For the first time, conductors with anti-ice coatings have been characterized from the point of view of their anti-snow properties both on laboratory size samples and on real size ones, giving interesting results both in dry snow conditions and in wet snow conditions.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[],"targets":[1317],"pubblicazioni_tipologie":[773],"class_list":["post-198154","pubblicazioni","type-pubblicazioni","status-publish","hentry","targets-research","pubblicazioni_tipologie-isi-article-en"],"acf":{"dont_show_hompage":true,"projects":{"ID":188405,"post_author":"93","post_date":"2024-06-13 15:10:12","post_date_gmt":"2024-06-13 13:10:12","post_content":"","post_title":"Resilience and Security for Energy Systems","post_excerpt":"The goal of the project is to increase the security and resilience of the energy system in the face of greater environmental threats due to climate change, through the development of tools to support institutions and operators and the definition of an optimal set of actions to be adopted for this purpose.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"resilience-and-security-for-energy-systems","to_ping":"","pinged":"","post_modified":"2024-07-02 10:30:30","post_modified_gmt":"2024-07-02 08:30:30","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/resilience-and-security-for-energy-systems\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
Overhead power line conductors and ground wires are affected by ice and snow accretion which can easily adhere to their surface, causing the breakage of cables and the collapse of pylons due to excessive weight. In Italy, the main concern is about wet snow: this phenomenon occurs close to zero degrees Celsius with snow density reaching up to 350 Kg\/m3.<\/p>\n
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Anti-icing and anti-snow coat-ings represent a possible strategy to mitigate ice accretion on overhead power line structures. Many works are oriented to achieve anti-icing properties, starting from superhydrophobic coatings or slip-pery coatings; however, there is a lack of knowledge about the anti-snow behaviour of these sur-faces. In this work, aluminium alloy conductor and ground-wire samples were prepared with dif-ferent coatings, which include hydrophobic, superhydrophobic and slippery surfaces prepared in the laboratory.<\/p>\n
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Characterisations of sample wettability at room and low temperatures and ice adhe-sion strength were carried out in the laboratory. Anti-snow behaviour was studied in outdoor test facilities in the Italian Alps during several snowfall events.<\/p>\n
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Furthermore, the environmental param-eters were also recorded. Two figures of merit were developed to quantify anti-snow behaviour of the samples: one describing the fraction of surfaces covered by snow during the snowfall event and the other representing the maximum accretion load reached on the samples. Results of laboratory and field testing are compared and discussed.<\/p>\n
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Field testing evidenced a promising snowphobic be-haviour for all the samples, despite the different anti-icing and wettability properties measured in the laboratory. The mitigation of the phenomenon was found to occur mainly with two different mechanisms: the delay in snow accretion on the surface and\/or the early shedding of the snow-sleeve.<\/p>\n","scarica_file":false,"link_estreno":[{"link_text":"Download Publication","link":"https:\/\/www.mdpi.com\/2079-6412\/13\/3\/616"}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2023-03-14","autori":"M. Balordi , G. Santucci de Magistris, A. Cammi, M. Lacavalla, V. Rotella (RSE S.p.A.), A. Casali (Universit\u00e0 di Parma), F. Pini (Universit\u00e0 di Pavia)","destinazione":"MDPI Coatings, Vol. 13, Issue 3","rif_rse":"23002240"},"satellite_post_url":""},"yoast_head":"\n