Problem Definition: Publicly available data are inadequate for validating exhaust emission models from CH4/O2 engines. The aim is to identify greenhouse gas emissions in the exhaust plumes of liquid rocket engines and to provide data sets suitable for validating numerical models.
Research Objectives:
- Develop laser-based measurement methodology and mobile instrumentation for application on test benches
- Perform measurements during sub-scale CH4/O2 static firing tests (at test bench M3.1) for calibration of diagnostic parameters and systematic parametrical study of emission species dependencies on ROF for a fixed chamber pressure
- Perform measurements during testing of a sub-scale, high-power CH4/O2 thrust chamber at representatively high chamber pressure and energy density (at test bench P8), including collection of spectroscopic data and accompanying imaging of plume structure
- Analyse data for species identification, build database of plume characteristics for different operation conditions
- Comparison of laser-based and existing spectroscopic measurement method results, uncertainty analysis
Expected Results:
- Published database of exhaust plume measurements for representative engine operating conditions
Secondments:
- Centre Euopéen de Recherche et de Formation Avancée en Calcul Scientifique (CERFAS, Toulouse, France, ca. 3 months): alignment on validation measurement requirements
- University of Stuttgart (US, Stuttgart, Germany, ca. 7 months): verification of mobile instrumentation under cross-check conditions
Main Supervisor:
Co-Supervisors:
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