The FABIS test facility consists of a boron tank, a reactor pressure vessel (RPV) tank, three electric heaters, piping, valves and measurement instrumentation.
The design pressure of the boron tank is 100 bar. There are two electric heaters installed inside the tank. One of them is installed to the lower part of the tank and the other to the upper part. The heaters consist of assembled electric heater rods. The total heating power of the lower heater is 25 kW and the reduced heating power 4 kW. The corresponding heating powers of the upper heater are 30 kW and 5 kW.
There are three pipelines connected to the boron tank. A safety valve is installed into the line that connects the top of the tank to the atmosphere. By using a bypass line parallel to the safety valve manual depressurization is possible. The blowdown line connects the boron tank to the RPV tank. The draining and the feed water lines are located in the bottom of the tank.
The feed water tank of the PACTEL facility is used as a RPV tank. The design pressure of the tank is 25 bar. An electric heater is installed to the lower part of the tank. The heater consists of assembled electric heater rods. The total heating power is 45 kW.
Four pipelines are attached to the RPV tank. The depressurization line, where a safety valve is installed, connects the upper part of the tank to the atmosphere. Also the manual depressurization line is connected to the top of the tank. The blowdown line is connected to the lower flange of the tank. The draining and the feed water lines are located in the bottom of the tank.
The blowdown line connects the boron tank and the RPV tank. There are two fast opening valves installed into the lower horizontal part of the pipeline. The opening of the valves will activate water injection from the boron tank to the RPV tank. A manual depressurization line is connected to the part of the pipeline between the valves. A multiple orifice device is installed into the upper horizontal part of the pipeline to reduce the pressure of the fluid injected into the RPV tank.
The test facility is equipped with temperature, pressure difference and absolute pressure measurements. Additional instrumentation includes strain gauges and valve position sensors.
© Copyright LUT University