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SEARASER
Exciting new British invention for 2008
Wave energy converter providing clean renewable energy on demand.
The thinking behind the “SEARASER” by it’s British Inventor ALVIN SMITH.
Nuclear energy is by far the most reliable form of electricity production, but the clean up over the following decades may out weigh the early fruitful years of production.
Hydro energy for the production of electricity is the next most efficient and has the advantages of being a clean, storable and controllable energy source, this gives it an advantage over direct wind systems. However most hydro systems in the western world have been exploited to their full potential, therefore future demand will not be satisfied by hydro unless new hydro energy forms become available.
However, if we move water to higher ground or a hilltop we could have a controllable hydro system similar to the Welsh and Scottish pumped storage system’s but utilising RENEWABLE ENERGY and not fossil fuels to pump the water up to the head.
So how do we get water to run up hill?
I have invented a wave energy converter (wec) which works by using wave displacement to lift a float attached to a piston and in the waves following trough, gravity to push the piston back down. It is different from other wec’s as it is tethered to a weight on the sea bed by a single flexible tether but utilises a double acting piston, therefore producing volumes of pressurised water in both directions of the piston.
Another age old problem is how to accommodate the pump at all levels of a rising and ebbing tide.
I have incorporated in the SEARASER pumps design a station which adjust’s itself and locks to any height of the tide.
So now we have a wave (or swell) pump, to pump lake water (if large enough for waves) or sea water to a hilltop, utilising renewable energy, 100% clean because it uses the water that it is immersed in and pumps as the stored potential energy, and also the water it pumps lubricates the pump so no oils are used.
If high ground is not available or not suitable to provide storage for the water to the impulse turbines, the pressurised water direct from wave pumps via an accumulator, will be of sufficient pressure to drive the same impulse turbine generators near sea level, either land based or offshore rigs, or indeed afloat. The disadvantage of no high head storage is no guarantee of on demand energy!
The Japanese Okinawa Yanbaru project web site:- http://seawaterpower.com/mp-sps.html shows how the system can work.
A scooped out and lined hilltop does not involve building a dam, it also can only be seen from above and could be very pleasant to the eye and be a source of food and habitat for breeding wildlife if properly landscaped and managed. All machinery can be subterranean, and no electrics at all need be at sea which makes maintenance much more viable.
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Patent Pending
GB 0701384.0
PCT / GB 2007 / 004366
Alvin Smith