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Combustion Diagnostics Systems

Optical systems have a noninvasive nature that allows users to take measurements without inserting a probe into the measurement region. Because of this, optical systems do not suffer from measurement disturbance, making them ideal for combustion diagnostics. Hostile and restrictive environments like diesel engines and commercial burners, especially, will benefit from the accessibility, safety, and accuracy of TSI's optical systems for combustion diagnostics.

Most of the optical systems are planar measurements—they provide a 2-dimensional result for the parameter of interest. Some of the systems can be expanded to volumetric measurement, providing a 3-dimensional result.

TSI offers a number of optical systems especially suited for combustion diagnostics and characterization. 

Measuring Technique Characteristics Measurement Results
Planar Laser Induced Fluorescent (PLIF) Imaging System Flame radicals in reaction zone Species concentration of OH and CH
Planar Laser Induced Fluorescent (PLIF) Imaging System Flame pollutant analysis Species concentration of NO, CO, and SO2
Laser Induced Incandescence (LII) System Soot analysis in flame Concentration and size profile of soot
Laser Induced Filtered Rayleigh Scattering (LRS) System Flame temperature Profile of temperature
Particle Image Velocity (PIV) System Flame velocity and mixing Velocity field in flame
Phase Doppler Particle Analyzer (PDPA) System Flame velocity and propagation Velocity and size of particulates

Each of the systems can be used to analyze different aspects of combustion and diffuse flames. The advantages of opitcal techniques are numerous:

  • Instantaneous
  • Excellent spatial and temporal resolution
  • Upgradable optical systems can expand capability by adding hardware
  • Expandable from 1D to 2D or 3D; from single point to planar or volumetric

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