO2 from the ISS cabin where it is supplementing or fully replacing the heritage systems. This paper describes the past year's accomplishments and forward outlook. The performance of the new blower, efforts toward closed-loop operation, and further on-orbit modifications will also be detailed. System reliability, software changes, and ongoing efforts will be summarized.

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Cite This Study

Winslette et al. (Sun,) studied this question.

synapsesocial.com/papers/69fece1db9154b0b82875db9 https://doi.org/https://doi.org/10.32865/2346/98758

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