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- Ocean current tech improving – ocean energy promising
- Good – Huge amounts of energy
- Ocean current technology will provide huge amounts of energy
- Ocean Current Energy reliable and provide massive amounts of energy
- Ocean Currents can provide a huge amount of energy
- Ocean Current Energy offers great energy potential
Ocean Current TurbinesGood - GeneralOcean Current Turbines powerful, clean, and safeMORENO, et al 2008 Natalia MORENO, Roger SALLENT, Alejandro ESPI , Dixiao BAO, & Yohann TEILLET, OCEAN CURRENT’S ENERGY: How to produce electrical energy thanks to the marine currents?; University of Gävle (Swedish University); http://www.exergy.se/goran/hig/re/08/ocean.pdf; Accessed June 25, 2014// The ocean currents energy has very small environmental impact. There is little danger to marine life due ¶ to the slow rotation speed of the turbine and electricity is generated with zero emission. It has not any visual ¶ impact such as the wind energy and it produces no emissions because it does not need additional fuel. The only ¶ cost is the initial high investment¶ 10¶ . ¶ The potential of tidal and ocean current power to be the world’s primary source of bulk renewable energy ¶ can be appreciated by considering the following facts: ¶ Seawater has 835 times the density of air so that ocean current turbines can produce much more power ¶ than a windmill of the same diameter. ¶ For a given area: solar produces kW, wind produces MW and ocean currents produce GW. ¶ The oceans cover 71% of the earth’s surface with tidal flows and currents on all coastlines as opposed to ¶ the limited sites for conventional hydro dams. ¶ Based on preliminary surveys the global ocean energy resource is estimated at over 800,000 MW. Ocean current tech improving – ocean energy promisingJames Ayre 4/04/13 “Harnessing Ocean Current Energy — Promising New System Developed”; Clean Technica; James Ayre [writer on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy]; http://cleantechnica.com/2013/07/04/ocean-current-energy/; Accessed June 26, 2014 Ocean currents are a very promising-looking source of renewable energy, but the technology for capturing ocean current energy and using it to create electricity hasn’t matured yet. However, that may soon change — a new ocean current harnessing system capable of working in deep waters has been developed by researchers at the Universidad Politécnica de Madrid, and a prototype has already been successfully tested. The new experimental prototype — created within the framework of the PROCODAC-GESMEY project — has successfully met the goals of the researchers: it’s cheaper to construct, install, and maintain than current designs; it can produce the expected amount of energy; it can be maneuvered by remote control; it can operate in relatively deep waters; and it’s affordable enough for “a medium sized shipyard” to purchase, as the researchers put it.¶ The prototype — created in collaboration with the Astilleros Balenciaga company and the Fundación Centro Tecnológico Soermar — is one-tenth the size that a potential “industrial size” 1MW unit would be. The prototype is also accompanied by a newly designed underwater buoy capable of operating in areas of 40 meters of depth.¶ ¶ The Universidad Politécnica de Madrid explains the new design:¶ Today, to harness energy is an issue of interest, particularly those related to sea. The first generation of systems of harnessing energy from ocean currents was only feasible in areas of maximum depth of 30-50 meters (because the generators were joined at the bottom) and its maintenance was expensive. Consequently, second-generation systems came out: anchoring systems with diverse solutions that allow us a submerged operation with the possibility to put afloat the main elements for its maintenance. The tested prototype of the GESMEY project belongs to these second-generation systems.¶ The main unit of the prototype includes, as we can see on the image, a structure of stainless steel with a central body and three peripheral parts joined by arms. The generator, the multiplier, and the instrumentation system are inside while the rotor that captures ocean currents is outside.¶ During the development of the project, tests of integration and the tune-up were conducted in the LEEys Lab of the ETSIN and at the shipyard. They also conducted sea trials divided into tests of maneuvers and trailer. The project was complemented with a research on hydrodynamics and structures as well as maneuvers and energy control. These studies were embodied in various numerical simulations.¶ The researchers will next be working on the creation of a larger prototype with potential performance improvements.¶ While this new prototype/research is focused entirely upon harnessing the energy of ocean currents, there are actually quite a few ways to harness the incredible and renewable power of the ocean — waves, tides, salinity, temperatures, etc. It’s been estimated that as an energy resource, the world’s oceans could easily supply all of the energy currently used by humans many times over. Just something to keep in mind….