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Published on: October 2, 2016
Design and characterization of a linear Hencken-type burner
M F Campbell1, G A Bohlin1, P E Schrader1
1Combustion Research Facility, Sandia National Laboratories, Livermore, California 94550, USA.
A novel Hencken-type burner creates a linear laminar flame for detailed soot chemistry research. This design enhances optical measurements and provides comprehensive flame characterization.
Area of Science:
- Combustion science
- Chemical engineering
- Optical diagnostics
Background:
- Soot formation is a critical aspect of combustion processes.
- Conventional burners often lack the geometry for extensive optical analysis.
- Linear flames offer advantages for studying flame chemistry and physics.
Purpose of the Study:
- To design and construct a Hencken-type burner producing a linear laminar partially premixed co-flow diffusion flame.
- To enable advanced optical measurements for soot chemistry studies.
- To characterize the performance and flame properties of the new burner.
Main Methods:
- Hencken-type burner design and fabrication.
- Hot-wire anemometry for flow-field velocity measurements.
- Coherent Raman imaging for temperature measurements.
- Laser-induced incandescence and laser extinction for soot volume fractions.
- Transmission electron microscopy for soot morphology analysis.
Main Results:
- Successful construction of a burner producing a 38-mm linear laminar flame.
- Characterization of flame velocities, temperatures, and soot volume fractions.
- Demonstration of suitability for various optical diagnostic techniques.
- Analysis of soot particles sampled from the flame.
Conclusions:
- The developed Hencken-type burner effectively produces a linear laminar flame.
- The burner design facilitates detailed optical measurements for combustion research.
- Comprehensive characterization validates the burner's utility for soot chemistry studies.
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