NDLI: Phosphor Based Temperature Indicating Paints

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Heyes, A. L. Rabhiou, A. Feist, J. P. Kempf, A. M.
Copyright Year	2012
Abstract	The ability to measure temperature in extreme environments such as the hot sections of gas turbines is critically important. Several on-line techniques exist but it is often not possible to measure in real-time the temperature of all surfaces of interest. Indeed, some surfaces are so inaccessible as to require complex, costly and intrusive instrumentation for on-line temperature measurement. Here, off-line sensors, also called thermal history sensors, can be used to record the temperatures to which they are exposed, in such a way that they can be extracted later off-line, at room temperature. Probably the best-known types of thermal history sensor are the colour changing thermal paints, that are widely used in gas turbine development. These have been valuable tools of engine developers for many years, but their use presents a number of challenges so that alternatives would be welcome. This paper reports the latest developments of a thermal history sensor based on phosphors that undergo permanent changes in their luminescence properties when exposed to high temperatures. Such thermal history sensors have several advantages over and address many of the shortcomings of existing sensors. The paper contains details of the application of a phosphor-based temperature indicating paint based on Y2SiO5:Tb suspended in a chemical binder. The binder was found to influence the optical properties of the phosphor but despite this, a viable sensor paint for temperatures in the range 400°C to 900°C was formed. A thermal history coating was installed using a thermal barrier coating architecture, applied on various components of a Royce-Rolls Viper 201 engine owned by STS and operated for a number of hours at Cranfield University. Post-operation analysis revealed a temperature distribution on the surfaces/components and enabled hotspots to be identified. Overall the results suggest that phosphor-based temperature indicating paints have the potential to surpass the capability of existing paints.
Sponsorship	International Gas Turbine Institute
Starting Page	927
Ending Page	933
Page Count	7
File Format	PDF
ISBN	9780791844670
DOI	10.1115/GT2012-69811
Volume Number	Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation
Conference Proceedings	ASME Turbo Expo 2012: Turbine Technical Conference and Exposition
Language	English
Publisher Date	2012-06-11
Publisher Place	Copenhagen, Denmark
Access Restriction	Subscribed
Subject Keyword	Temperature distribution Temperature Binders (materials) Luminescence Instrumentation High temperature Coatings Engines Temperature measurement Gas turbines Phosphors Thermal barrier coatings Sensors Coating processes Paints
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Off-Line Temperature Profiling Utilising Phosphorescent Thermal History Paints and Coatings

Phosphor Thermometry of Gas Turbine Surfaces

Operation of a Burner Rig for Thermal Gradient Cycling of Thermal Barrier Coatings

Temperature measurements of thermal barrier coating surfaces using a cr-doped gdalo3 thermographic phosphor

A Statistical Assessment of the Damage State in Plasma-Sprayed Thermal Barrier Coating

Influence of a Thermal Barrier Coating on the Performance of a Turboprop Engine

Validation of Surface Temperature Measurements on a Combustor Liner Under Full-Load Conditions Using a Novel Thermal History Paint

Phosphor thermometry for high temperature gas turbine applications

A First Application of Thermographic Phosphors in a Marine Two-Stroke Diesel Engine for Surface Temperature Measurement

Phosphor Based Temperature Indicating Paints

Similar Documents

Off-Line Temperature Profiling Utilising Phosphorescent Thermal History Paints and Coatings

Phosphor Thermometry of Gas Turbine Surfaces

Operation of a Burner Rig for Thermal Gradient Cycling of Thermal Barrier Coatings

Temperature measurements of thermal barrier coating surfaces using a cr-doped gdalo3 thermographic phosphor

A Statistical Assessment of the Damage State in Plasma-Sprayed Thermal Barrier Coating

Influence of a Thermal Barrier Coating on the Performance of a Turboprop Engine

Validation of Surface Temperature Measurements on a Combustor Liner Under Full-Load Conditions Using a Novel Thermal History Paint

Phosphor thermometry for high temperature gas turbine applications

A First Application of Thermographic Phosphors in a Marine Two-Stroke Diesel Engine for Surface Temperature Measurement

Phosphor Based Temperature Indicating Paints