This paper experimentally investigated a cooling performance of double-laminated sintered woven wire mesh structures with different porosities. Each double-laminated test piece was made up of two parts which had different porosities and same thickness, and the total thickness is 6mm. The porosities of test pieces include 25.6%, 37.1%, 46.9% and 55.1%. All the tests were performed with air. In the experiments, the flow rate of main flow kept at 300Kg/h, and the blowing ratio between the cooling air and main flow approximately varied from 1.2% to 9%. The average surface temperature of test pieces was captured by an infrared thermal imager. Temperature of the main flow was fixed at 100°C. The cooling effectiveness for each specimen was calculated and analyzed. Experimental results showed that the cooling efficiency increases as the increase of the average porosity. The results also indicated that the cooling efficiency of the double-laminated model is affected by two layers together; the porosity and arrangement of two parts influents the cooling efficiency coupled. At last, the cooling performance of specimen with single porosity is higher than the specimen with combined porosity when the test pieces had a same geometric size.
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ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
June 15–19, 2015
Montreal, Quebec, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5672-7
PROCEEDINGS PAPER
An Experimental Investigation on Transpiration Cooling Based on the Double-Laminated Sintered Woven Wire Mesh Structures Available to Purchase
Ma Jiandong,
Ma Jiandong
Beihang University, Beijing, China
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Liu Yangpeng,
Liu Yangpeng
Beihang University, Beijing, China
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Li Haiwang
Li Haiwang
Beihang University, Beijing, China
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Ma Jiandong
Beihang University, Beijing, China
Xiang Luo
Beihang University, Beijing, China
Lv Pin
Beihang University, Beijing, China
Liu Yangpeng
Beihang University, Beijing, China
Li Haiwang
Beihang University, Beijing, China
Paper No:
GT2015-42878, V05BT12A024; 11 pages
Published Online:
August 12, 2015
Citation
Jiandong, M, Luo, X, Pin, L, Yangpeng, L, & Haiwang, L. "An Experimental Investigation on Transpiration Cooling Based on the Double-Laminated Sintered Woven Wire Mesh Structures." Proceedings of the ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. Volume 5B: Heat Transfer. Montreal, Quebec, Canada. June 15–19, 2015. V05BT12A024. ASME. https://doi.org/10.1115/GT2015-42878
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