{"id":696979,"date":"2024-08-26T21:53:13","date_gmt":"2024-08-26T20:53:13","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=696979"},"modified":"2024-08-26T21:53:13","modified_gmt":"2024-08-26T20:53:13","slug":"tinh-dan-hoi-cua-nuoc-trong-cac-cau-truc-noi","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/tinh-dan-hoi-cua-nuoc-trong-cac-cau-truc-noi\/","title":{"rendered":"T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i"},"content":{"rendered":"<p class=\"sidekick\">T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i: Kh\u00e1m ph\u00e1 c\u00e1ch n\u01b0\u1edbc bi\u1ebfn \u0111\u1ed5i d\u01b0\u1edbi \u00e1p l\u1ef1c v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a t\u00e0u, phao v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh n\u1ed5i kh\u00e1c.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/tinh_dan_hoi_cua_nuoc_trong_cac_cau_truc_noi.png\" alt=\"T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>T\u00ednh \u0110\u00e0n H\u1ed3i C\u1ee7a N\u01b0\u1edbc Trong C\u00e1c C\u1ea5u Tr\u00fac N\u1ed5i<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, t\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i nh\u01b0 t\u00e0u thuy\u1ec1n v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng tr\u00ean bi\u1ec3n. T\u00ednh \u0111\u00e0n h\u1ed3i n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng \u0111\u1ee1 v\u00e0 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c c\u1ea5u tr\u00fac n\u00e0y khi ch\u1ecbu c\u00e1c l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb m\u00f4i tr\u01b0\u1eddng nh\u01b0 s\u00f3ng bi\u1ec3n v\u00e0 gi\u00f3.<\/p>\n<h2>T\u00ednh \u0110\u00e0n H\u1ed3i c\u1ee7a N\u01b0\u1edbc L\u00e0 G\u00ec?<\/h2>\n<p>T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc l\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a n\u01b0\u1edbc thay \u0111\u1ed5i th\u1ec3 t\u00edch d\u01b0\u1edbi \u00e1p su\u1ea5t v\u00e0 sau \u0111\u00f3 quay tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i ban \u0111\u1ea7u khi \u00e1p su\u1ea5t \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c di\u1ec5n t\u1ea3 b\u1edfi h\u1ec7 s\u1ed1 \u0111\u00e0n h\u1ed3i th\u1ec3 t\u00edch \\(K\\), \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n<p>\\(K = &#8211; V \\frac{\\partial P}{\\partial V}\\)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>\\(V\\) l\u00e0 th\u1ec3 t\u00edch c\u1ee7a n\u01b0\u1edbc.<\/li>\n<li>\\(\\partial P\\) l\u00e0 s\u1ef1 thay \u0111\u1ed5i \u00e1p su\u1ea5t.<\/li>\n<li>\\(\\partial V\\) l\u00e0 s\u1ef1 thay \u0111\u1ed5i th\u1ec3 t\u00edch.<\/li>\n<\/ul>\n<h2>T\u00ednh \u0110\u00e0n H\u1ed3i v\u00e0 \u1ea2nh H\u01b0\u1edfng T\u1edbi C\u1ea5u Tr\u00fac N\u1ed5i<\/h2>\n<p>Khi n\u01b0\u1edbc ch\u1ecbu \u00e1p su\u1ea5t t\u1eeb c\u00e1c l\u1ef1c t\u00e1c \u0111\u1ed9ng b\u00ean ngo\u00e0i, th\u1ec3 t\u00edch c\u1ee7a n\u00f3 c\u00f3 th\u1ec3 b\u1ecb n\u00e9n l\u1ea1i m\u1ed9t c\u00e1ch r\u1ea5t nh\u1eb9. Trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 thay \u0111\u1ed5i nh\u1ecf trong vi\u1ec7c ph\u00e2n b\u1ed1 \u00e1p l\u1ef1c v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh t\u1ed5ng th\u1ec3 c\u1ee7a c\u1ea5u tr\u00fac.<\/p>\n<p>C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i g\u1ed3m:<\/p>\n<ol>\n<li>\u00c1p su\u1ea5t m\u00f4i tr\u01b0\u1eddng: \u00c1p su\u1ea5t cao h\u01a1n l\u00e0m cho n\u01b0\u1edbc \u00edt \u0111\u00e0n h\u1ed3i h\u01a1n.<\/li>\n<li>Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc: N\u01b0\u1edbc v\u1edbi \u0111\u1ed9 m\u1eb7n cao ho\u1eb7c b\u1ecb nhi\u1ec5m b\u1ea9n c\u00f3 th\u1ec3 c\u00f3 h\u1ec7 s\u1ed1 \u0111\u00e0n h\u1ed3i kh\u00e1c nhau.<\/li>\n<li>Nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc: Nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n th\u01b0\u1eddng l\u00e0m t\u0103ng t\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc.<\/li>\n<\/ol>\n<h2>\u1ee8ng D\u1ee5ng Trong K\u1ef9 Thu\u1eadt Nhi\u1ec7t<\/h2>\n<p>Hi\u1ec3u r\u00f5 t\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc l\u00e0 c\u1ea7n thi\u1ebft trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 t\u00ednh to\u00e1n c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i. Nh\u1eefng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 bao g\u1ed3m:<\/p>\n<ul>\n<li><b>Thi\u1ebft k\u1ebf t\u00e0u thuy\u1ec1n:<\/b> \u0110\u1ea3m b\u1ea3o t\u00e0u thuy\u1ec1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t n\u01b0\u1edbc \u1edf c\u00e1c \u0111\u1ed9 s\u00e2u kh\u00e1c nhau m\u00e0 kh\u00f4ng m\u1ea5t \u1ed5n \u0111\u1ecbnh.<\/li>\n<li><b>C\u00e1c c\u00f4ng tr\u00ecnh d\u01b0\u1edbi n\u01b0\u1edbc:<\/b> V\u00ed d\u1ee5 nh\u01b0 \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn d\u1ea7u d\u01b0\u1edbi bi\u1ec3n, c\u1ea7n thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t l\u1edbn t\u1eeb n\u01b0\u1edbc xung quanh.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t:<\/b> Trong c\u00e1c h\u1ec7 th\u1ed1ng s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p, n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t l\u00e0m m\u00e1t v\u00e0 c\u1ea7n c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 l\u00e0m vi\u1ec7c.<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong k\u1ef9 thu\u1eadt nhi\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i. Hi\u1ec3u v\u00e0 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c t\u00ednh \u0111\u00e0n h\u1ed3i n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a c\u00e1c thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt, t\u1eeb \u0111\u00f3 b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n tr\u01b0\u1edbc nh\u1eefng thay \u0111\u1ed5i v\u00e0 t\u00e1c \u0111\u1ed9ng t\u1eeb m\u00f4i tr\u01b0\u1eddng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i: Kh\u00e1m ph\u00e1 c\u00e1ch n\u01b0\u1edbc bi\u1ebfn \u0111\u1ed5i d\u01b0\u1edbi \u00e1p l\u1ef1c v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a t\u00e0u, phao v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh n\u1ed5i kh\u00e1c.<\/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>T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i<\/title>\n<meta name=\"description\" content=\"T\u00ednh \u0111\u00e0n h\u1ed3i c\u1ee7a n\u01b0\u1edbc trong c\u00e1c c\u1ea5u tr\u00fac n\u1ed5i: Kh\u00e1m ph\u00e1 c\u00e1ch n\u01b0\u1edbc bi\u1ebfn \u0111\u1ed5i d\u01b0\u1edbi \u00e1p l\u1ef1c v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a t\u00e0u, phao v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh n\u1ed5i kh\u00e1c.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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