{"id":39568,"date":"2024-06-05T17:24:53","date_gmt":"2024-06-05T15:24:53","guid":{"rendered":"https:\/\/tsisl.es\/?p=39568"},"modified":"2024-06-06T11:39:12","modified_gmt":"2024-06-06T09:39:12","slug":"a-quick-and-technically-and-economically-feasible-response-on-reducing-the-underwater-radiated-noise-by-existing-ships-control-of-propeller-cavitation-and-urn-simultaneously","status":"publish","type":"post","link":"https:\/\/tsisl.es\/en\/2024\/06\/a-quick-and-technically-and-economically-feasible-response-on-reducing-the-underwater-radiated-noise-by-existing-ships-control-of-propeller-cavitation-and-urn-simultaneously\/","title":{"rendered":"A QUICK AND TECHNICALLY AND ECONOMICALLY FEASIBLE RESPONSE ON REDUCING THE UNDERWATER RADIATED NOISE (URN) BY EXISTING SHIPS: CONTROL OF PROPELLER CAVITACION AND URN SIMULTANEOUSLY"},"content":{"rendered":"<p><a href=\"https:\/\/www.imo.org\/es\/About\/Paginas\/Default.aspx\">The International Maritime Organization<\/a> (IMO) has recently reviewed the Guidelines for the reduction of underwater radiated noise from shipping to address adverse impact on marine life (<a href=\"http:\/\/chrome-extension\/\/efaidnbmnnnibpcajpcglclefindmkaj\/https:\/\/wwwcdn.imo.org\/localresources\/es\/MediaCentre\/MeetingSummaries\/Documents\/MEPC.1-Circ.906%20-%20Directrices%20Revisadas.pdf\">Ref MEPC.1 \/ Circ.906<\/a>).<\/p>\n<p>From the ship angle, the propulsion is the primary source of URN. The propeller cavitation itself, when occurring, is known to be the dominant contribution of URN.<\/p>\n<p>As per now, shipowners are still struggling to fulfil the GHG emissions related requirements (EEDI\/EEXI, CII, Fit for 55). The need for URN reduction cannot be detrimental to GHG emissions. Furthermore, for existing ships, implementing URN-related technologies is still at an early stage.<\/p>\n<p>A unique approach was developed to enable shipowners to manage their main URN sources and propulsion efficiency status by means of an onboard real-time, digitally advanced, and easily adaptable monitoring solution, the <a href=\"https:\/\/tsisl.es\/en\/technology-and-developments\/ni-cds\/\">Ni-CDS<\/a>.<\/p>\n<p>After conducting a proper characterization of the ship\u2019s URN (onboard\/outboard), the permanently installed solution provides a reporting interface on the actual URN and, thanks to a mid-term analysis, advises on the propeller\u2019s maintenance.<\/p>\n<p>Moreover, using the Ni-CDS facilitates the assessment of new, innovative, noise signature reduction assets being developed in the market, being able to evaluate the reduction before and after the deployment of the asset.<\/p>\n<p style=\"text-align: center;\"><a href='https:\/\/tsisl.es\/wp-content\/uploads\/2024\/06\/63rd-CIIN-Articulo-TSI-v5.pdf' class='big-button bigblue'>READ FULL ARTICLE<\/a><\/p>\n<p>Authors:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/publio-beltr%C3%A1n-1b8b0291\/\">Publio Beltr\u00e1n Palomo<\/a>\u00a0&#8211; T\u00e9cnicas y Servicios de Ingenier\u00eda S.L. General Director.\u00a0<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/eric-baudin-b0590317\/\">Eric Baudin<\/a>\u00a0&#8211; Bureau Veritas Solutions M&amp;O. Innovation &amp; Energy Transition Manager.\u00a0<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/luis-antonio-piqueras-8a2086184\/\">Luis A. Piqueras<\/a>\u00a0&#8211; T\u00e9cnicas y Servicios de Ingenier\u00eda S.L. Production Department.\u00a0<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/mar%C3%ADa-antonia-tesorero-moreno-00b395121\/\">M. Antonia Tesorero<\/a>\u00a0-T\u00e9cnicas y Servicios de Ingenier\u00eda S.L. Production Department.\u00a0<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/richardgarciamendez\/\">Richard Garc\u00eda M\u00e9ndez<\/a>\u00a0&#8211; T\u00e9cnicas y Servicios de Ingenier\u00eda S.L. Developments.\u00a0<\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/in\/santiago-molins-riera\/\">Santiago Molins<\/a>\u00a0&#8211; RDI Department Manager.<\/li>\n<\/ul>\n<span class=\"et_bloom_bottom_trigger\"><\/span>","protected":false},"excerpt":{"rendered":"<p>The International Maritime Organization (IMO) has recently reviewed the Guidelines for the reduction of underwater radiated noise from shipping to address adverse impact on marine life (Ref MEPC.1 \/ 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