| 词条 | SeaGen |
| 释义 |
| name = SeaGen | name_official = | image = SeaGen installed.jpg | image_size = | image_caption = Commercial tidal stream generator — SeaGen — in Strangford Lough. The strong wake shows the power in the tidal current. | image_alt = | location_map = Northern Ireland | location_map_size = | location_map_caption = Location of SeaGen in Northern Ireland | location_map_alt = | coordinates = {{coord|54|22|7.2|N|5|32|45.8|W|region:GB_type:landmark|display=inline,title}} | coordinates_ref = | country = Northern Ireland, United Kingdom | location = Strangford Narrows between Strangford and Portaferry | status = O | construction_began = | commissioned = April 2008 | decommissioned = Spring 2017 | cost = | owner = | operator = | tide_technology = | tide_tsg_type = | tide_barrage_height = | tide_barrage_length = | tide_barrage_width = | tide_crosses = | tide_channel_width = | tide_channel_speed = | tide_dtp_length_perp = | tide_dtp_length_para = | tide_range = | ps_units_operational = | ps_units_manu_model = | ps_units_uc = | ps_units_planned = | ps_units_cancelled = | ps_units_decommissioned= | ps_electrical_capacity = 1.2 MW | ps_electrical_cap_fac = | ps_annual_generation = | website = | extra = }}SeaGen was the world's first large scale commercial tidal stream generator.[1][2][3] It was four times more powerful than any other tidal stream generator in the world at the time of installation.[4] The first SeaGen generator was installed in Strangford Narrows between Strangford and Portaferry in Northern Ireland, in April 2008 and was connected to the grid in July 2008.[5] It generates 1.2 MW for between 18 and 20 hours a day while the tides are forced in and out of Strangford Lough through the Narrows.[6] Strangford Lough was also the site of the very first known tide mill in the world, the Nendrum Monastery mill where remains dating from 787 have been excavated. BackgroundMarine Current Turbines, the developer of SeaGen, demonstrated first prototype of tidal stream generator in 1994 with a 15 kilowatt system in Loch Linnhe, off the west coast of Scotland. In May 2003, the prototype for SeaGen, '{{visible anchor|SeaFlow}}', was installed off the coast of Lynmouth, North Devon, England.[6] Seaflow was a single rotor turbine which generated 300 kW but was not connected to the grid. SeaFlow was the world's first offshore tidal generator, and remained the world's largest until SeaGen was installed.[7]TechnologySeaGen generator weighs {{Convert|300|MT|LT|abbr=on}}.[3][8] each driving a generator through a gearbox like a hydro-electric or wind turbine. These turbines have a patented feature by which the rotor blades can be pitched through 180 degrees allowing them to operate in both flow directions – on ebb and flood tides. The company claims a capacity factor of 0.59 (average of the last 2000 hours). The power units of each system are mounted on arm-like extensions either side of a tubular steel monopile some {{convert|3|m|ft}} in diameter and the arms with the power units can be raised above the surface for safe and easy maintenance access.[1] The SeaGen was built at Belfast's Harland and Wolff's shipyards.[9] Environmental impactSeaGen has been licensed to operate over a period of 5 years, during which there will be a comprehensive environmental monitoring programme to determine the precise impact on the marine environment.[10] ProblemsDuring the commissioning of the system a software error caused the blades of one of the turbines to be damaged. This left the turbine operating at half power until autumn 2008. The incident is being investigated and MCT is confident it will not happen again.[11] Full power operation was finally achieved on 18 Dec 2008.[12] HistoryThe System was removed in 2017 [13], after Siemens sold the company and technology to rival Altantis Resources in 2015.