The future of wind turbines? Bizarre-looking funnel produces SIX times more energy than traditional designs

Wind turbines may be considered an eco-friendly way to generate electricity, but they're heavily criticised for blotting the landscape and killing hundreds of birds.

Minnesota-based Sheerwind has designed a bizarre-looking alternative to these bladed systems that uses a series of funnels and tubes.

In its Invelox turbine, winds as low as 2mph are directed into a funnel and through a tube to the turbine’s generator on the ground.

By channelling this wind through a passage that narrows at the end it creates a ‘jet effect’, which increases the wind’s velocity, but lowers the pressure.

This technique creates kinetic energy and is called the Venturi Effect. This kinetic energy turns the generator.

Sheerwind claims that due to this unique Venturi-based system, the turbine works with wind speeds as low as 2mph.

It can also produce 600 per cent more electrical energy (kWh) than blade systems by expanding the range of speeds at which it can operate.

Water-based systems already use the Venturi Effect, yet this is the first commercial use of it for converting wind energy.

Sheerwind also states its funnel system is scalable, meaning smaller versions could be placed on both agricultural and hobby farms, industrial estates and even in back gardens.

It could also reduce the threat blade systems have on birds and bats.

Customers can request more details and fill in a form, specifying what kind of wind tower they want, at Sheerwind's website.

'Conventional wind turbines use massive turbine generator systems mounted on top of a tower. Invelox, by contrast, funnels wind energy to ground-based generators,' said Sheerwind.

'Instead of snatching bits of energy from the wind as it passes through the blades of a rotor, wind is captured with a funnel and directed through a tapering passageway that naturally accelerates its flow.
'This stream of kinetic energy then drives a generator that is installed safely and economically at ground level.’

Sheerwind continued that the unit is 50 per cent shorter than traditional wind towers and uses a ground-based turbine with blades that are 84 per cent smaller.

Fewer generators are needed to generate equivalent energy, so equipment and maintenance costs are lower, too.

Sheerwind even claims Invelox is ‘competitive with natural gas and hydroelectric generation’ because it costs less than a penny per KwH.

Video: http://www.dailymail.co.uk/sciencetech/article-2558377/The-future-wind-turbines-Bizarre-looking-funnel-produces-SIX-times-energy-traditional-designs.html#ixzz2tDuBH5Tc 

Could limitless clean power be created by LASERS? Breakthrough experiment first to create excess energy from fusion reaction

California scientists have taken a key step forward in harnessing nuclear fusion, which could one day lead to clean and limitless energy.

Fusion, the process that powers the Sun and other stars, entails forging the nuclei of atoms to release energy, as opposed to splitting them, which is fission - the principle behind the atomic bomb and nuclear power.

However, researchers have have run up against a giant hurdle until now, finding the energy yield from the reaction has been dwarfed by the vast amounts of energy needed to trigger the process.
But, in lab experiments described by scientists in the United States, major progress has been made in overcoming this obstacle.

Reporting in the journal Nature, researchers said they were the first to tease more energy out of a fusion reaction than had been absorbed by the fuel used to spark it.

They fixed 192 laser beams onto a spot narrower than the width of a human hair to generate enough energy to compress a tiny fuel-containing capsule to a 35th of its original size.

Lasting less than a billionth of a second, the reaction put out the equivalent of the energy stored in two AA batteries (some 17,000 joules) in their latest experiment in November 2013.

Though 'modest', according to the team, the output was higher than the estimated 9,000-12,000 joules of energy taken up by the fuel.

'This is closer than anyone has gotten before' to generating viable fusion energy, the study's chief author Omar Hurricane of the US government-run National Ignition Facility (NIF) in California said.
The yield was 10 times greater than previously achieved.
There are qualifiers, though.

It was not a sustained reaction, an eagerly sought moment called ignition.
And it still does not answer the efficiency challenge of releasing more fusion energy than is consumed overall.

In this case, the lasers put out about 1.9 million joules of energy - the equivalent energy in a small car battery - of which only 9,000-12,000 joules were absorbed by the fuel.

'Only something like one percent of the energy that we put in from the laser ends up in the fuel right now, maybe even less,' said co-author Debbie Callahan.
'There is a lot of room for improvement.'

The method needs to be refined and the yield boosted 100 times 'before we get to the point of ignition,' Hurricane added.

Read more: http://www.dailymail.co.uk/sciencetech/article-2558048/Nuclear-fusion-breakthrough-reseachers.html#ixzz2t9OspdSm