{"id":46362,"date":"2019-10-22T00:19:25","date_gmt":"2019-10-21T23:19:25","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quelle-est-la-densite-de-vapeur-volume-specifique-de-vapeur-definition\/"},"modified":"2019-10-22T00:19:25","modified_gmt":"2019-10-21T23:19:25","slug":"quelle-est-la-densite-de-vapeur-volume-specifique-de-vapeur-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quelle-est-la-densite-de-vapeur-volume-specifique-de-vapeur-definition\/","title":{"rendered":"Quelle est la densit\u00e9 de vapeur &#8211; Volume sp\u00e9cifique de vapeur &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\"><span>Densit\u00e9 de vapeur &#8211; Volume de vapeur sp\u00e9cifique.\u00a0La densit\u00e9 de vapeur change de mani\u00e8re significative avec la pression et la temp\u00e9rature.\u00a0Ces param\u00e8tres sont tabul\u00e9s dans ce que l\u2019on appelle des \u00abtables de vapeur\u00bb.\u00a0G\u00e9nie thermique<\/span><\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Densit\u00e9 de vapeur<\/span><\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-16092 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min-300x256.png\" alt=\"vapeur s\u00e8che-satur\u00e9e-vapeur-min\" width=\"300\" height=\"256\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/dry-steam-saturated-vapor-min-300x256.png\" \/><\/a><span>L&#8217;eau et la vapeur sont un moyen commun car leurs propri\u00e9t\u00e9s sont tr\u00e8s\u00a0<\/span><strong><span>connues<\/span><\/strong><span>\u00a0.\u00a0Leurs propri\u00e9t\u00e9s sont regroup\u00e9es dans ce que l\u2019on appelle des\u00a0<\/span><strong><span>\u00ab\u00a0<\/span><\/strong><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/steam-tables\/\"><strong><span>tables de vapeur<\/span><\/strong><\/a><strong><span>\u00a0\u00bb<\/span><\/strong><span>\u00a0.\u00a0Dans ces tableaux, les propri\u00e9t\u00e9s de base et cl\u00e9s, telles que la pression, la temp\u00e9rature, l\u2019enthalpie, la\u00a0<\/span><strong><span>densit\u00e9<\/span><\/strong><span>\u00a0et la chaleur sp\u00e9cifique, sont pr\u00e9sent\u00e9es le long de la courbe de saturation vapeur-liquide en fonction de la temp\u00e9rature et de la pression.<\/span><\/p>\n<p><span>La densit\u00e9 () de toute substance est l&#8217;inverse de son volume sp\u00e9cifique (\u03bd).<\/span><\/p>\n<p><span>\u03c1 = m \/ V = \u200b\u200b1 \/ \u03bd<\/span><\/p>\n<p><span>Le volume sp\u00e9cifique (\u03bd) d&#8217;une substance est le volume total (V) de cette substance divis\u00e9 par la masse totale (m) de cette substance (volume par unit\u00e9 de masse).\u00a0Il a des unit\u00e9s de m\u00e8tre cube par kilogramme (m\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0\/ kg).<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/steam-properties-enthaply-density-volume-specific-heat-temperature.png\"><img loading=\"lazy\" class=\"aligncenter size-large wp-image-16049 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/steam-properties-enthaply-density-volume-specific-heat-temperature-1024x618.png\" alt=\"propri\u00e9t\u00e9s de la vapeur - tables de vapeur\" width=\"669\" height=\"404\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/steam-properties-enthaply-density-volume-specific-heat-temperature-1024x618.png\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Densit\u00e9 de fluide supercritique<\/span><\/h2>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Supercritical-water-properties-density-enthalpy.