{"id":700464,"date":"2024-08-12T18:13:16","date_gmt":"2024-08-12T17:13:16","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=700464"},"modified":"2024-08-12T18:13:16","modified_gmt":"2024-08-12T17:13:16","slug":"trao-doi-nhiet-trong-tua-bin-gio","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/trao-doi-nhiet-trong-tua-bin-gio\/","title":{"rendered":"Trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3"},"content":{"rendered":"<p class=\"sidekick\">Trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3: Gi\u1ea3i th\u00edch c\u00e1ch qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a tua bin gi\u00f3 trong s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/trao_doi_nhiet_trong_tua_bin_gio.png\" alt=\"Trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Trao \u0110\u1ed5i Nhi\u1ec7t Trong Tua Bin Gi\u00f3<\/h2>\n<p>Tua bin gi\u00f3 l\u00e0 m\u1ed9t trong nh\u1eefng ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. Qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i \u0111\u1ed9ng n\u0103ng t\u1eeb gi\u00f3 th\u00e0nh \u0111i\u1ec7n n\u0103ng trong tua bin gi\u00f3 li\u00ean quan \u0111\u1ebfn nhi\u1ec1u quy tr\u00ecnh c\u01a1 h\u1ecdc v\u00e0 nhi\u1ec7t h\u1ecdc ph\u1ee9c t\u1ea1p. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd t\u1eadp trung v\u00e0o vi\u1ec7c trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3, m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng nh\u01b0ng th\u01b0\u1eddng \u00edt \u0111\u01b0\u1ee3c ch\u00fa \u00fd.<\/p>\n<h2>C\u01a1 Ch\u1ebf Trao \u0110\u1ed5i Nhi\u1ec7t<\/h2>\n<p>\u0110\u1ed1i v\u1edbi tua bin gi\u00f3, trao \u0111\u1ed5i nhi\u1ec7t x\u1ea3y ra \u1edf nhi\u1ec1u b\u1ed9 ph\u1eadn, bao g\u1ed3m rotor, h\u1ed9p s\u1ed1, v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n. C\u00e1c b\u1ed9 ph\u1eadn n\u00e0y \u0111\u1ec1u sinh ra nhi\u1ec7t khi ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a tua bin.<\/p>\n<h3>1. Rotor<\/h3>\n<p>Rotor l\u00e0 ph\u1ea7n \u0111\u1ea7u ti\u00ean ti\u1ebfp x\u00fac v\u1edbi gi\u00f3 v\u00e0 bi\u1ebfn \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng gi\u00f3 th\u00e0nh c\u01a1 n\u0103ng. Qu\u00e1 tr\u00ecnh n\u00e0y t\u1ea1o ra m\u1ed9t ph\u1ea7n nhi\u1ec7t do l\u1ef1c ma s\u00e1t v\u00e0 \u0111\u1ed9ng c\u01a1 kh\u00ed \u0111\u1ed9ng h\u1ecdc tr\u00ean c\u00e1c c\u00e1nh qu\u1ea1t. \u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh n\u00e0y, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u v\u00e0 c\u00f4ng ngh\u1ec7 gi\u1ea3m ma s\u00e1t nh\u01b0 h\u1ec7 th\u1ed1ng \u1ed5 bi \u0111\u1eb7c bi\u1ec7t.<\/p>\n<h3>2. H\u1ed9p S\u1ed1<\/h3>\n<p>H\u1ed9p s\u1ed1 (gearbox) trong tua bin gi\u00f3 ch\u1ecbu tr\u00e1ch nhi\u1ec7m truy\u1ec1n \u0111\u1ed9ng n\u0103ng t\u1eeb rotor t\u1edbi m\u00e1y ph\u00e1t \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh truy\u1ec1n \u0111\u1ed9ng n\u00e0y c\u0169ng sinh ra nhi\u1ec7t do ma s\u00e1t gi\u1eefa c\u00e1c b\u00e1nh r\u0103ng. Vi\u1ec7c l\u00e0m m\u00e1t h\u1ed9p s\u1ed1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua h\u1ec7 th\u1ed1ng b\u00f4i tr\u01a1n k\u1ebft h\u1ee3p v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn t\u1ea3n nhi\u1ec7t.<\/p>\n<h3>3. M\u00e1y Ph\u00e1t \u0110i\u1ec7n<\/h3>\n<p>M\u00e1y ph\u00e1t \u0111i\u1ec7n chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng c\u01a1 h\u1ecdc th\u00e0nh \u0111i\u1ec7n n\u0103ng, qu\u00e1 tr\u00ecnh n\u00e0y c\u0169ng t\u1ea1o ra nhi\u1ec7t. \u0110\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 ph\u1eadn \u0111i\u1ec7n t\u1eed b\u00ean trong, c\u00e1c tua bin gi\u00f3 th\u01b0\u1eddng d\u00f9ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng kh\u00f4ng kh\u00ed ho\u1eb7c n\u01b0\u1edbc.