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Experimental Evaluation of a High Test Peroxide Catalyst Chamber for a Hybrid Rocket Engine

Bozic, O. and Lancelle, D. and May, S. and Porrmann, D. (2013) Experimental Evaluation of a High Test Peroxide Catalyst Chamber for a Hybrid Rocket Engine. EUCASS, 1.-5. Juli 2013, München, Deutschland.

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Abstract

Hybrid rocket propulsion technology has recently gained in importance. Within the program “AHRES” at the German Aerospace Center (DLR), a small HRE technology demonstrator was developed, which should deliver data for the validation of a self-developed HRE design software. Instead of a conventional ignition system, for this HRE a catalyst chamber with a silver mesh catalyst is designed to decompose currently up to 0.7 kg/s of 87.5% HTP to steam and oxygen at high temperatures. The chamber consists of the catalyst itself, a mount for the catalyst material, a retainer, an injector manifold, a cooling channel, and a casing. Furthermore, a pressure sensor, a mass flow sensor, and a thermocouple are attached to measure the properties of the decomposition products. The chamber is mounted on a test-bed which comprises attachment, peroxide storage, feed system, valves, data acquisition, and control. By determination of the decomposition temperature, the integrity of decomposition is verified and compared to theoretical prediction. The catalyst chamber is developed based on the results of the design tool SHAKIRA. Several calculations are carried out to determine the appropriate geometry for complete decomposition with a minimum of catalyst material. The experimental results show good agreement to the results generated by the design tool. The developed and tested catalyst chamber provides a simple, reliable ignition system for hybrid rocket engine based on hydrogen peroxide as oxidiser. The system is capable of igniting repeatedly without the need to meet an optimal ignition point. Such a system behaves like a hypergolic engine in terms of ignition, but no hazardous substances are required.

Item URL in elib:https://elib.dlr.de/86410/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental Evaluation of a High Test Peroxide Catalyst Chamber for a Hybrid Rocket Engine
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bozic, O.ognjan.bozic (at) dlr.deUNSPECIFIED
Lancelle, D.daniel.lancelle (at) dlr.deUNSPECIFIED
May, S.stefan_may (at) arcor.deUNSPECIFIED
Porrmann, D.dennis.porrmann (at) dlr.deUNSPECIFIED
Date:3 July 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:High Test Peroxide, Catalyst Chamber, Hybrid Rocket Engine, design, modeling, testing
Event Title:EUCASS
Event Location:München, Deutschland
Event Type:international Conference
Event Dates:1.-5. Juli 2013
Organizer:EUCASS
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):R - Vorhaben AHRES (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Bozic, Dr.-Ing. Ognjan
Deposited On:11 Dec 2013 11:54
Last Modified:08 May 2014 23:19

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