{"id":44097,"date":"2019-10-14T18:40:43","date_gmt":"2019-10-14T17:40:43","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-que-lunite-de-conductivite-thermique-definition\/"},"modified":"2020-02-18T10:04:29","modified_gmt":"2020-02-18T09:04:29","slug":"quest-ce-que-lunite-de-conductivite-thermique-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-lunite-de-conductivite-thermique-definition\/","title":{"rendered":"Qu’est-ce que l’unit\u00e9 de conductivit\u00e9 thermique – D\u00e9finition"},"content":{"rendered":"
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Unit\u00e9s de conductivit\u00e9 thermique.\u00a0En unit\u00e9s SI, la conductivit\u00e9 thermique est mesur\u00e9e en watts par m\u00e8tre-kelvin – W \/ (m \u00b7 K).\u00a0Dans les unit\u00e9s imp\u00e9riales, la conductivit\u00e9 thermique est mesur\u00e9e en BTU \/ (h \u00b7 ft\u22c5 \u00b0 F).\u00a0G\u00e9nie thermique<\/div>\n<\/div>\n
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Unit\u00e9s de conductivit\u00e9 thermique<\/h2>\n

\"Exemple<\/a><\/p>\n

Unit\u00e9s de conductivit\u00e9 thermique<\/strong><\/p>\n

En unit\u00e9s SI,\u00a0la conductivit\u00e9 thermique<\/strong>\u00a0est mesur\u00e9e en watts par m\u00e8tre-kelvin –\u00a0W \/ (m \u00b7 K)<\/strong>\u00a0.\u00a0Dans les unit\u00e9s imp\u00e9riales, la conductivit\u00e9 thermique est mesur\u00e9e en\u00a0BTU \/ (h \u00b7 ft\u22c5 \u00b0 F)<\/strong>\u00a0.<\/p>\n

Notez que\u00a0British Thermal Unit<\/a>\u00a0(unit\u00e9: BTU) est d\u00e9finie comme \u00e9tant la quantit\u00e9 de chaleur qui doit \u00eatre absorb\u00e9e par une livre d\u2019eau pour augmenter sa temp\u00e9rature de 1 \u00b0 F \u00e0 la temp\u00e9rature \u00e0 laquelle l\u2019eau a sa plus grande densit\u00e9 (environ degr\u00e9s\u00a0Fahrenheit<\/a>\u00a0).<\/p>\n

D’autres unit\u00e9s \u00e9troitement li\u00e9es \u00e0 la conductivit\u00e9 thermique sont couramment utilis\u00e9es dans les industries de la construction et du textile.\u00a0Le secteur de la construction utilise des unit\u00e9s telles que la\u00a0valeur R (r\u00e9sistance)<\/strong>\u00a0, exprim\u00e9e en \u00e9paisseur du mat\u00e9riau normalis\u00e9e \u00e0 la conductivit\u00e9 thermique, et dans des conditions uniformes, le rapport entre la diff\u00e9rence de temp\u00e9rature entre un isolant et la chaleur densit\u00e9 de flux \u00e0 travers elle: R (x) = \u2206T \/ q.\u00a0Plus la valeur R est \u00e9lev\u00e9e, plus un mat\u00e9riau emp\u00eache le transfert de chaleur.\u00a0Comme on peut le constater, la r\u00e9sistance d\u00e9pend de l’\u00e9paisseur du produit.<\/p>\n<\/div>\n<\/div>\n

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Cet article est bas\u00e9 sur la traduction automatique de l’article original en anglais. Pour plus d’informations, voir l’article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l’adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Unit\u00e9s de conductivit\u00e9 thermique.\u00a0En unit\u00e9s SI, la conductivit\u00e9 thermique est mesur\u00e9e en watts par m\u00e8tre-kelvin – W \/ (m \u00b7 K).\u00a0Dans les unit\u00e9s imp\u00e9riales, la conductivit\u00e9 thermique est mesur\u00e9e en BTU \/ (h \u00b7 ft\u22c5 \u00b0 F).\u00a0G\u00e9nie thermique Unit\u00e9s de conductivit\u00e9 thermique Unit\u00e9s de conductivit\u00e9 thermique En unit\u00e9s SI,\u00a0la conductivit\u00e9 thermique\u00a0est mesur\u00e9e en watts par … Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"\nQu'est-ce que l'unit\u00e9 de conductivit\u00e9 thermique - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Unit\u00e9s de conductivit\u00e9 thermique. 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