{"id":27660,"date":"2026-05-19T11:20:55","date_gmt":"2026-05-19T09:20:55","guid":{"rendered":"https:\/\/greth.fr\/?p=27660"},"modified":"2026-05-19T11:36:40","modified_gmt":"2026-05-19T09:36:40","slug":"approche-couplant-analyse-pincement-analyse-exergetique-avancee-et-optimisation-pour-lamelioration-de-lefficacite-energetique-des-procedes-industriels-apport-des-systemes-experts","status":"publish","type":"post","link":"https:\/\/greth.fr\/en\/approche-couplant-analyse-pincement-analyse-exergetique-avancee-et-optimisation-pour-lamelioration-de-lefficacite-energetique-des-procedes-industriels-apport-des-systemes-experts\/","title":{"rendered":"Coupled approach combining pinch analysis, advanced exergetic analysis, and optimisation for the improvement of energy efficiency in industrial processes : contribution of expert systems"},"content":{"rendered":"<strong><span style=\"text-decoration: underline;\">Summary:<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">The European Climate Law aims to achieve carbon neutrality by 2050, with a focus on decarbonising industry. A cornerstone of CO2 emissions reduction, improving energy efficiency consists of the retrofit of industrial processes to make them more energy efficient and then promoting the connection of these processes to renewable and recoverable energies, which are considered less intensive than fossil fuels. To improve existing processes in this direction, it is necessary to develop tools to carry out advanced energy diagnostics of industrial processes in order to develop energy efficiency solutions and facilitate decision-making relating to their industrial implementation. The COOPERE (COmbine Optimisation of Processes, Energy Recovery and Exergy analysis) approach, developed by Gourmelon et al. (2017) at the Laboratoire de G\u00e9nie Chimique, provides engineers with a systematic methodology for identifying and reducing inefficiencies in industrial processes. Based on a combined use of the pinch method and exergy analysis, this approach composed of three stages; The first consists of data collection and process modelling. The second stage is based on a pinch analysis of the process to retrofit the heat exchanger network without modifying the internal structure of the process. Finally, the third stage combines exergy analysis, pinch analysis and multi-criteria optimisation to propose solutions for retrofitting the overall process (core of the process and exchanger network). Although very promising, this approach still has some limitations that may hinder its application in an industrial context. These limitations mainly concern the third stage mentioned above. While the exergy analysis developed by Gourmelon et al. (2017) is very effective in quantifying and characterising the exergetic inefficiencies of each section of the process, it still relies on an exhaustive treatment of all the inefficiencies identified, significantly complicating the subsequent optimisation phase and increasing the CAPEX of the proposed solutions. On this point, the need to prioritise improvement actions based on a more detailed analysis of the irreversibilities observed in the process appears essential in order to make the approach more pragmatic. Moreover, the proposal for a structural modification of the process aimed at reducing these inefficiencies often remains delicate because it requires solid expertise on the part of the engineer. The work presented as part of this thesis aims to supplement the COOPERE approach with a methodology combining Advanced Exergetic Analysis, Rule-based Reasoning and Optimisation to overcome these limitations. Firstly, advanced exergetic analysis allows for more precise characterisation of irreversibilities; a generic approach has been implemented to evaluate avoidable\/unavoidable irreversibilities on the one hand and endogenous\/exogenous irreversibilities on the other, thus allowing for a more relevant prioritisation of the process sections to be optimised. These conclusions are then used to feed an expert reasoning system based on rules and coupled with an ontology aimed at assisting the engineer in proposing several alternatives for structural modifications to the process. Finally, a multicriteria structural and parametric optimisation approach based on a meta-heuristic and integrated into the simulator is used to determine a set of several alternatives (process structure and operating parameters) that would minimise criteria such as maximum recoverable energy, electricity consumption, investment cost, etc.