The Anonymous Widower

Huisman Weighs Into Storage

The title of this post is the same as thia article in RENews.

This is the first two paragraphs.

Edinburgh start-up Gravitricity is teaming up with Dutch lifting specialist Huisman to develop gravity-fed energy storage projects at the sites of disused mines in Scotland.

The partners plan to develop a 250kW demonstration project and test it early next year, and ultimately aim to scale up to 20MW commercial systems.

I think that this idea has a chance to be a success.

As an aside, one of my first experiences of industry was working at Enfield Rolling Mills. On one of their rolling mills, there was a ninety-three tonnes two-metre ring flywheel, which was attached to the mill. The flywheel was spun to 3000 rpm, before the copper wirebar was passed through the mill. You could see the flywheel slow, as it passed it’s energy to the mill, as it turned the wirebar into a thinner strand of copper, so that it could be drawn into electrical cable.

I think, that flywheel had an energy storage of over a MwH. Shimatovitch, the Chief Engineer reckoned that if had come of its mountings at full speed, it would have gone a mile before the houses stopped it.

March 22, 2018 - Posted by | World | , ,

2 Comments »

  1. If the radius of the flywheel was 2m then I calculated that the energy stored was ~125MJ, if that was the diameter about 40MJ. Well short of a MWhr (3t6J). E&OE.

    Comment by Mark Clayton | March 22, 2018 | Reply

  2. The flywheel was a ring with a diamter of two metres. I used a calculator on the web.

    Being a ring increases the enerrgy.

    Comment by AnonW | March 22, 2018 | Reply


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