{"id":673526,"date":"2024-11-11T09:38:48","date_gmt":"2024-11-11T08:38:48","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=673526"},"modified":"2024-11-11T09:38:48","modified_gmt":"2024-11-11T08:38:48","slug":"cach-hoat-dong-cua-he-thong-luu-tru-nhiet-an","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/cach-hoat-dong-cua-he-thong-luu-tru-nhiet-an\/","title":{"rendered":"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n"},"content":{"rendered":"<p class=\"sidekick\">H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n ho\u1ea1t \u0111\u1ed9ng ra sao: Gi\u1ea3i th\u00edch nguy\u00ean l\u00fd, c\u1ea5u t\u1ea1o v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t nhi\u1ec7t.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/cach_hoat_dong_cua_he_thong_luu_tru_nhiet_an.png\" alt=\"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>C\u00e1ch Ho\u1ea1t \u0110\u1ed9ng c\u1ee7a H\u1ec7 Th\u1ed1ng L\u01b0u Tr\u1eef Nhi\u1ec7t \u1ea8n<\/h2>\n<p>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n (Latent Heat Storage Systems &#8211; LHS) l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn trong l\u0129nh v\u1ef1c nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt nhi\u1ec7t. H\u1ec7 th\u1ed1ng n\u00e0y s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u chuy\u1ec3n pha (Phase Change Materials &#8211; PCM) \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<h2>Kh\u00e1i Ni\u1ec7m v\u1ec1 Nhi\u1ec7t \u1ea8n<\/h2>\n<p>Nhi\u1ec7t \u1ea9n l\u00e0 n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 ho\u1eb7c gi\u1ea3i ph\u00f3ng khi m\u1ed9t v\u1eadt li\u1ec7u thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i t\u1eeb r\u1eafn sang l\u1ecfng ho\u1eb7c t\u1eeb l\u1ecfng sang kh\u00ed, m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u. V\u00ed d\u1ee5 v\u1ec1 nhi\u1ec7t \u1ea9n bao g\u1ed3m vi\u1ec7c l\u00e0m tan b\u0103ng (chuy\u1ec3n t\u1eeb r\u1eafn sang l\u1ecfng) ho\u1eb7c s\u1ef1 bay h\u01a1i c\u1ee7a n\u01b0\u1edbc (chuy\u1ec3n t\u1eeb l\u1ecfng sang kh\u00ed).<\/p>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<ul>\n<li><b>Chuy\u1ec3n Pha:<\/b> Khi PCM nh\u1eadn n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, ch\u00fang chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang l\u1ecfng (v\u00ed d\u1ee5: tan ch\u1ea3y). Qu\u00e1 tr\u00ecnh n\u00e0y h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nhi\u1ec7t n\u0103ng t\u1ea1i m\u1ed9t nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i.<\/li>\n<li><b>L\u01b0u Tr\u1eef Nhi\u1ec7t:<\/b> Nhi\u1ec7t n\u0103ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong qu\u00e1 tr\u00ecnh chuy\u1ec3n pha. Khi c\u1ea7n thi\u1ebft, PCM s\u1ebd chuy\u1ec3n ng\u01b0\u1ee3c l\u1ea1i t\u1eeb d\u1ea1ng l\u1ecfng sang r\u1eafn, gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u00e3 l\u01b0u tr\u1eef.<\/li>\n<li><b>Gi\u1ea3i Ph\u00f3ng Nhi\u1ec7t:<\/b> Qu\u00e1 tr\u00ecnh \u0111\u00f4ng \u0111\u1eb7c (chuy\u1ec3n t\u1eeb l\u1ecfng v\u1ec1 r\u1eafn) gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t, cung c\u1ea5p nhi\u1ec7t cho h\u1ec7 th\u1ed1ng ho\u1eb7c m\u00f4i tr\u01b0\u1eddng xung quanh.