Fuhrmann, Norman; Schild, Martin; Bensing, Dennis; Kaiser, Sebastian; Schulz, Christof; Brübach, Jan; Dreizler, Andreas:

Two-dimensional cycle resolved exhaust valve temperature measurements in an optically accessible internal combustion engine using thermographic phosphors

In: Applied Physcis B: Laser and optics, (2011)
Zeitschriftenaufsatz / Fach: Maschinenbau
Fakultät für Ingenieurwissenschaften » Maschinenbau und Verfahrenstechnik » Institut für Verbrennung und Gasdynamik
Abstract:
Phosphor thermometry was employed to measure
the temperature distribution of the exhaust valves in
an optically accessible direct injection internal combustion
engine. A CMOS high-speed camera was used to twodimensionally
resolve the temperature dependent luminescence
decay of the phosphor Gd3Ga5O12:Cr. Measurements
were performed under motored and fired conditions for several
degrees crank angle to determine the temperature distributions
within cycles. Additionally, several binders have
been tested in terms of survivability and signal strength to
guarantee ideal phosphor coating.
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