{"id":698147,"date":"2024-10-20T18:57:14","date_gmt":"2024-10-20T17:57:14","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=698147"},"modified":"2024-10-20T18:57:14","modified_gmt":"2024-10-20T17:57:14","slug":"cai-thien-hieu-suat-chu-trinh-carnot","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cai-thien-hieu-suat-chu-trinh-carnot\/","title":{"rendered":"C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot"},"content":{"rendered":"

C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot: Kh\u00e1m ph\u00e1 quy tr\u00ecnh v\u00e0 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9ng trong h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng, ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n

\"C\u1ea3i<\/p>\n

C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot<\/h2>\n

Chu tr\u00ecnh Carnot l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh l\u00fd t\u01b0\u1edfng trong nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc, bi\u1ec3u hi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed1i \u0111a m\u00e0 b\u1ea5t k\u1ef3 h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c n\u00e0o c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c. Hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh Carnot ph\u1ee5 thu\u1ed9c v\u00e0o hai y\u1ebfu t\u1ed1 ch\u00ednh: nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n nhi\u1ec7t cao (\\(T_{H}\\)) v\u00e0 nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n nhi\u1ec7t th\u1ea5p (\\(T_{L}\\)). \u0110\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 xem x\u00e9t nh\u1eefng c\u00e1ch sau:<\/p>\n

    \n
  1. T\u0103ng nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n nhi\u1ec7t cao (\\(T_{H}\\))<\/li>\n
  2. Gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 ngu\u1ed3n nhi\u1ec7t th\u1ea5p (\\(T_{L}\\))<\/li>\n<\/ol>\n

    Hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh Carnot<\/h2>\n

    Hi\u1ec7u su\u1ea5t \u03b7 c\u1ee7a chu tr\u00ecnh Carnot \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n

    \\[
    \n\\eta = 1 – \\frac{T_{L}}{T_{H}}
    \n\\]\n

    Trong \u0111\u00f3, \\(T_{H}\\) v\u00e0 \\(T_{L}\\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ngu\u1ed3n nhi\u1ec7t cao v\u00e0 ngu\u1ed3n nhi\u1ec7t th\u1ea5p, th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb Kelvin (K).<\/p>\n

    C\u00e1ch t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t cao (\\(T_{H}\\))<\/h2>\n
      \n
    • S\u1eed d\u1ee5ng v\u1eadt li\u1ec7u ch\u1ecbu nhi\u1ec7t cao:<\/strong> V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn nh\u01b0 h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t, g\u1ed1m s\u1ee9 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t c\u00f3 th\u1ec3 gi\u00fap t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t cao.<\/li>\n
    • \u1ee8ng d\u1ee5ng c\u00f4ng ngh\u1ec7 cao:<\/strong> C\u00e1c c\u00f4ng ngh\u1ec7 t\u00e2n ti\u1ebfn nh\u01b0 l\u00f2 \u0111\u1ed1t plasma, c\u00f3 kh\u1ea3 n\u0103ng t\u1ea1o ra nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng \\(T_{H}\\).<\/li>\n<\/ul>\n

      C\u00e1ch gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t th\u1ea5p (\\(T_{L}\\))<\/h2>\n
        \n
      • S\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3:<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng n\u01b0\u1edbc, kh\u00f4ng kh\u00ed ho\u1eb7c th\u1eadm ch\u00ed b\u1eb1ng c\u00e1c ch\u1ea5t l\u00e0m m\u00e1t nh\u00e2n t\u1ea1o c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t th\u1ea5p.<\/li>\n
      • T\u1eadn d\u1ee5ng m\u00f4i tr\u01b0\u1eddng xung quanh:<\/strong> S\u1eed d\u1ee5ng ngu\u1ed3n nhi\u1ec7t th\u1ea5p t\u1eeb m\u00f4i tr\u01b0\u1eddng, nh\u01b0 n\u01b0\u1edbc bi\u1ec3n s\u00e2u ho\u1eb7c t\u1ea7ng kh\u00ed quy\u1ec3n cao, gi\u00fap gi\u1ea3m \\(T_{L}\\) m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean.<\/li>\n<\/ul>\n

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

        Hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh Carnot c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n th\u00f4ng qua c\u00e1c bi\u1ec7n ph\u00e1p t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t cao (\\(T_{H}\\)) v\u00e0 gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n nhi\u1ec7t th\u1ea5p (\\(T_{L}\\)). Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u v\u00e0 c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn, c\u00f9ng v\u1edbi s\u1ef1 t\u1eadn d\u1ee5ng m\u00f4i tr\u01b0\u1eddng t\u1ef1 nhi\u00ean, l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a chu tr\u00ecnh n\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"

        C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot: Kh\u00e1m ph\u00e1 quy tr\u00ecnh v\u00e0 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9ng trong h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng, ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/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\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot<\/title>\n<meta name=\"description\" content=\"C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t chu tr\u00ecnh Carnot: Kh\u00e1m ph\u00e1 quy tr\u00ecnh v\u00e0 bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9ng trong h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng, ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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