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Heat Balance of a Transpiration-Cooled Ceramic Combustion Chamber

Böhrk, Hannah and Herbertz, Armin and Ortelt, Markus (2010) Heat Balance of a Transpiration-Cooled Ceramic Combustion Chamber. Space Propulsion 2010, 03.-06.05.2010, San Sebastian.

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Abstract

HEATS is a lay-out tool for the determination of transient wall heat flux to a transpiration-cooled wall under laminar or turbulent flow conditions. The method is based on heat balances between a flow and a wall material, taking into account aerodynamic heating by the surrounding hot gas, heat conduction within the wall and interior forced convection between transpired coolant and wall. HEATS, in this case, is applied to the transpiration cooling of a ceramic combustion chamber (KSK: Keramische Schubkammer) of the German national research network Propulsion 2010. The LH2 LOX combustion in the chamber reaches temperatures on the order of 3400 K at a pressure of 90 bar. The cooling is performed by supercritical hydrogen at 60 K which is fed through the porous and permeable 10-mm-chamber wall structure made from a carbon fiber/carbon matrix composite. HEATS computation results are compared with experiment results and show good agreement with adeviation of approximately 50K.

Item URL in elib:https://elib.dlr.de/64143/
Document Type:Conference or Workshop Item (Paper, Poster)
Title:Heat Balance of a Transpiration-Cooled Ceramic Combustion Chamber
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Böhrk, HannahHannah.Boehrk (at) dlr.deUNSPECIFIED
Herbertz, ArminArmin.Herbertz (at) dlr.deUNSPECIFIED
Ortelt, MarkusMarkus.Ortelt (at) dlr.deUNSPECIFIED
Date:May 2010
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:space propulsion, ceramic combustion chamber, transpiration-cooling
Event Title:Space Propulsion 2010
Event Location:San Sebastian
Event Type:international Conference
Event Dates:03.-06.05.2010
Organizer:ESA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Antriebsystemtechnik - Faserkeramische Brennkammer (old)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Space Structural Components
Deposited By: Blum, Lucia
Deposited On:22 Sep 2010 14:37
Last Modified:22 Sep 2010 14:37

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