METHOD FOR DETERMINATION OF FUEL THERMAL STABILITY

• Main Authors: MOSES, CLIFFORD A, NAEGELI, DAVID W, WILSON, GEORGE, R, III
• Format: Patent
• Language: English; French
• Published: 19.04.2007
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TESTING

A method of evaluating thermal stability of a fuel and an apparatus used therein. The method includes heating the fuel to a given temperature, directing light through the heated fuel a first time wherein the light is of an intensity and of a wavelength to induce fluorescence and obtaining a first fluorescence data, directing the light through the fuel at least a second time that is later in time and obtaining a second fluorescence data, and measuring any changes to fluorescence from the heated fuel over time. La présente invention concerne un procédé d'évaluation de la stabilité thermique d'un combustible et un appareil à cet effet. En l'occurrence, on porte le combustible à une température donnée. On fait passer dans ce combustible chaud une lumière d'une intensité et d'une longueur d'ondes induisant une fluorescence dont on recueille une première mesure. On recommence au moins une fois un peu après, ce qui donne d'autres valeurs de fluorescence. Il ne suffit plus que de mesurer les variations affectant de fluorescence entre ces deux instants.