{"id":707936,"date":"2024-08-22T22:24:17","date_gmt":"2024-08-22T21:24:17","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=707936"},"modified":"2024-08-22T22:24:17","modified_gmt":"2024-08-22T21:24:17","slug":"hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/","title":{"rendered":"Hi\u1ec3u V\u1ec1 H\u1ec7 Th\u1ed1ng L\u00e0m L\u1ea1nh: Nguy\u00ean L\u00fd C\u01a1 B\u1ea3n"},"content":{"rendered":"

Hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh: nguy\u00ean l\u00fd c\u01a1 b\u1ea3n – T\u00ecm hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh, vai tr\u00f2 c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 quy tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t.<\/p>\n

\"Hi\u1ec3u<\/p>\n

Hi\u1ec3u V\u1ec1 H\u1ec7 Th\u1ed1ng L\u00e0m L\u1ea1nh: Nguy\u00ean L\u00fd C\u01a1 B\u1ea3n<\/h2>\n

H\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, t\u1eeb vi\u1ec7c b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m \u1edf t\u1ee7 l\u1ea1nh cho \u0111\u1ebfn t\u1ea1o m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c tho\u1ea3i m\u00e1i trong c\u00e1c t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch h\u1ec7 th\u1ed1ng n\u00e0y ho\u1ea1t \u0111\u1ed9ng, ch\u00fang ta c\u1ea7n t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a n\u00f3.<\/p>\n

Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng C\u1ee7a H\u1ec7 Th\u1ed1ng L\u00e0m L\u1ea1nh<\/h2>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng ch\u00ednh c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh d\u1ef1a tr\u00ean qu\u00e1 tr\u00ecnh bay h\u01a1i v\u00e0 ng\u01b0ng t\u1ee5 c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh. Qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra qua b\u1ed1n giai \u0111o\u1ea1n c\u01a1 b\u1ea3n:<\/p>\n

    \n
  1. N\u00e9n<\/strong>: Ch\u1ea5t l\u00e0m l\u1ea1nh \u1edf d\u1ea1ng kh\u00ed \u0111\u01b0\u1ee3c n\u00e9n v\u00e0o m\u1ed9t th\u1ec3 t\u00edch nh\u1ecf h\u01a1n b\u1edfi m\u00e1y n\u00e9n, l\u00e0m t\u0103ng \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u00f3.<\/li>\n
  2. Ng\u01b0ng t\u1ee5<\/strong>: Ch\u1ea5t l\u00e0m l\u1ea1nh sau khi b\u1ecb n\u00e9n s\u1ebd \u0111i qua d\u00e0n ng\u01b0ng t\u1ee5, n\u01a1i n\u00f3 trao \u0111\u1ed5i nhi\u1ec7t v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh v\u00e0 chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i kh\u00ed sang tr\u1ea1ng th\u00e1i l\u1ecfng.<\/li>\n
  3. Gi\u00e3n n\u1edf<\/strong>: Khi chuy\u1ec3n qua van ti\u1ebft l\u01b0u, ch\u1ea5t l\u00e0m l\u1ea1nh s\u1ebd gi\u1ea3m \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9, chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i l\u1ecfng sang tr\u1ea1ng th\u00e1i h\u1ed7n h\u1ee3p l\u1ecfng\/kh\u00ed.<\/li>\n
  4. Bay h\u01a1i<\/strong>: Cu\u1ed1i c\u00f9ng, ch\u1ea5t l\u00e0m l\u1ea1nh s\u1ebd \u0111i qua d\u00e0n bay h\u01a1i, n\u01a1i n\u00f3 h\u1ea5p th\u1ee5 nhi\u1ec7t t\u1eeb kh\u00f4ng gian c\u1ea7n l\u00e0m m\u00e1t v\u00e0 chuy\u1ec3n ho\u00e0n to\u00e0n sang tr\u1ea1ng th\u00e1i kh\u00ed, b\u1eaft \u0111\u1ea7u l\u1ea1i chu tr\u00ecnh.<\/li>\n<\/ol>\n

    C\u00f4ng Th\u1ee9c Li\u00ean Quan<\/h2>\n

    \u0110\u1ec3 t\u00ednh to\u00e1n hi\u1ec7u su\u1ea5t v\u00e0 n\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh l\u00e0m l\u1ea1nh, ch\u00fang ta th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n nh\u01b0:<\/p>\n

