Acquisition and Processing Considerations for Infrared Images of Rotating Turbine BladesSource: Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 004::page 041013-1Author:Knisely, Brian F.
,
Berdanier, Reid A.
,
Thole, Karen A.
,
Haldeman, Charles W.
,
Markham, James R.
,
Cosgrove, Joseph E.
,
Carlson, Andrew E.
,
Scire, James J., Jr.
DOI: 10.1115/1.4050143Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As designers aim to increase efficiency in gas turbines for aircraft propulsion and power generation, spatially resolved experimental measurements are needed to validate computational models and compare improvement gains of new cooling designs. Infrared (IR) thermography is one such method for obtaining spatially resolved temperature measurements. As technological advances in thermal detectors enable faster integration times, surface temperature measurements of rotating turbine blades become possible to capture including the smallest features. This paper outlines opportunities enabled by the latest IR detector technologies for capturing spatially resolved rotating blade temperatures, while also addressing some of the challenges of implementing IR for turbine rigs such as the one in the Steady Thermal Aero Research Turbine (START) Laboratory. This paper documents critical steps in achieving accurate measurements including calibration, integration times, spatial noise, and motion blur. From these results, recommendations are provided for achieving accurate IR measurements collected in a rotating turbine facility to study film cooling.
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| contributor author | Knisely, Brian F. | |
| contributor author | Berdanier, Reid A. | |
| contributor author | Thole, Karen A. | |
| contributor author | Haldeman, Charles W. | |
| contributor author | Markham, James R. | |
| contributor author | Cosgrove, Joseph E. | |
| contributor author | Carlson, Andrew E. | |
| contributor author | Scire, James J., Jr. | |
| date accessioned | 2022-02-05T22:08:02Z | |
| date available | 2022-02-05T22:08:02Z | |
| date copyright | 3/24/2021 12:00:00 AM | |
| date issued | 2021 | |
| identifier issn | 0889-504X | |
| identifier other | turbo_143_4_041013.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4276980 | |
| description abstract | As designers aim to increase efficiency in gas turbines for aircraft propulsion and power generation, spatially resolved experimental measurements are needed to validate computational models and compare improvement gains of new cooling designs. Infrared (IR) thermography is one such method for obtaining spatially resolved temperature measurements. As technological advances in thermal detectors enable faster integration times, surface temperature measurements of rotating turbine blades become possible to capture including the smallest features. This paper outlines opportunities enabled by the latest IR detector technologies for capturing spatially resolved rotating blade temperatures, while also addressing some of the challenges of implementing IR for turbine rigs such as the one in the Steady Thermal Aero Research Turbine (START) Laboratory. This paper documents critical steps in achieving accurate measurements including calibration, integration times, spatial noise, and motion blur. From these results, recommendations are provided for achieving accurate IR measurements collected in a rotating turbine facility to study film cooling. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Acquisition and Processing Considerations for Infrared Images of Rotating Turbine Blades | |
| type | Journal Paper | |
| journal volume | 143 | |
| journal issue | 4 | |
| journal title | Journal of Turbomachinery | |
| identifier doi | 10.1115/1.4050143 | |
| journal fristpage | 041013-1 | |
| journal lastpage | 041013-12 | |
| page | 12 | |
| tree | Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 004 | |
| contenttype | Fulltext |