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News & Media

Latest ITER Newsline

  • Component delivery| A jewel in a box

    Sailing under the flag of Germany, the Regine is a mighty ship, strengthened for heavy cargo and equipped on its portside with two 750-tonne on-board cranes. Ha [...]

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  • Education | Make your own tokamak with 3D printing!

    It's not Lego, but it is definitely 'hands-on.' To offer a tangible device to illustrate the workings of magnetic confinement fusion in a tokamak, the ITER Orga [...]

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  • Worksite | Europe's Fusion for Energy is building the ITER installation

    Anyone driving to ITER can take full measure of the enormity of the project a few kilometers before reaching the destination. Gigantic cranes can be seen from a [...]

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  • Disruption mitigation | Experts in plasma disruptions gather online

    On 20-23 July, 120 international experts participated in the 1st IAEA Technical Meeting on Plasma Disruptions and their Mitigation, jointly organized by the Int [...]

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  • Start of assembly | World dignitaries celebrate a collaborative achievement

    Due to the constraints imposed by the COVID-19 pandemic, the crowd in the ITER Assembly Hall was small. But thanks to live broadcasting and video feed, the audi [...]

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Of Interest

See archived entries

Cryoplant

A vertical displacement event

Three vertical storage tanks have been installed since last week outside of the cryoplant. The operation requires two powerful cranes working in tandem but also the strength of many arms ...

Installed vertically because of space constraints, six identical tanks will store 380 cubic metres of gaseous helium each at a pressure of 22 bars. (Click to view larger version...)
Installed vertically because of space constraints, six identical tanks will store 380 cubic metres of gaseous helium each at a pressure of 22 bars.
There are 36 semicircular openings at the base of each tank, corresponding to 36 steel rods deeply anchored into the 2.5-metre thick concrete platforms that have been built to receive them. Each tank stands 20 metres high and weighs 150 tonnes.

As the crawler crane seize a tank by its "ears" (two cylindrical protrusions called "trunnions" located at the upper end of the component), and as the telescopic crane slowly lifts its lower end, one wonders how the required alignment will be achieved.

One hour later, the question can be answered. The crawler crane positions the tank vertically and leaves it hovering a few centimetres above the rods. Three men weigh in with all their strength on the bottom rim: a few pushes to the right, a few pulls to the left, a tilt inward and a small rotational movement and everything falls into alignment. The crane operator can then carefully lower the tank so that all 36 rods slide into their corresponding holes, ready to be bolted.

Last Wednesday's operation was a spectacular first. By the end of the week it was routine and as of today's Newsline, three tanks are in place.

Installed vertically because of space constraints, the six tanks, procured by Europe, will each store 380 cubic metres of gaseous helium at a pressure of 22 bars. They will act as buffers for certain phases of operations and also as storage when ITER is not running.

Read a full report on the European Domestic Agency website.


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