Engineering task plan for rotary mode core sampling exhausters CAM high radiation interlock
The Rotary Mode Core Sampling (RMCS) system is primarily made up of the Rotary Mode Core Sample Trucks (RMCST) and the RMCS Exhausters. During RMCS operations an Exhauster is connected to a tank riser and withdraws gases from the tank dome vapor space at approximately 200 Standard Cubic Feet per Minute (SCFM). The gases are passed through two High Efficiency Particulate Air (HEPA) filters before passing out the exhaust stack to the atmosphere. A Continuous Air Monitor (CAM) monitors the exhaust gases in the exhaust stack for beta particle and gamma radiation. The CAM has a high radiation alarm output and a detector fail alarm output. The CAM alarms are currently connected to the data logger only. The CAM alarms require operator response per procedure LMHC 1998 but no automatic functions are initiated by the CAM alarms. Currently, there are three events that can cause an automatic shut down of the Exhauster. These are, Low Tank Pressure, Highnow Stack Flow and High HEPA Filter Differential Pressure (DP).
- Research Organization:
- HNF Hanford Site (US)
- Sponsoring Organization:
- US DOE Office of Environmental Management (US)
- DOE Contract Number:
- AC06-96RL13200
- OSTI ID:
- 782289
- Report Number(s):
- HNF--3663--REV0
- Country of Publication:
- United States
- Language:
- English
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