- Polytech
- ATM
- EN
- Our Lab
- Lab Facilities
-
Partager cette page
Stagnation-point Reverse Flow Combustor for Micro-Gas Turbine Applications
The facility consists of a quartz combustion chamber equipped with a non-premixed co-flow burner with a flexible power ranging from 5 to 25 kW, and dedicated fuel and air supply units.
The setup is designed for the study of fundamental combustion phenomena under well-controlled laboratory conditions. The rig supports both fundamental and applied studies of low-emission micro-gas turbine combustion technologies.
Unique Capabilities and Highlights
The transparent design of the stagnation-point reverse flow combustor provides optical access for advanced imaging diagnostics, while its modular supply system allows for flexible operation with conventional and alternative fuels.
· High Fuel Flexibility: Can operate with a wide variety of fuels:
- Gaseous fuels: H2, NH3, DME, CH4, CO, natural gas and blends of them, including diluents.
- Liquid fuels: Kerosene-type liquids and alcohols.
· Flexible Operation: Features flexible thermal power (5-25 kW), preheating temperature (up to 650 °C), and air nozzle diameters for adjustable operation.
· Industrial Relevance: Operates under conditions that closely resemble real micro-gas turbines.
Measurements and Diagnostics
Temperatures at various locations within the combustion chamber are measured using thermocouples. Quartz windows provide optical access for chemiluminescence imaging and laser-based diagnostics (PIV, Rayleigh scattering, LIF) with high-speed cameras. The flue gas compositions are measured on a wet basis using two gas analyzers: an Emerson® Rosemount CT5100 continuous analyzer based on the Quantum Cascade Laser (QCL) spectroscopy principle and a Fourier Transform InfraRed (FTIR) analyzer (HORIBA MEXA-ONE-FT).