{"id":356601,"date":"2022-02-23T12:00:00","date_gmt":"2022-02-23T11:00:00","guid":{"rendered":"https:\/\/innovationorigins.com\/?post_type=selected&p=356601"},"modified":"2022-02-23T12:00:00","modified_gmt":"2022-02-23T11:00:00","slug":"studying-how-wind-turbines-hold-up-to-ice-in-off-shore-farms","status":"publish","type":"selected","link":"https:\/\/ioplus.nl\/archive\/en\/selected\/studying-how-wind-turbines-hold-up-to-ice-in-off-shore-farms\/","title":{"rendered":"Studying how wind turbines hold up to ice in off-shore farms"},"content":{"rendered":"\n

In the great outdoors, ice can form, break, melt and refreeze many times over a season. Add the realities of a warming climate, and predicting how tons of frozen H2<\/sub>0 behave is tricky business.<\/p>\n\n\n\n

An international team from Aalto University, Delft University of Technology, and Siemens Gamesa Renewable Energy is working to find out just what happens when 200-metre tall wind turbines meet seriously frosty conditions, like those seen in Northern Europe\u2019s Baltic Sea, North America\u2019s Great Lakes or China\u2019s Bohai Bay. At the moment, off-shore wind farms are largely located in waters that don\u2019t enter deep freezes, notes Aalto University in a press release<\/a>.<\/p>\n\n\n\n

\u2018We don\u2019t actually know what kinds of force and pressure ice creates on off-shore wind turbines,\u2019 says\u00a0Arttu Poloj\u00e4rvi, assistant professor of ice mechanics at Aalto University. \u2018This is the first time anyone has carried out fully controlled model-scale laboratory experiments to find out.\u2019<\/p>\n\n\n\n

Ice is a serious concern <\/h3>\n\n\n\n

Ice-induced vibrations, the tiny or large shakes that occur when ice collides with infrastructure, are one of the major concerns for bringing the massive turbines into ice-infested areas.<\/p>\n\n\n\n

Aalto Ice Tank, the world\u2019s largest indoor ice basin measuring 40 by 40 metres, is one of the only places globally where researchers can customize huge slabs of ice and precisely test how they interact with these kinds of human-made structures.<\/p>\n\n\n\n

\u2018What\u2019s special about our experiments that we\u2019ve tested at -11 degrees Celsius to make sure the ice is strong and breaks realistically,\u2019 explains\u00a0Hayo Hendrikse, assistant professor in ice-structure interaction at TU Delft.<\/p>\n\n\n\n

Testing different scenarios <\/h3>\n\n\n\n

The physical testing was carried out with a 30:1-scale model pile, with the help of numerical modelling to simulate wind and other conditions a wind turbine would encounter at sea. In real-life terms, the load exerted from the ice during the experiments would be around 8 meganewtons \u2013 that\u2019s the combined thrust of 16 of the largest aircraft engines.<\/p>\n\n\n\n

\u2018The preliminary results show something that we haven\u2019t seen before in other structures, like lighthouses, channel markers, or oil and gas platforms. A wind turbine is very tall and slender and can move a lot; what we\u2019ve seen in our experiments seems to be a totally new type of ice-induced vibration,\u2019 says Hendrikse.<\/p>\n\n\n\n

The Shiver project<\/a> team is now working to create robust numerical models based on the data collected in order to test various scenarios that a wind turbine might encounter in chilly conditions over half a century of service. The data is available open access<\/a> and is now published in the journal Data-in-Brief<\/em>.<\/p>\n\n\n\n

The research has been funded by Siemens Gamesa Renewable Energy and TKI Wind Op Zee. Poloj\u00e4rvi has recently received funding from The Academy of Finland to lead further development and create a\u00a0modellingengine for forecasting future marine environmental and ice conditions. The aim is that the modelling engine will also aid in the\u00a0the design and optimisation of cold-region offshore wind farms.<\/p>\n\n\n\n

Also interesting: <\/strong><\/em>Mapping the reliability of a wind turbine \u2013 not something to do overnight<\/a><\/p>\n","protected":false},"author":2084,"featured_media":356603,"template":"","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[42],"tags":[57008,55692,76751,71634,53985,48124],"location":[53484],"internal_archives":[],"class_list":["post-356601","selected","type-selected","status-publish","has-post-thumbnail","hentry","category-sustainability-nl","tag-aalto-university","tag-delft-university-of-technology","tag-ice","tag-siemens-gamesa-renewable-energy","tag-wind-farms","tag-wind-turbines","location-finland-nl"],"blocksy_meta":[],"acf":[],"featured_img":"https:\/\/ioplus.nl\/archive\/wp-content\/uploads\/2022\/02\/YhgY7D3V-ciqyh6UG-6BfD4bFR-sea-g06d20ecb5_1920-1.jpg","coauthors":[],"author_meta":{"author_link":"https:\/\/ioplus.nl\/archive\/author\/mauro-mereu\/","display_name":"Mauro Mereu"},"relative_dates":{"created":"Posted 4 years ago","modified":"Updated 4 years ago"},"absolute_dates":{"created":"Posted on February 23, 2022","modified":"Updated on February 23, 2022"},"absolute_dates_time":{"created":"Posted on February 23, 2022 12:00 pm","modified":"Updated on February 23, 2022 12:00 pm"},"featured_img_caption":"\u00a9 Pixabay","tax_additional":{"category":{"linked":["Sustainability<\/a>"],"unlinked":["Sustainability<\/span>"],"slug":"category","name":"Categories"},"post_tag":{"linked":["Aalto University<\/a>","Delft University of Technology<\/a>","ice<\/a>","Siemens Gamesa Renewable Energy<\/a>","wind farms<\/a>","wind turbines<\/a>"],"unlinked":["Aalto University<\/span>","Delft University of Technology<\/span>","ice<\/span>","Siemens Gamesa Renewable Energy<\/span>","wind farms<\/span>","wind turbines<\/span>"],"slug":"post_tag","name":"Tags"},"language":{"linked":["EN<\/a>"],"unlinked":["EN<\/span>"],"slug":"language","name":"Tags"},"post_translations":{"linked":[],"unlinked":[],"slug":"post_translations","name":""},"location":{"linked":["Finland<\/a>"],"unlinked":["Finland<\/span>"],"slug":"location","name":"Locations"},"internal_archives":{"linked":[],"unlinked":[],"slug":"internal_archives","name":"Internal Archives"}},"series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected\/356601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/selected"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/2084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media\/356603"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=356601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=356601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=356601"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=356601"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=356601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}