複合型インピンジ冷却構造の冷却性能に対するピン配置の影響

概要

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Experimental study was conducted for the development of the integrated impingement and pin-fin cooling configuration. In the development, the spatial arrangements of impingement holes, pin-fins and film cooling (discharge) holes were the main concern. The temperature measurement was performed for different test pieces with various pin arrangements to clarify the cooling effectiveness variation with the pin arrangement. Experiments were conducted with 673K hot gas flow and room temperature cooling air. The Reynolds number of gas side flow was 170000-650000 and cooling air Reynolds number was 2600-40000. Test plate surface temperatures were measured using an infrared camera. It was confirmed that an arrangement of the pin was an important parameter.
社団法人日本ガスタービン学会の論文
2006-03-20