<\/p>\n<h2>Ph\u01b0\u01a1ng Ph\u00e1p L\u00e0m M\u00e1t<\/h2>\n<ul>\n<li><b>L\u00e0m M\u00e1t B\u1eb1ng D\u1ea7u:<\/b> H\u1ec7 th\u1ed1ng n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho h\u1ed9p s\u1ed1. D\u1ea7u b\u00f4i tr\u01a1n kh\u00f4ng nh\u1eefng gi\u1ea3m ma s\u00e1t m\u00e0 c\u00f2n gi\u00fap d\u1eabn nhi\u1ec7t ra kh\u1ecfi c\u00e1c b\u00e1nh r\u0103ng.<\/li>\n<li><b>L\u00e0m M\u00e1t B\u1eb1ng Kh\u00f4ng Kh\u00ed:<\/b> M\u1ed9t s\u1ed1 b\u1ed9 ph\u1eadn nh\u01b0 rotor v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng lu\u1ed3ng kh\u00f4ng kh\u00ed t\u1ef1 nhi\u00ean ho\u1eb7c c\u01b0\u1ee1ng b\u1ee9c. C\u00e1c c\u00e1nh qu\u1ea1t ph\u1ee5 tr\u1ee3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3.<\/li>\n<li><b>L\u00e0m M\u00e1t B\u1eb1ng N\u01b0\u1edbc:<\/b> H\u1ec7 th\u1ed1ng n\u00e0y hi\u1ec7u qu\u1ea3 h\u01a1n trong vi\u1ec7c truy\u1ec1n nhi\u1ec7t v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u00e1y ph\u00e1t \u0111i\u1ec7n c\u00f4ng su\u1ea5t l\u1edbn.<\/li>\n<\/ul>\n<h2>C\u00f4ng Th\u1ee9c T\u00ednh To\u00e1n \u0110\u1ecbnh L\u01b0\u1ee3ng<\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 l\u01b0\u1ee3ng nhi\u1ec7t sinh ra v\u00e0 c\u1ea7n ph\u1ea3i l\u00e0m m\u00e1t, c\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng nhi\u1ec1u c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n. M\u1ed9t trong nh\u1eefng c\u00f4ng th\u1ee9c ph\u1ed5 bi\u1ebfn l\u00e0:<\/p>\n<p>Q = mc\\Delta T<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>Q l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t (Joules)<\/li>\n<li>m l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t l\u1ecfng l\u00e0m m\u00e1t (kg)<\/li>\n<li>c l\u00e0 nhi\u1ec7t dung ri\u00eang c\u1ee7a ch\u1ea5t l\u1ecfng (J\/kg\u00b7K)<\/li>\n<li>\\(\\Delta T\\) l\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 (K)<\/li>\n<\/ul>\n<p>Th\u00f4ng qua c\u00f4ng th\u1ee9c n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 t\u00ednh to\u00e1n c\u1ea7n bao nhi\u00eau n\u0103ng l\u01b0\u1ee3ng \u0111\u1ec3 l\u00e0m m\u00e1t t\u1eebng b\u1ed9 ph\u1eadn c\u1ee7a tua bin, gi\u00fap h\u1ecd l\u1ef1a ch\u1ecdn v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ph\u00f9 h\u1ee3p.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh ph\u1ee9c t\u1ea1p, y\u00eau c\u1ea7u s\u1ef1 ch\u00fa \u00fd \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 b\u1ea3o \u0111\u1ea3m hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a h\u1ec7 th\u1ed1ng. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3 l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 gi\u1ea3m thi\u1ec3u s\u1ef1 hao m\u00f2n v\u00e0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111i\u1ec7n ngh\u1ecb. Th\u00f4ng qua vi\u1ec7c n\u1eafm r\u00f5 c\u00e1c c\u01a1 ch\u1ebf v\u00e0 c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n, c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf v\u00e0 duy tr\u00ec c\u00e1c tua bin gi\u00f3 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trao \u0111\u1ed5i nhi\u1ec7t trong tua bin gi\u00f3: Gi\u1ea3i th\u00edch c\u00e1ch qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i nhi\u1ec7t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a tua bin gi\u00f3 trong s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng s\u1ea1ch.<\/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":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Trao \u0111\u1ed5i nhi\u1ec7t 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