{"id":703727,"date":"2024-07-23T22:34:46","date_gmt":"2024-07-23T21:34:46","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=703727"},"modified":"2024-07-23T22:34:46","modified_gmt":"2024-07-23T21:34:46","slug":"dong-ho-xoay-do-luu-luong-phat-sinh-xoay","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/dong-ho-xoay-do-luu-luong-phat-sinh-xoay\/","title":{"rendered":"\u0110\u1ed3ng h\u1ed3 xo\u00e1y | \u0110o l\u01b0u l\u01b0\u1ee3ng, Ph\u00e1t sinh xo\u00e1y"},"content":{"rendered":"<p class=\"sidekick\">\u0110\u1ed3ng h\u1ed3 xo\u00e1y: thi\u1ebft b\u1ecb \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ef1a tr\u00ean hi\u1ec7n t\u01b0\u1ee3ng ph\u00e1t sinh xo\u00e1y, gi\u00fap gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/dong_ho_xoay_do_luu_luong_phat_sinh_xoay.png\" alt=\"\u0110\u1ed3ng h\u1ed3 xo\u00e1y | \u0110o l\u01b0u l\u01b0\u1ee3ng, Ph\u00e1t sinh xo\u00e1y\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u0110\u1ed3ng H\u1ed3 Xo\u00e1y: \u0110o L\u01b0u L\u01b0\u1ee3ng v\u00e0 Ph\u00e1t Sinh Xo\u00e1y<\/h2>\n<p>\u0110\u1ed3ng h\u1ed3 xo\u00e1y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111o l\u01b0u l\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u01b0\u1edbc, kh\u00ed, ho\u1eb7c h\u01a1i. \u0110\u1ed3ng h\u1ed3 xo\u00e1y ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd ph\u00e1t sinh xo\u00e1y khi ch\u1ea5t l\u1ecfng ch\u1ea3y qua m\u1ed9t v\u1eadt c\u1ea3n.<\/p>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>Khi m\u1ed9t d\u00f2ng ch\u1ea3y \u0111i qua m\u1ed9t v\u1eadt c\u1ea3n (th\u01b0\u1eddng l\u00e0 m\u1ed9t t\u1ea5m ch\u1eafn), n\u00f3 t\u1ea1o ra c\u00e1c xo\u00e1y \u1edf hai b\u00ean v\u1eadt c\u1ea3n. Nh\u1eefng xo\u00e1y n\u00e0y g\u1ecdi l\u00e0 xo\u00e1y K\u00e1rm\u00e1n. S\u1ed1 l\u01b0\u1ee3ng c\u00e1c xo\u00e1y n\u00e0y t\u1ec9 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1ee7a d\u00f2ng ch\u1ea3y v\u00e0 t\u00e1c \u0111\u1ed9ng v\u00e0o c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c g\u1eafn trong \u0111\u1ed3ng h\u1ed3 xo\u00e1y. C\u1ea3m bi\u1ebfn n\u00e0y ghi l\u1ea1i s\u1ed1 l\u01b0\u1ee3ng xo\u00e1y v\u00e0 t\u1eeb \u0111\u00f3 t\u00ednh to\u00e1n t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y.<\/p>\n<h2>\u0110o L\u01b0u L\u01b0\u1ee3ng<\/h2>\n<p>Qu\u00e1 tr\u00ecnh \u0111o l\u01b0u l\u01b0\u1ee3ng b\u1eb1ng \u0111\u1ed3ng h\u1ed3 xo\u00e1y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua c\u00f4ng th\u1ee9c:<\/p>\n<p style=\"text-align:center\">Q = \\frac{f}{k}<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>Q: L\u01b0u l\u01b0\u1ee3ng (th\u01b0\u1eddng \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb l\u00edt\/ph\u00fat ho\u1eb7c m\u00e9t kh\u1ed1i\/gi\u1edd)<\/li>\n<li>f: T\u1ea7n s\u1ed1 c\u1ee7a c\u00e1c xo\u00e1y (xo\u00e1y\/ph\u00fat ho\u1eb7c xo\u00e1y\/gi\u00e2y)<\/li>\n<li>k: H\u1eb1ng s\u1ed1 c\u1ee7a \u0111\u1ed3ng h\u1ed3 xo\u00e1y (\u0111\u1eb7c tr\u01b0ng c\u1ee7a t\u1eebng lo\u1ea1i thi\u1ebft b\u1ecb)<\/li>\n<\/ul>\n<h2>\u01afu \u0110i\u1ec3m v\u00e0 \u1ee8ng D\u1ee5ng<\/h2>\n<ul>\n<li>\u0110\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 linh ho\u1ea1t v\u1edbi nhi\u1ec1u lo\u1ea1i ch\u1ea5t l\u1ecfng kh\u00e1c nhau<\/li>\n<li>\u00cdt b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 nh\u1edbt v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ch\u1ea5t l\u1ecfng<\/li>\n<li>Kh\u1ea3 n\u0103ng \u0111o l\u01b0\u1eddng trong d\u00f2ng ch\u1ea3y r\u1ed9ng, t\u1eeb t\u1ed1c \u0111\u1ed9 th\u1ea5p \u0111\u1ebfn cao<\/li>\n<li>D\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec<\/li>\n<\/ul>\n<p>Nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y, \u0111\u1ed3ng h\u1ed3 xo\u00e1y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p, bao g\u1ed3m c\u1ea3 s\u1ea3n xu\u1ea5t, x\u1eed l\u00fd n\u01b0\u1edbc, v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng HVAC (s\u01b0\u1edfi, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed).<\/p>\n<h2>T\u1ed5ng K\u1ebft<\/h2>\n<p>\u0110\u1ed3ng h\u1ed3 xo\u00e1y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch v\u00e0 hi\u1ec7u qu\u1ea3 trong vi\u1ec7c \u0111o l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y c\u1ee7a ch\u1ea5t l\u1ecfng. Kh\u1ea3 n\u0103ng \u0111o ch\u00ednh x\u00e1c, d\u1ec5 s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o tr\u00ec khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn h\u00e0ng \u0111\u1ea7u trong nhi\u1ec1u \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. Hi\u1ec3u r\u00f5 v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 xo\u00e1y s\u1ebd gi\u00fap ch\u00fang ta t\u1eadn d\u1ee5ng t\u1ed1i \u0111a thi\u1ebft b\u1ecb n\u00e0y trong c\u00e1c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed3ng h\u1ed3 xo\u00e1y: thi\u1ebft b\u1ecb \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ef1a tr\u00ean hi\u1ec7n t\u01b0\u1ee3ng ph\u00e1t sinh xo\u00e1y, gi\u00fap gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd d\u00f2ng ch\u1ea3y ch\u1ea5t l\u1ecfng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p.<\/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 - 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