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The recovery current system makes use of the properties of
Freon-114 which allows us to liquify it at room temperature and at relatively low
pressure. This can be seen in the following table:
| Temp, F | Pressure, psia | liquid dens., lb/ft**3 | Vapor Vol., ft**3/lb |
| 38 | 14.503 | 93.61 | 2.0563 |
| 38.62 | 14.696 | 93.56 | 2.0309 |
| 40 | 15.134 | 93.47 | 1.9757 |
| 44 | 16.461 | 93.20 | 1.8257 |
| 48 | 17.877 | 92.92 | 1.6895 |
| 52 | 19.384 | 92.63 | 1.5655 |
| 56 | 20.988 | 92.33 | 1.4524 |
| 60 | 22.693 | 92.02 | 1.3492 |
| 64 | 25.501 | 91.69 | 1.2549 |
| 68 | 26.418 | 91.35 | 1.1685 |
| 72 | 28.447 | 91.00 | 1.0894 |
| 76 | 30.593 | 90.64 | 1.0167 |
| 85 | 35.868 | 89.79 | 0.8737 |
| 90 | 39.080 | 89.29 | 0.8049 |
| 95 | 42.504 | 88.78 | 0.7426 |
| 100 | 46.148 | 88.25 | 0.6861 |
The Freon-114 recovery system compresses the air/Freon-114 mix from the output "chiminey" of the Cerenkov gas system at room temperature. The two components are phase separated on the output, the Freon-114 is liquid, the air is gas. A holding tank stores the liquid Freon-114 at 20 psia, and the compressed air bubbles through the liquid and is expelled through a back-pressure regulator on the output side of the holding tank.
A "Capsuhelic" pressure meter senses the pressure difference between the top of the tank and the bottom of the tank, thus providing information regarding how much Freon-114 is in the tank. When the tank is full, it can be emptied directly into a gas bottle. This bottle can be used directly if the purity is sufficiently high, or it can be sent back to some manufacturer to be purified.