{"id":680996,"date":"2024-08-30T21:20:38","date_gmt":"2024-08-30T20:20:38","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=680996"},"modified":"2024-08-30T21:20:38","modified_gmt":"2024-08-30T20:20:38","slug":"chuyen-nhiet-trong-san-xuat-dien-tham-thau","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/chuyen-nhiet-trong-san-xuat-dien-tham-thau\/","title":{"rendered":"Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u"},"content":{"rendered":"<p class=\"sidekick\">Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u: Kh\u00e1m ph\u00e1 nguy\u00ean l\u00fd chuy\u1ec3n nhi\u1ec7t, \u1ee9ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1eeb hi\u1ec7n t\u01b0\u1ee3ng th\u1ea9m th\u1ea5u.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chuyen_nhiet_trong_san_xuat_dien_tham_thau.png\" alt=\"Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Chuy\u1ec3n Nhi\u1ec7t Trong S\u1ea3n Xu\u1ea5t \u0110i\u1ec7n Th\u1ea9m Th\u1ea5u<\/h2>\n<p>S\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u l\u00e0 qu\u00e1 tr\u00ecnh t\u1ea1o ra \u0111i\u1ec7n t\u1eeb s\u1ef1 ch\u00eanh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 mu\u1ed1i gi\u1eefa hai m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;\u0111i\u1ec7n th\u1ea9m th\u1ea5u&#8221; hay &#8220;salinity gradient power&#8221;. M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 khai th\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng n\u00e0y l\u00e0 s\u1eed d\u1ee5ng qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ion v\u00e0 m\u00e0ng th\u1ea9m th\u1ea5u.<\/p>\n<p>Chuy\u1ec3n nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong hi\u1ec7u su\u1ea5t v\u00e0 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u. Qu\u00e1 tr\u00ecnh n\u00e0y li\u00ean quan t\u1edbi vi\u1ec7c di chuy\u1ec3n nhi\u1ec7t l\u01b0\u1ee3ng t\u1eeb v\u00f9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ebfn v\u00f9ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, gi\u00fap t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 c\u1ea7n thi\u1ebft cho c\u00e1c qu\u00e1 tr\u00ecnh nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc.<\/p>\n<h2>Nguy\u00ean L\u00fd C\u01a1 B\u1ea3n<\/h2>\n<p>Trong \u0111i\u1ec7n th\u1ea9m th\u1ea5u, c\u00e1c m\u00e0ng b\u00e1n th\u1ea5m cho ph\u00e9p m\u1ed9t s\u1ed1 ion ho\u1eb7c ph\u00e2n t\u1eed nh\u1ea5t \u0111\u1ecbnh di chuy\u1ec3n qua nh\u01b0ng ng\u0103n ch\u1eb7n s\u1ef1 di chuy\u1ec3n c\u1ee7a c\u00e1c ion kh\u00e1c. Khi c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 gi\u1eefa hai b\u00ean m\u00e0ng, c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc s\u1ebd di chuy\u1ec3n qua m\u00e0ng \u0111\u1ec3 c\u00e2n b\u1eb1ng n\u1ed9ng \u0111\u1ed9, t\u1ea1o ra m\u1ed9t d\u00f2ng ion c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n.<\/p>\n<ul>\n<li><b>Chuy\u1ec3n nhi\u1ec7t v\u00e0 ph\u00e2n b\u1ed1 n\u1ed3ng \u0111\u1ed9:<\/b> Qu\u00e1 tr\u00ecnh n\u00e0y b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec7t \u0111\u1ed9, v\u00ec n\u00f3ng l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a ph\u00e2n t\u1eed v\u00e0 ion, khi\u1ebfn cho h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<li><b>\u1ed0ng d\u1eabn nhi\u1ec7t:<\/b> C\u1ea5u t\u1ea1o c\u1ee7a c\u00e1c \u1ed1ng d\u1eabn nhi\u1ec7t c\u0169ng c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<li><b>S\u1ef1 ch\u1ed1ng nhi\u1ec7t:<\/b> S\u1ef1 ch\u1ed1ng truy\u1ec1n nhi\u1ec7t c\u0169ng r\u1ea5t quan tr\u1ecdng, v\u00ec khi ch\u1ed1ng nhi\u1ec7t qu\u00e1 cao, hi\u1ec7u su\u1ea5t chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng s\u1ebd gi\u1ea3m \u0111i.