[14] References1. ^1 {{Cite journal | last = Douglas | first = C.A. | last2 = Harrison | first2 = G.P. | last3 = Chick | first3 = J.P. | title = Life cycle assessment of the Seagen marine current turbine | url=https://commerce.metapress.com/content/l2525g3001286200/resource-secured/?target=fulltext.pdf&sid=vwpwqjm0htfuvn45hmy4wf45&sh=journals.pepublishing.com | format = PDF | year= 2008 | accessdate = 2008-07-10 | doi = 10.1243/14750902JEME94 | journal = Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment | volume = 222 | issue = 1 | pages = 1–12 | publisher= Professional Engineering Publishing}} 2. ^{{cite news | url=https://www.independent.co.uk/environment/green-living/the-rise-of-british-sea-power-799630.html | title=The rise of British sea power | publisher= The Independent | date=2008-03-23 | accessdate=2008-07-30}} 3. ^1 {{cite news | url= http://www.channel4.com/news/articles/science_technology/power+generation+the+new+wave/1907547 | title= Power generation: the new wave | author= Julian Rush | publisher= Channel 4 | date=2008-03-31 | accessdate=2008-07-30}} 4. ^{{cite news | url=http://news.bbc.co.uk/1/hi/northern_ireland/7233829.stm | title=Sea change for energy generation | author=Arthur Strain | publisher=BBC | date=2008-02-08 | accessdate=2008-07-10}} 5. ^First connection to the grid 6. ^1 {{cite news| url=http://www.technologyreview.com/Energy/21142/| title= Tidal Power Comes to Market. A large-scale tidal-power unit has started up in Northern Ireland| author=Brittany Sauser| publisher= Technology Review Inc., Massachusetts Institute of Technology| date=2008-07-29| accessdate=2008-07-30}} 7. ^{{cite web | url=http://www.berr.gov.uk/energy/sources/renewables/schools/case-studies/tidal/page23016.html | title=Case Studies for Schools: Tidal Power | publisher=Department for Business, Enterprise and Regulatory Reform | accessdate=2008-07-10}} 8. ^{{cite news | url= http://www.belfasttelegraph.co.uk/news/environment/worlds-first-as-16312m-turbine-installed- | title= World's first as £12m turbine installed in Strangford Lough | publisher= Belfast Telegraph | date=2008-03-31 | accessdate=2008-07-30}} 9. ^{{cite news | url=https://www.theguardian.com/environment/2008/mar/31/tidal.power | title= Tidal power comes to Northern Ireland | author=Henry McDonald | publisher= Guardian | date=2008-03-31 | accessdate=2008-07-30}} 10. ^{{cite paper |url = http://www.all-energy.co.uk/UserFiles/File/2007DavidErwin.pdf |title = Environmental monitoring, liaison and consultation concerning the MCT Strangford Lough Turbine |author = David G Erwin |format = PDF |accessdate = 2008-07-10 |deadurl = yes |archiveurl = https://web.archive.org/web/20081011132433/http://www.all-energy.co.uk/UserFiles/File/2007DavidErwin.pdf |archivedate = 2008-10-11 |df = }} 11. ^{{cite news | url= http://www.marineturbines.com/3/news/article/11/delay_in_commissioning_one_of_seagen_s_rotors/ | title= Delay in commissioning one of SeaGen's rotors | publisher= Marine Current Turbines | date=2008-07-22 | accessdate=2008-07-30}} 12. ^{{cite news|url=http://news.bbc.co.uk/1/hi/northern_ireland/7790494.stm|title=Tidal energy system on full power|date=2008-12-18|publisher=BBC|accessdate=2009-06-25}} 13. ^{{cite news | url=https://www.bbc.com/news/uk-northern-ireland-35416282 | title=Strangford tidal energy turbine to be removed | publisher=BBC | date=2016-01-27 | accessdate=2017-06-25}} 14. ^{{cite news | url=http://www.hydroworld.com/articles/2015/05/atlantis-strikes-deal-to-acquire-marine-energy-tech-company-from-siemens.html | title=Atlantis strikes deal to acquire marine energy tech company from Siemens | publisher=Hydro Review | date=2015-05-01 | accessdate=2018-02-05}} External links{{stack|{{Portal|Northern Ireland|Water|Renewable energy}}}}
2 : Tidal stream generators|Tidal power stations in Northern Ireland |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。