タイトル | Re-entrant groove heat pipe |
著者(英) | Tower, L. K.; Harwell, W.; Kaufman, W. B. |
著者所属(英) | NASA Lewis Research Center|Grumman Aerospace Corp. |
発行日 | 1977-06-01 |
言語 | eng |
内容記述 | This paper describes theoretical and experimentally verified heat pipe characteristics of an axially grooved aluminum extrusion with a re-entrant groove profile. The extrusion is 13 mm diameter with 20 axial grooves, each groove consisting of a nominal .8 mm diameter channel with a .2 mm wide passageway connecting the channel to the hollow core. A computer program was written to compute the zero gravity heat transport capability of the extrusion. A heat pipe was fabricated and its performance characteristics measured. The characteristics of the pipe with ammonia at 20 C are: zero gravity pumping limit 143 w-meters; static wicking height 21.5 mm; evaporator and condenser coefficients 7300 and 20,500 watt/sq m C, respectively. |
NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
レポートNO | 77A37280 AIAA PAPER 77-773 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/437530 |