{"id":709249,"date":"2024-07-21T12:00:00","date_gmt":"2024-07-21T11:00:00","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=709249"},"modified":"2024-07-21T12:00:00","modified_gmt":"2024-07-21T11:00:00","slug":"he-so-truyen-nhiet-la-gi","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/he-so-truyen-nhiet-la-gi\/","title":{"rendered":"H\u1ec7 S\u1ed1 Truy\u1ec1n Nhi\u1ec7t L\u00e0 G\u00ec?"},"content":{"rendered":"

H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u kh\u00e1i ni\u1ec7m, c\u00e1ch t\u00ednh v\u00e0 vai tr\u00f2 c\u1ee7a h\u1ec7 s\u1ed1 n\u00e0y trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n

\"H\u1ec7<\/p>\n

H\u1ec7 S\u1ed1 Truy\u1ec1n Nhi\u1ec7t L\u00e0 G\u00ec?<\/h2>\n

Trong ng\u00e0nh nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc<\/b> v\u00e0 k\u1ef9 thu\u1eadt nhi\u1ec7t<\/b>, h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t (ho\u1eb7c h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t) l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng quan tr\u1ecdng bi\u1ec3u th\u1ecb kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u hay m\u1ed9t h\u1ec7 th\u1ed1ng. H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u b\u1eb1ng ch\u1eef U<\/i> ho\u1eb7c k<\/i>. N\u00f3 \u0111o l\u01b0\u1eddng l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u01b0\u1ee3c truy\u1ec1n qua m\u1ed9t \u0111\u01a1n v\u1ecb di\u1ec7n t\u00edch c\u1ee7a v\u1eadt li\u1ec7u trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh d\u01b0\u1edbi m\u1ed9t gradient nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3.<\/p>\n

C\u00f4ng Th\u1ee9c C\u01a1 B\u1ea3n<\/h2>\n

C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 t\u00ednh h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t l\u00e0:<\/p>\n

U = \\frac{Q}{A * \u0394T * t}<\/i><\/p>\n

    \n
  • Q<\/b>: Nhi\u1ec7t l\u01b0\u1ee3ng truy\u1ec1n qua (Joules)<\/li>\n
  • A<\/b>: Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (m2<\/sup>)<\/li>\n
  • \u0394T<\/b>: Gradient nhi\u1ec7t \u0111\u1ed9 (K ho\u1eb7c \u00b0C)<\/li>\n
  • t<\/b>: Th\u1eddi gian (seconds)<\/li>\n<\/ul>\n

    \u00dd Ngh\u0129a C\u1ee7a H\u1ec7 S\u1ed1 Truy\u1ec1n Nhi\u1ec7t<\/h2>\n

    H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t c\u00f3 \u00fd ngh\u0129a r\u1ea5t l\u1edbn trong th\u1ef1c t\u1ebf. V\u00ed d\u1ee5, trong ng\u00e0nh x\u00e2y d\u1ef1ng, hi\u1ec3u bi\u1ebft v\u1ec1 h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng gi\u00fap c\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf c\u00e1c t\u00f2a nh\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u01a1n. Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, vi\u1ec7c ki\u1ec3m so\u00e1t h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t nh\u01b0 l\u00f2 h\u01a1i, t\u1ee7 l\u1ea1nh, ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb l\u00e0m m\u00e1t kh\u00e1c.<\/p>\n

    V\u00ed D\u1ee5 V\u00e0 \u1ee8ng D\u1ee5ng<\/h2>\n
      \n
    1. Thi\u1ebft B\u1ecb L\u00e0m M\u00e1t:<\/b> H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u trong t\u1ee7 l\u1ea1nh r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng ti\u00eau t\u1ed1n qu\u00e1 nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng.<\/li>\n
    2. C\u00f4ng Tr\u00ecnh X\u00e2y D\u1ef1ng:<\/b> C\u00e1c v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng nh\u01b0 g\u1ea1ch, b\u00ea t\u00f4ng, v\u00e0 g\u1ed7 \u0111\u1ec1u c\u00f3 c\u00e1c h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t kh\u00e1c nhau, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t c\u1ee7a t\u00f2a nh\u00e0.<\/li>\n
    3. S\u1ea3n Xu\u1ea5t N\u0103ng L\u01b0\u1ee3ng:<\/b> Trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n, h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn hi\u1ec7u su\u1ea5t s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ol>\n

      K\u1ebft Lu\u1eadn<\/h2>\n

      Hi\u1ec3u r\u00f5 v\u1ec1 h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng gi\u00fap ch\u00fang ta c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n. T\u1eeb vi\u1ec7c gi\u1ea3m thi\u1ec3u s\u1ef1 m\u1ea5t m\u00e1t n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c t\u00f2a nh\u00e0 \u0111\u1ebfn vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u00e1c quy tr\u00ecnh c\u00f4ng nghi\u1ec7p, h\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t \u0111\u00f3ng m\u1ed9t vai tr\u00f2 thi\u1ebft y\u1ebfu trong m\u1ecdi m\u1eb7t c\u1ee7a k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"

      H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t l\u00e0 g\u00ec? T\u00ecm hi\u1ec3u kh\u00e1i ni\u1ec7m, c\u00e1ch t\u00ednh v\u00e0 vai tr\u00f2 c\u1ee7a h\u1ec7 s\u1ed1 n\u00e0y trong c\u00e1c \u1ee9ng d\u1ee5ng nhi\u1ec7t h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt 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":"\nH\u1ec7 S\u1ed1 Truy\u1ec1n Nhi\u1ec7t L\u00e0 G\u00ec?<\/title>\n<meta name=\"description\" content=\"H\u1ec7 s\u1ed1 truy\u1ec1n nhi\u1ec7t l\u00e0 g\u00ec? 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