Recently updated on September 19th, 2024 at 03:33 pm<\/p>","protected":false},"excerpt":{"rendered":"
The updates to the modeling system developed over the three-year period were preliminarily tested in operating mode in 2021. The updates concerned modules for the reconstruction of emissions from natural sources and modules for the reconstruction of dry deposition at the isolator scale. Experimental studies relating to the thermodynamic behavior of the deposit also continued and provided a first modeling relationship between conductance and the ionic content in the aqueous phase, expressed as a function of relative humidity.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1325,1324,1409,1340,1330,1379],"targets":[1317],"rapporti_tipologie":[762],"class_list":["post-192289","rapporti","type-rapporti","status-publish","hentry","tag-electrical-system","tag-electricity-network-en","tag-isolators","tag-resilience","tag-security-en","tag-technologies-and-components","targets-research","rapporti_tipologie-report-en"],"acf":{"projects":{"ID":191042,"post_author":"464","post_date":"2024-07-10 15:54:47","post_date_gmt":"2024-07-10 13:54:47","post_content":"","post_title":"Components and materials for safety and resilience","post_excerpt":"The project aims to study and research innovative component and material solutions in order to increase the safety and resilience of the electrical system, also through new diagnostic methodologies which are necessary to cope with the new requirements of the grid and the changing environmental stresses to which it is subjected.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"components-and-materials-for-safety-and-resilience","to_ping":"","pinged":"","post_modified":"2024-08-09 15:52:10","post_modified_gmt":"2024-08-09 13:52:10","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/components-and-materials-for-safety-and-resilience\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
The overall objective of the modeling activities to support the insulator contamination studies conducted in the 2019-2021 three-year period of System Research was to develop increasingly precise parameterizations of the insulator contamination phenomena to be introduced into the air quality forecasting modeling chain of SMOKE_WRF_CAMx used by RSE. These activities contributed to making the modeling system an increasingly suitable tool for the simulation of critical episodes of insulator contamination, also allowing the Italian territory to be characterized in terms of insulator pollution risk. The studies conducted over the above-mentioned three-year period were both modeling and experimental in nature.
\nThe modeling updates tested in their first version in 2021 concerned the modules for the reconstruction of natural sources (sea spray), the module for the reconstruction of dry deposition at the isolator scale, and the formulation of the relationship between deposited mass and conductance.
\nWith reference to the simulation of sea spray emission, some configurations were compared with the aim of identifying the most suitable one for the present case study, also taking explicitly into account the processes linked to wave movement.
\nRegarding the deposition process, a simplified closed-form solution has been derived for the flow of atmospheric particulate matter (PM) deposited on electrical insulators. The closure of the mathematical model was obtained through a 4D regression procedure on the results of numerical simulations performed using a stochastic Lagrangian model. This solution was then used for preliminary estimates of the deposition flow, as a simplified sub-grid parameterization as an alternative to the DePaSITIA library (RSE SpA).
\nFinally, in collaboration with the Department of Environmental and Earth Sciences (Dipartimento di Scienze dell\u2019Ambiente e della Terra, DISAT) of the Universit\u00e0 degli Studi di Milano Bicocca (UNIMIB), a smog chamber dataset was developed which describes the evolution of the deposited mass as thermodynamic parameters (T, RH) vary. The comparison between the experimental data and data reconstructed using the ISORROPIA model indicates that the experimental relationship between conductance and aqueous content of the deposited mass can serve as a reference for a preliminary version of the module describing the thermodynamic behavior of the deposit.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":172642,"id":172642,"title":"21010365","filename":"21010365.pdf","filesize":8983439,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2022\/10\/21010365.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/attivita-sperimentali-e-modellistiche-per-la-ricostruzione-del-processo-di-contaminazione-degli-isolatori-2\/attachment\/21010365\/","alt":"","author":"93","description":"","caption":"","name":"21010365","status":"inherit","uploaded_to":172641,"date":"2022-10-25 08:33:56","modified":"2022-10-25 08:33:56","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2021-12-31","autori":"A.M. Toppetti, A. Balzarini, A. Amicarelli, G. Agate, N. Luciano (RSE S.p.A.), A. Bigogno (UniMIBC))","rapporto":"","rif_rse":"21010365"},"satellite_post_url":""},"yoast_head":"\n