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LUMEN - Design of the Regenerative Cooling System for an Expander Bleed Cycle Engine Using Methane

Haemisch, Jan and Suslov, Dmitry and Waxenegger-Wilfing, Günther and Dresia, Kai and Oschwald, Michael (2021) LUMEN - Design of the Regenerative Cooling System for an Expander Bleed Cycle Engine Using Methane. 7th International Space Propulsion Conference, 17.-19. März 2021, Virtual Conference.

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The regenerative cooling still is one of the most crucial parts in designing a liquid rocket engine. The goal of an effective design is a trade-off between a sufficient cooling of the structure and a low pressure drop in the cooling channels. For an expander type cycle a third requirement arises: A sufficient enthalpy increase of the cooling fluid for the turbopumps to operate effectively. To prevent the combustion chamber from melting, the regenerative cooling has to be designed with a sufficient margin to respect all uncertainties. A neural network based surrogate model is used to study the robustness of the cooling channel design for other load points of the engine. In this paper, the design of the regenerative cooling system and the manufacturing of a subscale combustion chamber will be discussed.

Item URL in elib:https://elib.dlr.de/141456/
Document Type:Conference or Workshop Item (Speech)
Title:LUMEN - Design of the Regenerative Cooling System for an Expander Bleed Cycle Engine Using Methane
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Haemisch, JanUNSPECIFIEDhttps://orcid.org/0000-0001-9463-1740
Suslov, DmitryUNSPECIFIEDhttps://orcid.org/0000-0002-5160-9292
Waxenegger-Wilfing, GüntherUNSPECIFIEDhttps://orcid.org/0000-0001-5381-6431
Dresia, KaiUNSPECIFIEDhttps://orcid.org/0000-0003-3229-5184
Oschwald, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-9579-9825
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:LUMEN, HARCC, regenerative cooling, machine learning, design optimization
Event Title:7th International Space Propulsion Conference
Event Location:Virtual Conference
Event Type:international Conference
Event Dates:17.-19. März 2021
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 - Project LUMEN (Liquid Upper Stage Demonstrator Engine)
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Haemisch, Jan
Deposited On:23 Mar 2021 08:29
Last Modified:23 Mar 2021 08:29

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