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Swiss Propulsion Laboratory At a glance
1SPL-Intro© SPL, 28.2.2007 Switzerland and its Space Industry Switzerland is a founding member of ESA (ca. 130 Mio. /y) Universities: Rosetta space probe, biol. experiments for ISS etc. Lots of high tech companies, only few into space technologies, none in propulsion Two Examples:
2SPL-Intro© SPL, 28.2.2007 Founding of SPL Founded by 3 engineers (today: 7 members and additional helpers) in autumn 98 as a non-profit research organization. Financed by priv. funds and sponsoring (ARO- TECHNOLOGIES) Aims: –Development of launch sytems for small payloads (X-Bow launcher family) –Close cooperation with universities, companies and other research groups –Main focus: Design, build and test propulsion related components and equipment like injectors, comb. chambers, (cryogenic) valves, igniters, pressurization systems, complete thrust test stands etc.
3SPL-Intro© SPL, 28.2.2007 Projects Solid Propulsion Misc./Infrastructure X-Bow Launcher Family Australian AUSROC 2.5 Pre-SPL Projects
4SPL-Intro© SPL, 28.2.2007 ARO TECHNOLOGIES Pre-SPL History In the years 1994 to 1997 ARO TECHNOLOGIES developed various components for the project Stingray. Click on picture to start movie
5SPL-Intro© SPL, 28.2.2007 Projects Solid Propulsion Misc./Infrastructure X-Bow Launcher Family Australian AUSROC 2.5 Pre-SPL Projects
6SPL-Intro© SPL, 28.2.2007 X-Bow I
7SPL-Intro© SPL, 28.2.2007 X-Bow I Tridyne Tridyne gas is catalyticaly burned in a catalyst. It consists of a low percentage of Hydrogen/Oxygen mixed in a inert gas like Helium or Nitrogen. A typical SPL Tridyne test device:
8SPL-Intro© SPL, 28.2.2007 X-Bow I Tridyne
9SPL-Intro© SPL, 28.2.2007 X-Bow I Engine 10 kN thrust, combustion pressure 2.5 MPa Propellant: LOX and Kerosene or Ethyl Alcohol, m~ 4 kg/s Electrical torch igniter makes the engine restartable
10SPL-Intro© SPL, 28.2.2007 X-Bow I Engine Current work: 10 kN modular test injector with 19 removable elements. Prepared for film-cooling
11SPL-Intro© SPL, 28.2.2007 X-Bow I Engine Triplet injectors (2 fuel, 1 LOX), film cooling Cold spray tests in a high pressure environment up to 6 MPa done by students at FHBB(droplets size and velocity measured by a LDA)
12SPL-Intro© SPL, 28.2.2007 X-Bow I Engine Ablatively or regeneratively cooled combustion chamber Regenerative cooled variant: Copper liner with machined cooling channels and an outer shell of electro plated nickel. Low cost variant: Aluminum-Liner and saddle design
13SPL-Intro© SPL, 28.2.2007 X-Bow I Engine Successful test of a 2.5 kN subscale low-cost combustion chamber made of aluminum. Click on picture to start movie
14SPL-Intro© SPL, 28.2.2007 X-Bow I Engine Successful test of a 2.5 kN subscale low-cost combustion chamber made of aluminum. At full throttle… Click on picture to start movie
15SPL-Intro© SPL, 28.2.2007 Projects Solid Propulsion Misc./Infrastructure X-Bow Launcher Family Australian AUSROC 2.5 Pre-SPL Projects
16SPL-Intro© SPL, 28.2.2007 AUSROC 2.5 LOX/Kerosene, 3o kN thrust, 6m tall. SPL supports the project with pressurization equipments and other devices. Altitude: ~40 km. Movie AUSROC 2AUSROC 2
17SPL-Intro© SPL, 28.2.2007 AUSROC 2.5 Staging mechanism: Designed and build by FHNW students. More infos about AUSROC: www.asri.org.au
18SPL-Intro© SPL, 28.2.2007 Projects Solid-Propulsion Misc./Infrastructure X-Bow Launcher Family Australian AUSROC 2.5 Pre-SPL Projects
19SPL-Intro© SPL, 28.2.2007 Solid Propulsion Goal: Elaborate the knowledge to design, build and fire solid rocket motors (AP-HTPB-Al Composite) Testing of highly efficient burning rate catalysts like CATOCENE => burning rates up to 25 mm/s @ 7 MPa Various test motors up to an impulse of 20 kNs and thrust of 12 kN
20SPL-Intro© SPL, 28.2.2007 Solid propulsion TETHIS Motor Impulse 20 kNs, thrust 8 kN, 4 stacked grains (81% solids) Ignited by a pyrogen Magnesium/Teflon igniter Series of Tethis motors successful tested in April 2002 Click on picture to start movie
21SPL-Intro© SPL, 28.2.2007 Solid Propulsion Igniters Pyrogen igniters are small rocket motors initiated by smaller pyrotechnic charges (Squibs)
22SPL-Intro© SPL, 28.2.2007 Solid Propulsion Igniters
23SPL-Intro© SPL, 28.2.2007 Solid Propulsion Magnesium/Teflon igniter
24SPL-Intro© SPL, 28.2.2007 Projects Solid Propulsion Misc./Infrastructure X-Bow Launcher Family Australian AUSROC 2.5 Pre-SPL Projects
25SPL-Intro© SPL, 28.2.2007 Miscellaneous Projects Test bench for Turbo pumps Turbines and pumps up to 200 kW and 60000 rpm can be tested here Click on picture to start movie
26SPL-Intro© SPL, 28.2.2007 Infrastructure All kinds of conventional and NC machine tools, EDM, ECM CAD/FEM/CAM/CFD tools available DAQ equipment:64 channels, 100 kSp/s 4 channels, 500 MSp/s Hydro test equipment 100 MPa Vacuum chamber, 24 m 3, 1000 Pa Pressure converter, allows to compress any kind gas mixtures to pressures up to 100 MPa (for example the Tridyne gas mix) Indoor test stand for small thrusters, igniters, gas generators 100 kN thrust test stand Sound suppressing System for engines up to 100 kN And much more...
27SPL-Intro© SPL, 28.2.2007 Infrastructure Thrust Test Stand For solids and liquids exchangeable load cells 25 and 100 kN Measuring table mounted on hysteresis-free flex joints integrated safety stops
28SPL-Intro© SPL, 28.2.2007 Infrastructure Thrust Test Stand Sound suppressing system (12m long stainless tube, with baffles, embedded in 20 t sand) High power fan Ex-proof test cell
29SPL-Intro© SPL, 28.2.2007 Infrastructure Thrust Test Stand Test cell Start MTW-Movie to get an impression of the infrastructure
30SPL-Intro© SPL, 28.2.2007 Infrastructure Other examples 5 axis CNC milling machines, CNC lathe Access to underground detonic laboratory with high-speed X- Ray recording
31SPL-Intro© SPL, 28.2.2007 The Near Future at SPL Further development of regenerative cooled engines up to 100 kN Participation in the ENTERPRISE project –Development of the engines –Propellant feeding system, pressurization etc. Launch of AUSROC 2.5 equipped with SPL Tridyne system Development of the X-Bow I airframe Various projects with commercial and governmental partners
32SPL-Intro© SPL, 28.2.2007 Contact and further infos: WWW.SPL.CH Questions ?
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