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Is this the Energy Harvesting breakthrough the World's been waiting for?
DrLucyRogers
3
I am an inventor, engineer, writer and presenter. Other stuff: Royal Academy of Engineering Visiting Professor of Engineering: Creativity and Communication at Brunel University London; Fellow of the Institution of Mechanical Engineers and have a PhD in bubbles; Judge on BBC Robot Wars.

Comments

April 14, 2016 09:18

Yes, energy harvesting is generally only useful where you only need a very small amount of energy compared to the source (operating a light switch or powering a watch) or where the motion you are harvesting from is itself unwanted such as from a shock absorber, regenerative breaking or the pitching and rolling of a ship at sea. Given the essential requirement for mass in this device, I think the marine application is the only one that comes to mind - here it has the useful side-effect of damping unwanted pitching and rolling of the ship.

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March 28, 2016 21:37

while there is lots of "wasted" energy harvesting in some applications comes at a cost.

ie wearing an energy harvesting device "consumes" power from the wearer in a number of ways.

They add weight to be carried, which in its self requires more energy to move it.
the very act of absorbing energy to convert to another form (mechanical to electrical) requires an input of power it may only be a small load on the hoist but it is still a load that needs to be powered. its just that the amounts of energy been harvested are very small and not noticed but up the load and up goes the energy input.

Energy harvesting would be most effective in places where a device to perform a function produces a spurious movement or heat ie vibrations in an reciprocating engine or heat produced in a shock absorber.

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March 26, 2016 19:33

WITT have raised over £1.1 Million so far on their equity raise. See http://www.crowdcube.com/wittenergy for more details.

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