The Experimental Sodium Loop at the HZDR

(NATtrium-VersuchsANlage NATAN)

• fluid inventory: 100 l
• temperature range: 120 - 300^oC
• test sections: horizontal (1), vertical (2), rectangular cross section (45 x 50 mm²)
• velocity range: up to 1.5 m/s
• magnetic systems: electromagnets supplying a transverse magnetic field
  magnet 1: length of uniform field 320 mm, maximum field strength 0.45 T
  magnet 2: length of uniform field: 1100 mm, maximum field strength: 0.8 T
• range of dimensionless parameters: Reynolds number Re up to about 10⁵
  Hartmann number Ha up to 2700 (magnet 1), up to 4800 (magnet 2)
  Interaction parameter N: 800 (magnet 1, v_So = 0.1 m/s), 2500 (magnet 2, v_So = 0.1 m/s)

Schematic view of the sodium loop

Horizontal test section with magnetic system 1