{"id":40149,"date":"2019-09-18T01:31:52","date_gmt":"2019-09-18T00:31:52","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/que-es-la-conduccion-de-calor-en-una-pared-plana-grande-definicion\/"},"modified":"2020-01-08T10:45:34","modified_gmt":"2020-01-08T09:45:34","slug":"que-es-la-conduccion-de-calor-en-una-pared-plana-grande-definicion","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/es\/que-es-la-conduccion-de-calor-en-una-pared-plana-grande-definicion\/","title":{"rendered":"\u00bfQu\u00e9 es la conducci\u00f3n de calor en una pared plana grande? Definici\u00f3n"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Conducci\u00f3n de calor en una pared plana grande.\u00a0Considere la pared plana de espesor 2L, en la cual hay una generaci\u00f3n de calor uniforme y constante por unidad de volumen, qV [W \/ m3].\u00a0Ingenieria termal<\/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>Conducci\u00f3n de calor en una pared plana grande<\/h2>\n<p><strong><b>Conducci\u00f3n de calor en una pared plana grande<\/b><\/strong><\/p>\n<p>Considere la pared plana de espesor 2L, en la cual hay\u00a0<strong>una generaci\u00f3n de calor uniforme y constante<\/strong>\u00a0por unidad de volumen,\u00a0<strong>q\u00a0<sub>V<\/sub>\u00a0[W \/ m\u00a0<sup>3<\/sup>\u00a0]<\/strong>\u00a0.\u00a0El plano central se toma como el origen de x y la losa se extiende a + L a la derecha y &#8211; L a la izquierda.\u00a0Para\u00a0<a title=\"Conductividad t\u00e9rmica\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-la-conductividad-termica-definicion\/\">la conductividad t\u00e9rmica<\/a>\u00a0constante\u00a0k, la forma apropiada de la ecuaci\u00f3n de calor es:<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-equation-heat-generation-equation.png\"><img loading=\"lazy\" class=\"size-medium wp-image-20229 aligncenter lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-equation-heat-generation-equation-300x96.png\" alt=\"ecuaci\u00f3n de calor - generaci\u00f3n de calor - ecuaci\u00f3n\" width=\"300\" height=\"96\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-equation-heat-generation-equation-300x96.png\" \/><\/a><\/p>\n<p>La soluci\u00f3n general de esta ecuaci\u00f3n es:<\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-solution.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20230 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-solution.png\" alt=\"ecuaci\u00f3n de conducci\u00f3n de calor - soluci\u00f3n general\" width=\"290\" height=\"150\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-general-solution.png\" \/><\/a><\/p>\n<p><span>donde C\u00a0<\/span><sub><span>1<\/span><\/sub><span>\u00a0y C\u00a0<\/span><sub><span>2<\/span><\/sub><span>\u00a0son las constantes de la integraci\u00f3n.<\/span><\/p>\n<p><span>1)<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Heat-Conduction-in-a-Large-Plane-Wall-figure.png\"><img loading=\"lazy\" class=\"alignright size-medium wp-image-20228 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Heat-Conduction-in-a-Large-Plane-Wall-figure-300x276.png\" alt=\"Conducci\u00f3n de calor en una pared plana grande\" width=\"300\" height=\"276\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/Heat-Conduction-in-a-Large-Plane-Wall-figure-300x276.png\" \/><\/a><span>Calcule la distribuci\u00f3n de temperatura, T (x), a trav\u00e9s de esta gruesa pared plana, si:<\/span><\/p>\n<ul>\n<li><span>las temperaturas en ambas superficies son 15.0 \u00b0 C<\/span><\/li>\n<li><span>El grosor de esta pared es de 2L = 10 mm.<\/span><\/li>\n<li><span>la conductividad de los materiales es k = 2.8 W \/ mK (corresponde a di\u00f3xido de uranio a 1000 \u00b0 C)<\/span><\/li>\n<li><span>la tasa de calor volum\u00e9trica es q\u00a0<\/span><sub><span>V<\/span><\/sub><span>\u00a0= 10\u00a0<\/span><sup><span>6<\/span><\/sup><span>\u00a0W \/ m\u00a0<\/span><sup><span>3<\/span><\/sup><\/li>\n<\/ul>\n<p><span>En este caso, las superficies se mantienen a temperaturas dadas T\u00a0<\/span><sub><span>s, 1<\/span><\/sub><span>\u00a0y T\u00a0<\/span><sub><span>s, 2<\/span><\/sub><span>\u00a0.\u00a0Esto corresponde a la\u00a0<\/span><a title=\"Condici\u00f3n l\u00edmite de Dirichlet - Condici\u00f3n l\u00edmite de tipo I\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/heat-transfer\/thermal-conduction\/heat-conduction-equation\/dirichlet-boundary-condition-type-i-boundary-condition\/\"><span>condici\u00f3n l\u00edmite de Dirichlet<\/span><\/a><span>\u00a0.