Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station

The International Space Station program is developing a robotically-operated leak locator tool to be used externally. The tool would consist of a Residual Gas Analyzer for partial pressure measurements and a full range pressure gauge for total pressure measurements. The primary application is to det...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Woronowicz, Michael, Abel, Joshua, Autrey, David, Blackmon, Rebecca, Bond, Tim, Brown, Martin, Buffington, Jesse, Cheng, Edward, DeLatte, Danielle, Garcia, Kelvin, Glenn, Jodie, Hawk, Doug, Ma, Jonathan, Mohammed, Jelila, Montt de Garcia, Kristina, Perry, Radford, Rossetti, Dino, Tull, Kimathi, Warren, Eric
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator Woronowicz, Michael
Abel, Joshua
Autrey, David
Blackmon, Rebecca
Bond, Tim
Brown, Martin
Buffington, Jesse
Cheng, Edward
DeLatte, Danielle
Garcia, Kelvin
Glenn, Jodie
Hawk, Doug
Ma, Jonathan
Mohammed, Jelila
Montt de Garcia, Kristina
Perry, Radford
Rossetti, Dino
Tull, Kimathi
Warren, Eric
description The International Space Station program is developing a robotically-operated leak locator tool to be used externally. The tool would consist of a Residual Gas Analyzer for partial pressure measurements and a full range pressure gauge for total pressure measurements. The primary application is to detect NH3 coolant leaks in the ISS thermal control system. An analytical model of leak plume physics is presented that can account for effusive flow as well as plumes produced by sonic orifices and thruster operations. This model is used along with knowledge of typical RGA and full range gauge performance to analyze the expected instrument sensitivity to ISS leaks of various sizes and relative locations ("directionality"). The paper also presents experimental results of leak simulation testing in a large thermal vacuum chamber at NASA Goddard Space Flight Center. This test characterized instrument sensitivity as a function of leak rates ranging from 1 lb-mass/yr. to about 1 lb-mass/day. This data may represent the first measurements collected by an RGA or ion gauge system monitoring off-axis point sources as a function of location and orientation. Test results are compared to the analytical model and used to propose strategies for on-orbit leak location and environment characterization using the proposed instrument while taking into account local ISS conditions and the effects of ram/wake flows and structural shadowing within low Earth orbit.
format Conference Proceeding
fullrecord <record><control><sourceid>nasa_CYI</sourceid><recordid>TN_cdi_nasa_ntrs_20140017801</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>20140017801</sourcerecordid><originalsourceid>FETCH-nasa_ntrs_201400178013</originalsourceid><addsrcrecordid>eNqFjDEKwkAQRdNYiHoDi7mAsFHBtBIiCum0D8NmQhbX2bA7ivH0bhJ7q8-8ef_Pk_7IaHsxGi0g11C8O_LmQSwRXOVZGwrgGigJ71A6jWIcTya_jHc8qJC36FFLbH4moXEepCW4cIQ8smGvQ01xdbyXyaxBG2j1y0WyPhW3_LxhDFix-FBtVbpXKj1kKt39eX8BIdJCjg</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station</title><source>NASA Technical Reports Server</source><creator>Woronowicz, Michael ; Abel, Joshua ; Autrey, David ; Blackmon, Rebecca ; Bond, Tim ; Brown, Martin ; Buffington, Jesse ; Cheng, Edward ; DeLatte, Danielle ; Garcia, Kelvin ; Glenn, Jodie ; Hawk, Doug ; Ma, Jonathan ; Mohammed, Jelila ; Montt de Garcia, Kristina ; Perry, Radford ; Rossetti, Dino ; Tull, Kimathi ; Warren, Eric</creator><creatorcontrib>Woronowicz, Michael ; Abel, Joshua ; Autrey, David ; Blackmon, Rebecca ; Bond, Tim ; Brown, Martin ; Buffington, Jesse ; Cheng, Edward ; DeLatte, Danielle ; Garcia, Kelvin ; Glenn, Jodie ; Hawk, Doug ; Ma, Jonathan ; Mohammed, Jelila ; Montt de Garcia, Kristina ; Perry, Radford ; Rossetti, Dino ; Tull, Kimathi ; Warren, Eric</creatorcontrib><description>The International Space Station program is developing a robotically-operated leak locator tool to be used externally. The tool would consist of a Residual Gas Analyzer for partial pressure measurements and a full range pressure gauge for total pressure measurements. The primary application is to detect NH3 coolant leaks in the ISS thermal control system. An analytical model of leak plume physics is presented that can account for effusive flow as well as plumes produced by sonic orifices and thruster operations. This model is used along with knowledge of typical RGA and full range gauge performance to analyze the expected instrument sensitivity to ISS leaks of various sizes and relative locations ("directionality"). The paper also presents experimental results of leak simulation testing in a large thermal vacuum chamber at NASA Goddard Space Flight Center. This test characterized instrument sensitivity as a function of leak rates ranging from 1 lb-mass/yr. to about 1 lb-mass/day. This data may represent the first measurements collected by an RGA or ion gauge system monitoring off-axis point sources as a function of location and orientation. Test results are compared to the analytical model and used to propose strategies for on-orbit leak location and environment characterization using the proposed instrument while taking into account local ISS conditions and the effects of ram/wake flows and structural shadowing within low Earth orbit.