<\/p>\n<table border=\"1\" width=\"100%\">\n<tbody>\n<tr>\n<td><strong>Author<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Noha-Lys SENOUSSAOUI<\/td>\n<\/tr>\n<tr>\n<td><strong>Date of presentation<\/strong><\/td>\n<\/tr>\n<tr>\n<td>2025, march 10th<\/td>\n<\/tr>\n<tr>\n<td><strong>Keywords<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Optimisation, Ontology, Simulation, Energy integration, Rule based reasoning, Exergy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div class=\"eds-animate edsanimate-sis-hidden\" data-eds-entry-animation=\"bounceIn\" data-eds-entry-delay=\"0\" data-eds-entry-duration=\"1\" data-eds-entry-timing=\"linear\" data-eds-exit-animation=\"\" data-eds-exit-delay=\"\" data-eds-exit-duration=\"\" data-eds-exit-timing=\"\" data-eds-repeat-count=\"1\" data-eds-keep=\"yes\" data-eds-animate-on=\"load\" data-eds-scroll-offset=\"\">\n\t\t<div class=\"box info\">\n\t\t\t<div class=\"box-inner-block\">\n\t\t\t\t<span class=\"fa tie-shortcode-boxicon\"><\/span>\n<p style=\"text-align: justify;\"><strong>&#x2666; The full version is only available for subscribers <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #3db2ea; color: #fff;\">\"ESSENTIEL\"<\/span><\/a> or <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #c6002c; color: #fff;\">\"PREMIUM\"<\/span><\/a> of GRETh!<\/strong><\/p>\n<p>&#x2666; If you are already a member \/ subscriber, you must identify yourself by <a href=\"\/wp-login.php\"><strong>clicking here<\/strong><\/a>.<br \/>\n&#x2666; If you are not a member, you can consult the offer proposed by GRETh by <a href=\"\/en\/offre-du-greth\/\"><strong>clicking here<\/strong><\/a> as well as the conditions of membership by <a href=\"\/en\/conditions-adhesion\/\"><strong>clicking here<\/strong><\/a>.\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 : La loi europ\u00e9enne sur le climat vise \u00e0 atteindre la neutralit\u00e9 carbone d&#8217;ici 2050, en mettant l&#8217;accent sur la d\u00e9carbonation de l&#8217;industrie. Pierre angulaire de la r\u00e9duction des \u00e9missions de CO2, l&#8217;am\u00e9lioration de l&#8217;efficacit\u00e9 \u00e9nerg\u00e9tique consiste \u00e0 remodeler les proc\u00e9d\u00e9s industriels afin de les rendre plus sobres \u00e9nerg\u00e9tiquement pour ensuite favoriser la connexion de ces proc\u00e9d\u00e9s aux \u00e9nergies renouvelables et r\u00e9cup\u00e9rables, r\u00e9put\u00e9es moins intensives que les \u00e9nergies fossiles. Pour am\u00e9liorer les proc\u00e9d\u00e9s existants dans ce sens, il est n\u00e9cessaire de pouvoir disposer d\u2019outils permettant de r\u00e9aliser des diagnostics \u00e9nerg\u00e9tiques avanc\u00e9s des proc\u00e9d\u00e9s industriels afin d\u2019\u00e9laborer des solutions d\u2019efficacit\u00e9 \u00e9nerg\u00e9tique et de faciliter la prise de d\u00e9cision relatives \u00e0 leur mise en \u0153uvre.<\/p>","protected":false},"author":1,"featured_media":964,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21],"tags":[6912,6994,6993,6487,6995,6407],"class_list":["post-27660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-documents","category-memoires-theses","tag-exergie","tag-integration-energetique","tag-ontologie","tag-optimisation","tag-raisonnement-a-base-de-regles","tag-simulation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Approche couplant analyse pincement, analyse exerg\u00e9tique avanc\u00e9e et optimisation pour l&#039;am\u00e9lioration de l&#039;efficacit\u00e9 \u00e9nerg\u00e9tique des proc\u00e9d\u00e9s industriels : apport des syst\u00e8mes experts - GRETh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/greth.fr\/en\/approche-couplant-analyse-pincement-analyse-exergetique-avancee-et-optimisation-pour-lamelioration-de-lefficacite-energetique-des-procedes-industriels-apport-des-systemes-experts\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Approche couplant analyse pincement, analyse exerg\u00e9tique avanc\u00e9e et optimisation pour l&#039;am\u00e9lioration de l&#039;efficacit\u00e9 \u00e9nerg\u00e9tique des proc\u00e9d\u00e9s industriels : apport des syst\u00e8mes experts\" \/>\n<meta property=\"og:description\" content=\"R\u00e9sum\u00e9 : La loi europ\u00e9enne sur le climat vise \u00e0 atteindre la neutralit\u00e9 carbone d&#039;ici 2050, en mettant l&#039;accent sur la d\u00e9carbonation de l&#039;industrie. Pierre angulaire de la r\u00e9duction des \u00e9missions de CO2, l&#039;am\u00e9lioration de l&#039;efficacit\u00e9 \u00e9nerg\u00e9tique consiste \u00e0 remodeler les proc\u00e9d\u00e9s industriels afin de les rendre plus sobres \u00e9nerg\u00e9tiquement pour ensuite favoriser la connexion de ces proc\u00e9d\u00e9s aux \u00e9nergies renouvelables et r\u00e9cup\u00e9rables, r\u00e9put\u00e9es moins intensives que les \u00e9nergies fossiles. Pour am\u00e9liorer les proc\u00e9d\u00e9s existants dans ce sens, il est n\u00e9cessaire de pouvoir disposer d\u2019outils permettant de r\u00e9aliser des diagnostics \u00e9nerg\u00e9tiques avanc\u00e9s des proc\u00e9d\u00e9s industriels afin d\u2019\u00e9laborer des solutions d\u2019efficacit\u00e9 \u00e9nerg\u00e9tique et de faciliter la prise de d\u00e9cision relatives \u00e0 leur mise en \u0153uvre.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/greth.fr\/en\/approche-couplant-analyse-pincement-analyse-exergetique-avancee-et-optimisation-pour-lamelioration-de-lefficacite-energetique-des-procedes-industriels-apport-des-systemes-experts\/\" \/>\n<meta property=\"og:site_name\" content=\"GRETh\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-19T09:20:55+00:00\" \/>\n<meta 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