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{"id":1202,"date":"2010-03-19T10:48:46","date_gmt":"2010-03-19T08:48:46","guid":{"rendered":"https:\/\/energethique.be\/?p=1202"},"modified":"2010-05-25T22:06:04","modified_gmt":"2010-05-25T20:06:04","slug":"wind-tower-profiter-du-vent-sur-toute-la-hauteur","status":"publish","type":"post","link":"https:\/\/energethique.be\/2010\/wind-tower-profiter-du-vent-sur-toute-la-hauteur\/","title":{"rendered":"Wind Tower : profiter du vent sur toute la hauteur"},"content":{"rendered":"La soci\u00e9t\u00e9 japonaise Zena System a d\u00e9pos\u00e9 un brevet pour une nouvelle version d’\u00e9olienne.<\/p>\n
Ce projet est bas\u00e9 sur une remarque \u00e9vidente que les \u00e9oliennes actuelles ne profitent de l’effet vent que sur la partie rotor et que son mat n’est l\u00e0 que pour en soutenir la m\u00e9canique.<\/p>\n
En voici une vue d’artiste puisqu’\u00e0 ce jour il n’existe encore aucun prototype.<\/p>\n
<\/p>\n
1 – Tour hexagonale (50 m haut et 27 m de diam\u00e8tre)<\/p>\n
2 – B\u00e2timent r\u00e9serv\u00e9 aux g\u00e9n\u00e9rateurs<\/p>\n
3 \u00e0 7 – B\u00e2timents pouvant \u00eatre utilis\u00e9 \u00e0 des fins commerciales ou adminitratives<\/p>\n
Le concept de cette tour est d’une part de b\u00e9n\u00e9ficier du vent sur 360\u00b0 tout en restant statique et de capturer celui-ci par un syst\u00e8me de porte ne s’ouvrant que sur l’int\u00e9rieur et for\u00e7ant le vent \u00e0 la base de la tour o\u00f9 sont situ\u00e9s les g\u00e9n\u00e9rateurs.<\/p>\n
<\/p>\n
La tour peut servir d’h\u00e9liport ou d’installation d’un restaurant panoramique d’apr\u00e8s les promoteurs, le tout peut \u00eatre int\u00e9gr\u00e9 dans un centre administratif ou commercial.<\/p>\n
Le principe m\u00eame part d’une bonne id\u00e9e, n\u00e9anmoins l’efficacit\u00e9 du vent au ras du sol ou \u00e0 quelques m\u00e8tres de hauteur n’est envisageable que dans un environnement compl\u00e8tement d\u00e9gag\u00e9.<\/p>\n
<\/p>\n
Il faut aussi tenir compte de l’encombrement au sol beaucoup plus important pour ce genre de turbine que pour une simple \u00e9olienne.<\/p>\n
Sachez cependant que les \u00e9oliennes grandes puissances (>3MW) culminent en g\u00e9n\u00e9ral \u00e0 plus de 130 m de haut et pr\u00e9sentent un encombrement balay\u00e9 au sol de plus de 100m.<\/p>\n
Du c\u00f4t\u00e9 des points positifs on notera cependant la situation des turbines au sol qui permettent un entretien plus ais\u00e9 et une protection contre la foudre plus facile.<\/p>\n
L’absence de rotor est b\u00e9n\u00e9fique pour l’environnement puisqu’il n’y aura pas d’effet stroboscopique ni d’effet pression pouvant causer des d\u00e9g\u00e2ts \u00e0 la la faune (principalement aux chauves souris).<\/p>\n
Enfin cette type de tour permet une efficacit\u00e9, d’apr\u00e8s le concepteur, sur une plus large plage de vitesse de vent comme le montre le graphique ci apr\u00e8s.<\/p>\n
<\/p>\n
Ce projet n’est pour le moment pas encore sorti de terre et il est bien difficile de v\u00e9rifier toutes les assertions des promoteurs couch\u00e9es sur le papier.<\/p>\n
Pour conclure il me semble que la puissance annonc\u00e9e est un peu optimiste … 5MW … mais je demande \u00e0 voir !<\/p>\n
Via : Techno-Science<\/a><\/p>\nSite internet du concepteur : Zena<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"La soci\u00e9t\u00e9 japonaise Zena System a d\u00e9pos\u00e9 un brevet pour une nouvelle version d’\u00e9olienne.<\/p>\n
Ce projet est bas\u00e9 sur une remarque \u00e9vidente que les \u00e9oliennes actuelles ne profitent de l’effet vent que sur la partie rotor et que son mat n’est l\u00e0 que pour en soutenir la m\u00e9canique.<\/p>\n
En voici une vue d’artiste puisqu’\u00e0 ce jour il n’existe encore aucun prototype.<\/p>\n<\/p>\n
1 – Tour hexagonale (50 m haut et 27 m de diam\u00e8tre)<\/p>\n
2 – B\u00e2timent r\u00e9serv\u00e9 aux g\u00e9n\u00e9rateurs<\/p>\n
3 \u00e0 7 – B\u00e2timents pouvant […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[4],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pBGwz-jo","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1202"}],"collection":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/comments?post=1202"}],"version-history":[{"count":0,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1202\/revisions"}],"wp:attachment":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/media?parent=1202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/categories?post=1202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/tags?post=1202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}