{"id":689711,"date":"2024-10-02T20:10:23","date_gmt":"2024-10-02T19:10:23","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=689711"},"modified":"2024-10-02T20:10:23","modified_gmt":"2024-10-02T19:10:23","slug":"hieu-suat-nhiet-cua-tam-tuong-vat-lieu-thay-doi-pha","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/hieu-suat-nhiet-cua-tam-tuong-vat-lieu-thay-doi-pha\/","title":{"rendered":"Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha"},"content":{"rendered":"<p class=\"sidekick\">Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha: Nghi\u00ean c\u1ee9u c\u00e1ch t\u01b0\u1eddng PCM c\u1ea3i thi\u1ec7n c\u00e1ch nhi\u1ec7t, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng trong t\u00f2a nh\u00e0.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/hieu_suat_nhiet_cua_tam_tuong_vat_lieu_thay_doi_pha.png\" alt=\"Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, vi\u1ec7c s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha (PCM &#8211; Phase Change Material) trong t\u1ea5m t\u01b0\u1eddng \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u00e0 \u00e1p d\u1ee5ng nh\u1eb1m c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a c\u00e1c c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng. V\u1eadt li\u1ec7u thay \u0111\u1ed5i pha n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t n\u0103ng khi chuy\u1ec3n tr\u1ea1ng th\u00e1i t\u1eeb r\u1eafn sang l\u1ecfng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, t\u1eeb \u0111\u00f3 gi\u00fap \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 trong c\u00e1c t\u00f2a nh\u00e0.<\/p>\n<h2>Kh\u00e1i ni\u1ec7m v\u1ec1 v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha<\/h2>\n<p>V\u1eadt li\u1ec7u thay \u0111\u1ed5i pha l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef ho\u1eb7c gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t khi x\u1ea3y ra qu\u00e1 tr\u00ecnh chuy\u1ec3n tr\u1ea1ng th\u00e1i. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng xung quanh t\u0103ng, PCM h\u1ea5p th\u1ee5 nhi\u1ec7t v\u00e0 chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang l\u1ecfng. Ng\u01b0\u1ee3c l\u1ea1i, khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, PCM gi\u1ea3i ph\u00f3ng nhi\u1ec7t v\u00e0 chuy\u1ec3n tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i r\u1eafn.<\/p>\n<h2>C\u1ea5u t\u1ea1o c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM<\/h2>\n<p><u1><\/p>\n<li>L\u1edbp v\u1ecf b\u1ecdc: Gi\u00fap b\u1ea3o v\u1ec7 v\u00e0 gi\u1eef cho PCM kh\u00f4ng b\u1ecb r\u00f2 r\u1ec9 ra ngo\u00e0i.<\/li>\n<li>PCM: \u0110\u01b0\u1ee3c ch\u1ecdn l\u1ef1a d\u1ef1a tr\u00ean d\u1ea3i nhi\u1ec7t \u0111\u1ed9 thay \u0111\u1ed5i pha ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu c\u1ee7a n\u01a1i s\u1eed d\u1ee5ng.<\/li>\n<li>L\u1edbp c\u00e1ch nhi\u1ec7t: Gi\u00fap gi\u1ea3m thi\u1ec3u s\u1ef1 truy\u1ec1n nhi\u1ec7t kh\u00f4ng mong mu\u1ed1n.<\/li>\n<p><\/u1><\/p>\n<h2>\u1ee8ng d\u1ee5ng c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM<\/h2>\n<p>V\u1edbi kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t hi\u1ec7u qu\u1ea3, t\u1ea5m t\u01b0\u1eddng PCM \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong:<\/p>\n<p><u1><\/p>\n<li>C\u00f4ng tr\u00ecnh nh\u00e0 \u1edf: Gi\u00fap \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 b\u00ean trong, gi\u1ea3m t\u1ea7n su\u1ea5t s\u1eed d\u1ee5ng m\u00e1y \u0111i\u1ec1u h\u00f2a.<\/li>\n<li>Nh\u00e0 kho, b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m: B\u1ea3o \u0111\u1ea3m nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li>C\u00e1c t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng: Gi\u1ea3m chi ph\u00ed \u0111i\u1ec1u h\u00f2a, n\u00e2ng cao hi\u1ec7u qu\u1ea3 l\u00e0m vi\u1ec7c.<\/li>\n<p><\/u1><\/p>\n<h2>Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM<\/h2>\n<p>Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 b\u1eb1ng vi\u1ec7c \u0111o l\u01b0\u1eddng kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u trong chu k\u1ef3 ng\u00e0y \u0111\u00eam. C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n hi\u1ec7u su\u1ea5t nhi\u1ec7t th\u01b0\u1eddng d\u1ef1a tr\u00ean:<\/p>\n<p>Hi\u1ec7u su\u1ea5t = (\\frac{N\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef \u0111\u01b0\u1ee3c}{N\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o}) * 100%<\/p>\n<p>Trong \u0111\u00f3, n\u0103ng l\u01b0\u1ee3ng l\u01b0u tr\u1eef \u0111\u01b0\u1ee3c bao g\u1ed3m n\u0103ng l\u01b0\u1ee3ng h\u1ea5p th\u1ee5 khi PCM chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang l\u1ecfng v\u00e0 gi\u1ea3i ph\u00f3ng khi ng\u01b0\u1ee3c l\u1ea1i, v\u00e0 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ea7u v\u00e0o l\u00e0 t\u1ed5ng n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c cung c\u1ea5p cho h\u1ec7 th\u1ed1ng trong kho\u1ea3ng th\u1eddi gian nghi\u00ean c\u1ee9u.<\/p>\n<h2>L\u1ee3i \u00edch c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM<\/h2>\n<p>T\u1ea5m t\u01b0\u1eddng PCM mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch \u0111\u00e1ng k\u1ec3:<\/p>\n<p><u1><\/p>\n<li>T\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng c\u1ee7a c\u00e1c t\u00f2a nh\u00e0.<\/li>\n<li>Gi\u1ea3m chi ph\u00ed \u0111i\u1ec7n n\u0103ng cho vi\u1ec7c s\u01b0\u1edfi \u1ea5m ho\u1eb7c l\u00e0m m\u00e1t.<\/li>\n<li>\u1ee8ng d\u1ee5ng \u0111\u01b0\u1ee3c trong nhi\u1ec1u lo\u1ea1i c\u00f4ng tr\u00ecnh kh\u00e1c nhau.<\/li>\n<p><\/u1><\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>V\u1edbi nh\u1eefng \u0111\u1eb7c t\u00ednh n\u1ed5i tr\u1ed9i trong vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9, v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha trong t\u1ea5m t\u01b0\u1eddng PCM mang \u0111\u1ebfn m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n v\u1eefng trong l\u0129nh v\u1ef1c x\u00e2y d\u1ef1ng. S\u1ef1 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a t\u1ea5m t\u01b0\u1eddng PCM kh\u00f4ng ch\u1ec9 gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a c\u00e1c c\u00f4ng tr\u00ecnh m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n v\u00e0o vi\u1ec7c ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7u su\u1ea5t nhi\u1ec7t c\u1ee7a t\u1ea5m t\u01b0\u1eddng v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha: Nghi\u00ean c\u1ee9u c\u00e1ch t\u01b0\u1eddng PCM c\u1ea3i thi\u1ec7n c\u00e1ch nhi\u1ec7t, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng trong t\u00f2a nh\u00e0.<\/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\/ 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