Upgrades to the ISS Water Recovery System
The International Space Station Water Recovery System (WRS) is comprised of the Water Processor Assembly (WPA) and the Urine Processor Assembly (UPA). The WRS produces potable water from a combination of crew urine (first processed through the UPA), crew latent, and Sabatier product water. Though the WRS has performed well since operations began in November 2008, several modifications have been identified to improve the overall system performance. These modifications can reduce resupply and improve overall system reliability, which is beneficial for the ongoing ISS mission as well as for future NASA manned missions. The following paper details efforts to reduce the resupply mass of the WPA Multifiltration Bed, develop improved catalyst for the WPA Catalytic Reactor, evaluate optimum operation of UPA through parametric testing, and improve reliability of the UPA fluids pump and Distillation Assembly.
ICES404: International Space Station ECLS: Systems
Matthew J. Kayatin, NASA George C. Marshall Space Flight Center, USA
Donald L. Carter, NASA George C. Marshall Space Flight Center, USA
Richard G. Schunk, NASA George C. Marshall Space Flight Center, USA
The 46th International Conference on Environmental Systems was held in Vienna, Austria, USA on 10 July 2016 through 14 July 2016.
Jennifer M. Pruitt, NASA George C. Marshall Space Flight Center, USA