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LUMEN Turbopump - Design and Manufacturing of the LUMEN LOX and LNG Turbopump components

Traudt, Tobias and Dos Santos Hahn, Robson Henrique and Mason, Thomas and Mader, Christian and Deeken, Jan C. and Oschwald, Michael and Schlechtriem, S. (2019) LUMEN Turbopump - Design and Manufacturing of the LUMEN LOX and LNG Turbopump components. In: 32nd International Symposium on Space Technology and Science. 32nd International Symposium on Space Technology and Science, 15. - 21. Jun. 2019, Fukui, Japan.

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Official URL: https://archive.ists.or.jp/upload_pdf/2019-e-40.pdf

Abstract

In the LUMEN project (liquid upper stage demonstrator engine) an expander bleed engine will be built at the DLR to allow component research on engine level. The LUMEN engine will feature two dedicated turbopumps, one for LOX and one for LNG. The turbopumps design is modular to develop sophisticated turbopump components in a representative engine cycle. In this work we will give an overview over the status of the development. The turbopumps critical design has been finished and is ready for manufacture. To finalize the pump design, CFD simulations of the LNG pump impeller have been improved from previous work by incorporating losses due to the pump sealings and the flow between rotor and housing.1) The rotor dynamics analysis for the LOX and the LNG turbopump will be discussed. The design considerations will be presented which ensure operation below the first critical speed for both turbopumps. Finally, we will give an update on the status of the Cryogenic Sealing and Bearing Test Bench (CSBT) and the modular turbopump test bench (MTB), which are in construction for the validation of the turbopump design.

Item URL in elib:https://elib.dlr.de/132816/
Document Type:Conference or Workshop Item (Speech)
Title:LUMEN Turbopump - Design and Manufacturing of the LUMEN LOX and LNG Turbopump components
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Traudt, TobiasTobias.Traudt (at) dlr.dehttps://orcid.org/0000-0002-0206-0483
Dos Santos Hahn, Robson HenriqueRobson.DosSantosHahn (at) dlr.dehttps://orcid.org/0000-0002-2389-2043
Mason, ThomasGerman Aerospace Center DLR, Lampoldshausen, DUNSPECIFIED
Mader, ChristianChristian.Mader (at) dlr.deUNSPECIFIED
Deeken, Jan C.Jan.Deeken (at) dlr.dehttps://orcid.org/0000-0002-5714-8845
Oschwald, MichaelMichael.Oschwald (at) dlr.dehttps://orcid.org/0000-0002-9579-9825
Schlechtriem, S.Stefan.Schlechtriem (at) dlr.dehttps://orcid.org/0000-0002-3714-9664
Date:2019
Journal or Publication Title:32nd International Symposium on Space Technology and Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:LUMEN, engine demonstrator, LOX/LNG, turbopump, rotordynamics
Event Title:32nd International Symposium on Space Technology and Science
Event Location:Fukui, Japan
Event Type:international Conference
Event Dates:15. - 21. Jun. 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):Proj LUMEN (Liquid Upper Stage Demonstrator Engine)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion > Rocket Propulsion
Deposited By: Hanke, Michaela
Deposited On:16 Dec 2019 08:51
Last Modified:16 Dec 2019 08:51

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