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Gas Temperature Measurement in Engine Conditions Using Uniform Crystal Temperature Sensors (UCTS)

[+] Author Affiliations
Jason DeVoe

QuEST Global Services-NA, Inc., Phoenix, AZ

Anastasia Thomas, Edward Ginzbursky

LG Tech-Link Global, LLC, Gilbert, AZ

Reagan DeVoe

University of Arizona, Tucson, AZ

Paper No. GT2018-76890, pp. V05BT13A016; 9 pages
  • ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition
  • Volume 5B: Heat Transfer
  • Oslo, Norway, June 11–15, 2018
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5109-8
  • Copyright © 2018 by ASME


Validation and tuning methods for analytical algorithms used in modeling heat transfer for engine parts, such as turbine blades, require the direct comparison of calculated and experimental metal temperature measurement results. It is important to ensure that the geometric characteristics as well as the boundary condition parameters of the gas flow are held in common for both the physical experiment and the calculation. Unfortunately, the task of obtaining knowledge of the gas parameters such as the radial temperature profile at the turbine inlet is far from trivial. The authors will briefly survey commonly used methods and the uncertainties related to their application based on publicly available data. Among these techniques, a relatively new method of using Uniform Crystal Temperature Sensors (UCTS) for gas temperature measurement, may offer some advantages and will be analyzed in greater detail.

The authors use 3D Finite Element Analysis code to analyze sources of potential systematic error for gas temperature measurement using UCTS. A matrix of varying materials and configurations is evaluated. Recommendations drawn from this analysis will enable analytical designers and instrumentation engineers to optimize the application of this technique specific to their test requirements.

Copyright © 2018 by ASME



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