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-16212 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Supercritical-water-properties-density-enthalpy-273x300.png\" alt=\"Propri\u00e9t\u00e9s de l'eau supercritique\" width=\"273\" height=\"300\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Supercritical-water-properties-density-enthalpy-273x300.png\" \/><\/a><span>Un\u00a0<\/span><a title=\"Fluide supercritique - Eau supercritique\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-steam-what-is-steam\/supercritical-fluid-supercritical-water\/\"><strong><span>fluide supercritique<\/span><\/strong><\/a><span>\u00a0est un fluide\u00a0<\/span><strong><span>soumis<\/span><\/strong><span>\u00a0\u00e0 des\u00a0<strong>pressions sup\u00e9rieures<\/strong>\u00a0\u00e0 ses\u00a0<\/span><strong><span>valeurs critiques<\/span><\/strong><span>\u00a0thermodynamiques\u00a0.\u00a0Aux pressions critiques et supercritiques, un fluide est consid\u00e9r\u00e9 comme une substance monophas\u00e9e malgr\u00e9 le fait que toutes les propri\u00e9t\u00e9s thermophysiques subissent des changements importants dans les\u00a0<\/span><strong><span>r\u00e9gions<\/span><\/strong><span>\u00a0critiques et\u00a0<strong>pseudocritiques<\/strong>\u00a0.<\/span><\/p>\n<p><span>\u00c0 des pressions sup\u00e9rieures \u00e0 la pression critique, les propri\u00e9t\u00e9s de l&#8217;eau dans le r\u00e9acteur changent\u00a0<\/span><strong><span>progressivement<\/span><\/strong><span>\u00a0et de\u00a0<\/span><strong><span>fa\u00e7on continue,<\/span><\/strong><span>\u00a0passant de celles associ\u00e9es \u00e0 un\u00a0<\/span><strong><span>liquide<\/span><\/strong><span>\u00a0(haute densit\u00e9, faible compressibilit\u00e9) \u00e0 celles d&#8217;un\u00a0<\/span><strong><span>gaz<\/span><\/strong><span>\u00a0(faible densit\u00e9, grande compressibilit\u00e9)\u00a0<\/span><strong><span>sans changement de phase<\/span><\/strong><span>\u00a0.\u00a0Il n&#8217;y a pas de changement dans la phase de l&#8217;eau dans le noyau.\u00a0Par ailleurs, les propri\u00e9t\u00e9s physiques telles que la densit\u00e9, la chaleur sp\u00e9cifique, l&#8217;enthalpie sp\u00e9cifique subissent des modifications importantes, en particulier dans la plage de temp\u00e9rature de la\u00a0<\/span><strong><span>r\u00e9gion pseudocritique<\/span><\/strong><span>\u00a0(pour 25 MPa, entre 372 \u00b0 C et 392 \u00b0 C).<\/span><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\"><\/div>\n<div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\">\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;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","protected":false},"excerpt":{"rendered":"<p>Densit\u00e9 de vapeur &#8211; Volume de vapeur sp\u00e9cifique.\u00a0La densit\u00e9 de vapeur change de mani\u00e8re significative avec la pression et la temp\u00e9rature.\u00a0Ces param\u00e8tres sont tabul\u00e9s dans ce que l\u2019on appelle des \u00abtables de vapeur\u00bb.\u00a0G\u00e9nie thermique Densit\u00e9 de vapeur L&#8217;eau et la vapeur sont un moyen commun car leurs propri\u00e9t\u00e9s sont tr\u00e8s\u00a0connues\u00a0.\u00a0Leurs propri\u00e9t\u00e9s sont regroup\u00e9es dans ce &#8230; <a title=\"Quelle est la densit\u00e9 de vapeur &#8211; Volume sp\u00e9cifique de vapeur &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quelle-est-la-densite-de-vapeur-volume-specifique-de-vapeur-definition\/\" aria-label=\"En savoir plus sur Quelle est la densit\u00e9 de vapeur &#8211; Volume sp\u00e9cifique de vapeur &#8211; D\u00e9finition\">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":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quelle est la densit\u00e9 de vapeur - Volume sp\u00e9cifique de vapeur - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Densit\u00e9 de vapeur - Volume de vapeur sp\u00e9cifique. 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