{"id":1968,"date":"2025-08-14T23:10:55","date_gmt":"2025-08-14T21:10:55","guid":{"rendered":"https:\/\/www.ferro-vert.fr\/?p=1968"},"modified":"2025-12-03T20:45:39","modified_gmt":"2025-12-03T19:45:39","slug":"climat-a-bord-comment-le-ferroviaire-adapte-le-confort-thermique-face-au-rechauffement","status":"publish","type":"post","link":"https:\/\/www.ferro-vert.fr\/index.php\/2025\/08\/14\/climat-a-bord-comment-le-ferroviaire-adapte-le-confort-thermique-face-au-rechauffement\/","title":{"rendered":"Climat \u00e0 bord : comment le ferroviaire adapte le confort thermique face au r\u00e9chauffement"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1968\" class=\"elementor elementor-1968\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cf62eab e-flex e-con-boxed e-con e-parent\" data-id=\"cf62eab\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;,&quot;shape_divider_top&quot;:&quot;mountains&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;],&quot;sticky_offset&quot;:0,&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-shape elementor-shape-top\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1000 100\" preserveAspectRatio=\"none\">\n\t<path class=\"elementor-shape-fill\" opacity=\"0.33\" d=\"M473,67.3c-203.9,88.3-263.1-34-320.3,0C66,119.1,0,59.7,0,59.7V0h1000v59.7 c0,0-62.1,26.1-94.9,29.3c-32.8,3.3-62.8-12.3-75.8-22.1C806,49.6,745.3,8.7,694.9,4.7S492.4,59,473,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" opacity=\"0.66\" d=\"M734,67.3c-45.5,0-77.2-23.2-129.1-39.1c-28.6-8.7-150.3-10.1-254,39.1 s-91.7-34.4-149.2,0C115.7,118.3,0,39.8,0,39.8V0h1000v36.5c0,0-28.2-18.5-92.1-18.5C810.2,18.1,775.7,67.3,734,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" d=\"M766.1,28.9c-200-57.5-266,65.5-395.1,19.5C242,1.8,242,5.4,184.8,20.6C128,35.8,132.3,44.9,89.9,52.5C28.6,63.7,0,0,0,0 h1000c0,0-9.9,40.9-83.6,48.1S829.6,47,766.1,28.9z\"\/>\n<\/svg>\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cf0750a e-flex e-con-boxed e-con e-child\" data-id=\"cf0750a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9f9f573 e-con-full e-flex e-con e-child\" data-id=\"9f9f573\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cd81b73 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"cd81b73\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Climat \u00e0 bord : comment le ferroviaire adapte le confort thermique face au r\u00e9chauffement<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-71c2444 e-flex e-con-boxed e-con e-child\" data-id=\"71c2444\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0d3e5fb e-flex e-con-boxed e-con e-parent\" data-id=\"0d3e5fb\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;gradient&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-944e0fe e-flex e-con-boxed e-con e-child\" data-id=\"944e0fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c71cb1c e-flex e-con-boxed e-con e-child\" data-id=\"c71cb1c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f76fafb elementor-widget elementor-widget-text-editor\" data-id=\"f76fafb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: left;\">\u00a0<\/p><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Dans un train bond\u00e9, par une journ\u00e9e d&#8217;\u00e9t\u00e9 o\u00f9 le soleil cogne sur les vitres, chacun mesure l&#8217;importance du confort climatique. Ce param\u00e8tre, invisible mais essentiel, influence directement l&#8217;exp\u00e9rience de voyage. Pour un constructeur comme Alstom, l&#8217;\u00e9quation est complexe : offrir une climatisation efficace, int\u00e9grable dans un espace contraint, silencieux, \u00e9conomique\u2026 et d\u00e9sormais capable d&#8217;affronter un climat plus chaud et plus extr\u00eame.