{"id":677710,"date":"2024-09-26T05:43:26","date_gmt":"2024-09-26T04:43:26","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=677710"},"modified":"2024-09-26T05:43:26","modified_gmt":"2024-09-26T04:43:26","slug":"ao-khoac-thay-doi-pha-dieu-chinh-nhiet-do-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/ao-khoac-thay-doi-pha-dieu-chinh-nhiet-do-nhu-the-nao\/","title":{"rendered":"\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<p class=\"sidekick\">\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 b\u1eb1ng c\u00e1ch h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, gi\u00fap c\u01a1 th\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft thay \u0111\u1ed5i.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/ao_khoac_thay_doi_pha_dieu_chinh_nhiet_do_nhu_the_nao.png\" alt=\"\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, \u00e1o kho\u00e1c thay \u0111\u1ed5i pha (Phase Change Material, vi\u1ebft t\u1eaft l\u00e0 PCM) l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn gi\u00fap \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 ng\u01b0\u1eddi m\u1eb7c. \u00c1o kho\u00e1c n\u00e0y s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng thay \u0111\u1ed5i pha \u0111\u1ec3 h\u1ea5p th\u1ee5, l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t.<\/p>\n<h2>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u00e1o kho\u00e1c thay \u0111\u1ed5i pha<\/h2>\n<p>Khi v\u1eadt li\u1ec7u PCM chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang tr\u1ea1ng th\u00e1i l\u1ecfng, n\u00f3 h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t l\u1edbn t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh. Ng\u01b0\u1ee3c l\u1ea1i, khi v\u1eadt li\u1ec7u chuy\u1ec3n t\u1eeb l\u1ecfng v\u1ec1 r\u1eafn, n\u00f3 gi\u1ea3i ph\u00f3ng nhi\u1ec7t ra m\u00f4i tr\u01b0\u1eddng.<\/p>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh \u0111\u01a1n gi\u1ea3n bi\u1ec3u th\u1ecb s\u1ef1 trao \u0111\u1ed5i nhi\u1ec7t c\u00f3 th\u1ec3 vi\u1ebft nh\u01b0 sau:<\/p>\n<p>\\[ Q = m \\Delta H + m c \\Delta T \\]\n<ul>\n<li><strong>Q<\/strong>: L\u01b0\u1ee3ng nhi\u1ec7t trao \u0111\u1ed5i (Joules, J)<\/li>\n<li><strong>m<\/strong>: Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t thay \u0111\u1ed5i pha (kg)<\/li>\n<li><strong>\\Delta H<\/strong>: Nhi\u1ec7t \u1ea9n c\u1ee7a s\u1ef1 thay \u0111\u1ed5i pha (J\/kg)<\/li>\n<li><strong>c<\/strong>: Nhi\u1ec7t dung ri\u00eang c\u1ee7a ch\u1ea5t (J\/kg\\cdot K)<\/li>\n<li><strong>\\Delta T<\/strong>: S\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 (K)<\/li>\n<\/ul>\n<p>Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng l\u00ean, v\u1eadt li\u1ec7u PCM trong \u00e1o kho\u00e1c s\u1ebd h\u1ea5p th\u1ee5 nhi\u1ec7t v\u00e0 chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang tr\u1ea1ng th\u00e1i l\u1ecfng, gi\u00fap l\u00e0m m\u00e1t c\u01a1 th\u1ec3. Ng\u01b0\u1ee3c l\u1ea1i, khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, v\u1eadt li\u1ec7u PCM s\u1ebd tr\u1edf v\u1ec1 tr\u1ea1ng th\u00e1i r\u1eafn v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, gi\u00fap gi\u1eef \u1ea5m cho ng\u01b0\u1eddi m\u1eb7c.<\/p>\n<h2>\u01afu \u0111i\u1ec3m c\u1ee7a \u00e1o kho\u00e1c thay \u0111\u1ed5i pha<\/h2>\n<ol>\n<li><strong>\u0110i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 t\u1ef1 nhi\u00ean:<\/strong> V\u1eadt li\u1ec7u PCM gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 \u1ed5n \u0111\u1ecbnh b\u1eb1ng c\u00e1ch t\u1ef1 \u0111\u1ed9ng h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t.<\/li>\n<li><strong>Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng:<\/strong> Kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n ho\u1eb7c pin \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><strong>Th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng:<\/strong> V\u1eadt li\u1ec7u PCM th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 ho\u1eb7c kh\u00f4ng h\u1eefu c\u01a1 c\u00f3 t\u00ednh b\u1ec1n v\u1eefng cao.<\/li>\n<li><strong>Tho\u1ea3i m\u00e1i:<\/strong> Gi\u00fap ng\u01b0\u1eddi m\u1eb7c c\u1ea3m th\u1ea5y tho\u1ea3i m\u00e1i h\u01a1n trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft kh\u00e1c nhau.<\/li>\n<\/ol>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a \u00e1o kho\u00e1c thay \u0111\u1ed5i pha<\/h2>\n<ul>\n<li><strong>Trang ph\u1ee5c th\u1ec3 thao:<\/strong> Gi\u00fap v\u1eadn \u0111\u1ed9ng vi\u00ean duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 \u1ed5n \u0111\u1ecbnh trong su\u1ed1t qu\u00e1 tr\u00ecnh luy\u1ec7n t\u1eadp v\u00e0 thi \u0111\u1ea5u.<\/li>\n<li><strong>Trang ph\u1ee5c b\u1ea3o h\u1ed9 lao \u0111\u1ed9ng:<\/strong> \u0110\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 l\u1edbn.<\/li>\n<li><strong>Trang ph\u1ee5c h\u00e0ng ng\u00e0y:<\/strong> Nh\u1eefng s\u1ea3n ph\u1ea9m th\u1eddi trang \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 PCM gi\u00fap ng\u01b0\u1eddi d\u00f9ng tho\u1ea3i m\u00e1i h\u01a1n khi th\u1eddi ti\u1ebft thay \u0111\u1ed5i.<\/li>\n<\/ul>\n<p>C\u00f4ng ngh\u1ec7 \u00e1o kho\u00e1c thay \u0111\u1ed5i pha l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn l\u1edbn trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng v\u00e0 h\u1ee9a h\u1eb9n ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 b\u1eb1ng c\u00e1ch h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, gi\u00fap c\u01a1 th\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft thay \u0111\u1ed5i.<\/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>\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 nh\u01b0 th\u1ebf n\u00e0o<\/title>\n<meta name=\"description\" content=\"\u00c1o kho\u00e1c thay \u0111\u1ed5i pha \u0111i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 b\u1eb1ng c\u00e1ch h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t, gi\u00fap c\u01a1 th\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft thay \u0111\u1ed5i.\" \/>\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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