Thermosiphon test bench
Thermosiphon Station: Study of two-phase flows in cryogenic natural circulation
Context
Characterization of single phase and two-phase flows (by measurements of mass flow rate, volume ratio, pressure drop and wall temperature) along a vertical test section (h = 1.2 m) and a horizontal test section (Φ = 0.4 m) at the temperatures of liquid helium and nitrogen.
The station offers a large versatility in the geometry of the cooling loop.
Technical means
- Power dissipated in the samples P ≤ 1 kW,
- Supply by dewar,
- Multi-channel fast data acquisition system (333 kHz / number of channels),
- Possible measurement types:
- Temperature measurements in helium and nitrogen,
- Mass flow rate measurements of liquid helium from 0 to 22 g/s, and mass flow rate measurements up to 8 g/s for gaseous helium at a dissipated power of 160 W,
- Mass flow rate measurements of nitrogen from 0 to 40 g/s for a maximum dissipated power of 8 kW,
- Vapour volume ratio measurements from 0 to 0.25,
- Absolute and differential pressure measurements in the loop.
Achievements, related projects
- Implementation of different types of flows in the framework of R&D projects.
- Definition of the CMS cooling system (thermosiphon) and validation of its working principle on this platform.
- Study of the cooling system (thermosiphon) of the super FRS magnets (future study).
Contact:
#766 - Last update : 10/06 2017