<\/li>\n<\/ul>\n<h2>C\u00e1c Th\u00e0nh Ph\u1ea7n Ch\u00ednh C\u1ee7a H\u1ec7 Th\u1ed1ng L\u01b0u Tr\u1eef Nhi\u1ec7t \u1ea8n<\/h2>\n<ol>\n<li><b>V\u1eadt Li\u1ec7u Chuy\u1ec3n Pha (PCM):<\/b> Ch\u1ecdn c\u00e1c PCM c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y v\u00e0 \u0111i\u1ec3m k\u1ebft tinh ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng, v\u00ed d\u1ee5 nh\u01b0 paraffin, mu\u1ed1i hydrat ho\u1eb7c axit b\u00e9o.<\/li>\n<li><b>B\u1ed9 Trao \u0110\u1ed5i Nhi\u1ec7t:<\/b> Thi\u1ebft k\u1ebf b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t sao cho t\u1ed1i \u01b0u ho\u00e1 qu\u00e1 tr\u00ecnh truy\u1ec1n nh\u1eadn nhi\u1ec7t, \u0111\u1ea3m b\u1ea3o PCM c\u00f3 th\u1ec3 nhanh ch\u00f3ng h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t.<\/li>\n<li><b>V\u1ecf B\u1ecdc B\u1ea3o Qu\u1ea3n:<\/b> \u0110\u1ea3m b\u1ea3o s\u1ef1 an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ec7 th\u1ed1ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u v\u00e0 c\u1ea5u tr\u00fac v\u1ecf b\u1ecdc th\u00edch h\u1ee3p, tr\u00e1nh r\u00f2 r\u1ec9 v\u00e0 b\u1ea3o v\u1ec7 PCM kh\u1ecfi t\u00e1c \u0111\u1ed9ng b\u00ean ngo\u00e0i.<\/li>\n<\/ol>\n<h2>\u1ee8ng D\u1ee5ng Th\u1ef1c Ti\u1ec5n<\/h2>\n<p>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n c\u00f3 r\u1ea5t nhi\u1ec1u \u1ee9ng d\u1ee5ng trong \u0111\u1eddi s\u1ed1ng v\u00e0 c\u00f4ng nghi\u1ec7p:<\/p>\n<ul>\n<li><b>\u0110i\u1ec1u H\u00f2a Kh\u00f4ng Kh\u00ed:<\/b> S\u1eed d\u1ee5ng PCM \u0111\u1ec3 l\u01b0u tr\u1eef nhi\u1ec7t d\u01b0 th\u1eeba trong ng\u00e0y v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t v\u00e0o \u0111\u00eam, gi\u00fap \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><b>N\u0103ng L\u01b0\u1ee3ng T\u00e1i T\u1ea1o:<\/b> K\u1ebft h\u1ee3p v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi ho\u1eb7c gi\u00f3 \u0111\u1ec3 l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t v\u00e0 s\u1eed d\u1ee5ng khi c\u1ea7n thi\u1ebft.<\/li>\n<li><b>H\u1ec7 Th\u1ed1ng L\u00e0m M\u00e1t v\u00e0 S\u01b0\u1edfi \u1ea4m:<\/b> \u00c1p d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m s\u00e0n nh\u00e0, l\u00e0m m\u00e1t m\u00e1y ph\u00e1t \u0111i\u1ec7n, v\u00e0 trong ng\u00e0nh v\u1eadn t\u1ea3i \u0111\u1ec3 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh cho h\u00e0ng h\u00f3a.<\/li>\n<\/ul>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n v\u1eefng \u0111\u1ec3 qu\u1ea3n l\u00fd v\u00e0 s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng nhi\u1ec7t. Vi\u1ec7c hi\u1ec3u v\u00e0 \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch kinh t\u1ebf v\u00e0 m\u00f4i tr\u01b0\u1eddng, \u0111\u1eb7c bi\u1ec7t trong b\u1ed1i c\u1ea3nh t\u0103ng c\u01b0\u1eddng s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng to\u00e0n c\u1ea7u.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef nhi\u1ec7t \u1ea9n ho\u1ea1t \u0111\u1ed9ng ra sao: Gi\u1ea3i th\u00edch nguy\u00ean l\u00fd, c\u1ea5u t\u1ea1o v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t 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 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