<\/li>\n<\/ul>\n<h2>C\u00f4ng Th\u1ee9c Chuy\u1ec3n Nhi\u1ec7t<\/h2>\n<p>Trong nghi\u00ean c\u1ee9u v\u1ec1 chuy\u1ec3n nhi\u1ec7t, ch\u00fang ta th\u01b0\u1eddng s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 t\u00ednh to\u00e1n hi\u1ec7u su\u1ea5t v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t:<\/p>\n<p>C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n \u0111\u1ec3 t\u00ednh d\u00f2ng nhi\u1ec7t Q gi\u1eefa hai v\u00f9ng nhi\u1ec7t \u0111\u1ed9 kh\u00e1c nhau:<\/p>\n<p><i>Q = k * A * (T_high &#8211; T_low)<\/i><\/p>\n<ul>\n<li>Q: d\u00f2ng nhi\u1ec7t (W)<\/li>\n<li>k: h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t (W\/m*K)<\/li>\n<li>A: di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t truy\u1ec1n nhi\u1ec7t (m<sup>2<\/sup>)<\/li>\n<li>T_high: nhi\u1ec7t \u0111\u1ed9 cao (K)<\/li>\n<li>T_low: nhi\u1ec7t \u0111\u1ed9 th\u1ea5p (K)<\/li>\n<\/ul>\n<h2>\u1ee8ng D\u1ee5ng Th\u1ef1c T\u1ebf<\/h2>\n<p>Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, bao g\u1ed3m:<\/p>\n<ol>\n<li><b>Nh\u00e0 m\u00e1y \u0111i\u1ec7n:<\/b> C\u00e1c nh\u00e0 m\u00e1y s\u1eed d\u1ee5ng s\u1ef1 ch\u00eanh l\u1ec7ch n\u1ed3ng \u0111\u1ed9 mu\u1ed1i \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n t\u1eeb n\u01b0\u1edbc bi\u1ec3n v\u00e0 n\u01b0\u1edbc ng\u1ecdt.<\/li>\n<li><b>Thi\u1ebft b\u1ecb di \u0111\u1ed9ng:<\/b> C\u00e1c thi\u1ebft b\u1ecb nh\u1ecf v\u00e0 di \u0111\u1ed9ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng qu\u00e1 tr\u00ecnh \u0111i\u1ec7n th\u1ea9m th\u1ea5u \u0111\u1ec3 t\u1ef1 cung c\u1ea5p \u0111i\u1ec7n n\u0103ng.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc:<\/b> H\u1ec7 th\u1ed1ng n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong vi\u1ec7c x\u1eed l\u00fd n\u01b0\u1edbc t\u1ea1i c\u00e1c khu v\u1ef1c thi\u1ebfu ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<\/ol>\n<p>Qua b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta \u0111\u00e3 l\u00e0m r\u00f5 m\u1ed9t s\u1ed1 kh\u00eda c\u1ea1nh quan tr\u1ecdng c\u1ee7a chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u. \u0110\u00e2y l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c \u0111\u1ea7y tri\u1ec3n v\u1ecdng v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n, h\u1ee9a h\u1eb9n s\u1ebd \u0111\u00f3ng g\u00f3p t\u00edch c\u1ef1c v\u00e0o t\u01b0\u01a1ng lai ph\u00e1t tri\u1ec3n c\u1ee7a n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 b\u1ec1n v\u1eefng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u: Kh\u00e1m ph\u00e1 nguy\u00ean l\u00fd chuy\u1ec3n nhi\u1ec7t, \u1ee9ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1eeb hi\u1ec7n t\u01b0\u1ee3ng th\u1ea9m th\u1ea5u.<\/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>Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u<\/title>\n<meta name=\"description\" content=\"Chuy\u1ec3n nhi\u1ec7t trong s\u1ea3n xu\u1ea5t \u0111i\u1ec7n th\u1ea9m th\u1ea5u: Kh\u00e1m ph\u00e1 nguy\u00ean l\u00fd chuy\u1ec3n nhi\u1ec7t, \u1ee9ng d\u1ee5ng trong s\u1ea3n xu\u1ea5t n\u0103ng l\u01b0\u1ee3ng t\u1eeb hi\u1ec7n t\u01b0\u1ee3ng th\u1ea9m th\u1ea5u.\" \/>\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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