Systems Design, Fabrication, and Testing of a High-Speed Miniature Motor for Cryogenic Cooler
| Autor: | Dipjyoti Acharya, Lei Zhou, Liping Zheng, Thomas X. Wu, Jay Kapat, Louis Chow, Nagaraj K. Arakere |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | International Journal of Rotating Machinery, Vol 2009 (2009) |
| Druh dokumentu: | article |
| ISSN: | 1023-621X 1542-3034 |
| DOI: | 10.1155/2009/936251 |
| Popis: | The long-term storage of liquid hydrogen for space missions is of considerable interest to NASA. To this end, the Reverse Turbo-Brayton Cryocooler (RTBC) is considerably lighter than conventional designs and a potentially viable and attractive solution for NASA's long-term Zero-Boil-off (ZBO) hydrogen storage system for future space missions. We present the systems design, fabrication, and performance evaluation of the Permanent Magnet Synchronous Motor (PMSM) powering a cryocooler capable of removing 20 W of heat at 18 K with a COP of 0.005 and driven by two 2-kW permanent magnet synchronous motors operating at 200 000 rpm and at room temperature and 77 K. Structural, thermal, and rotordynamic aspects of system design are considered. |
| Databáze: | Directory of Open Access Journals |
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