\u00a0Adem\u00e1s, este problema es t\u00e9rmicamente sim\u00e9trico y, por lo tanto, podemos usar tambi\u00e9n\u00a0<\/span><a title=\"L\u00edmite adiab\u00e1tico - simetr\u00eda t\u00e9rmica\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/heat-transfer\/thermal-conduction\/heat-conduction-equation\/adiabatic-boundary-thermal-symmetry\/\"><span>la condici\u00f3n de l\u00edmite de simetr\u00eda t\u00e9rmica<\/span><\/a><span>\u00a0.\u00a0Las constantes pueden evaluarse utilizando la sustituci\u00f3n en la soluci\u00f3n general y tienen la forma:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-boundary-conditions.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20231 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-boundary-conditions.png\" alt=\"ecuaci\u00f3n de conducci\u00f3n de calor - condiciones de contorno\" width=\"428\" height=\"110\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-boundary-conditions.png\" \/><\/a><\/p>\n<p><span>La distribuci\u00f3n de temperatura resultante y la temperatura de la l\u00ednea central (x = 0) (m\u00e1xima) en esta pared plana en estas condiciones l\u00edmite espec\u00edficas ser\u00e1n:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-solution.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20232 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-solution.png\" alt=\"ecuaci\u00f3n de conducci\u00f3n de calor - soluci\u00f3n\" width=\"608\" height=\"210\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-conduction-equation-solution.png\" \/><\/a><\/p>\n<p><span>El\u00a0<\/span><a title=\"Densidad de flujo de calor - Flujo t\u00e9rmico\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/heat-transfer\/introduction-to-heat-transfer\/heat-flux-density-thermal-flux\/\"><span>flujo de calor<\/span><\/a><span>\u00a0en cualquier punto, q\u00a0<\/span><sub><span>x<\/span><\/sub><span>\u00a0[Wm\u00a0<\/span><sup><span>-2<\/span><\/sup><span>\u00a0], en la pared puede, por supuesto, determinarse usando la distribuci\u00f3n de temperatura y con la\u00a0<\/span><a title=\"Ley de Fourier de conducci\u00f3n t\u00e9rmica\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-la-ley-de-conduccion-termica-de-fourier-definicion\/\"><strong><span>ley de Fourier<\/span><\/strong><\/a><span>\u00a0.\u00a0Tenga en cuenta que, con la generaci\u00f3n de calor, el flujo de calor ya no es independiente de x, por lo tanto:<\/span><\/p>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-condution-through-wall.png\"><img loading=\"lazy\" class=\"aligncenter size-full wp-image-20233 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-condution-through-wall.png\" alt=\"Condici\u00f3n de calor a trav\u00e9s de la pared\" width=\"315\" height=\"178\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/heat-condution-through-wall.png\" \/><\/a><\/p>\n<p><strong><span>Ejemplo de ecuaci\u00f3n de calor: problema con la soluci\u00f3n<\/span><\/strong><\/p>\n<\/div>\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>Este art\u00edculo se basa en la traducci\u00f3n autom\u00e1tica del art\u00edculo original en ingl\u00e9s. Para m\u00e1s informaci\u00f3n vea el art\u00edculo en ingl\u00e9s. Puedes ayudarnos. Si desea corregir la traducci\u00f3n, env\u00edela a: translations@nuclear-power.com o complete el formulario de traducci\u00f3n en l\u00ednea. Agradecemos su ayuda, actualizaremos la traducci\u00f3n lo antes posible. Gracias.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Conducci\u00f3n de calor en una pared plana grande.\u00a0Considere la pared plana de espesor 2L, en la cual hay una generaci\u00f3n de calor uniforme y constante por unidad de volumen, qV [W \/ m3].\u00a0Ingenieria termal Conducci\u00f3n de calor en una pared plana grande Conducci\u00f3n de calor en una pared plana grande Considere la pared plana de &#8230; <a title=\"\u00bfQu\u00e9 es la conducci\u00f3n de calor en una pared plana grande? Definici\u00f3n\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/es\/que-es-la-conduccion-de-calor-en-una-pared-plana-grande-definicion\/\" aria-label=\"M\u00e1s en \u00bfQu\u00e9 es la conducci\u00f3n de calor en una pared plana grande? Definici\u00f3n\">Leer m\u00e1s<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[16],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00bfQu\u00e9 es la conducci\u00f3n de calor en una pared plana grande? Definici\u00f3n<\/title>\n<meta name=\"description\" content=\"Conducci\u00f3n de calor en una pared plana grande. Considere la pared plana de espesor 2L, en la cual hay una generaci\u00f3n de calor uniforme y constante por unidad de volumen, qV [W \/ m3]. 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