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{"id":247,"date":"2020-11-16T13:32:58","date_gmt":"2020-11-16T13:32:58","guid":{"rendered":"http:\/\/ms.iaca.fr\/?p=247"},"modified":"2020-11-16T13:33:00","modified_gmt":"2020-11-16T13:33:00","slug":"rendement-dun-radiateur","status":"publish","type":"post","link":"http:\/\/ms.iaca.fr\/rendement-dun-radiateur","title":{"rendered":"Rendement d’un radiateur"},"content":{"rendered":"\n

Un radiateur \u00e0 eau chaude a une puissance nominale de 1 200 W.
Il est aliment\u00e9 en eau chaude par la chaudi\u00e8re (Et<\/sub>) et restitue une partie de cette \u00e9nergie thermique dans la pi\u00e8ce (Er<\/sub>).<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

a. Calculer l’\u00e9nergie nominale restitu\u00e9e dans la pi\u00e8ce pendant une heure de fonctionnement. <\/p>\n\n\n\n

L’\u00e9nergies nominale est l’\u00e9nergie en fonctionnement normale.
E = P \u00d7 t = 1 200 \u00d7 1 = 1200 Wh<\/p>\n\n\n\n

b. L’\u00e9nergie thermique fournie par la chaudi\u00e8re pour chauffer l’eau est 1.53 kWh. Calculer le rendement n du radiateur.<\/p>\n\n\n\n

n = \u00e9nergie utile \u00f7 \u00e9nergie totale ; il faut que tous les nombres soient dans la m\u00eame unit\u00e9.
n = 1,2 \u00f7 1,53 = 0,78
Le rendement est de 78%<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Un radiateur \u00e0 eau chaude a une puissance nominale de 1 200 W. Il est aliment\u00e9 en eau chaude par la chaudi\u00e8re (Et) et restitue une partie de cette \u00e9nergie thermique dans la pi\u00e8ce (Er). a. Calculer l’\u00e9nergie nominale restitu\u00e9e dans la pi\u00e8ce pendant une heure de fonctionnement. L’\u00e9nergies nominale est l’\u00e9nergie en fonctionnement normale.E … <\/p>\n

Continuer la lecture de « Rendement d’un radiateur »<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"_links":{"self":[{"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/posts\/247"}],"collection":[{"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/comments?post=247"}],"version-history":[{"count":1,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/posts\/247\/revisions"}],"predecessor-version":[{"id":249,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/posts\/247\/revisions\/249"}],"wp:attachment":[{"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/media?parent=247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/categories?post=247"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ms.iaca.fr\/wp-json\/wp\/v2\/tags?post=247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}