{"id":675603,"date":"2024-09-22T21:58:07","date_gmt":"2024-09-22T20:58:07","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=675603"},"modified":"2024-09-22T21:58:07","modified_gmt":"2024-09-22T20:58:07","slug":"cach-binh-giu-nhiet-giu-am-ca-phe-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-binh-giu-nhiet-giu-am-ca-phe-nhu-the-nao\/","title":{"rendered":"C\u00e1ch b\u00ecnh gi\u1eef nhi\u1ec7t gi\u1eef \u1ea5m c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">C\u00e1ch b\u00ecnh gi\u1eef nhi\u1ec7t gi\u1eef \u1ea5m c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o: T\u00ecm hi\u1ec3u nguy\u00ean l\u00fd v\u00e0 v\u1eadt li\u1ec7u c\u1ea5u t\u1ea1o gi\u00fap b\u00ecnh gi\u1eef nhi\u1ec7t duy tr\u00ec \u0111\u1ed9 n\u00f3ng c\u1ee7a c\u00e0 ph\u00ea l\u00e2u h\u01a1n.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_binh_giu_nhiet_giu_am_ca_phe_nhu_the_nao.png\" alt=\"C\u00e1ch b\u00ecnh gi\u1eef nhi\u1ec7t gi\u1eef \u1ea5m c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch B\u00ecnh Gi\u1eef Nhi\u1ec7t Gi\u1eef \u1ea4m C\u00e0 Ph\u00ea Nh\u01b0 Th\u1ebf N\u00e0o<\/h2>\n<p>Trong cu\u1ed9c s\u1ed1ng h\u1eb1ng ng\u00e0y, b\u00ecnh gi\u1eef nhi\u1ec7t l\u00e0 m\u1ed9t v\u1eadt d\u1ee5ng quen thu\u1ed9c gi\u00fap ch\u00fang ta duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 c\u1ee7a th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng. M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a b\u00ecnh gi\u1eef nhi\u1ec7t l\u00e0 \u0111\u1ec3 gi\u1eef \u1ea5m c\u00e0 ph\u00ea. V\u1eady, b\u00ecnh gi\u1eef nhi\u1ec7t gi\u1eef \u1ea5m c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o? H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u qua nh\u1eefng c\u01a1 ch\u1ebf c\u01a1 b\u1ea3n d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<h2>C\u1ea5u T\u1ea1o C\u1ee7a B\u00ecnh Gi\u1eef Nhi\u1ec7t<\/h2>\n<p>B\u00ecnh gi\u1eef nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi hai l\u1edbp v\u1ecf: l\u1edbp v\u1ecf b\u00ean ngo\u00e0i v\u00e0 l\u1edbp v\u1ecf b\u00ean trong, v\u1edbi m\u1ed9t kho\u1ea3ng kh\u00f4ng gi\u1eefa hai l\u1edbp n\u00e0y. Kho\u1ea3ng kh\u00f4ng n\u00e0y th\u01b0\u1eddng l\u00e0 ch\u00e2n kh\u00f4ng ho\u1eb7c ch\u1ee9a m\u1ed9t ch\u1ea5t c\u00e1ch nhi\u1ec7t \u0111\u1eb7c bi\u1ec7t.<\/p>\n<ul>\n<li><b>L\u1edbp V\u1ecf B\u00ean Ngo\u00e0i:<\/b> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c nh\u1ef1a c\u1ee9ng, c\u00f3 nhi\u1ec7m v\u1ee5 b\u1ea3o v\u1ec7 l\u1edbp c\u00e1ch nhi\u1ec7t v\u00e0 gi\u1eef cho nhi\u1ec7t \u0111\u1ed9 b\u00ean ngo\u00e0i kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1ee9c u\u1ed1ng b\u00ean trong.<\/li>\n<li><b>L\u1edbp V\u1ecf B\u00ean Trong:<\/b> Th\u01b0\u1eddng l\u00e0m t\u1eeb th\u00e9p kh\u00f4ng g\u1ec9, gi\u00fap ph\u1ea3n x\u1ea1 nhi\u1ec7t tr\u1edf l\u1ea1i v\u00e0o dung d\u1ecbch b\u00ean trong b\u00ecnh.<\/li>\n<li><b>Kho\u1ea3ng Kh\u00f4ng C\u00e1ch Nhi\u1ec7t:<\/b> Kho\u1ea3ng kh\u00f4ng gi\u1eefa hai l\u1edbp v\u1ecf, th\u01b0\u1eddng l\u00e0 ch\u00e2n kh\u00f4ng ho\u1eb7c ch\u1ee9a b\u1ecdt c\u00e1ch nhi\u1ec7t \u0111\u1ec3 ng\u0103n nhi\u1ec7t truy\u1ec1n ra ngo\u00e0i.