Updated Effluent Analysis of the Heat Melt Compactor: Water Quality and Dewpoint Simulation of Gas Effluent

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dc.creatorYoung, Janine
dc.creatorParodi, Jurek
dc.creatorTrieu, Serena
dc.creatorRichardson, Tra-My Justine
dc.creatorSepka, Steven
dc.creatorLee, Jeffrey
dc.creatorMartin, Kevin
dc.creatorPace, Gregory
dc.creatorNadeau, Mary Lou
dc.date.accessioned2021-06-24T20:03:36Z
dc.date.available2021-06-24T20:03:36Z
dc.date.issued7/12/2021
dc.descriptionJanine Young, NASA
dc.descriptionJurek Parodi, NASA
dc.descriptionSerena Trieu, NASA
dc.descriptionTra-My Justine Richardson, NASA
dc.descriptionSteven Sepka, NASA
dc.descriptionJeffrey Lee, NASA
dc.descriptionKevin Martin, NASA
dc.descriptionGregory Pace, NASA
dc.descriptionMary Lou Nadeau, NASA
dc.descriptionICES304: Physio-Chemical Life Support- Waste Management Systems- Technology and Process Developmenten
dc.descriptionThe 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.en_US
dc.description.abstractThe Trash Compaction and Processing System (TCPS) processes astronaut trash through volume reduction, biological safening, trash stabilization, effluent management, and resource recovery. TCPS development for the International Space Station (ISS) and risk reduction activities are supported by testing the Heat Melt Compactor (HMC) at NASA Ames Research Center (ARC). Processing trash extracts water vapor that can be recovered and releases volatile gases that must be managed. Part of the effluent is condensed and collected for analysis. The evaluation of the liquid effluent includes total organic carbon (TOC) concentrations, which provide a general indication of overall water quality, other defining characteristics such as pH and conductivity, and identified chemical components. On the other hand, the gas effluent may be recovered through a contaminant control system and vented to ISS cabin or vented overboard into space through the ISS Vacuum Exhaust System (VES). In the latter venting scenario, a constraint is the dewpoint of the gases disposed into the VES must be less than 15.5 oC. With simulations using Aspen Plus� and the HMC gas effluent results, flash calculations were conducted in the modeling study to calculate feed temperature and dewpoint at fixed pressures. Saturated vapor curves were also produced and provide a preliminary result on optimal feed conditions that satisfy the dewpoint and vapor-phase only requirements upon venting to VES. This paper serves as an update on the ongoing liquid and gas effluent analysis of the HMC/TCPS.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2021-311
dc.identifier.urihttps://hdl.handle.net/2346/87250
dc.language.isoengen_US
dc.publisher50th International Conference on Environmental Systemsen_US
dc.subjecttrash
dc.subjectTrash Compaction and Processing System
dc.subjectTCPS
dc.subjectwaste
dc.subjectsolid waste
dc.subjectHeat Melt Compactor
dc.subjectHMC
dc.subjectdewpoint
dc.subjectwater
dc.subjectgas effluent
dc.subjectliquid effluent
dc.titleUpdated Effluent Analysis of the Heat Melt Compactor: Water Quality and Dewpoint Simulation of Gas Effluenten_US
dc.typePresentationen_US

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