GERB pipework viscous dampers are highly effective viscous – elastic elements. The stiffness and damping coefficients of these ones are strongly dependent on the working temperature of the fluid. It is a crucial problem of nuclear power plants if viscous dampers are installed inside the hermetic zone. Circulation of the air due to ventilation system represents either heating or cooling of the damper surface and finally can influenced, the damper reliability. This problem has been solved for the Armenian NPP Metsamor. Results are presented.
Volume Subject Area:
Seismic Engineering
Topics:
Dampers,
Temperature,
Nuclear power stations,
Cooling,
Damping,
Fluids,
Heating,
Piping systems,
Reliability,
Stiffness,
Ventilation
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Copyright © 2009
by ASME
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