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Investigation of the API-Injection Concept in a LOX/LH2 Combustion Chamber at GG/PB Operation Conditions

Suslov, Dmitry and Deeken, Jan C. and Haidn, O. (2012) Investigation of the API-Injection Concept in a LOX/LH2 Combustion Chamber at GG/PB Operation Conditions. In: Proceedings (AIAA 2012-3857). 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2012-07-30 - 2012-08-01, Atlanta, Georgia, USA.

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A proper design of an injection system for liquid propellant rocket engines (LPRE) has to ensure a homogenous mixture of the injected propellants, which should result in a stable and highly efficient combustion process. In addition to combustion stability and efficiency it determines the propellant pressure losses upstream of the combustion chamber as well as the combustion chamber size required for a complete reaction of the injected propellants. This publication deals with the application of a new injection concept to operating conditions typically found in fuel rich LOX/H2 gas-generator (GG) or preburner (PB) combustion chambers. This injection concept was developed at the German Aerospace Center’s Institute of Space Propulsion and was named “Advanced Porous Injector” (API). Its feasibility has been demonstrated for operating conditions typical for main combustion chamber (MCC) applications during various test campaigns. The injection conditions typical for GG or PB applications impose new challenges on the injection system. The test campaign reported here was performed using the propellant combination LOX/H2 with a hydrogen injection temperature of 50 K and an oxidizer to fuel ratios ranging from 1 to 0.6. The successful operation of an 80 mm diameter combustion chamber equipped with a porous injector head has been demonstrated for chamber pressures up to 330 bar.

Item URL in elib:https://elib.dlr.de/82004/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Investigation of the API-Injection Concept in a LOX/LH2 Combustion Chamber at GG/PB Operation Conditions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Suslov, DmitryUNSPECIFIEDhttps://orcid.org/0000-0002-5160-9292UNSPECIFIED
Deeken, Jan C.UNSPECIFIEDhttps://orcid.org/0000-0002-5714-8845UNSPECIFIED
Journal or Publication Title:Proceedings
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:liquid propellants, rocket engines
Event Title:48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
Event Location:Atlanta, Georgia, USA
Event Type:international Conference
Event Start Date:30 July 2012
Event End Date:1 August 2012
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:22 Apr 2013 10:44
Last Modified:24 Apr 2024 19:48

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