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Analyses of Cryogenic Propellant Tank Pressurization based upon Ground Experiments

Ludwig, Carina und Dreyer, Michael (2012) Analyses of Cryogenic Propellant Tank Pressurization based upon Ground Experiments. American Institute of Aeronautics and Astronautics. AIAA SPACE 2012 Conference & Exposition, 2012-09-11 - 2012-09-13, Pasadena, California, USA. doi: 10.2514/6.2012-5199. ISBN 978-1-60086-940-2.

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Offizielle URL: http://arc.aiaa.org/doi/abs/10.2514/6.2012-5199

Kurzfassung

The pressurization system of cryogenic propellant rockets requires on-board pressurant gas. The objective of this study was to analyze the influence of the pressurant gas temperature on the required pressurant gas mass in terms of lowering the launcher mass. First, ground experiments were performed in order to investigate the pressurization process with regard to the influence of the pressurant gas inlet temperature. Second, a system study for the cryogenic upper stage of a small Two Stage to Orbit (TSTO) launch vehicle was performed with focus on the influence of the pressurant gas temperature on the propellant management system mass. One important experimental result is that for evaporated propellant as pressurant gas, the maximum applicable gas temperature is best for reducing the needed pressurant gas, but on condition that all pressurization lines are chilled down. Moreover, the use of helium is very advantageous with regard to lowering the pressurant gas mass. Also significant is that an immediate pressure drop occurred after the pressurization end. The conclusion drawn from the system analysis is that an increased evaporated propellant and helium pressurant gas temperature resulted in a decrease of the total propellant management system mass, despite the application of external helium vessels.

elib-URL des Eintrags:https://elib.dlr.de/78204/
Dokumentart:Konferenzbeitrag (Paper, Poster)
Titel:Analyses of Cryogenic Propellant Tank Pressurization based upon Ground Experiments
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Ludwig, Carinacarina.ludwig (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Dreyer, MichaelZARM, University of BremenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:11 September 2012
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
DOI:10.2514/6.2012-5199
Verlag:American Institute of Aeronautics and Astronautics
ISBN:978-1-60086-940-2
Status:veröffentlicht
Stichwörter:Cryogenic, Propellant, tank, Pressurization, TSTO, Two-Stage To Orbit, Fluid Mass,
Veranstaltungstitel:AIAA SPACE 2012 Conference & Exposition
Veranstaltungsort:Pasadena, California, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:11 September 2012
Veranstaltungsende:13 September 2012
Veranstalter :AIAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Raumtransport
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):R - Raumfahrzeugsysteme - Systemanalyse Raumtransport (alt)
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme > Systemanalyse Raumtransport
Hinterlegt von: Vormschlag, Nele Marei
Hinterlegt am:22 Jan 2013 11:44
Letzte Änderung:24 Apr 2024 19:44

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