Analytical Solution to the Pneumatic Transient Rod System at ACRR

Fehr, Brandon Michael¹ 

[1]Georgia Inst. of Technology, Atlanta, GA (United States)

关键词: ACPR REACTOR;    VALVES;    NITROGEN;    PISTONS;    ANALYTICAL SOLUTION;    SOLENOIDS;    TANKS;    DISTRIBUTION;    PULSES;    FUEL RODS;    TRANSIENTS;    CYLINDERS;    REACTIVITY INSERTIONS;    ACCELERATION;    JOINTS;    VERIFICATION;    PNEUMATIC CONTROLLER;   

DOI  :  10.2172/1237408
RP-ID  :  SAND--2016-0920R
PID  :  OSTI ID: 1237408
Others  :  Other: 619034
Others  :  TRN: US1600309

美国|英语

来源: SciTech Connect

【 摘 要 】

The ACRR pulse is pneumatically driven by nitrogen in a system of pipes, valves and hoses up to the connection of the pneumatic system and mechanical linkages of the transient rod (TR). The main components of the TR pneumatic system are the regulator, accumulator, solenoid valve and piston-cylinder assembly. The purpose of this analysis is to analyze the flow of nitrogen through the TR pneumatic system in order to develop a motion profile of the piston during the pulse and be able to predict the pressure distributions inside both the cylinder and accumulators. The predicted pressure distributions will be validated against pressure transducer data, while the motion profile will be compared to proximity switch data. By predicting the motion of the piston, pulse timing will be determined and provided to the engineers/operators for verification. The motion profile will provide an acceleration distribution to be used in Razorback to more accurately predict reactivity insertion into the system.