{"id":692772,"date":"2024-09-14T07:17:48","date_gmt":"2024-09-14T06:17:48","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=692772"},"modified":"2024-09-14T07:17:48","modified_gmt":"2024-09-14T06:17:48","slug":"luu-huynh-florua-thuoc-khu-trung-do-dan-nhiet-thap","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/luu-huynh-florua-thuoc-khu-trung-do-dan-nhiet-thap\/","title":{"rendered":"L\u01b0u Hu\u1ef3nh Florua | Thu\u1ed1c Kh\u1eed Tr\u00f9ng, \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Th\u1ea5p"},"content":{"rendered":"<p class=\"sidekick\">L\u01b0u Hu\u1ef3nh Florua: Thu\u1ed1c kh\u1eed tr\u00f9ng hi\u1ec7u qu\u1ea3, \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p, \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf nh\u1edd t\u00ednh ch\u1ea5t ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/luu_huynh_florua_thuoc_khu_trung_do_dan_nhiet_thap.png\" alt=\"L\u01b0u Hu\u1ef3nh Florua | Thu\u1ed1c Kh\u1eed Tr\u00f9ng, \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Th\u1ea5p\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>L\u01b0u Hu\u1ef3nh Florua | Thu\u1ed1c Kh\u1eed Tr\u00f9ng, \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Th\u1ea5p<\/h2>\n<p>L\u01b0u hu\u1ef3nh florua (SF<sub>6<\/sub>) l\u00e0 h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc c\u00f3 d\u1ea1ng kh\u00ed kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i v\u00e0 kh\u00f4ng ch\u00e1y. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd kh\u00e1m ph\u00e1 m\u1ed9t s\u1ed1 \u0111\u1eb7c t\u00ednh quan tr\u1ecdng c\u1ee7a l\u01b0u hu\u1ef3nh florua v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 nh\u01b0 thu\u1ed1c kh\u1eed tr\u00f9ng v\u00e0 v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p.<\/p>\n<h3>\u0110\u1eb7c T\u00ednh C\u1ee7a L\u01b0u Hu\u1ef3nh Florua<\/h3>\n<ul>\n<li>Ph\u00e2n t\u1eed kh\u1ed1i: 146.06 g\/mol<\/li>\n<li>\u0110i\u1ec3m s\u00f4i: -64\u00b0C<\/li>\n<li>\u0110i\u1ec3m n\u00f3ng ch\u1ea3y: -50.8\u00b0C<\/li>\n<li>\u0110\u1ed9 d\u1eabn nhi\u1ec7t: R\u1ea5t th\u1ea5p<\/li>\n<\/ul>\n<p>SF<sub>6<\/sub> c\u1ef1c k\u1ef3 b\u1ec1n v\u1eefng v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef nguy\u00ean t\u00ednh ch\u1ea5t c\u1ee7a m\u00ecnh trong m\u00f4i tr\u01b0\u1eddng kh\u00f4ng kh\u00ed. Nh\u1edd v\u00e0o t\u00ednh tr\u01a1 n\u00e0y, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p.<\/p>\n<h3>\u1ee8ng D\u1ee5ng C\u1ee7a L\u01b0u Hu\u1ef3nh Florua<\/h3>\n<p><strong>1. Thu\u1ed1c Kh\u1eed Tr\u00f9ng:<\/strong><\/p>\n<p>L\u01b0u hu\u1ef3nh florua s\u1edf h\u1eefu c\u00e1c t\u00ednh ch\u1ea5t tr\u01a1 v\u00e0 kh\u00f4ng ph\u1ea3n \u1ee9ng, khi\u1ebfn n\u00f3 c\u00f3 t\u00e1c d\u1ee5ng kh\u1eed tr\u00f9ng hi\u1ec7u qu\u1ea3. Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t kh\u00f4ng gian k\u00edn, SF<sub>6<\/sub> c\u00f3 kh\u1ea3 n\u0103ng ti\u00eau di\u1ec7t vi khu\u1ea9n v\u00e0 c\u00e1c vi sinh v\u1eadt g\u00e2y h\u1ea1i kh\u00e1c. