Shock Tubes



Measurement Methods

Available Measurement Methods

Optical measurement methods:

  • IR-emission and absorption spectrometry
  • Narrow banded laser absorption spectrometry
  • Atomic- and molecular resonant absorption spectrometry (ARAS/ MRAS)
  • UV/vis-absorption spectrometry

in combination with

  • Optical multi-channel analyser (OMA) detecting transient species in the VUV-, UV or visible spectral range

Conventional analysis methods for fresh- and residual gas  

  • Gas chromatograph and mass spectrometer (GC/GC-MS)
  • Analytical chemistry

Depending on the species, detection limits less than 1ppm can be achieved.

Two High Purity Shock Tube (heatable)

used for the investigation of the chemical kinetics of elementary reactions at combustion relevant temperature and pressure regimes.

Temperature 700 - 3000 K
Pressure 0.5 - 16 bar

 

High Pressure Shock Tube
.
Single-Pulse-Shock Tube

One High Pressure Shock Tube (heatable)

used for the validation of fuel reaction models by means of ignition delay time measurements.

Temperature 600 - 3000 K
Pressure (incident shock) 1 - 30 bar
Pressure (reflected shock) 3 - 150 bar
Fuel (energy) Jet A-1, practical alternative and synthetic jet fuels, model fuel compounds and blends (paraffines, iso-paraffines, cyclic and aromatic hydrocarbons)
Fuel (propulsion) Jet A-1, practical alternative and synthetic jet fuels, model fuel compounds and blends (paraffines, iso-paraffines, cyclic and aromatic hydrocarbons)
Fuel (transport) Reference fuels, n-heptane, iso-octane, gasoline and Diesel like fuels, alcohols, furanes and others
Air-to-Fuel ratio (AFR) arbitrary

 

One Single-Pulse-Shock Tube (heatable)


used for the validation of complex reaction mechanisms by means of products analysis of (intermediate) stable species.

 

Temperature 700 - 3000 K
Pressure 1 - 40 bar
Fuel (energy)
Fuel (propulsion)
Fuel (transport)
See high-pressure shock tube
Air-to-Fuel ratio (AFR) arbitrary, also pyrolysis

Use of this Research Facility?


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