An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique
This study was an investigation into the application of the infrared thermal imaging technique (IRTIT) to evaluate transpiration cooling performance through a porous wall. Two typical infrared thermograph systems, the AGA 782 short-wavelength system and the VARIOSCAN 3021 long-wavelength system, wer...
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| Format: | Article |
| Language: | English |
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Wiley
2003-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/S1023621X03000149 |
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| author | J. H. Wang J. Messner H. Stetter |
| author_facet | J. H. Wang J. Messner H. Stetter |
| author_sort | J. H. Wang |
| collection | DOAJ |
| description | This study was an investigation into the application of the infrared thermal imaging technique (IRTIT) to evaluate transpiration cooling performance through a porous wall. Two typical infrared thermograph systems, the AGA 782 short-wavelength system and the VARIOSCAN 3021 long-wavelength system, were employed to demonstrate the availability of the IRTIT measurement. In comparison with general infrared apparent temperature measurement, several factors that influence measurement accuracy need to be addressed in the application of the IRTIT in the region of transpiration cooling on the porous surfaces of turbine components. In this article, the influence of these factors on measurement accuracy is discussed, the corresponding calibration methods of the two infrared systems are described, and the ambient conditions and stability of the measurement are analyzed. Aporous circular tube was used as a specimen. The tube consisted of sintered chromium-nickel steel with a porosity of 21%. The experiment was carried out in the hotgas wind tunnel at the Institute of Thermal Turbomachinery at the University of Stuttgart, Stuttgart, Germany. |
| format | Article |
| id | doaj-art-2c732ec8a755487e8c5cc942bd589eb9 |
| institution | DOAJ |
| issn | 1023-621X |
| language | English |
| publishDate | 2003-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-2c732ec8a755487e8c5cc942bd589eb92025-08-20T03:20:25ZengWileyInternational Journal of Rotating Machinery1023-621X2003-01-019315316110.1155/S1023621X03000149An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement TechniqueJ. H. Wang0J. Messner1H. Stetter213th Department, University of Science and Technology of China, Hefei, ChinaInstitut für Thermische Strömungsmaschinen und Maschinenlaboratorium, University of Stuttgart, Stuttgart, GermanyInstitut für Thermische Strömungsmaschinen und Maschinenlaboratorium, University of Stuttgart, Stuttgart, GermanyThis study was an investigation into the application of the infrared thermal imaging technique (IRTIT) to evaluate transpiration cooling performance through a porous wall. Two typical infrared thermograph systems, the AGA 782 short-wavelength system and the VARIOSCAN 3021 long-wavelength system, were employed to demonstrate the availability of the IRTIT measurement. In comparison with general infrared apparent temperature measurement, several factors that influence measurement accuracy need to be addressed in the application of the IRTIT in the region of transpiration cooling on the porous surfaces of turbine components. In this article, the influence of these factors on measurement accuracy is discussed, the corresponding calibration methods of the two infrared systems are described, and the ambient conditions and stability of the measurement are analyzed. Aporous circular tube was used as a specimen. The tube consisted of sintered chromium-nickel steel with a porosity of 21%. The experiment was carried out in the hotgas wind tunnel at the Institute of Thermal Turbomachinery at the University of Stuttgart, Stuttgart, Germany.http://dx.doi.org/10.1155/S1023621X03000149 |
| spellingShingle | J. H. Wang J. Messner H. Stetter An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique International Journal of Rotating Machinery |
| title | An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique |
| title_full | An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique |
| title_fullStr | An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique |
| title_full_unstemmed | An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique |
| title_short | An Experimental Investigation of Transpiration Cooling. Part I: Application of an Infrared Measurement Technique |
| title_sort | experimental investigation of transpiration cooling part i application of an infrared measurement technique |
| url | http://dx.doi.org/10.1155/S1023621X03000149 |
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