{"id":704404,"date":"2024-10-19T05:21:15","date_gmt":"2024-10-19T04:21:15","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=704404"},"modified":"2024-10-19T05:21:15","modified_gmt":"2024-10-19T04:21:15","slug":"bo-khuech-tan-thiet-ke-ung-dung-trong-may-tuabin","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/bo-khuech-tan-thiet-ke-ung-dung-trong-may-tuabin\/","title":{"rendered":"B\u1ed9 Khu\u1ebfch T\u00e1n | Thi\u1ebft K\u1ebf &#038; \u1ee8ng D\u1ee5ng trong M\u00e1y Tuabin"},"content":{"rendered":"<p class=\"sidekick\">B\u1ed9 khu\u1ebfch t\u00e1n: T\u00ecm hi\u1ec3u thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng trong m\u00e1y tuabin, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t n\u0103ng th\u00e0nh c\u01a1 n\u0103ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/bo_khuech_tan_thiet_ke_ung_dung_trong_may_tuabin.png\" alt=\"B\u1ed9 Khu\u1ebfch T\u00e1n | Thi\u1ebft K\u1ebf &#038; \u1ee8ng D\u1ee5ng trong M\u00e1y Tuabin\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>B\u1ed9 Khu\u1ebfch T\u00e1n | Thi\u1ebft K\u1ebf &#038; \u1ee8ng D\u1ee5ng trong M\u00e1y Tuabin<\/h2>\n<p>B\u1ed9 khu\u1ebfch t\u00e1n l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn quan tr\u1ecdng trong m\u00e1y tuabin, gi\u00fap chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed9ng c\u1ee7a ch\u1ea5t l\u1ecfng th\u00e0nh \u00e1p su\u1ea5t. Thi\u1ebft k\u1ebf v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c t\u0103ng hi\u1ec7u qu\u1ea3 c\u1ee7a m\u00e1y tuabin. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o vi\u1ec7c t\u00ecm hi\u1ec3u c\u1ea5u t\u1ea1o v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n trong m\u00e1y tuabin.<\/p>\n<h2>Thi\u1ebft K\u1ebf c\u1ee7a B\u1ed9 Khu\u1ebfch T\u00e1n<\/h2>\n<p>B\u1ed9 khu\u1ebfch t\u00e1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng v\u00e0 t\u0103ng \u00e1p su\u1ea5t c\u1ee7a n\u00f3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh v\u00e0 nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n:<\/p>\n<ul>\n<li><b>H\u00ecnh d\u1ea1ng:<\/b> B\u1ed9 khu\u1ebfch t\u00e1n th\u01b0\u1eddng c\u00f3 d\u1ea1ng h\u00ecnh n\u00f3n ho\u1eb7c h\u00ecnh tr\u1ee5 m\u1edf r\u1ed9ng t\u1eeb nh\u1ecf \u0111\u1ebfn l\u1edbn. Vi\u1ec7c m\u1edf r\u1ed9ng n\u00e0y gi\u00fap gi\u1ea3m v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y.<\/li>\n<li><b>G\u00f3c m\u1edf:<\/b> G\u00f3c m\u1edf c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 gi\u1ea3m t\u1ed1c \u0111\u1ed9 v\u00e0 t\u0103ng \u00e1p su\u1ea5t. G\u00f3c m\u1edf l\u1edbn c\u00f3 th\u1ec3 t\u1ea1o ra d\u00f2ng ch\u1ea3y h\u1ed7n lo\u1ea1n, trong khi g\u00f3c m\u1edf nh\u1ecf \u0111\u1ea3m b\u1ea3o d\u00f2ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><b>Chi\u1ec1u d\u00e0i:<\/b> Chi\u1ec1u d\u00e0i c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t. B\u1ed9 khu\u1ebfch t\u00e1n d\u00e0i h\u01a1n c\u00f3 xu h\u01b0\u1edbng hi\u1ec7u qu\u1ea3 h\u01a1n trong vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n d\u1ef1a tr\u00ean \u0111\u1ecbnh lu\u1eadt Bernoulli, m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa v\u1eadn t\u1ed1c v\u00e0 \u00e1p su\u1ea5t c\u1ee7a d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng. Khi d\u00f2ng ch\u1ea3y \u0111i qua b\u1ed9 khu\u1ebfch t\u00e1n, v\u1eadn t\u1ed1c gi\u1ea3m v\u00e0 \u00e1p su\u1ea5t t\u0103ng do s\u1ef1 m\u1edf r\u1ed9ng c\u1ee7a di\u1ec7n t\u00edch m\u1eb7t c\u1eaft ngang.