Browse Publications Technical Papers 2006-01-1366
2006-04-03

Measurements of Gas Temperature in a HCCI Engine Using a Fourier Domain Mode Locking Laser 2006-01-1366

Initial measurements of water vapor temperature using a Fourier domain mode locking (FDML) laser were performed in a carefully controlled homogenous charge compression ignition engine with optical access. The gas temperature was inferred from water absorption spectra that were measured each 0.25 crank angle degrees (CAD) over a range of 150 CAD. Accuracy was tested in a well controlled shock tube experiment. This paper will validate the potential of this FDML laser in combustion applications.

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