| タイトル | A Microfabricated Segmented-Involute-Foil Regenerator for Enhancing Reliability and Performance of Stirling Engines |
| 本文（外部サイト） | http://hdl.handle.net/2060/20080006651 |
| 著者（英） | Ibrahim, Mounir; Mantell, Susan; Qiu, Songgang; Wood, Gary; Simon, Terrence; Sun, Liyong; Gadeon, David; Danila, Daniel; Kelly, Kevin; McLean, Jeffrey |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2007-12-01 |
| 言語 | eng |
| 内容記述 | An actual-size microfabricated regenerator comprised of a stack of 42 disks, 19 mm diameter and 0.25 mm thick, with layers of microscopic, segmented, involute-shaped flow channels was fabricated and tested. The geometry resembles layers of uniformly-spaced segmented-parallel-plates, except the plates are curved. Each disk was made from electro-plated nickel using the LiGA process. This regenerator had feature sizes close to those required for an actual Stirling engine but the overall regenerator dimensions were sized for the NASA/Sunpower oscillating-flow regenerator test rig. Testing in the oscillating-flow test rig showed the regenerator performed extremely well, significantly better than currently used random-fiber material, producing the highest figures of merit ever recorded for any regenerator tested in that rig over its approximately 20 years of use. |
| NASA分類 | Fluid Mechanics and Thermodynamics |
| レポートNO | NASA/CR-2007-215006
E-16191 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/256946 |
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