<\/p>\n<p><b>Ph\u01b0\u01a1ng tr\u00ecnh Bernoulli:<\/b><\/p>\n<p>\\[ P + \\frac{1}{2} \\rho v^2 + \\rho gh = \\text{constant} \\]\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li> \\( P \\) = \u00c1p su\u1ea5t t\u0129nh<\/li>\n<li> \\( \\rho \\) = M\u1eadt \u0111\u1ed9 c\u1ee7a ch\u1ea5t l\u1ecfng<\/li>\n<li> \\( v \\) = V\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y<\/li>\n<li> \\( g \\) = Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng<\/li>\n<li> \\( h \\) = \u0110\u1ed9 cao so v\u1edbi m\u1ed1c chu\u1ea9n<\/li>\n<\/ul>\n<h2>\u1ee8ng D\u1ee5ng c\u1ee7a B\u1ed9 Khu\u1ebfch T\u00e1n trong M\u00e1y Tuabin<\/h2>\n<p>B\u1ed9 khu\u1ebfch t\u00e1n trong m\u00e1y tuabin \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch gi\u1ea3m t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u0103ng \u00e1p su\u1ea5t d\u00f2ng ch\u1ea3y. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3:<\/p>\n<ol>\n<li><b>Tuabin h\u01a1i:<\/b> Trong c\u00e1c tuabin h\u01a1i, b\u1ed9 khu\u1ebfch t\u00e1n gi\u00fap gi\u1ea3m t\u1ed1c \u0111\u1ed9 c\u1ee7a h\u01a1i n\u01b0\u1edbc sau khi n\u00f3 \u0111i qua c\u00e1c c\u00e1nh qu\u1ea1t, t\u1ea1o ra \u00e1p su\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea9y h\u01a1i n\u01b0\u1edbc ra kh\u1ecfi tuabin.<\/li>\n<li><b>Tuabin kh\u00ed:<\/b> T\u01b0\u01a1ng t\u1ef1, trong c\u00e1c tuabin kh\u00ed, b\u1ed9 khu\u1ebfch t\u00e1n gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t b\u1eb1ng c\u00e1ch gi\u1ea3m t\u1ed1c \u0111\u1ed9 v\u00e0 t\u0103ng \u00e1p su\u1ea5t c\u1ee7a kh\u00ed th\u1ea3i, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t \u0111\u1ed1t ch\u00e1y.<\/li>\n<li><b>M\u00e1y n\u00e9n kh\u00ed:<\/b> Trong m\u00e1y n\u00e9n kh\u00ed, b\u1ed9 khu\u1ebfch t\u00e1n ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 t\u0103ng \u00e1p su\u1ea5t kh\u00ed n\u00e9n, gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng n\u00e9n.<\/li>\n<\/ol>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>B\u1ed9 khu\u1ebfch t\u00e1n l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong m\u00e1y tuabin, gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh v\u1eadn t\u1ed1c v\u00e0 \u00e1p su\u1ea5t c\u1ee7a d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng. Hi\u1ec3u bi\u1ebft v\u1ec1 thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ed9 khu\u1ebfch t\u00e1n kh\u00f4ng ch\u1ec9 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e1y tuabin m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u1ed9 khu\u1ebfch t\u00e1n: T\u00ecm hi\u1ec3u thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng trong m\u00e1y tuabin, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i nhi\u1ec7t n\u0103ng th\u00e0nh c\u01a1 n\u0103ng.<\/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 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