<\/li>\n<\/ul>\n<h2>C\u00e1c C\u01a1 Ch\u1ebf Gi\u1eef Nhi\u1ec7t<\/h2>\n<p>C\u00f3 ba c\u01a1 ch\u1ebf ch\u00ednh gi\u00fap b\u00ecnh gi\u1eef nhi\u1ec7t duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 c\u1ee7a c\u00e0 ph\u00ea: d\u1eabn nhi\u1ec7t, \u0111\u1ed1i l\u01b0u v\u00e0 b\u1ee9c x\u1ea1.<\/p>\n<ol>\n<li><b>D\u1eabn Nhi\u1ec7t:<\/b> Kho\u1ea3ng kh\u00f4ng c\u00e1ch nhi\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u00e2n kh\u00f4ng, gi\u00fap ng\u0103n c\u1ea3n d\u1eabn nhi\u1ec7t, v\u00ec kh\u00f4ng c\u00f3 kh\u00f4ng kh\u00ed \u0111\u1ec3 d\u1eabn nhi\u1ec7t t\u1eeb b\u00ean trong ra b\u00ean ngo\u00e0i.<\/li>\n<li><b>\u0110\u1ed1i L\u01b0u:<\/b> Ch\u00e2n kh\u00f4ng c\u0169ng ng\u0103n c\u1ea3n qu\u00e1 tr\u00ecnh \u0111\u1ed1i l\u01b0u, do kh\u00f4ng c\u00f3 kh\u00f4ng kh\u00ed \u0111\u1ec3 t\u1ea1o th\u00e0nh d\u00f2ng ch\u1ea3y nhi\u1ec7t, nhi\u1ec7t kh\u00f4ng th\u1ec3 truy\u1ec1n \u0111i m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 t\u1eeb c\u00e0 ph\u00ea ra ngo\u00e0i l\u1edbp v\u1ecf.<\/li>\n<li><b>B\u1ee9c X\u1ea1:<\/b> L\u1edbp v\u1ecf b\u00ean trong ph\u1ea3n x\u1ea1 l\u1ea1i nhi\u1ec7t, gi\u00fap ng\u0103n ch\u1eb7n m\u1ea5t nhi\u1ec7t qua b\u1ee9c x\u1ea1. Nhi\u1ec7t ph\u1ea3n x\u1ea1 l\u1ea1i v\u00e0o dung d\u1ecbch c\u00e0 ph\u00ea, gi\u1eef nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/li>\n<\/ol>\n<h2>C\u00f4ng Th\u1ee9c C\u01a1 B\u1ea3n<\/h2>\n<p>C\u00f4ng th\u1ee9c truy\u1ec1n t\u1ea3i nhi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh Fourier:<\/p>\n<p>\n  <u>q<\/u> = -k * A * (<sup>&Delta;T<\/sup>\/<sub>&Delta;x<\/sub>)\n<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li><b>q:<\/b> Nhi\u1ec7t truy\u1ec1n qua \u0111\u01a1n v\u1ecb th\u1eddi gian<\/li>\n<li><b>k:<\/b> H\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t (ch\u1ea5t li\u1ec7u)<\/li>\n<li><b>A:<\/b> Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t d\u1eabn nhi\u1ec7t<\/li>\n<li><b>&Delta;T:<\/b> Ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa hai b\u00ean<\/li>\n<li><b>&Delta;x:<\/b> \u0110\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Nh\u1edd v\u00e0o c\u00e1c c\u01a1 ch\u1ebf c\u00e1ch nhi\u1ec7t ti\u00ean ti\u1ebfn v\u00e0 s\u1ef1 thi\u1ebft k\u1ebf th\u00f4ng minh, b\u00ecnh gi\u1eef nhi\u1ec7t c\u00f3 th\u1ec3 gi\u1eef cho c\u00e0 ph\u00ea c\u1ee7a b\u1ea1n lu\u00f4n \u1ea5m ngon. V\u1edbi nh\u1eefng ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n n\u00e0y, hy v\u1ecdng b\u1ea1n \u0111\u00e3 c\u00f3 c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng h\u01a1n v\u1ec1 c\u00e1ch m\u00e0 b\u00ecnh gi\u1eef nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o qu\u1ea3n nhi\u1ec7t \u0111\u1ed9 cho th\u1ef1c ph\u1ea9m v\u00e0 \u0111\u1ed3 u\u1ed1ng h\u00e0ng ng\u00e0y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e1ch b\u00ecnh gi\u1eef nhi\u1ec7t gi\u1eef \u1ea5m c\u00e0 ph\u00ea nh\u01b0 th\u1ebf n\u00e0o: T\u00ecm hi\u1ec3u nguy\u00ean l\u00fd v\u00e0 v\u1eadt li\u1ec7u c\u1ea5u t\u1ea1o gi\u00fap b\u00ecnh gi\u1eef nhi\u1ec7t duy tr\u00ec \u0111\u1ed9 n\u00f3ng c\u1ee7a c\u00e0 ph\u00ea l\u00e2u h\u01a1n.<\/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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