{"id":709990,"date":"2024-08-15T01:34:57","date_gmt":"2024-08-15T00:34:57","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=709990"},"modified":"2024-08-15T01:34:57","modified_gmt":"2024-08-15T00:34:57","slug":"cach-hoat-dong-cua-dong-co-phan-luc","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-dong-co-phan-luc\/","title":{"rendered":"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c"},"content":{"rendered":"<p class=\"sidekick\">C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c: t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ng\u00e0nh h\u00e0ng kh\u00f4ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_hoat_dong_cua_dong_co_phan_luc.png\" alt=\"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c<\/h2>\n<p>\u0110\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u1ed9ng c\u01a1 cung c\u1ea5p l\u1ef1c \u0111\u1ea9y nh\u1edd v\u00e0o vi\u1ec7c ph\u1ee5t kh\u00ed ra ph\u00eda sau v\u1edbi t\u1ed1c \u0111\u1ed9 cao. \u0110\u00e2y l\u00e0 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u01a1 b\u1ea3n c\u1ee7a c\u00e1c lo\u1ea1i m\u00e1y bay ph\u1ea3n l\u1ef1c m\u00e0 ch\u00fang ta nh\u00ecn th\u1ea5y ng\u00e0y nay. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c, ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1c ph\u1ea7n ch\u00ednh c\u1ee7a n\u00f3 v\u00e0 nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c.<\/p>\n<h2>C\u00e1c ph\u1ea7n ch\u00ednh c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c<\/h2>\n<ul>\n<li><strong>C\u1eeda n\u1ea1p kh\u00ed:<\/strong> \u0110\u00e2y l\u00e0 ph\u1ea7n \u0111\u1ea7u c\u1ee7a \u0111\u1ed9ng c\u01a1, n\u01a1i kh\u00ed b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c h\u00fat v\u00e0o \u0111\u1ed9ng c\u01a1.<\/li>\n<li><strong>M\u00e1y n\u00e9n:<\/strong> Kh\u00ed \u0111\u01b0\u1ee3c h\u00fat v\u00e0o s\u1ebd \u0111i qua m\u00e1y n\u00e9n, n\u01a1i \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 kh\u00ed t\u0103ng l\u00ean nh\u1edd s\u1ef1 n\u00e9n l\u1ea1i.<\/li>\n<li><strong>Bu\u1ed3ng \u0111\u1ed1t:<\/strong> Kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o bu\u1ed3ng \u0111\u1ed1t, n\u01a1i n\u00f3 k\u1ebft h\u1ee3p v\u1edbi nhi\u00ean li\u1ec7u v\u00e0 \u0111\u1ed1t ch\u00e1y, t\u1ea1o ra kh\u00ed n\u00f3ng v\u00e0 gi\u00e3n n\u1edf.<\/li>\n<li><strong>Tuabin:<\/strong> Kh\u00ed n\u00f3ng v\u00e0 m\u1edf r\u1ed9ng n\u00e0y \u0111i qua tuabin, n\u01a1i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a kh\u00ed \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh c\u00f4ng c\u01a1 h\u1ecdc \u0111\u1ec3 quay m\u00e1y n\u00e9n.<\/li>\n<li><strong>\u1ed0ng x\u1ea3:<\/strong> Cu\u1ed1i c\u00f9ng, kh\u00ed \u0111\u00e3 gi\u00e3n n\u1edf v\u00e0 m\u1ea5t nhi\u1ec7t \u0111\u01b0\u1ee3c phun ra ngo\u00e0i qua \u1ed1ng x\u1ea3, t\u1ea1o ra l\u1ef1c \u0111\u1ea9y m\u1ea1nh v\u1ec1 ph\u00eda sau theo \u0111\u1ecbnh lu\u1eadt III Newton.<\/li>\n<\/ul>\n<h2>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a \u0111\u1ecbnh lu\u1eadt III Newton: &#8220;M\u1ed7i h\u00e0nh \u0111\u1ed9ng \u0111\u1ec1u c\u00f3 m\u1ed9t ph\u1ea3n \u1ee9ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00e0 ng\u01b0\u1ee3c chi\u1ec1u.&#8221; Khi kh\u00ed n\u00f3ng b\u1ecb ph\u1ee5t ra ph\u00eda sau v\u1edbi t\u1ed1c \u0111\u1ed9 cao, n\u00f3 t\u1ea1o ra l\u1ef1c \u0111\u1ea9y l\u1edbn h\u01b0\u1edbng v\u1ec1 ph\u00eda tr\u01b0\u1edbc, gi\u00fap \u0111\u1ea9y m\u00e1y bay \u0111i.