Very large floating structure: Difference between revisions

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{{Short description|Artificial islands used as infrastructure in aquatic environments}}

{{use dmy dates|date=August 2015}}

[[File:Floating_runway.jpeg|350px|thumb|rightupright=1.35|A [[Mobilemobile offshore base]] ]]

[[File:Floating_runway.jpeg|350px|thumb|right| [[Mobile offshore base]] ]]

'''Very large floating structures''' ('''VLFSs''') or '''very large floating platforms''' ('''VLFPs''') are artificial islands, which may be constructed to create [[floating airport]]s, [[bridge]]s, [[breakwater (structure)|breakwaters]], [[pier]]s and [[Dock (maritime)|dock]]s, storage facilities (for oil and natural gas), [[Floating wind turbine|wind]] and [[Tata Power#Future projects|solar]] power plants, for [[Sea-based X-band Radar|military purposes]]<!-- example only; there may possibly be a more general article on large military floating structures? or not. -->, to create industrial space, emergency bases, entertainment facilities (such as [[casino]]s), recreation parks, [[Oil platform|mobile offshore structures]] and even for [[Seasteading|habitation]]. Currently, several different concepts have been proposed for building [[Ocean colonization|floating cities]] or huge living complexes.<ref>{{cite web|url=http://www.deltasync.nl/deltasync/index.php?id=1&L=1|title=DeltaSync floating city|publisher=Deltasync.nl|access-date=27 October 2014}}</ref> Some units have been constructed and are presently in operation.<ref>Japan constructed the Mega-Float (a floating runway in Tokyo bay); Japan also has floating fuel storage bases at Shirashima and Kamigoto Islands, and floating ferry piers at Ujina port (Hiroshima). Several very long floating bridges are currently in use; three are located near Seattle, Washington USA. The [[Floating Bridge, Dubai]], over the Dubai Creek, is 300 meters long. Singapore built the world’s largest floating performance stage at the Marina Bay, and is currently installing a mega floating fuel storage facility off Pulau Sebarok. South Korea is currently installing three floating islands on the Han River, to be used for convention centers, and another project at Seoul will function as hotel/convention center/customs site/quay. [http://www.sciencedirect.com/science/article/pii/S1877705811010848 Science Direct, ''Very Large Floating Structures'', p. 63]</ref>

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Pontoon-type VLFSs are also known in the literature as mat-like VLFSs because of their small draft in relation to the length dimensions. {{anchor|Mega-Float}}Very large pontoon-type floating structures are often called ‘mega-floats'. As a rule, the mega-float is a floating structure having at least one length dimension greater than {{convert|60|m}} Horizontally large floating structures can be from {{convert|500|to|5000|m}} in length and {{convert|100|to|1000|m}} in width, with typical thickness of {{convert|2|to|10|m|ft}}.

Water-based solar power involves harnessing solar energy to produce electricity using solar panels that are placed on water surfaces. This innovative approach allows for the efficient use of space, as it utilizes areas that might otherwise be underutilized, such as lakes, reservoirs, or ponds. While solar panels have traditionally been placed on rooftops or in large solar farms on land, the Floating PV Solar System represents a new frontier in renewable energy. These floating systems can be deployed on bodies of water like lakes and reservoirs, turning unused space into a clean energy resource. For get more information [https://esolarhub.com/floating-pv-solar-system/ read from here].

==Applications==

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===Floating LNG production facility===

The [[Shell floating LNG plant]] was constructed to process and [[cryogen|liquify]] offshore [[List of countries by natural gas production|natural gas]] into [[LNG|liquified natural gas]] for transport and storage.<ref name=shell20110611>{{cite web|url=http://www.shell.com/home/content/media/news_and_media_releases/archive/2010/flng_technology_greater_sunrise_29042010.html |title=Shell floating LNG technology chosen by joint venture for Greater Sunrise project - Shell Worldwide |publisher=Shell.com |access-date=10 June 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110529042931/http://www.shell.com/home/content/media/news_and_media_releases/archive/2010/flng_technology_greater_sunrise_29042010.html |archive-date=29 May 2011 }}</ref><ref name=":0">{{Cite web|url=https://www.shell.com/about-us/major-projects/prelude-flng.html|title=Prelude FLNG|website=www.shell.com|language=en|access-date=2019-09-19}}</ref> The Shell project was scheduled to begin processing gas in 2016.<ref name=wsj20140619>{{cite news|last1=Kelly|first1=Ross|title=GDF Suez, Santos Halt Innovative LNG Plan in Australia: Companies Say Offshore Conversion Project Not Commercially Viable|url=https://www.wsj.com/articles/gdf-suez-retreats-from-australian-floating-lng-project-1403167709|access-date=30 December 2014|work=Wall Street Journal|date=19 June 2014|quote=''The decision highlights the risks confronting Australian gas-export projects as they grapple with high costs and competition from North America and Russia, which are vying to provide Asian utilities with cleaner-burning fuels. Confidence in "floating" liquefied natural gas may also be diminishing—two years before a Royal Dutch Shell PLC-owned vessel is due to begin processing gas for the first time.''}}

</ref> In December 2018, Shell announced that the wells have been opened and the plant was ready to begin the initial phase of production.<ref>{{Cite web|url=https://www.shell.com.au/about-us/projects-and-locations/prelude-flng/prelude-e-news/prelude-starts-production.html|title=Prelude starts production|website=www.shell.com.au|language=en|access-date=2019-09-19|archive-date=26 May 2019|archive-url=https://web.archive.org/web/20190526132108/https://www.shell.com.au/about-us/projects-and-locations/prelude-flng/prelude-e-news/prelude-starts-production.html|url-status=dead}}</ref> In June 2019, it reached a significant milestone, shipping its first [[liquefied natural gas]] cargo to customers in Asia.<ref name=":0" />

==See also==