{"id":700832,"date":"2024-11-09T08:40:57","date_gmt":"2024-11-09T07:40:57","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=700832"},"modified":"2024-11-09T08:40:57","modified_gmt":"2024-11-09T07:40:57","slug":"chuyen-nhiet-trong-chat-long-sieu-han","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/","title":{"rendered":"Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n"},"content":{"rendered":"

Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n: T\u00ecm hi\u1ec3u c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng, \u1ee9ng d\u1ee5ng v\u00e0 nguy\u00ean l\u00fd c\u1ee7a chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng \u1edf tr\u1ea1ng th\u00e1i si\u00eau h\u1ea1n.<\/p>\n

\"Chuy\u1ec3n<\/p>\n

Chuy\u1ec3n Nhi\u1ec7t Trong Ch\u1ea5t L\u1ecfng Si\u00eau H\u1ea1n<\/h2>\n

Ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n l\u00e0 m\u1ed9t tr\u1ea1ng th\u00e1i \u0111\u1eb7c bi\u1ec7t c\u1ee7a v\u1eadt ch\u1ea5t, n\u01a1i ch\u1ea5t l\u1ecfng v\u01b0\u1ee3t qua \u0111i\u1ec3m t\u1edbi h\u1ea1n c\u1ee7a n\u00f3 v\u00e0 s\u1edf h\u1eefu c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u1ed9c \u0111\u00e1o kh\u00f4ng gi\u1ed1ng nh\u01b0 \u1edf c\u00e1c pha l\u1ecfng hay pha kh\u00ed th\u00f4ng th\u01b0\u1eddng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt.<\/p>\n

Chuy\u1ec3n Nhi\u1ec7t L\u00e0 G\u00ec?<\/h2>\n

Chuy\u1ec3n nhi\u1ec7t l\u00e0 qu\u00e1 tr\u00ecnh truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t gi\u1eefa c\u00e1c v\u1eadt th\u1ec3 ho\u1eb7c gi\u1eefa c\u00e1c ph\u1ea7n kh\u00e1c nhau c\u1ee7a c\u00f9ng m\u1ed9t v\u1eadt th\u1ec3. N\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t lu\u00f4n chuy\u1ec3n t\u1eeb n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n t\u1edbi n\u01a1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p h\u01a1n cho \u0111\u1ebfn khi \u0111\u1ea1t t\u1edbi tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng nhi\u1ec7t.<\/p>\n

Ch\u1ea5t L\u1ecfng Si\u00eau H\u1ea1n<\/h2>\n

Khi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t c\u1ee7a m\u1ed9t ch\u1ea5t v\u01b0\u1ee3t qu\u00e1 c\u00e1c gi\u00e1 tr\u1ecb t\u1edbi h\u1ea1n c\u1ee7a n\u00f3, n\u00f3 s\u1ebd chuy\u1ec3n sang tr\u1ea1ng th\u00e1i si\u00eau h\u1ea1n. \u0110i\u1ec3m t\u1edbi h\u1ea1n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nhi\u1ec7t \u0111\u1ed9 t\u1edbi h\u1ea1n \\(T_c\\) v\u00e0 \u00e1p su\u1ea5t t\u1edbi h\u1ea1n \\(P_c\\). Trong tr\u1ea1ng th\u00e1i n\u00e0y, ranh gi\u1edbi gi\u1eefa pha l\u1ecfng v\u00e0 pha kh\u00ed bi\u1ebfn m\u1ea5t, v\u00e0 ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n c\u00f3 th\u1ec3 th\u1ea9m th\u1ea5u nh\u01b0 kh\u00ed nh\u01b0ng l\u1ea1i gi\u1eef c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u1ea5t l\u1ecfng nh\u01b0 \u0111\u1ed9 nh\u1edbt v\u00e0 kh\u1ea3 n\u0103ng h\u00f2a tan t\u1ed1t.<\/p>\n

Ph\u01b0\u01a1ng Tr\u00ecnh Chuy\u1ec3n Nhi\u1ec7t<\/h2>\n

Trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n, ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n \u0111\u1ec3 m\u00f4 t\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng chuy\u1ec3n nhi\u1ec7t l\u00e0 ph\u01b0\u01a1ng tr\u00ecnh d\u1eabn nhi\u1ec7t:<\/p>\n

\n\\( \\frac{\\partial T}{\\partial t} = \\alpha \\nabla^2 T \\)\n<\/p>\n

Trong \u0111\u00f3:<\/p>\n

<\/p>\n

  • \\( T \\): Nhi\u1ec7t \u0111\u1ed9<\/li>\n
  • \\( t \\): Th\u1eddi gian<\/li>\n
  • \\( \\alpha \\): H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t<\/li>\n
  • \\( \\nabla^2 \\): To\u00e1n t\u1eed Laplace<\/li>\n

    <\/u1><\/p>\n

    C\u01a1 Ch\u1ebf Chuy\u1ec3n Nhi\u1ec7t<\/h2>\n

    C\u01a1 ch\u1ebf chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n bao g\u1ed3m:<\/p>\n

