Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright Cr-doped GdAlO3 thermographic phosphor

J. I. Eldridge, T. P. Jenkins, S. W. Allison, D. E. Wolfe, R. P. Howard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

• Successfully demonstrated temperature measurements from Cr:GAP coated Honeywell stator vane doublet in afterburner flame of the AEDC J85-GE-5 turbojet test stand located at UTSI. - Successful coating deposition onto complex stator doublet shape by EB-PVD. - Excellent emission intensity and temperature sensitivity from 25 μm thick surface coating. - Wide temperature range 550°C to 1025°C measured over range of afterburner conditions. - Engine-compatible probe design demonstrated - Integrated excitation and collection. - Thermal protection of probe. - Unintended cooling of measurement surface to be corrected in future. x • Future Plans - Cr:GAP downselected as one of two thermographic phosphors for upcoming AFRL VAATE temperature measurements of high-pressure turbine stator in Honeywell TECH7000 demonstrator engine. - Cr:GAP downselected as one of three thermographic phosphors for upcoming NASA VIPR temperature measurements of rotating blade surfaces in Pratt & Whitney F117 engine. - 2D surface temperature mapping by gated imaging underway at NASA GRC.

Original languageEnglish (US)
Title of host publication59th International Instrumentation Symposium 2013
Pages16-28
Number of pages13
StatePublished - Dec 1 2013
Event59th International Instrumentation Symposium 2013 - Cleveland, OH, United States
Duration: May 13 2013May 17 2013

Publication series

NameProceedings of the International Instrumentation Symposium
Volume495
ISSN (Print)1558-8041

Other

Other59th International Instrumentation Symposium 2013
CountryUnited States
CityCleveland, OH
Period5/13/135/17/13

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Engineering(all)

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    Eldridge, J. I., Jenkins, T. P., Allison, S. W., Wolfe, D. E., & Howard, R. P. (2013). Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright Cr-doped GdAlO3 thermographic phosphor. In 59th International Instrumentation Symposium 2013 (pp. 16-28). (Proceedings of the International Instrumentation Symposium; Vol. 495).