¶ Good – Huge amounts of energyOcean current tech will provide huge amounts of energyOcean Current Energy ‘14 “What is Ocean Current Energy”; Ocean Energy Council, Inc. http://www.oceanenergycouncil.com/ocean-energy/ocean-current-energy/; Accessed June 25, 2014// One of the primary advantages of this technology is the energy density. While solar and wind systems are well-suited for remote off grid locations, ocean energy is ideal for large-scale developments in the multiple gigawatt range. Sea water is 832 times as dense as air, providing a 5 knot ocean current with more kinetic energy than a 350 km/h wind. According to Devon Girard, The Blue Energy Power System acts as a series of underwater windmills exposed to daily hurricane forces. The tremendous volume and density of ocean currents allows our technology to satisfy large electricity demands efficiently. Ocean currents are one of the largest untapped renewable energy resource on the planet. Preliminary surveys show a global potential of over 450,000 MW, representing a market of more than US$550 billion. Ocean current technology will provide huge amounts of energyOcean Current Energy 2014 “What is Ocean Current Energy”; Ocean Energy Council, Inc. http://www.oceanenergycouncil.com/ocean-energy/ocean-current-energy/; Accessed June 25, 2014// One of the primary advantages of this technology is the energy density. While solar and wind systems are well-suited for remote off grid locations, ocean energy is ideal for large-scale developments in the multiple gigawatt range. Sea water is 832 times as dense as air, providing a 5 knot ocean current with more kinetic energy than a 350 km/h wind. According to Devon Girard, The Blue Energy Power System acts as a series of underwater windmills exposed to daily hurricane forces. The tremendous volume and density of ocean currents allows our technology to satisfy large electricity demands efficiently. Ocean currents are one of the largest untapped renewable energy resource on the planet. Preliminary surveys show a global potential of over 450,000 MW, representing a market of more than US$550 billion. Ocean Current Energy reliable and provide massive amounts of energyPeter Danko June 4, 2014 “Ocean Current Energy Getting a Test Site in Florida”; National Geographic; Peter Danko (writer); http://energyblog.nationalgeographic.com/2014/06/04/ocean-current-energy-getting-a-test-site-in-florida/; Accessed June 26, 2014 Though not nearly as far along toward commercialization, ocean current energy is a close cousin of tidal stream energy. With each, the goal is to capture the energy of flowing water using hydrokinetic energy converters, which (so far) often look and operate a lot like wind turbines. Water moves much more slowly than wind, but makes up for that with its greater density.¶ Currents come with complexities that will challenge device developers, including seasonal and diurnal variations, but the “continuous, significant flow, 24 hours a day, seven days a week, 365 days a year,” is irresistible, SNMREC Director Susan Skemp said in an interview. “That’s the lure – the resource,” she said.¶ The Florida Current, the beginning stage of the Gulf Stream on its long glide across the Atlantic, is robust – the National Oceanic and Atmospheric Administration says that “off the Atlantic seaboard of the United States, the Gulf Stream flows at a rate nearly 300 times faster than the typical flow of the Amazon River,” and BOEM points to an estimate that “taking just 1/1000th the available energy from the Gulf Stream would supply Florida with 35 percent of its electrical needs.”¶ The current flows strongest at the surface, but in order to avoid ships and other ocean users, developers are looking to place their devices well under water. If ocean current energy is ever commercialized, the energy converters will be tethered to the ocean floor, leaving the surface undisturbed.
World Ocean Review; Renewable Energy; http://worldoceanreview.com/en/wor-1/energy/renewable-energies/; Accessed June 26, 14 Ocean current energy can also be harnessed using submerged rotors which are driven by the motion of the water. It has been estimated that ocean current power stations and tidal power plants together could harness several 100 terawatt-hours of electricity per year worldwide.¶ For some time now tests have been carried out on some rotor concepts, such as the Seaflow system, the prototype of which commenced operations off the English coast in 2003. Its successor, SeaGen, is now rotating in the Strangford Narrows off the Irish coast. Under this concept two rotors are mounted on the tower of the plant. This increases the electricity yield and balances out the high construction and start-up costs.¶ Such ocean facilities face much harsher stresses from currents and wave movements than wind turbines, for example, and for this reason extensive endurance testing is called for. Nonetheless, the SeaGen technology is closely based on the wind turbine model. The blade angle and rotational speed can be adjusted to suit the prevailing current. Other concepts focus on fixed, non-adjustable systems. Ocean Current Energy offers great energy potentialJorge Chapa 12/10/07 “Underwater Ocean Turbines Will Generate Renewable Energy”; Inhabitat; Jorge Chapa (sustainable architect); http://inhabitat.com/underwater-power-generating-ocean-turbines/; Accessed June 26, 2014 One the greatest untapped energy resources in the world is the motion of the ocean. And while floating wind turbines and wave-powered generators are being explored throughout the world, there still remains one largely untapped power source, the underwater ocean currents. Well researchers at the Center of Excellence in Ocean Energy Technology have developed what they believe is a technology to allow them to use the Gulf Stream currents that could conceivably cover all of Florida’s energy needs. The idea is to have underwater turbines placed right in the middle of the Gulf Stream current. The turbines are designed to be about 100 feet in diameter. These will be connected to a buoy that holds the electricity generating equipment. The gulf stream carries billions of gallons per minute, so the impact of these turbines would be minimal if negligible to the current itself. Directory: file -> view view -> Western Europe after wwii view -> Author study: paul fleischman view -> Qpa1 7ela study Guide view -> Arctic Oil/Gas Neg view -> November 1970 Approximately 150,000-500,000 deaths Bhola Cyclone Bangladesh view -> Grade Level: 6 Unit of Study: Caribbean glce view -> Citation: Duffield, Katy view -> Table of Contents Lesson # view -> Chinese Wind Energy Disad Download 0.89 Mb. Share with your friends:
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