Trojan

Utilizing diamond wire technology PD was involved in planning and  cutting a large portal in the side of containment for the removal of the reactor vessel, pressurizer and steam generators.  In addition, diamond wire sawing was utilized in a multitude of configuration...

Zion Station RVI Equipment

Zion Reactor Components The Core Barrel component of the Reactor Vessel Internals is an irradiated cylindrical structure that was remotely cut under water.  The first phase included five (5) horizontal cuts through the Core Barrel and, where appropriate, the Thermal...

Humboldt Bay

PD Design’s relationship with Humboldt Bay began when Steve Larson conceived the Reactor Vessel Segmentation approach that was accepted by PG&E.  This plan was unique in that the reactor was encased with asbestos and “windows” needed to be cut in the vessel to...

NASA’s Plum Brook Research Reactor Vessel

Challenges NASA looked at decommissioning the reactor in the 1980′s, but elected to wait for radiation levels to drop before attempting disassembly. High radiation levels require flooding the reactor with water to shield the technicians. Underwater disassembly and...

Argonne National Laboratory’s EBWR

The Argonne EBWR was a fully operational prototype test reactor built to demonstrate an integrated plant design using direct cycle boiling reactor as a heat source. Initial operation began in 1956 and reached a maximum capacity of 100 MW (t) before it was de-fueled in...