{"id":3011,"date":"2010-04-16T19:29:50","date_gmt":"2010-04-16T18:29:50","guid":{"rendered":"http:\/\/www.ecocopro.com\/?p=3011"},"modified":"2012-07-13T09:57:11","modified_gmt":"2012-07-13T08:57:11","slug":"quelle-est-la-difference-entre-l%e2%80%99energie-primaire-et-l%e2%80%99energie-finale","status":"publish","type":"post","link":"https:\/\/ecocopro.com\/?p=3011","title":{"rendered":"Quelle est la diff\u00e9rence entre l\u2019\u00e9nergie primaire et l\u2019\u00e9nergie finale ?"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u00a0<\/span>\u00a0<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\"><img decoding=\"async\" loading=\"lazy\" id=\"rg_hi\" class=\"aligncenter\" src=\"https:\/\/encrypted-tbn2.google.com\/images?q=tbn:ANd9GcSmMGXnm_9s-W38IfX5egrFkZLnFzHePAGnK2YhrHUeO3yKCmac\" alt=\"\" width=\"259\" height=\"194\" \/><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<em>\u00a0\u00a0\u00a0(\u00a0 graphique montrant la consommation mondiale d&rsquo;energie primaire )<\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">On ne voit que \u00ab\u00a0<strong>l&rsquo;\u00e9nergie finale<\/strong>\u00a0\u00bb , c&rsquo;est-\u00e0-dire celle que nous consommons par exemple en allumant la lumi\u00e8re.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">Mais derri\u00e8re celle-ci il y a \u00ab\u00a0<strong>l&rsquo;\u00e9nergie primaire\u00a0\u00bb.<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">De quoi s&rsquo;agit-il ?<\/span><\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<p style=\"text-align: justify;\">L\u2019\u00e9nergie \u00ab\u00a0donne du mouvement\u00a0\u00bb ou \u00ab\u00a0\u00e9l\u00e8ve la temp\u00e9rature\u00a0\u00bb.<\/p>\n<p style=\"text-align: justify;\">\u00a0On l\u2019obtient par la combustion de p\u00e9trole, de gaz, de charbon, de bois ou alors par des forces naturelles que sont le vent ou l\u2019\u00e9nergie solaire ou encore la chaleur du sous-sol.<\/p>\n<p style=\"text-align: justify;\">\u00a0L\u2019\u00e9nergie se mesure en KWH ou en JOULES (1 KWH = 3,6 millions de JOULES).\u00a0<\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" id=\"rg_hi\" class=\"aligncenter\" src=\"https:\/\/encrypted-tbn2.google.com\/images?q=tbn:ANd9GcS7b7pOJjw5ZZ3hal-mU0NHClbBHsKt0CuTnxzGacxcw1QPWKF7\" alt=\"\" width=\"243\" height=\"208\" \/><\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #ff0000;\">L\u2019\u00e9nergie primaire <\/span>c\u2019est celle qui est disponible dans la nature\u00a0: bois, charbon, gaz, p\u00e9trole, vent, soleil, hydraulique, g\u00e9othermique.<\/p>\n<p style=\"text-align: justify;\">\u00a0Si elle n\u2019a subi aucune conversion l\u2019\u00e9nergie est donc primaire mais elle peut \u00eatre<span style=\"color: #008000;\"> <span style=\"color: #ff0000;\">\u00e9nergie secondaire <\/span><\/span>si on l\u2019a convertie vers une autre \u00e9nergie\u00a0: par exemple le charbon peut \u00eatre transform\u00e9 en \u00e9lectricit\u00e9.<\/p>\n<p style=\"text-align: justify;\">\u00a0L\u2019\u00e9nergie d\u00e9livr\u00e9e aux consommateurs est <span style=\"color: #ff0000;\">l\u2019\u00e9nergie finale\u00a0<\/span>: \u00e9lectricit\u00e9, essence, gaz, gasoil, fuel et elle devient \u00e9nergie utile apr\u00e8s sa derni\u00e8re conversion.<\/p>\n<p style=\"text-align: justify;\">\u00a0<\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">S<strong>ignalons que le taux de conversion pour passer de l\u2019\u00e9lectricit\u00e9 finale \u00e0 l\u2019\u00e9nergie primaire est de 2,54.<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><strong>\u00a0<\/strong>C&rsquo;est-\u00e0-dire que 9.000 KWH en \u00e9nergie \u00e9lectrique finale correspondent \u00e0 22.860 KWH en \u00e9nergie primaire.<\/p>\n<p style=\"text-align: justify;\">\u00a0En effet, pour transformer celle-ci il faut d\u00e9penser pour produire et distribuer apr\u00e8s avoir \u00e9ventuellement raffin\u00e9.<\/p>\n<p style=\"text-align: justify;\">\u00a0L\u2019estimation du taux de conversion est sujette \u00e0 discussion\u2026<\/p>\n","protected":false},"excerpt":{"rendered":"<p>l&rsquo;energie primaire est partout<\/p>\n<p>l&rsquo;energie finale est celle qui nous est utile car nous la consommons<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/posts\/3011"}],"collection":[{"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ecocopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3011"}],"version-history":[{"count":17,"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/posts\/3011\/revisions"}],"predecessor-version":[{"id":9173,"href":"https:\/\/ecocopro.com\/index.php?rest_route=\/wp\/v2\/posts\/3011\/revisions\/9173"}],"wp:attachment":[{"href":"https:\/\/ecocopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecocopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecocopro.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}