</description><language>eng</language><publisher>Goddard Space Flight Center</publisher><subject>Cybernetics, Artificial Intelligence And Robotics ; Spacecraft Design, Testing And Performance ; Spacecraft Instrumentation And Astrionics</subject><creationdate>2014</creationdate><rights>Copyright Determination: PUBLIC_USE_PERMITTED</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>309,780,800</link.rule.ids><linktorsrc>$$Uhttps://ntrs.nasa.gov/citations/20140017801$$EView_record_in_NASA$$FView_record_in_$$GNASA$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Woronowicz, Michael</creatorcontrib><creatorcontrib>Abel, Joshua</creatorcontrib><creatorcontrib>Autrey, David</creatorcontrib><creatorcontrib>Blackmon, Rebecca</creatorcontrib><creatorcontrib>Bond, Tim</creatorcontrib><creatorcontrib>Brown, Martin</creatorcontrib><creatorcontrib>Buffington, Jesse</creatorcontrib><creatorcontrib>Cheng, Edward</creatorcontrib><creatorcontrib>DeLatte, Danielle</creatorcontrib><creatorcontrib>Garcia, Kelvin</creatorcontrib><creatorcontrib>Glenn, Jodie</creatorcontrib><creatorcontrib>Hawk, Doug</creatorcontrib><creatorcontrib>Ma, Jonathan</creatorcontrib><creatorcontrib>Mohammed, Jelila</creatorcontrib><creatorcontrib>Montt de Garcia, Kristina</creatorcontrib><creatorcontrib>Perry, Radford</creatorcontrib><creatorcontrib>Rossetti, Dino</creatorcontrib><creatorcontrib>Tull, Kimathi</creatorcontrib><creatorcontrib>Warren, Eric</creatorcontrib><title>Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station</title><description>The International Space Station program is developing a robotically-operated leak locator tool to be used externally. The tool would consist of a Residual Gas Analyzer for partial pressure measurements and a full range pressure gauge for total pressure measurements. The primary application is to detect NH3 coolant leaks in the ISS thermal control system. An analytical model of leak plume physics is presented that can account for effusive flow as well as plumes produced by sonic orifices and thruster operations. This model is used along with knowledge of typical RGA and full range gauge performance to analyze the expected instrument sensitivity to ISS leaks of various sizes and relative locations ("directionality"). The paper also presents experimental results of leak simulation testing in a large thermal vacuum chamber at NASA Goddard Space Flight Center. This test characterized instrument sensitivity as a function of leak rates ranging from 1 lb-mass/yr. to about 1 lb-mass/day. This data may represent the first measurements collected by an RGA or ion gauge system monitoring off-axis point sources as a function of location and orientation. Test results are compared to the analytical model and used to propose strategies for on-orbit leak location and environment characterization using the proposed instrument while taking into account local ISS conditions and the effects of ram/wake flows and structural shadowing within low Earth orbit.</description><subject>Cybernetics, Artificial Intelligence And Robotics</subject><subject>Spacecraft Design, Testing And Performance</subject><subject>Spacecraft Instrumentation And Astrionics</subject><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2014</creationdate><recordtype>conference_proceeding</recordtype><sourceid>CYI</sourceid><recordid>eNqFjDEKwkAQRdNYiHoDi7mAsFHBtBIiCum0D8NmQhbX2bA7ivH0bhJ7q8-8ef_Pk_7IaHsxGi0g11C8O_LmQSwRXOVZGwrgGigJ71A6jWIcTya_jHc8qJC36FFLbH4moXEepCW4cIQ8smGvQ01xdbyXyaxBG2j1y0WyPhW3_LxhDFix-FBtVbpXKj1kKt39eX8BIdJCjg</recordid><startdate>20140713</startdate><enddate>20140713</enddate><creator>Woronowicz, Michael</creator><creator>Abel, Joshua</creator><creator>Autrey, David</creator><creator>Blackmon, Rebecca</creator><creator>Bond, Tim</creator><creator>Brown, Martin</creator><creator>Buffington, Jesse</creator><creator>Cheng, Edward</creator><creator>DeLatte, Danielle</creator><creator>Garcia, Kelvin</creator><creator>Glenn, Jodie</creator><creator>Hawk, Doug</creator><creator>Ma, Jonathan</creator><creator>Mohammed, Jelila</creator><creator>Montt de