      \n
    • \u0110\u1ecbnh lu\u1eadt nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc th\u1ee9 nh\u1ea5t: \\(\\Delta Q = m \\cdot c \\cdot \\Delta T\\)\n
        \n
      • \\(\\Delta Q\\) l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t trao \u0111\u1ed5i (Joules)<\/li>\n
      • \\(m\\) l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t m\u00f4i gi\u1edbi (kg)<\/li>\n
      • \\(c\\) l\u00e0 nhi\u1ec7t dung ri\u00eang c\u1ee7a ch\u1ea5t m\u00f4i gi\u1edbi (J\/kg\u00b7K)<\/li>\n
      • \\(\\Delta T\\) l\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 (K)<\/li>\n<\/ul>\n<\/li>\n
      • Hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh (COP – Coefficient Of Performance):
        \n \\(\\text{COP} = \\frac{Q_{\\text{evap}}}{W}\\)<\/p>\n
          \n
        • \\(Q_{\\text{evap}}\\) l\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng l\u1ea5y ra t\u1eeb kh\u00f4ng gian c\u1ea7n l\u00e0m m\u00e1t<\/li>\n
        • \\(W\\) l\u00e0 c\u00f4ng su\u1ea5t y\u00eau c\u1ea7u cho qu\u00e1 tr\u00ecnh n\u00e9n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

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

          H\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf nh\u01b0:<\/p>\n

            \n
          • T\u1ee7 l\u1ea1nh v\u00e0 t\u1ee7 \u0111\u00f4ng<\/strong>: Gi\u00fap b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m, thu\u1ed1c men v\u00e0 nhi\u1ec1u s\u1ea3n ph\u1ea9m kh\u00e1c \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p.<\/li>\n
          • M\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed<\/strong>: Cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng m\u00e1t m\u1ebb v\u00e0 tho\u1ea3i m\u00e1i trong c\u00e1c t\u00f2a nh\u00e0, xe c\u1ed9.<\/li>\n
          • H\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh c\u00f4ng nghi\u1ec7p<\/strong>: S\u1eed d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y \u0111\u1ec3 b\u1ea3o qu\u1ea3n s\u1ea3n ph\u1ea9m v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t s\u1ea3n xu\u1ea5t.<\/li>\n<\/ul>\n

            Hi\u1ec3u r\u00f5 v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh, ch\u00fang ta c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00f4ng ngh\u1ec7 n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

            Hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh: nguy\u00ean l\u00fd c\u01a1 b\u1ea3n – T\u00ecm hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh, vai tr\u00f2 c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 quy tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t.<\/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":"\nHi\u1ec3u V\u1ec1 H\u1ec7 Th\u1ed1ng L\u00e0m L\u1ea1nh: Nguy\u00ean L\u00fd C\u01a1 B\u1ea3n<\/title>\n<meta name=\"description\" content=\"Hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh: nguy\u00ean l\u00fd c\u01a1 b\u1ea3n - T\u00ecm hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh, vai tr\u00f2 c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 quy tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t.\" \/>\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\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hi\u1ec3u V\u1ec1 H\u1ec7 Th\u1ed1ng L\u00e0m L\u1ea1nh: Nguy\u00ean L\u00fd C\u01a1 B\u1ea3n\" \/>\n<meta property=\"og:description\" content=\"Hi\u1ec3u v\u1ec1 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh: nguy\u00ean l\u00fd c\u01a1 b\u1ea3n - T\u00ecm hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh, vai tr\u00f2 c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 quy tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/vi\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-22T21:24:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/hieu_ve_he_thong_lam_lanh_nguyen_ly_co_ban.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=\"3 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\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/#primaryimage\",\"inLanguage\":\"vi-VN\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/hieu_ve_he_thong_lam_lanh_nguyen_ly_co_ban.png\",\"width\":1000,\"height\":1000,\"caption\":\"Hi\\u1ec3u V\\u1ec1 H\\u1ec7 Th\\u1ed1ng L\\u00e0m L\\u1ea1nh: Nguy\\u00ean L\\u00fd C\\u01a1 B\\u1ea3n\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/vi\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/\",\"name\":\"Hi\\u1ec3u V\\u1ec1 H\\u1ec7 Th\\u1ed1ng L\\u00e0m L\\u1ea1nh: Nguy\\u00ean L\\u00fd C\\u01a1 B\\u1ea3n\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/vi\/hieu-ve-he-thong-lam-lanh-nguyen-ly-co-ban\/#primaryimage\"},\"datePublished\":\"2024-08-22T21:24:17+00:00\",\"dateModified\":\"2024-08-22T21:24:17+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Hi\\u1ec3u v\\u1ec1 h\\u1ec7 th\\u1ed1ng l\\u00e0m l\\u1ea1nh: nguy\\u00ean l\\u00fd c\\u01a1 b\\u1ea3n - 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