Parameters

Physical

Max thermal power

100 MW

Core:

• height

350 mm

• volume

50 l

• effective size

420х420 mm

• number of the cells for operating FA

28

Moderator

water

Reflector

beryllium

Neutronic

Max thermal neutron flux density

5x10¹⁹ m^-2s^-1

Max fast neutron flux density

2x10¹⁹ m^-2s^-1

Average neutron energy

0.1 eV

Effective fraction of delayed neutrons

0.00755

Power peaking factor:

• core heightwise

1.25

• core cross-section

2.16

• FA cross-section (adjacent to the neutron trap)

2.06

• volumetric

5.56

Average fuel burnup in the core volume:

• reactor run beginning

15 ÷ 18

• reactor run end

19 ÷ 22

Average U-235 burnup in unloaded FAs

35

Max reactivity margin at the average fuel burnup 15%

17 β_ef

Total efficiency of control and safety rods (max reactivity margin in the core)

24 β_ef

Power reactivity factor under the core operating parameters

-(3 ± 1)x10^-5

Temperature

Max heat rate density

10 MW/l

Average heat rate density

2 MW/l

Axial heat rate non-uniformity

1.15

Coolant:

water

• flow rate through the reactor

2400 m³/h

• pressure

4.9 MPa

• inlet temperature

up to 60^оC

• outlet temperature

up to 95^оC

Fuel:

UO²

Enrichment in U-235

90 %

Reactor operating mode

Micro-run duration

10 ÷ 14 days

Outage duration

up to 6 days

Effective time of operation at power

240 days/year