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 h\u1eefu d\u1ee5ng trong vi\u1ec7c kh\u1eed tr\u00f9ng c\u00e1c thi\u1ebft b\u1ecb y t\u1ebf, khu v\u1ef1c nghi\u00ean c\u1ee9u v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng t\u01b0\u01a1ng t\u1ef1.<\/p>\n<p><strong>2. V\u1eadt Li\u1ec7u C\u00e1ch Nhi\u1ec7t:<\/strong><\/p>\n<p>\u0110\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p c\u1ee7a SF<sub>6<\/sub> l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec3m m\u1ea1nh n\u1ed5i b\u1eadt c\u1ee7a n\u00f3, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t v\u00e0 l\u00e0m n\u00f3ng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t nhi\u1ec7t.<\/p>\n<p><strong>C\u00e1c C\u00f4ng Th\u1ee9c Li\u00ean Quan:<\/strong><\/p>\n<p>\u0110\u1ec3 t\u00ednh to\u00e1n l\u01b0\u1ee3ng nhi\u1ec7t truy\u1ec1n qua m\u1ed9t v\u1eadt li\u1ec7u, ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Q = \\frac{k \\cdot A \\cdot (T_1 &#8211; T_2)}{d}<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ol>\n<li>Q: L\u01b0\u1ee3ng nhi\u1ec7t truy\u1ec1n (Watt, W)<\/li>\n<li>k: H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t (W\/m\u00b7K)<\/li>\n<li>A: Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t (m<sup>2<\/sup>)<\/li>\n<li>(T<sub>1<\/sub> &#8211; T<sub>2<\/sub>): \u0110\u1ed9 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 (K)<\/li>\n<li>d: \u0110\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u (m)<\/li>\n<\/ol>\n<p>V\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh d\u1eabn nhi\u1ec7t th\u1ea5p, SF<sub>6<\/sub> gi\u00fap gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng nhi\u1ec7t th\u1ea5t tho\u00e1t, n\u00e2ng cao hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<h3>K\u1ebft Lu\u1eadn<\/h3>\n<p>L\u01b0u hu\u1ef3nh florua (SF<sub>6<\/sub>) l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u1eefu \u00edch trong \u0111\u1eddi s\u1ed1ng v\u00e0 c\u00f4ng nghi\u1ec7p. T\u1eeb vi\u1ec7c l\u00e0 m\u1ed9t thu\u1ed1c kh\u1eed tr\u00f9ng hi\u1ec7u qu\u1ea3 \u0111\u1ebfn vi\u1ec7c l\u00e0m v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t tuy\u1ec7t v\u1eddi, SF<sub>6<\/sub> \u0111\u00e3 v\u00e0 \u0111ang ch\u1ee9ng minh gi\u00e1 tr\u1ecb c\u1ee7a m\u00ecnh trong nhi\u1ec1u l\u0129nh v\u1ef1c. Hi\u1ec3u r\u00f5 v\u00e0 s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch h\u1ee3p ch\u1ea5t n\u00e0y s\u1ebd mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho ch\u00fang ta.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u01b0u Hu\u1ef3nh Florua: Thu\u1ed1c kh\u1eed tr\u00f9ng hi\u1ec7u qu\u1ea3, \u0111\u1ed9 d\u1eabn nhi\u1ec7t th\u1ea5p, \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p v\u00e0 y t\u1ebf nh\u1edd t\u00ednh ch\u1ea5t ch\u1ed1ng \u0103n m\u00f2n.<\/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>L\u01b0u Hu\u1ef3nh Florua | Thu\u1ed1c Kh\u1eed Tr\u00f9ng, \u0110\u1ed9 D\u1eabn Nhi\u1ec7t Th\u1ea5p<\/title>\n<meta name=\"description\" content=\"L\u01b0u Hu\u1ef3nh Florua: 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