<\/p><p>\u00a0<\/p><p style=\"text-align: left;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-1970 aligncenter\" src=\"https:\/\/www.ferro-vert.fr\/wp-content\/uploads\/2025\/08\/chatgpt-image-14-aout-2025-22-23-14-e1755205362188-300x280.png\" alt=\"\" width=\"490\" height=\"457\" srcset=\"https:\/\/www.ferro-vert.fr\/wp-content\/uploads\/2025\/08\/chatgpt-image-14-aout-2025-22-23-14-e1755205362188-300x280.png 300w, https:\/\/www.ferro-vert.fr\/wp-content\/uploads\/2025\/08\/chatgpt-image-14-aout-2025-22-23-14-e1755205362188-768x716.png 768w, https:\/\/www.ferro-vert.fr\/wp-content\/uploads\/2025\/08\/chatgpt-image-14-aout-2025-22-23-14-e1755205362188.png 1024w\" sizes=\"(max-width: 490px) 100vw, 490px\" \/><\/p><h2 style=\"text-align: left;\">\u00a0<\/h2><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">Le dilemme technique et \u00e9nerg\u00e9tique<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">En th\u00e9orie, on pourrait simplement surdimensionner les syst\u00e8mes de refroidissement pour anticiper les vagues de chaleur \u00e0 venir. Mais cette solution a un co\u00fbt lourd :<\/p><ul class=\"marker:text-quiet list-disc\" style=\"text-align: left;\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>plus de masse<\/strong>\u00a0, donc plus d&#8217;\u00e9nergie d\u00e9pens\u00e9e pour tracter le train,<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>plus de consommation directe<\/strong>\u00a0du groupe de climatisation,<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">un\u00a0<strong>impact carbone global<\/strong>\u00a0augment\u00e9, contraire aux objectifs de sobri\u00e9t\u00e9 du mat\u00e9riel roulant.<\/p><\/li><\/ul><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Le d\u00e9fi est donc de\u00a0<strong>refroidir mieux, sans alourdir ni surconsommer<\/strong>.<\/p><p>\u00a0<\/p><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">R\u00e9duire le besoin plut\u00f4t qu&#8217;augmenter la puissance<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Alstom mise d&#8217;abord sur la r\u00e9duction de la chaleur \u00e0 traiter :<\/p><ul class=\"marker:text-quiet list-disc\" style=\"text-align: left;\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\" style=\"text-align: left;\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\"><strong>Films solaires et vitrages teint\u00e9s<\/strong>\u00a0\u202f: ils limitent les apports solaires directs, notamment la charge thermique \u00e0 bord. Ce proc\u00e9d\u00e9 peut m\u00eame s&#8217;appliquer lors des r\u00e9novations mi-vie des trains existants.<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\"><strong>Couleurs ext\u00e9rieures claires<\/strong>\u00a0\u202f: elles r\u00e9fl\u00e9chissent mieux la lumi\u00e8re, diminuant l&#8217;absorption de chaleur. Le constructeur explore \u00e9galement de nouveaux rev\u00eatements pour abaisser encore ce facteur d&#8217;absorption, sans sacrifier le design.<\/p><\/li><\/ul><h2 style=\"text-align: left;\">\u00a0<\/h2><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">\u00c9tendre la plage de fonctionnement<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">La technologie actuelle \u00e0 compression vapeur poss\u00e8de des limites : au-del\u00e0 d&#8217;un certain seuil de temp\u00e9rature ext\u00e9rieure, la puissance frigorifique se r\u00e9duit, voire la fonction de refroidissement s&#8217;interrompt. Or, les statistiques climatiques sont claires : les vagues de chaleur deviennent plus fr\u00e9quentes, et le pic thermique augmente plus vite que la moyenne saisonni\u00e8re.<\/p><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">La norme\u00a0<strong>EN 14750 (2024)<\/strong>\u00a0impose d\u00e9sormais que le syst\u00e8me conserve sa pleine puissance jusqu&#8217;\u00e0\u00a0<strong>+5 \u00b0C<\/strong>\u00a0au-dessus de la temp\u00e9rature de dimensionnement. Alstom s&#8217;efforce m\u00eame de\u00a0<strong>d\u00e9passer ce crit\u00e8re<\/strong>, pour anticiper la r\u00e9alit\u00e9 climatique des d\u00e9cennies \u00e0 venir.