{"id":673969,"date":"2024-10-11T21:45:52","date_gmt":"2024-10-11T20:45:52","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=673969"},"modified":"2024-10-11T21:45:52","modified_gmt":"2024-10-11T20:45:52","slug":"cach-dung-luong-nhiet-rieng-bien-doi-giua-cac-chat","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-dung-luong-nhiet-rieng-bien-doi-giua-cac-chat\/","title":{"rendered":"C\u00e1ch dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ea5t"},"content":{"rendered":"

C\u00e1ch dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ea5t gi\u00fap hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c ch\u1ea5t h\u1ea5p th\u1ee5 v\u00e0 truy\u1ec1n nhi\u1ec7t, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

\"C\u00e1ch<\/p>\n

C\u00e1ch Dung L\u01b0\u1ee3ng Nhi\u1ec7t Ri\u00eang Bi\u1ebfn \u0110\u1ed5i Gi\u1eefa C\u00e1c Ch\u1ea5t<\/h2>\n

Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang l\u00e0 m\u1ed9t thu\u1ed9c t\u00ednh quan tr\u1ecdng c\u1ee7a v\u1eadt li\u1ec7u, th\u1ec3 hi\u1ec7n l\u01b0\u1ee3ng nhi\u1ec7t c\u1ea7n thi\u1ebft \u0111\u1ec3 n\u00e2ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u1ed9t \u0111\u01a1n v\u1ecb kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t \u0111\u00f3 l\u00ean 1\u00b0C. Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang c\u00f3 k\u00fd hi\u1ec7u l\u00e0 c<\/em> v\u00e0 \u0111\u01a1n v\u1ecb th\u01b0\u1eddng d\u00f9ng l\u00e0 J\/kg\u00b0C.<\/p>\n

C\u00f4ng Th\u1ee9c T\u00ednh Dung L\u01b0\u1ee3ng Nhi\u1ec7t Ri\u00eang<\/h2>\n

C\u00f4ng th\u1ee9c \u0111\u1ec3 t\u00ednh dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n nh\u01b0 sau:<\/p>\n

c = \\frac{Q}{m \\cdot \\Delta T}<\/em><\/p>\n

<\/p>\n

  • c: Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang (J\/kg\u00b0C)<\/li>\n
  • Q: Nhi\u1ec7t l\u01b0\u1ee3ng cung c\u1ea5p (J)<\/li>\n
  • m: Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t (kg)<\/li>\n
  • \u0394T: S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 (\u00b0C)<\/li>\n

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

    Dung L\u01b0\u1ee3ng Nhi\u1ec7t Ri\u00eang C\u1ee7a M\u1ed9t S\u1ed1 Ch\u1ea5t Th\u00f4ng Th\u01b0\u1eddng<\/h2>\n

    Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang c\u1ee7a c\u00e1c ch\u1ea5t kh\u00e1c nhau c\u00f3 th\u1ec3 r\u1ea5t kh\u00e1c bi\u1ec7t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang c\u1ee7a m\u1ed9t s\u1ed1 ch\u1ea5t ph\u1ed5 bi\u1ebfn:<\/p>\n

    <\/p>\n

      \n
    • N\u01b0\u1edbc: 4,186 J\/kg\u00b0C<\/li>\n
    • Nh\u00f4m: 897 J\/kg\u00b0C<\/li>\n
    • \u0110\u1ed3ng: 385 J\/kg\u00b0C<\/li>\n
    • S\u1eaft: 450 J\/kg\u00b0C<\/li>\n
    • Kh\u00f4ng kh\u00ed (\u1edf \u0111i\u1ec1u ki\u1ec7n ph\u00f2ng): 1,005 J\/kg\u00b0C<\/li>\n<\/ul>\n

      Nguy\u00ean Nh\u00e2n G\u00e2y Ra S\u1ef1 Kh\u00e1c Bi\u1ec7t<\/h2>\n

      C\u00e1c ch\u1ea5t kh\u00e1c nhau c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang kh\u00e1c nhau do:<\/p>\n

        \n
      1. C\u1ea5u tr\u00fac ph\u00e2n t\u1eed:<\/u> Ch\u1ea5t c\u00f3 li\u00ean k\u1ebft ph\u00e2n t\u1eed m\u1ea1nh h\u01a1n ho\u1eb7c c\u1ea5u tr\u00fac ph\u1ee9c t\u1ea1p th\u01b0\u1eddng c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang cao h\u01a1n v\u00ec c\u1ea7n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n \u0111\u1ec3 rung \u0111\u1ed9ng c\u00e1c ph\u00e2n t\u1eed.<\/li>\n
      2. Kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed:<\/u> Ch\u1ea5t c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed l\u1edbn th\u01b0\u1eddng c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang th\u1ea5p h\u01a1n v\u00ec n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c ph\u00e2n ph\u1ed1i trong c\u00e1c h\u1ea1t n\u1eb7ng h\u01a1n.<\/li>\n
      3. Tr\u1ea1ng th\u00e1i v\u1eadt l\u00fd:<\/u> Ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed th\u01b0\u1eddng c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang cao h\u01a1n ch\u1ea5t r\u1eafn v\u00ec c\u00e1c ph\u00e2n t\u1eed trong ch\u1ea5t l\u1ecfng v\u00e0 kh\u00ed c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed9ng t\u1ef1 do h\u01a1n.<\/li>\n<\/ol>\n

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

        Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang l\u00e0 m\u1ed9t thu\u1ed9c t\u00ednh quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n:<\/p>\n

          \n
        • H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t:<\/u> Hi\u1ec3u r\u00f5 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang c\u1ee7a n\u01b0\u1edbc v\u00e0 c\u00e1c ch\u1ea5t l\u00e0m l\u1ea1nh gi\u00fap thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n
        • Ch\u1ebf t\u1ea1o v\u00e0 gia c\u00f4ng kim lo\u1ea1i:<\/u> L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u00f3 dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang ph\u00f9 h\u1ee3p gi\u00fap t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh \u0111un n\u00f3ng v\u00e0 l\u00e0m ngu\u1ed9i.<\/li>\n
        • K\u1ef9 thu\u1eadt nhi\u1ec7t:<\/u> Dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng trong thi\u1ebft k\u1ebf c\u00e1c thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc kh\u00e1c.<\/li>\n<\/ul>\n

          Nh\u01b0 v\u1eady, dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n nh\u01b0ng c\u1ef1c k\u1ef3 quan tr\u1ecdng, gi\u00fap ch\u00fang ta hi\u1ec3u \u0111\u01b0\u1ee3c c\u00e1ch c\u00e1c v\u1eadt li\u1ec7u ph\u1ea3n \u1ee9ng v\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u1ee9ng d\u1ee5ng ch\u00fang v\u00e0o c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"

          C\u00e1ch dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ea5t gi\u00fap hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c ch\u1ea5t h\u1ea5p th\u1ee5 v\u00e0 truy\u1ec1n nhi\u1ec7t, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng.<\/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":"\nC\u00e1ch dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ea5t<\/title>\n<meta name=\"description\" content=\"C\u00e1ch dung l\u01b0\u1ee3ng nhi\u1ec7t ri\u00eang bi\u1ebfn \u0111\u1ed5i gi\u1eefa c\u00e1c ch\u1ea5t gi\u00fap hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch c\u00e1c ch\u1ea5t h\u1ea5p th\u1ee5 v\u00e0 truy\u1ec1n nhi\u1ec7t, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng 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