| タイトル | Design and testing of a passive, feedback-controlled, variable conductance heat pipe |
| 本文（外部サイト） | http://hdl.handle.net/2060/19730020188 |
| 著者（英） | Schlitt, K. R. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1973-08-01 |
| 言語 | eng |
| 内容記述 | A passive feedback system, which stabilizes the heat source temperature (T sub s) of a gas loaded heat pipe, was designed and tested. The control of T sub s is accomplished by an auxiliary liquid that senses the heat source and actuates a metal bellows system due to the liquid's thermal expansion. The movement of the bellows varies the gas reservoir volume and leads to a corresponding change of the condensation area of the heat pipe. With methanol as the heat pipe working fluid and perfluoro-n-pentane as the auxiliary liquid, the control capability was found to be T sub s = 31.5 + or - 1.5 C in a power range from 3 to 30 W, compared to T sub s = 33 + or - 3 C with methanol as auxiliary liquid. The change in T sub s was 35 + or - 5.5 C with the bellows held in the closed position. |
| NASA分類 | THERMODYNAMICS AND COMBUSTION |
| レポートNO | 73N28920
NASA-TM-X-62293 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/198287 |
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