{"id":693237,"date":"2024-11-30T20:16:11","date_gmt":"2024-11-30T19:16:11","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=693237"},"modified":"2024-11-30T20:16:11","modified_gmt":"2024-11-30T19:16:11","slug":"soi-thuy-tinh-cach-nhiet-chong-an-mon","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/soi-thuy-tinh-cach-nhiet-chong-an-mon\/","title":{"rendered":"S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n"},"content":{"rendered":"<p class=\"sidekick\">S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n &#8211; T\u00ecm hi\u1ec3u v\u1ec1 s\u1ee3i th\u1ee7y tinh, ch\u1ea5t li\u1ec7u n\u1ed5i b\u1eadt trong c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n, \u1ee9ng d\u1ee5ng trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/soi_thuy_tinh_cach_nhiet_chong_an_mon.png\" alt=\"S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n<\/h2>\n<p>S\u1ee3i th\u1ee7y tinh l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh k\u1ef9 thu\u1eadt nhi\u1ec7t v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nh\u1edd nh\u1eefng \u0111\u1eb7c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a n\u00f3 nh\u01b0 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 s\u1ee3i th\u1ee7y tinh, c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong th\u1ef1c t\u1ebf.<\/p>\n<h2>\u0110\u1eb7c T\u00ednh C\u1ee7a S\u1ee3i Th\u1ee7y Tinh<\/h2>\n<ul>\n<li><b>C\u00e1ch nhi\u1ec7t:<\/b> S\u1ee3i th\u1ee7y tinh c\u00f3 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t t\u1ed1t do n\u00f3 d\u1eabn nhi\u1ec7t k\u00e9m, gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau.<\/li>\n<li><b>Ch\u1ed1ng \u0103n m\u00f2n:<\/b> S\u1ee3i th\u1ee7y tinh kh\u00f4ng g\u1ec9, kh\u00f4ng b\u1ecb \u0103n m\u00f2n b\u1edfi c\u00e1c h\u00f3a ch\u1ea5t ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n<li><b>Tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9:<\/b> S\u1ee3i th\u1ee7y tinh c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, d\u1ec5 d\u00e0ng v\u1eadn chuy\u1ec3n v\u00e0 l\u1eafp \u0111\u1eb7t.<\/li>\n<li><b>T\u00ednh c\u01a1 h\u1ecdc:<\/b> M\u1eb7c d\u00f9 nh\u1eb9, s\u1ee3i th\u1ee7y tinh c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao, gi\u00fap n\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u00e1c \u0111\u1ed9ng m\u1ea1nh m\u00e0 kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng.<\/li>\n<\/ul>\n<h2>\u1ee8ng D\u1ee5ng C\u1ee7a S\u1ee3i Th\u1ee7y Tinh<\/h2>\n<p>S\u1ee3i th\u1ee7y tinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n nh\u01b0 sau:<\/p>\n<ol>\n<li><b>H\u1ec7 th\u1ed1ng c\u00e1ch nhi\u1ec7t:<\/b> S\u1ee3i th\u1ee7y tinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t trong nh\u00e0 \u1edf, c\u00e1c to\u00e0 nh\u00e0 th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p. S\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn t\u1eeb s\u1ee3i th\u1ee7y tinh nh\u01b0 l\u00e0 l\u1edbp c\u00e1ch nhi\u1ec7t tr\u00ean t\u01b0\u1eddng, tr\u1ea7n nh\u00e0 v\u00e0 \u1ed1ng d\u1eabn nhi\u1ec7t.<\/li>\n<li><b>\u0110\u01b0\u1eddng \u1ed1ng v\u00e0 b\u1ed3n ch\u1ee9a:<\/b> S\u1ee3i th\u1ee7y tinh c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 b\u1ed3n ch\u1ee9a h\u00f3a ch\u1ea5t, n\u01b0\u1edbc bi\u1ec3n v\u00ec n\u00f3 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n n\u00e0y.<\/li>\n<li><b>Xe c\u1ed9 v\u00e0 t\u00e0u th\u1ee7y:<\/b> Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4 v\u00e0 \u0111\u00f3ng t\u00e0u, s\u1ee3i th\u1ee7y tinh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf t\u1ea1o th\u00e2n xe, t\u00e0u v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c, nh\u1edd \u0111\u1eb7c t\u00ednh nh\u1eb9 v\u00e0 b\u1ec1n.<\/li>\n<li><b>V\u1eadt li\u1ec7u composite:<\/b> S\u1ee3i th\u1ee7y tinh th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i nh\u1ef1a \u0111\u1ec3 t\u1ea1o ra v\u1eadt li\u1ec7u composite v\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i nh\u01b0 \u0111\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t, v\u00e0 ch\u1ed1ng \u0103n m\u00f2n.<\/li>\n<\/ol>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>S\u1ee3i th\u1ee7y tinh c\u00e1ch nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd ng\u0103n ch\u1eb7n s\u1ef1 truy\u1ec1n nhi\u1ec7t qua v\u1eadt li\u1ec7u. Khi nhi\u1ec7t truy\u1ec1n qua s\u1ee3i th\u1ee7y tinh, c\u00e1c ph\u00e2n t\u1eed b\u00ean trong v\u1eadt li\u1ec7u n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef l\u1ea1i nhi\u1ec7t v\u00e0 ch\u1ec9 truy\u1ec1n nhi\u1ec7t r\u1ea5t ch\u1eadm ra ngo\u00e0i, \u0111i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 m\u1ea5t m\u00e1t nhi\u1ec7t.<\/p>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n m\u00f4 t\u1ea3 s\u1ef1 truy\u1ec1n nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau:<\/p>\n<p>q = -k * (dT\/dx)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li>q: l\u01b0u l\u01b0\u1ee3ng nhi\u1ec7t<\/li>\n<li>k: h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u<\/li>\n<li>dT\/dx: gradient nhi\u1ec7t \u0111\u1ed9<\/li>\n<\/ul>\n<p>V\u1edbi h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t \\( k \\) nh\u1ecf, s\u1ee3i th\u1ee7y tinh h\u1ea1n ch\u1ebf s\u1ef1 d\u1eabn truy\u1ec1n nhi\u1ec7t, gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 b\u00ean trong \u1ed5n \u0111\u1ecbnh.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>S\u1ee3i th\u1ee7y tinh l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p tuy\u1ec7t v\u1eddi cho c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n. V\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh n\u1ed5i tr\u1ed9i nh\u01b0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u00e0 b\u1ec1n b\u1ec9, s\u1ee3i th\u1ee7y tinh \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt v\u00e0 c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i. Hy v\u1ecdng r\u1eb1ng th\u00f4ng qua b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n \u0111\u00e3 c\u00f3 c\u00e1i nh\u00ecn r\u00f5 h\u01a1n v\u1ec1 s\u1ee3i th\u1ee7y tinh v\u00e0 nh\u1eefng \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a n\u00f3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n &#8211; T\u00ecm hi\u1ec3u v\u1ec1 s\u1ee3i th\u1ee7y tinh, ch\u1ea5t li\u1ec7u n\u1ed5i b\u1eadt trong c\u00e1ch nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n, \u1ee9ng d\u1ee5ng trong k\u1ef9 thu\u1eadt nhi\u1ec7t.<\/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>S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n<\/title>\n<meta name=\"description\" content=\"S\u1ee3i Th\u1ee7y Tinh | C\u00e1ch Nhi\u1ec7t, Ch\u1ed1ng \u0102n M\u00f2n - 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