S-ALLEGRO

Experimental Mockup

S-ALLEGRO

The scope of the S-ALLEGRO mockup is to gain construction and operation experience in a scaled down facility. The experimental programme is aimed at verification of basic safety characteristics of helium cooled high temperature fast reactor (GFR), namely the ALLEGRO demonstration unit

Technical Data

Main Parameters of S-ALLEGRO

900 °C

Maximum temperature

7 MPa

Operating pressure

0.5 kg/s

Helium massflow in the primary circuit

1 MX

Heat input

1:75

Scale

Experimental Programme

Investigated Characteristics

  • Decay heat removal system
  • Natural circulation cooling
  • System behaviour during transients
  • System behaviour during accidental conditions
  • Overal system behaviour from the viewpoint of heat loss, temperature fields and influence of parameter change on whole system

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