Measurements of Gas Temperature in a HCCI Engine Using a Fourier Domain Mode Locking Laser

Laura A. Kranendonk, Joachim W. Walewski, Scott T. Sanders, Robert Huber, James G. Fujimoto

Abstract

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.
Original languageEnglish
Title of host publicationSAE 2006 World Congress & Exhibition
PublisherSAE International
Publication date01.04.2006
DOIs
Publication statusPublished - 01.04.2006

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