| タイトル | An experimental investigation of two-phase liquid oxygen pumping |
| 本文（外部サイト） | http://hdl.handle.net/2060/19730025014 |
| 著者（英） | Gross, L. A. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1973-11-01 |
| 言語 | eng |
| 内容記述 | The results of an experimental program to explore the feasibility of pumping two-phase oxygen (liquid and gas) at the pump inlet are reported. Twenty-one cavitation tests were run on a standard J-2 oxygen pump at the MSFC Components Test Laboratory. All tests were run with liquid oxygen 5 to 10 K above the normal boiling point temperature. During ten tests run at approximately at the pump inlet were noted before complete pump performance 50 percent of the nominal operating speed, two phase conditions were achieved. Vapor volumes of 40 to 50 percent at the pump inlet were noted before complete pump performance loss. The experimental results compared to predictions. Nine cavitation tests run at the nominal pump speed over a 5 K temperature range showed progressively lower net positive suction head (NPSH) requirements as temperature was increased. Two-phase operation was not achieved. The temperature varying NPSH data were used to calculate thermodynamic effects on NPSH, and the results were compared to existing data. |
| NASA分類 | PROPULSION SYSTEMS |
| レポートNO | 73N33747
NASA-TN-D-7451
M-383 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/197176 |
