RVS-3

RVS-3

The loop is designed for material and radioactivity transport investigation under PWR/VVER conditions. The RVS-3 loop facility enables the performance of irradiation experiments in a wide range of operational parameters limited by maximum parameters as listed below.

Maximum Parameters

The loop is a closed stainless steel system with typical technological auxiliary systems. The experimental equipment of the loop consists of:Description

Active (in-pile) channel situated in the reactor core for irradiation of materials samples

• Out-of-pile test section providing the same thermal-hydraulic parameters as in-pile channel
• Electrically heated rods for corrosion tests of materials
• Possible loading facility for investigation of corrosion fatigue at low-cycle load and SSRT test
• Filtration system equipped with mechanical and ion exchange filters
• Make-up water system for water environment preparation and dosing into the loop system
• Sampling system for water sampling from different points of the loop
• High-temperature sensors for water chemistry monitoring

Experimental possibilities

• Investigation of degradation and corrosion behaviour of structural materials’ mechanical properties under irradiation and PWR/VVER water chemistry and thermal-hydraulic conditions
• Investigation of behaviour (corrosion, hydriding) of fuel cladding materials under influence of irradiation, thermal flux and water chemistry conditions
• Investigation of radioactivity transport and behaviour under PWR/VVER conditions 
• Testing of high-temperature, high-pressure sensors for water chemistry monitoring
• Research of corrosion products transport, influence of water environment
• High-temperature monitoring of water regimes testing

RVS-3 Loop Chart

RVS-3 Chart