{"id":698562,"date":"2024-11-03T22:14:24","date_gmt":"2024-11-03T21:14:24","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=698562"},"modified":"2024-11-03T22:14:24","modified_gmt":"2024-11-03T21:14:24","slug":"mo-hinh-nhiet-dong-cua-tua-bin-khi","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/mo-hinh-nhiet-dong-cua-tua-bin-khi\/","title":{"rendered":"M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed"},"content":{"rendered":"

M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed: gi\u1ea3i th\u00edch nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a nhi\u1ec7t n\u0103ng th\u00e0nh c\u01a1 n\u0103ng, t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/p>\n

\"M\u00f4<\/p>\n

M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed<\/h2>\n

Tua bin kh\u00ed l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc quan tr\u1ecdng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n v\u00e0 d\u1ee5ng c\u1ee5 h\u00e0ng kh\u00f4ng. Hi\u1ec3u v\u1ec1 m\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a ch\u00fang.<\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h2>\n

Tua bin kh\u00ed ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng t\u1eeb nhi\u00ean li\u1ec7u h\u00f3a h\u1ecdc th\u00e0nh n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m c\u00e1c giai \u0111o\u1ea1n ch\u00ednh nh\u01b0 sau:<\/p>\n

<\/p>\n

  • H\u00fat kh\u00f4ng kh\u00ed<\/li>\n
  • N\u00e9n kh\u00f4ng kh\u00ed<\/li>\n
  • \u0110\u1ed1t nhi\u00ean li\u1ec7u<\/li>\n
  • Gi\u00e3n n\u1edf kh\u00ed n\u00f3ng qua tua bin<\/li>\n
  • Th\u1ea3i kh\u00ed<\/li>\n

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

    Chu tr\u00ecnh Brayton<\/h2>\n

    Chu tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc c\u01a1 b\u1ea3n c\u1ee7a tua bin kh\u00ed l\u00e0 chu tr\u00ecnh Brayton. Chu tr\u00ecnh n\u00e0y bao g\u1ed3m c\u00e1c qu\u00e1 tr\u00ecnh sau:<\/p>\n

      \n
    1. N\u00e9n \u0111o\u1ea1n nhi\u1ec7t (Adiabatic Compression):<\/b> Kh\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c h\u00fat v\u00e0o v\u00e0 n\u00e9n l\u1ea1i, l\u00e0m t\u0103ng \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/li>\n
    2. \u0110\u1ed1t \u0111\u1eb3ng \u00e1p (Isobaric Combustion):<\/b> Nhi\u00ean li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1ed1t ch\u00e1y v\u1edbi kh\u00f4ng kh\u00ed \u1edf \u00e1p su\u1ea5t kh\u00f4ng \u0111\u1ed5i, t\u1ea1o ra kh\u00ed n\u00f3ng.<\/li>\n
    3. Gi\u00e3n n\u1edf \u0111o\u1ea1n nhi\u1ec7t (Adiabatic Expansion):<\/b> Kh\u00ed n\u00f3ng gi\u00e3n n\u1edf qua c\u00e1c c\u00e1nh tua bin, l\u00e0m quay tua bin v\u00e0 sinh c\u00f4ng.<\/li>\n
    4. Th\u1ea3i \u0111\u1eb3ng \u00e1p (Isobaric Exhaust):<\/b> Kh\u00ed \u0111\u00e3 gi\u00e3n n\u1edf \u0111\u01b0\u1ee3c th\u1ea3i ra ngo\u00e0i \u1edf \u00e1p su\u1ea5t kh\u00f4ng \u0111\u1ed5i.<\/li>\n<\/ol>\n

      Hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh Brayton c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n

      \\(\\eta = 1 – (frac{T_{4} – T_{1}}{T_{3} – T_{2}})\\)<\/p>\n

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

        \n
      • \\(T_{1}\\) v\u00e0 \\(T_{2}\\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 \u1edf \u0111\u1ea7u v\u00e0 cu\u1ed1i qu\u00e1 tr\u00ecnh n\u00e9n \u0111o\u1ea1n nhi\u1ec7t<\/li>\n
      • \\(T_{3}\\) v\u00e0 \\(T_{4}\\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 \u1edf \u0111\u1ea7u v\u00e0 cu\u1ed1i qu\u00e1 tr\u00ecnh gi\u00e3n n\u1edf \u0111o\u1ea1n nhi\u1ec7t<\/li>\n<\/ul>\n

        \u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf<\/h2>\n

        Tua bin kh\u00ed \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/p>\n

          \n
        1. Nh\u00e0 m\u00e1y \u0111i\u1ec7n:<\/b> S\u1eed d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y \u0111i\u1ec7n \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n n\u0103ng v\u1edbi hi\u1ec7u su\u1ea5t cao. C\u00e1c tua bin kh\u00ed k\u1ebft h\u1ee3p v\u1edbi chu tr\u00ecnh Rankine \u0111\u1ec3 t\u1ea1o ra chu tr\u00ecnh h\u1ed7n h\u1ee3p (Combined Cycle), gi\u00fap t\u1ed1i \u01b0u h\u00f3a n\u0103ng l\u01b0\u1ee3ng.<\/li>\n
        2. H\u00e0ng kh\u00f4ng:<\/b> Kh\u00f4ng th\u1ec3 thi\u1ebfu trong \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c, cung c\u1ea5p l\u1ef1c \u0111\u1ea9y cho m\u00e1y bay.<\/li>\n
        3. Ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7u v\u00e0 kh\u00ed:<\/b> D\u00f9ng trong c\u00e1c h\u1ec7 th\u1ed1ng n\u00e9n khi v\u00e0 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n t\u1ea1i ch\u1ed7.<\/li>\n<\/ol>\n

          Vi\u1ec7c hi\u1ec3u r\u00f5 m\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed kh\u00f4ng ch\u1ec9 gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u00e0 c\u00f2n \u0111\u00f3ng g\u00f3p v\u00e0o vi\u1ec7c gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng nh\u1edd s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

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

          M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed l\u00e0 c\u01a1 s\u1edf quan tr\u1ecdng \u0111\u1ec3 ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng tua bin kh\u00ed trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau. N\u1eafm v\u1eefng c\u00e1c ki\u1ebfn th\u1ee9c n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a thi\u1ebft b\u1ecb, g\u00f3p ph\u1ea7n v\u00e0o ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng.<\/p>\n","protected":false},"excerpt":{"rendered":"

          M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed: gi\u1ea3i th\u00edch nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a nhi\u1ec7t n\u0103ng th\u00e0nh c\u01a1 n\u0103ng, t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m 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":"\nM\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed<\/title>\n<meta name=\"description\" content=\"M\u00f4 h\u00ecnh nhi\u1ec7t \u0111\u1ed9ng c\u1ee7a tua bin kh\u00ed: gi\u1ea3i th\u00edch nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a nhi\u1ec7t n\u0103ng th\u00e0nh c\u01a1 n\u0103ng, t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.\" 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