Garcia, Kristina</creator><creator>Perry, Radford</creator><creator>Rossetti, Dino</creator><creator>Tull, Kimathi</creator><creator>Warren, Eric</creator><scope>CYE</scope><scope>CYI</scope></search><sort><creationdate>20140713</creationdate><title>Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station</title><author>Woronowicz, Michael ; Abel, Joshua ; Autrey, David ; Blackmon, Rebecca ; Bond, Tim ; Brown, Martin ; Buffington, Jesse ; Cheng, Edward ; DeLatte, Danielle ; Garcia, Kelvin ; Glenn, Jodie ; Hawk, Doug ; Ma, Jonathan ; Mohammed, Jelila ; Montt de Garcia, Kristina ; Perry, Radford ; Rossetti, Dino ; Tull, Kimathi ; Warren, Eric</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nasa_ntrs_201400178013</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Cybernetics, Artificial Intelligence And Robotics</topic><topic>Spacecraft Design, Testing And Performance</topic><topic>Spacecraft Instrumentation And Astrionics</topic><toplevel>online_resources</toplevel><creatorcontrib>Woronowicz, Michael</creatorcontrib><creatorcontrib>Abel, Joshua</creatorcontrib><creatorcontrib>Autrey, David</creatorcontrib><creatorcontrib>Blackmon, Rebecca</creatorcontrib><creatorcontrib>Bond, Tim</creatorcontrib><creatorcontrib>Brown, Martin</creatorcontrib><creatorcontrib>Buffington, Jesse</creatorcontrib><creatorcontrib>Cheng, Edward</creatorcontrib><creatorcontrib>DeLatte, Danielle</creatorcontrib><creatorcontrib>Garcia, Kelvin</creatorcontrib><creatorcontrib>Glenn, Jodie</creatorcontrib><creatorcontrib>Hawk, Doug</creatorcontrib><creatorcontrib>Ma, Jonathan</creatorcontrib><creatorcontrib>Mohammed, Jelila</creatorcontrib><creatorcontrib>Montt de Garcia, Kristina</creatorcontrib><creatorcontrib>Perry, Radford</creatorcontrib><creatorcontrib>Rossetti, Dino</creatorcontrib><creatorcontrib>Tull, Kimathi</creatorcontrib><creatorcontrib>Warren, Eric</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Woronowicz, Michael</au><au>Abel, Joshua</au><au>Autrey, David</au><au>Blackmon, Rebecca</au><au>Bond, Tim</au><au>Brown, Martin</au><au>Buffington, Jesse</au><au>Cheng, Edward</au><au>DeLatte, Danielle</au><au>Garcia, Kelvin</au><au>Glenn, Jodie</au><au>Hawk, Doug</au><au>Ma, Jonathan</au><au>Mohammed, Jelila</au><au>Montt de Garcia, Kristina</au><au>Perry, Radford</au><au>Rossetti, Dino</au><au>Tull, Kimathi</au><au>Warren, Eric</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station</atitle><date>2014-07-13</date><risdate>2014</risdate><abstract>The International Space Station program is developing a robotically-operated leak locator tool to be used externally. The tool would consist of a Residual Gas Analyzer for partial pressure measurements and a full range pressure gauge for total pressure measurements. The primary application is to detect NH3 coolant leaks in the ISS thermal control system. An analytical model of leak plume physics is presented that can account for effusive flow as well as plumes produced by sonic orifices and thruster operations. This model is used along with knowledge of typical RGA and full range gauge performance to analyze the expected instrument sensitivity to ISS leaks of various sizes and relative locations ("directionality"). The paper also presents experimental results of leak simulation testing in a large thermal vacuum chamber at NASA Goddard Space Flight Center. This test characterized instrument sensitivity as a function of leak rates ranging from 1 lb-mass/yr. to about 1 lb-mass/day. This data may represent the first measurements collected by an RGA or ion gauge system monitoring off-axis point sources as a function of location and orientation. Test results are compared to the analytical model and used to propose strategies for on-orbit leak location and environment characterization using the proposed instrument while taking into account local ISS conditions and the effects of ram/wake flows and structural shadowing within low Earth orbit.</abstract><cop>Goddard Space Flight Center</cop><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_nasa_ntrs_20140017801
source NASA Technical Reports Server
subjects Cybernetics, Artificial Intelligence And Robotics
Spacecraft Design, Testing And Performance
Spacecraft Instrumentation And Astrionics
title Analytical and Experimental Studies of Leak Location and Environment Characterization for the International Space Station
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T13%3A12%3A12IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-nasa_CYI&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=proceeding&rft.atitle=Analytical%20and%20Experimental%20Studies%20of%20Leak%20Location%20and%20Environment%20Characterization%20for%20the%20International%20Space%20Station&rft.au=Woronowicz,%20Michael&rft.date=2014-07-13&rft_id=info:doi/&rft_dat=%3Cnasa_CYI%3E20140017801%3C/nasa_CYI%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true