LOCA Laboratories

in

Research Centre Řež

Roman Mohyla

Research Centre Řež

Who we are and what we do

-Testing components for NPP

-Testing new materials for NPP (geopolymers, concrete)

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Laboratories

1. High Voltage laboratory

2. Gamma irradiation laboratory

3. LOCA laboratory

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1. High Voltage Laboratory

Withstand Voltage Test

50 kV AC / 100 kV DC

Insulation Resistance Test

Test in water pool with controlled water temperature up to 90°C

Possibbility to test large and heavy specimens (crane)

Acredited laboratory

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2. Gamma Irradiation Laboratory

Irradiation source 60Co, activity 200 TBq

Experimental box with possibility to irradiate with various

temperatures

Temperature aging irradiated components

Laboratory designed for small samples

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2. Gamma Irradiation Laboratory

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2. Gamma Irradiation Laboratory – experimental

box

Sample holder 150x200 mm

Max. height irradiated samples 160 mm

Lenght of the box 450 mm

-196°C/ +400°C and high vacuum.

Polymers, electronic devices and

equipment, plastic components,

geopolymers

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3. LOCA Laboratory

LOCA (Loss of Coolant Accident)

Designed for large specimens

Testing cables, motors, pumps, sensors,...

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3. LOCA Laboratory

Main parts of LOCA technology:

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Pressure vessels for tested samples

Steam boiler for generating steam

Spray solution system

Control room

Large LOCA Small LOCA

3. LOCA Laboratory

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Large LOCA

V = 3.5 m3

Tmax = 300 C

pmax = 20 bar

Small LOCA

V = 0.6 m3

Tmax = 300 C

pmax = 20 bar

H2 Chamber

V = 0,3 m3

Tmax = 800 C

Pmax = 20 bar

3. Thermodynamic profiles of LOCA Laboratory

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Large LOCA Small LOCA

3. Thermodynamic profile of Large LOCA

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12.11.2017 12:47:31 12.11.2017 12:48:58 12.11.2017 12:50:24 12.11.2017 12:51:50 12.11.2017 12:53:17 12.11.2017 12:54:43 12.11.2017 12:56:10

300°C 20bara

Teploty Hodnota 11 Teploty Hodnota 12 Teploty Hodnota 13 Tlaky Hodnota 1

54s 23s

Pressure drop 0,2bar for 23s

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Thank you for your attention

http://cvrez.cz/

http://susen2020.cz/

Roman Mohyla

roman.mohyla@cvrez.cz

Any Questions?