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A High Temperature Assessment of Air-Cooled Unsteady Pressure Transducers FREE

[+] Author Affiliations
Derek G. Ferguson, Paul C. Ivey

Cranfield University, Bedfordshire, UK

Paper No. 97-GT-006, pp. V004T15A002; 6 pages
doi:10.1115/97-GT-006
From:
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7871-2
  • Copyright © 1997 by ASME

abstract

This paper discusses the problem of measuring unsteady pressure in a high temperature environment using standard transducers. Commercially available cooling adapters for these transducers use water as the cooling medium to provide thermal protection. This arrangement is suitable only for some test bed applications and not suitable for integration into inflight active control systems.

An assessment of the cooling effectiveness of a commercial water cooled adapter using air as the cooling medium is presented using an experimentally validated finite element heat transfer model. The assessment indicates survival of an air-cooled transducer, itself rated to 235°C, at source flow temperatures up to 800°C.

Copyright © 1997 by ASME
This article is only available in the PDF format.

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