A-5 多段傾斜インピンジメント冷却構造の冷却性能に関する実験的研究(伝熱II,一般講演)

概要

論文の詳細を見る
Innovative cooling method named Multiple Angled Impingement, which realizes drastic reduction of cooling air used for turbine shrouds, has been invented. To confirm cooling performance of this cooling structure, we manufactured test pieces of dummy turbine shrouds to which Multiple Angled Impingement cooling structure and conventional impingement cooling structure were applied. Cooling performance tests were conducted using these test pieces for several Reynolds numbers of mainstream hot gas and cooling air flow. IR images on heated surfaces of the test pieces were captured for every Reynolds numbers in the tests and then distributions of cooling effectiveness were obtained. In the results of these tests, space-mean cooling effectiveness on the test piece surface of Multiple Angled Impingement was much better than that of the conventional impingement cooling structure.
公益社団法人日本ガスタービン学会の論文
2006-10-01