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NEWSCIENCENEWSCIENCENEWSCIENCE need to be imported. Other materials, of course, could be used, but the schematic for the design would be different. Simple is better, it is said, and fewer parts and bearings bring down the cost of building and also repair. WaveReaper set-up and action This is a simple schematic showing buoys, wire and a one-way bearing connected together. [See fig. 5.] The wire is connected to a chain in the end, which works on a gearwheel sitting on a one-way bearing mounted on an axle. This translates the pulling force of the wire to a circular movement. Wire of 4-mm stainless steel is good, providin; ‘ : ™ a lifting ability of approximately 300 ke Figure 4. Schematic of 100-300 kW WaveReaper™ plant. before it breaks. make it even out slack in the wire. The temporarily stores the momentum The plastic that's best to use is PVC, flywheel is mounted and a pulley drives gained from the waves. which has high strength and is also light _ the generator evenly. Because of its design, the and cost-effective. Of course, the UV A one-way bearing with pulley and WaveReaper is always self-adjusting for light from the Sun will affect it in the wire but with bigger loads, chain and wave height, tidal shifts and higher or long run, but the part that is in the water gearwheel is an option. A one-way lower water levels due to shifting should be somewhat protected from UV _ bearing can be seen in the example of a_ weather patterns. No adjustment is ears an nandad. tha WarnaDaannne ta alearran Winealas it eatatan feaaler in ann J make it even out slack in the wire. The temporarily stores the momentum flywheel is mounted and a pulley drives _ gained from the waves. the generator evenly. Because of its design, the A one-way bearing with pulley and WaveReaper is always self-adjusting for wire but with bigger loads, chain and wave height, tidal shifts and higher or gearwheel is an option. A one-way lower water levels due to shifting bearing can be seen in the example of a weather patterns. No adjustment is bicycle; it rotates freely in one direction needed: the WaveReaper is always but grips in the other direction and _ balancing itself out to optimal level in transfers force. This principle is used in _ the ocean. the WaveReaper, making it simple and It's time for things to change in the cost-effective. world's energy sector. The oil-based A wave's up-and-down movement is economy is gone. Let's all accept it, and translated to rotating movement, suited build a better world, feed the hungry, for a generator of choice. The barrels, cure the sick and, of course, stop of course, will jump up and down in polluting the environment with oil- random patterns; this will add to aneven _ based, stone-age technology. 0 movement of the generator axle and its flywheel. As soon as a wave has energy (Source: Edited from the web page to contribute, it will transmit its force to http://www.wavepartner.eu/page_ the wire and to the axle. The flywheel 1219330357093.html) 18 Kw prototype Pulley Oneway bearings and gear wheels Oil tank for lubrication of gears Flywheel temporarily stores the momentum gained from the waves. Because of its design, the WaveReaper is always self-adjusting for wave height, tidal shifts and higher or lower water levels due to shifting weather patterns. No adjustment is needed: the WaveReaper is always balancing itself out to optimal level in the ocean. It's time for things to change in the world's energy sector. The oil-based economy is gone. Let's all accept it, and build a better world, feed the hungry, cure the sick and, of course, stop polluting the environment with oil- based, stone-age technology. 0 rays. The flywheel is mounted on the axle to collect, even out and store the momentum produced by the lifting barrel. This will even out and smooth the turnings of the axle to the generator, which is driven by a pulley, which will give it the correct rpm. A simple brake, which can never wear down, is also planned, in which case a constant current generator or a special electronic device is not used. Pipes are mounted on the wire, which means we can haul each device in and out without leaving the shoreline. With this configuration, if one set of barrels malfunctions, only 10 per cent of the plant's output is lost. It can be hauled in to the shore and serviced with ease, without complicated offshore operations. With the wire coming to the generator housing, a chain is mounted to the wire, which drives the gear wheel and the one-way bearing, which makes the chain draw when a wave raises the barrel but lets it spin back freely when the wave height goes down. Also, a small weight is connected to the chain to (Source: Edited from the web page http://www.wavepartner.eu/page_ 1219330357093 html) 18 Kw prototype Pulley Flywheel NEXUS ¢ 47 Figure 4. Schematic of 100-300 kW WaveReaper™ plant. Figure 5. Schematic of 18 kW WaveReaper™ prototype. OCTOBER — NOVEMBER 2008 www.nexusmagazine.com