Research Article
Design Change and Operational Consideration of the HVAC System during Nuclear Power Plant Decommissioning
Table 3
HVAC operation strategies for decommissioning.
| System | Transition period | Decommissioning phase |
| RCB HVAC and purge | Natural ventilation, intermittent purge (with recirculation operation using 2 RCFCs and recirculation fans) | Recirculation operation, entire ventilation operation (continuous or intermittent purge), partial ventilation operation (portable temporary HVAC units) | FHB HVAC | Normal operation (same as normal operating NPP) | ā | MCR HVAC | Continuously forced ventilation (using supply and exhaust fan without recirculating flow), natural ventilation, temporary HVAC unit operation | ā |
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