<\/p>\n<p>Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft qua c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li><strong>N\u1ea1p kh\u00ed:<\/strong> Kh\u00f4ng kh\u00ed b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c h\u00fat v\u00e0o qua c\u1eeda n\u1ea1p kh\u00ed.<\/li>\n<li><strong>N\u00e9n kh\u00ed:<\/strong> Kh\u00ed n\u00e0y \u0111\u01b0\u1ee3c n\u00e9n l\u1ea1i b\u1edfi m\u00e1y n\u00e9n, l\u00e0m t\u0103ng \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li><strong>\u0110\u1ed1t ch\u00e1y:<\/strong> Kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o bu\u1ed3ng \u0111\u1ed1t, n\u01a1i n\u00f3 k\u1ebft h\u1ee3p v\u1edbi nhi\u00ean li\u1ec7u v\u00e0 b\u1ed1c ch\u00e1y.<\/li>\n<li><strong>Kh\u00ed gi\u00e3n n\u1edf:<\/strong> Kh\u00ed n\u00f3ng v\u00e0 m\u1edf r\u1ed9ng \u0111i qua tuabin, n\u01a1i n\u0103ng l\u01b0\u1ee3ng c\u1ee7a kh\u00ed \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh c\u00f4ng c\u01a1 h\u1ecdc.<\/li>\n<li><strong>Phun kh\u00ed:<\/strong> Kh\u00ed \u0111\u00e3 gi\u00e3n n\u1edf ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c phun ra t\u1eeb \u1ed1ng x\u1ea3 v\u1edbi t\u1ed1c \u0111\u1ed9 cao, t\u1ea1o ra l\u1ef1c \u0111\u1ea9y v\u1ec1 ph\u00eda sau v\u00e0 \u0111\u1ea9y m\u00e1y bay v\u1ec1 ph\u00eda tr\u01b0\u1edbc.<\/li>\n<\/ol>\n<h2>Ph\u01b0\u01a1ng tr\u00ecnh l\u1ef1c \u0111\u1ea9y<\/h2>\n<p>L\u1ef1c \u0111\u1ea9y c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c \u0111\u01b0\u1ee3c t\u00ednh d\u1ef1a tr\u00ean ph\u01b0\u01a1ng tr\u00ecnh sau:<\/p>\n<p>\\[<br \/>\nF = \\dot{m} \\cdot (v_e &#8211; v_0) + (p_e &#8211; p_0) \\cdot A_e<br \/>\n\\]\n<p>trong \u0111\u00f3:<\/p>\n<ul>\n<li>\\(\\dot{m}\\): L\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u00ed (kg\/s)<\/li>\n<li>v<sub>e<\/sub>: T\u1ed1c \u0111\u1ed9 kh\u00ed ph\u00eda sau (m\/s)<\/li>\n<li>v<sub>0<\/sub>: T\u1ed1c \u0111\u1ed9 kh\u00ed ph\u00eda tr\u01b0\u1edbc (m\/s)<\/li>\n<li>p<sub>e<\/sub>: \u00c1p su\u1ea5t kh\u00ed ph\u00eda sau (Pa)<\/li>\n<li>p<sub>0<\/sub>: \u00c1p su\u1ea5t kh\u00ed ph\u00eda tr\u01b0\u1edbc (Pa)<\/li>\n<li>A<sub>e<\/sub>: Di\u1ec7n t\u00edch c\u1eeda x\u1ea3 (m<sup>2<\/sup>)<\/li>\n<\/ul>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c l\u00e0 m\u1ed9t nguy\u00ean l\u00fd k\u1ef9 thu\u1eadt quan tr\u1ecdng, gi\u00fap m\u00e1y bay \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 cao v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 nhi\u00ean li\u1ec7u. Nh\u1edd v\u00e0o c\u00e1c ph\u1ea7n ch\u00ednh nh\u01b0 m\u00e1y n\u00e9n, tuabin v\u00e0 bu\u1ed3ng \u0111\u1ed1t, \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 theo \u0111\u1ecbnh lu\u1eadt III Newton, bi\u1ebfn nhi\u00ean li\u1ec7u th\u00e0nh l\u1ef1c \u0111\u1ea9y m\u1ea1nh m\u1ebd. Hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c kh\u00f4ng ch\u1ec9 gi\u00fap ch\u00fang ta n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i nghi\u00ean c\u1ee9u v\u00e0 \u1ee9ng d\u1ee5ng trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 ph\u1ea3n l\u1ef1c: t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ng\u00e0nh h\u00e0ng kh\u00f4ng.<\/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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