BN-1800 main characteristics

1 January 2000

Characteristic Value
Thermal reactor power, MWt 4000
Unit power, MWe 1800
Efficiency (gross/net), % 46.2/42.4
Primary sodium temperature C:
at the core inlet 410
at the inlet to IHX 575
at the refueling outage 250
Number of primary coolant MCPs 3
Number of IHXs 6
Internal diameter of the reactor vessel, m 17.0
Sodium volume in the reactor at refuelling outage, m3 2620
Gas pressure in the primary circuit:
rated power operation, MPa 0.05
refuelling outage, MPa 0.005
Refuelling interval, days 560
Number of secondary circuit loops 6
Intermediate steam superheating by sodium

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