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Liquid hydrogen tests of a sub-scale launcher upper stage feed line evaporation cooler

Isselhorst, Armin and Suslov, Dmitry and Riccius, Jörg (2019) Liquid hydrogen tests of a sub-scale launcher upper stage feed line evaporation cooler. Acta Astronautica, 158, pp. 231-243. Elsevier. doi: 10.1016/j.actaastro.2018.08.016. ISSN 0094-5765.

Full text not available from this repository.

Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0094576518302935?via%3Dihub


Propellant conditioning is a challenge for the development of cryogenic upper stages with re-ignitable main-engines. The VINCI engine needs for its operation propellant under specific conditions w.r.t. pressure and temperature to avoid cavitation inside the propellant pumps. After long ballistic phases the temperature of the propellant can increase to the respective saturation temperature of the tank pressure due to radiative solar heating. By means of the proposed feed line evaporation cooler 1stly the usual release of the tank pressure for thermally conditioning the propellant and 2ndly the follow-on re-pressurization of the tank with Helium can be avoided. Furthermore, this feedline evaporation cooler allows cooling only the propellant amount that is actually consumed by the engine. In this paper the design of the EC test unit, the LH2 test bench and respective results of the tests performed with LH2 will be presented in order to demonstrate the technology's capability and readiness. Additionally, a possible design and assembly on the A6 upper stage propulsion module is suggested.

Item URL in elib:https://elib.dlr.de/131443/
Document Type:Article
Title:Liquid hydrogen tests of a sub-scale launcher upper stage feed line evaporation cooler
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Isselhorst, ArminAriane Group GmbH, Bremen, GermanyUNSPECIFIEDUNSPECIFIED
Suslov, DmitryUNSPECIFIEDhttps://orcid.org/0000-0002-5160-9292UNSPECIFIED
Riccius, JörgUNSPECIFIEDhttps://orcid.org/0000-0002-5935-874XUNSPECIFIED
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 231-243
Keywords:Heat exchanger; LH2; Cryocooler; Space propulsion
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Antriebsystemtechnik - Schubkammertechnologie (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:28 Nov 2019 09:18
Last Modified:08 Jan 2020 15:19

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