{"id":675663,"date":"2024-09-03T06:08:30","date_gmt":"2024-09-03T05:08:30","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=675663"},"modified":"2024-09-03T06:08:30","modified_gmt":"2024-09-03T05:08:30","slug":"cach-cac-mo-dun-nhiet-dien-lam-mat-va-suoi-am-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-cac-mo-dun-nhiet-dien-lam-mat-va-suoi-am-nhu-the-nao\/","title":{"rendered":"C\u00e1ch c\u00e1c m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n l\u00e0m m\u00e1t v\u00e0 s\u01b0\u1edfi \u1ea5m nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">C\u00e1ch c\u00e1c m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n l\u00e0m m\u00e1t v\u00e0 s\u01b0\u1edfi \u1ea5m: t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 l\u1ee3i \u00edch c\u1ee7a ch\u00fang trong c\u00e1c thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_cac_mo-dun_nhiet_dien_lam_mat_va_suoi_am_nhu_the_nao.png\" alt=\"C\u00e1ch c\u00e1c m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n l\u00e0m m\u00e1t v\u00e0 s\u01b0\u1edfi \u1ea5m nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch C\u00e1c M\u00f4-\u0111un Nhi\u1ec7t \u0110i\u1ec7n L\u00e0m M\u00e1t v\u00e0 S\u01b0\u1edfi \u1ea4m Nh\u01b0 Th\u1ebf N\u00e0o<\/h2>\n<p>M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng th\u00fa v\u1ecb c\u1ee7a v\u1eadt li\u1ec7u b\u00e1n d\u1eabn trong k\u1ef9 thu\u1eadt nhi\u1ec7t l\u00e0 m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n (TEC). N\u1ebfu b\u1ea1n t\u1eebng th\u1eafc m\u1eafc l\u00e0m th\u1ebf n\u00e0o ch\u00fang c\u00f3 th\u1ec3 v\u1eeba l\u00e0m m\u00e1t v\u1eeba s\u01b0\u1edfi \u1ea5m, th\u00ec b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang.<\/p>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>M\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7n t\u01b0\u1ee3ng Peltier. Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ed9t m\u1ea1ch \u0111i\u1ec7n g\u1ed3m hai lo\u1ea1i v\u1eadt li\u1ec7u b\u00e1n d\u1eabn kh\u00e1c nhau, hi\u1ec7n t\u01b0\u1ee3ng Peltier s\u1ebd t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa hai m\u1eb7t c\u1ee7a m\u00f4-\u0111un.<\/p>\n<ul>\n<li>M\u1eb7t n\u00f3ng: Ph\u1ea7n n\u00e0y t\u1ecfa nhi\u1ec7t ra m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li>M\u1eb7t l\u1ea1nh: Ph\u1ea7n n\u00e0y h\u1ea5p th\u1ee5 nhi\u1ec7t t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 khi \u00e1p d\u1ee5ng d\u00f2ng \u0111i\u1ec7n, m\u1ed9t m\u1eb7t c\u1ee7a m\u00f4-\u0111un s\u1ebd l\u1ea1nh \u0111i v\u00e0 m\u1eb7t kia s\u1ebd n\u00f3ng l\u00ean, gi\u00fap \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 theo nhu c\u1ea7u c\u1ee5 th\u1ec3.<\/p>\n<h2>C\u1ea5u Tr\u00fac M\u00f4-\u0111un Nhi\u1ec7t \u0110i\u1ec7n<\/h2>\n<p>M\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n th\u01b0\u1eddng c\u00f3 c\u1ea5u tr\u00fac ph\u1eb3ng ch\u1ee9a nhi\u1ec1u c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n \u0111\u1eb7t gi\u1eefa hai t\u1ea5m g\u1ed1m. C\u00e1c c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n n\u00e0y g\u1ed3m c\u00f3 hai lo\u1ea1i b\u00e1n d\u1eabn: lo\u1ea1i p (positive) v\u00e0 lo\u1ea1i n (negative). Khi d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua c\u1eb7p nhi\u1ec7t \u0111i\u1ec7n, \u0111i\u1ec7n t\u1eed di chuy\u1ec3n t\u1eeb lo\u1ea1i n sang lo\u1ea1i p, t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9.<\/p>\n<h2>C\u00f4ng Th\u1ee9c v\u00e0 Hi\u1ec7u \u1ee8ng Peltier<\/h2>\n<p>Hi\u1ec7u \u1ee9ng Peltier \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n qua c\u00f4ng th\u1ee9c:<\/p>\n<p>\n\\[ Q = \\pi I t \\]\n<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li><i>Q<\/i>: Nhi\u1ec7t l\u01b0\u1ee3ng (W)<\/li>\n<li><i>\u03c0<\/i>: H\u1ec7 s\u1ed1 Peltier (V)<\/li>\n<li><i>I<\/i>: D\u00f2ng \u0111i\u1ec7n (A)<\/li>\n<li><i>t<\/i>: Th\u1eddi gian (s)<\/li>\n<\/ul>\n<p>Khi \u0111i\u1ec1u khi\u1ec3n d\u00f2ng \u0111i\u1ec7n <i>I<\/i>, ta c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t l\u01b0\u1ee3ng <i>Q<\/i> t\u1ea1o ra, t\u1eeb \u0111\u00f3 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh l\u00e0m m\u00e1t ho\u1eb7c s\u01b0\u1edfi \u1ea5m.<\/p>\n<h2>\u1ee8ng D\u1ee5ng Th\u1ef1c Ti\u1ec5n<\/h2>\n<p>M\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y v\u00e0 c\u00f4ng nghi\u1ec7p:<\/p>\n<ol>\n<li><b>T\u1ee7 l\u1ea1nh nh\u1ecf di \u0111\u1ed9ng:<\/b> S\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng trong xe h\u01a1i ho\u1eb7c khi \u0111i d\u00e3 ngo\u1ea1i.<\/li>\n<li><b>B\u1ed9 l\u00e0m m\u00e1t CPU:<\/b> Trong m\u00e1y t\u00ednh, n\u00f3 gi\u00fap l\u00e0m m\u00e1t b\u1ed9 vi x\u1eed l\u00fd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><b>\u1ee8ng d\u1ee5ng y t\u1ebf:<\/b> D\u00f9ng trong c\u00e1c thi\u1ebft b\u1ecb ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 cho m\u1eabu b\u1ec7nh ph\u1ea9m.<\/li>\n<\/ol>\n<p>B\u1eb1ng c\u00e1ch khai th\u00e1c nguy\u00ean l\u00fd Peltier, m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n gi\u00fap vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 tr\u1edf n\u00ean d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. Nh\u1edd nh\u1eefng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i, TEC th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u1ea7y h\u1ee9a h\u1eb9n trong m\u1ecdi l\u0129nh v\u1ef1c c\u1ee7a cu\u1ed9c s\u1ed1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch c\u00e1c m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n l\u00e0m m\u00e1t v\u00e0 s\u01b0\u1edfi \u1ea5m: t\u00ecm hi\u1ec3u nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 l\u1ee3i \u00edch c\u1ee7a ch\u00fang trong c\u00e1c thi\u1ebft b\u1ecb ti\u00eau d\u00f9ng.<\/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>C\u00e1ch c\u00e1c m\u00f4-\u0111un nhi\u1ec7t \u0111i\u1ec7n 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