    <\/p>\n

  • \u0110i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed1i l\u01b0u: Do \u0111\u1ed9 nh\u1edbt th\u1ea5p v\u00e0 s\u1ef1 th\u00e2m nh\u1eadp cao, ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n di chuy\u1ec3n d\u1ec5 d\u00e0ng, gi\u00fap t\u0103ng c\u01b0\u1eddng qu\u00e1 tr\u00ecnh \u0111\u1ed1i l\u01b0u nhi\u1ec7t.<\/li>\n
  • Truy\u1ec1n nhi\u1ec7t d\u1eabn nhi\u1ec7t: Ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n c\u00f3 t\u00ednh d\u1eabn nhi\u1ec7t cao, gi\u00fap truy\u1ec1n nhi\u1ec7t nhanh ch\u00f3ng qua c\u00e1c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac.<\/li>\n
  • \u0110\u1ed1i l\u01b0u h\u1ed7n h\u1ee3p: S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa d\u1eabn nhi\u1ec7t v\u00e0 \u0111\u1ed1i l\u01b0u t\u1ea1o ra m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed1i l\u01b0u h\u1ed7n h\u1ee3p t\u0103ng c\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt.<\/li>\n

    <\/o1><\/p>\n

    \u1ee8ng D\u1ee5ng Th\u1ef1c Ti\u1ec5n<\/h2>\n

    Ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf, bao g\u1ed3m:<\/p>\n

    <\/p>\n

  • Chi\u1ebft xu\u1ea5t v\u00e0 h\u00f2a tan:<\/b> S\u1eed d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p th\u1ef1c ph\u1ea9m v\u00e0 d\u01b0\u1ee3c ph\u1ea9m \u0111\u1ec3 chi\u1ebft xu\u1ea5t ch\u1ea5t h\u00f3a h\u1ecdc v\u00e0 h\u1ee3p ch\u1ea5t t\u1eeb nguy\u00ean li\u1ec7u.<\/li>\n
  • L\u00e0m m\u00e1t v\u00e0 t\u1ea3n nhi\u1ec7t:<\/b> S\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3 cao, ch\u1eb3ng h\u1ea1n nh\u01b0 trong l\u00e0m m\u00e1t m\u00e1y t\u00ednh ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t l\u1edbn.<\/li>\n
  • N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o:<\/b> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi ho\u1eb7c \u0111\u1ecba nhi\u1ec7t, nh\u1edd kh\u1ea3 n\u0103ng truy\u1ec1n v\u00e0 l\u01b0u tr\u1eef nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i.<\/li>\n

    <\/u1><\/p>\n

    Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u c\u00f3 ti\u1ec1m n\u0103ng l\u1edbn v\u00e0 \u1ee9ng d\u1ee5ng phong ph\u00fa trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p. Hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1c c\u01a1 ch\u1ebf chuy\u1ec3n nhi\u1ec7t v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n s\u1ebd gi\u00fap ch\u00fang ta t\u1eadn d\u1ee5ng t\u1ed1i \u0111a l\u1ee3i \u00edch c\u1ee7a ng\u00e0nh n\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n: T\u00ecm hi\u1ec3u c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng, \u1ee9ng d\u1ee5ng v\u00e0 nguy\u00ean l\u00fd c\u1ee7a chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng \u1edf tr\u1ea1ng th\u00e1i si\u00eau h\u1ea1n.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\nChuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n<\/title>\n<meta name=\"description\" content=\"Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n: T\u00ecm hi\u1ec3u c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng, \u1ee9ng d\u1ee5ng v\u00e0 nguy\u00ean l\u00fd c\u1ee7a chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng \u1edf tr\u1ea1ng th\u00e1i si\u00eau h\u1ea1n.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n\" \/>\n<meta property=\"og:description\" content=\"Chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng si\u00eau h\u1ea1n: T\u00ecm hi\u1ec3u c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng, \u1ee9ng d\u1ee5ng v\u00e0 nguy\u00ean l\u00fd c\u1ee7a chuy\u1ec3n nhi\u1ec7t trong ch\u1ea5t l\u1ecfng \u1edf tr\u1ea1ng th\u00e1i si\u00eau h\u1ea1n.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-11-09T07:40:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chuyen_nhiet_trong_chat_long_sieu_han.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"4 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"vi-VN\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chuyen_nhiet_trong_chat_long_sieu_han.png\",\"width\":1000,\"height\":1000,\"caption\":\"Chuy\\u1ec3n nhi\\u1ec7t trong ch\\u1ea5t l\\u1ecfng si\\u00eau h\\u1ea1n\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/\",\"name\":\"Chuy\\u1ec3n nhi\\u1ec7t trong ch\\u1ea5t l\\u1ecfng si\\u00eau h\\u1ea1n\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/#primaryimage\"},\"datePublished\":\"2024-11-09T07:40:57+00:00\",\"dateModified\":\"2024-11-09T07:40:57+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Chuy\\u1ec3n nhi\\u1ec7t trong ch\\u1ea5t l\\u1ecfng si\\u00eau h\\u1ea1n: T\\u00ecm hi\\u1ec3u c\\u00e1c hi\\u1ec7n t\\u01b0\\u1ee3ng, \\u1ee9ng d\\u1ee5ng v\\u00e0 nguy\\u00ean l\\u00fd c\\u1ee7a chuy\\u1ec3n nhi\\u1ec7t trong ch\\u1ea5t l\\u1ecfng \\u1edf tr\\u1ea1ng th\\u00e1i si\\u00eau h\\u1ea1n.\",\"inLanguage\":\"vi-VN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-chat-long-sieu-han\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/700832"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/comments?post=700832"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/posts\/700832\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/media?parent=700832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/categories?post=700832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/vi\/wp-json\/wp\/v2\/tags?post=700832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}