<\/p><p>\u00a0<\/p><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">Pr\u00e9dire les pannes avant qu&#8217;elles ne frappent<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Rien de pire qu&#8217;une clim en panne au c\u0153ur d&#8217;un \u00e9pisode caniculaire. Pour limiter ce risque, Alstom d\u00e9ploie des\u00a0<strong>algorithmes de maintenance pr\u00e9dictive<\/strong>\u00a0capables de d\u00e9tecter :<\/p><ul class=\"marker:text-quiet list-disc\" style=\"text-align: left;\"><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">les fuites de r\u00e9frig\u00e9rant,<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">l&#8217;encrassement des filtres \u00e0 air,<\/p><\/li><li class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [&amp;&gt;p]:pt-0 [&amp;&gt;p]:mb-2 [&amp;&gt;p]:my-0\"><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">ou toute anomalie risquant de perturber le refroidissement.<\/p><\/li><\/ul><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Ces diagnostics, effectu\u00e9s avant la saison chaude, renforcent la fiabilit\u00e9 et \u00e9vitent des interventions d&#8217;urgence en pleine exploitation.<\/p><p>\u00a0<\/p><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">Une adaptation collective<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">R\u00e9ussir cette mutation ne repose pas uniquement sur la technologie : c&#8217;est aussi un travail d&#8217;\u00e9quipe entre constructeur, fournisseur de syst\u00e8mes de climatisation et client\/op\u00e9rateur. Se mettre d&#8217;accord sur les arbitrages techniques (masse, volume, performance, bruit) et \u00e9conomiques (co\u00fbts d&#8217;investissement, d&#8217;exploitation, de maintenance) est la condition pour b\u00e2tir des solutions r\u00e9ellement efficaces, adapt\u00e9es aux r\u00e9alit\u00e9s climatiques de demain.<\/p><p>\u00a0<\/p><h2 class=\"mb-2 mt-4 text-base font-[500] first:mt-0 dark:font-[475]\" style=\"text-align: left;\">Plus qu&#8217;un confort, un imp\u00e9ratif strat\u00e9gique<\/h2><p class=\"my-2 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\" style=\"text-align: left;\">Le confort climatique \u00e0 bord ne sera plus un simple enjeu d&#8217;agr\u00e9ment : il devient un\u00a0<strong>facteur de r\u00e9silience<\/strong>\u00a0du transport ferroviaire et un crit\u00e8re cl\u00e9 de la satisfaction client. Dans un contexte de r\u00e9chauffement, un train qui reste agr\u00e9able \u00e0 vivre, m\u00eame en plein pic de chaleur, c&#8217;est la preuve d&#8217;un r\u00e9seau capable de prot\u00e9ger ses usagers\u2026 tout en respectant ses engagements environnementaux.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>\u00a0 Dans un train bond\u00e9, par une journ\u00e9e d&#8217;\u00e9t\u00e9 o\u00f9 le soleil cogne sur les vitres, chacun mesure l&#8217;importance du confort climatique. Ce param\u00e8tre, invisible mais essentiel, influence directement l&#8217;exp\u00e9rience de voyage. Pour un constructeur comme Alstom, l&#8217;\u00e9quation est complexe : offrir une climatisation efficace, int\u00e9grable dans un espace contraint, silencieux, \u00e9conomique\u2026 et d\u00e9sormais capable [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1970,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[31,30,12,13,14,35],"tags":[],"class_list":["post-1968","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alstom","category-articles","category-scope-1","category-scope-2","category-scope-3","category-sncf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Climat \u00e0 bord : comment le ferroviaire adapte le confort thermique face au r\u00e9chauffement - Ferro-Vert<\/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:\/\/www.ferro-vert.fr\/index.php\/2025\/08\/14\/climat-a-bord-comment-le-ferroviaire-adapte-le-confort-thermique-face-au-rechauffement\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Climat \u00e0 bord : comment le ferroviaire adapte le confort thermique face au r\u00e9chauffement - Ferro-Vert\" \/>\n<meta property=\"og:description\" content=\"\u00a0 Dans un train bond\u00e9, par une journ\u00e9e d&#8217;\u00e9t\u00e9 o\u00f9 le soleil cogne sur les vitres, chacun mesure l&#8217;importance du confort climatique. 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