An Overview of Combustion Diagnostics

Abstract

In this chapter, several of the diagnostic techniques commonly used to investigate combustion phenomena are reviewed, and a brief survey is provided of the mechanical probing techniques used to measure temperature, flow velocity, pressure and species concentrations (including flue gas diagnostics). The chapter includes an overview of optical techniques used for flow diagnostics, species concentration and temperature measurements in reacting flows. The use of imaging and multidimensional diagnostics for typical structures in the combustion field is also outlined. The simultaneous use of different planar measurement techniques describes state‐of‐the‐art of laser diagnostics in combustion research, and the potential for laser‐diagnostics to validate these approaches, as used in numerical simulations.

Hetero‐/Homogeneous Combustion

“…2 Ch. 5 [48][49][50]). Fluid mechanical transport, in particular turbulent, can also be assessed with particle image velocimetry [11].…”

Flame detection via active plasma probing

“…4,5 Under such background conditions, flame detection techniques are important tools for both, research and application purposes. 6,7 Flame detection can be realized via multiple techniques, such as optical diagnostics, ion sensors, and so on. Optical diagnostics either uses schlieren imaging to record the flame front movement, 8 or uses a laser to perform either PIV or species analysis to trace the movement of the flame front.…”