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Laser Cutting Reduces Waste Leakage During Reactor Decommissioning | Research & Technology | May 2021

manual23 by manual23
May 31, 2021
in Technology
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Laser Cutting Reduces Waste Leakage During Reactor Decommissioning | Research & Technology | May 2021
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HANNOVER, Germany, Could 31, 2021 — A laser-based slicing method is ready to cut back hazardous waste leakage by as much as 95%, giving it software within the decommissioning of nuclear reactors. Researchers at Lazer Zentrum Hannover (LZH) developed and validated the method, efficiently dismantling reactors underwater.

In direct dismantling, a reactor’s parts are disassembled on web site inside the cooling water. What makes the strategy developed by the Underwater Know-how Group at LZH so efficient is that in laser slicing, the soften from the joint stays connected to the sheet through the slicing course of.

Laser optics developed by LZH for underwater disassembly of power plant components. Courtesy of LZH.


Laser optics developed by LZH for underwater disassembly of energy plant parts. Courtesy of LZH.


The researchers demonstrated the strategy on the Hannover Underwater Know-how Heart of Leibniz College. They minimize stainless-steel sheets at a depth of 4 m.

To attain this activity, the crew developed and constructed laser optics optimized for slicing energy plant parts underwater. The experiments had been carried out with a cell disk laser from LZH spinoff Laser on Demand GmbH.

As a part of the validation, the LZH’s Underwater Know-how Group together with its companion Orano GmbH elevated the method from laboratory scale to near-industrial situations, akin to Know-how Readiness Stage 6.

In at present used processes that use sawblades or waterjets, supplies from the joint and extra abrasives might be transferred into the cooling water, which then have to be decontaminated, including vital price.

Successful test in the Underwater Technology Center Hanover, at a water depth of four meters, the scientists could successfully cut through stainless steel sheets. Courtesy of LZH.


Profitable check within the Hannover Underwater Know-how Heart, at a water depth of 4 m, the scientists might efficiently minimize by way of stainless-steel sheets. Courtesy of LZH.


The crew optimized its parameters for laser energy, fuel strain, and slicing pace, which diminished the load loss when slicing stainless-steel sheets by as much as 95%. Correspondingly, much less secondary waste passes into the water. Members reported that the strategy labored with comparable ranges of effectiveness with zirconium alloys, one other widespread materials utilized in reactor parts.

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Tags: CuttingDecommissioningLaserLeakageReactorReducesresearchTechnologyWaste
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