![\"V\u1eadt](\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/vat_lieu_thay_doi_pha_luu_tru_nhiet_hieu_qua_nang_luong.png\")
<\/p>\nV\u1eadt li\u1ec7u thay \u0111\u1ed5i pha cung c\u1ea5p gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef nhi\u1ec7t hi\u1ec7u qu\u1ea3, gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed.<\/p>\n
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Trong ng\u00e0nh k\u1ef9 thu\u1eadt nhi\u1ec7t, v\u1eadt li\u1ec7u thay \u0111\u1ed5i pha (PCM – Phase Change Material) l\u00e0 nh\u1eefng ch\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1edd kh\u1ea3 n\u0103ng 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. S\u1ef1 thay \u0111\u1ed5i pha c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u n\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u1eeb r\u1eafn sang l\u1ecfng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, cho ph\u00e9p ch\u00fang h\u1ea5p th\u1ee5 ho\u1eb7c gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nhi\u1ec7t n\u0103ng.<\/p>\n
PCM ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd h\u1ea5p th\u1ee5 ho\u1eb7c gi\u1ea3i ph\u00f3ng nhi\u1ec7t trong qu\u00e1 tr\u00ecnh chuy\u1ec3n pha. Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u01b0\u1ee3t qua nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n pha c\u1ee7a PCM, v\u1eadt li\u1ec7u s\u1ebd h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nhi\u1ec7t \u0111\u1ec3 chuy\u1ec3n t\u1eeb pha r\u1eafn sang pha l\u1ecfng (qu\u00e1 tr\u00ecnh n\u00f3ng ch\u1ea3y). Ng\u01b0\u1ee3c l\u1ea1i, khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n pha, v\u1eadt li\u1ec7u s\u1ebd gi\u1ea3i ph\u00f3ng nhi\u1ec7t \u0111\u1ec3 chuy\u1ec3n t\u1eeb pha l\u1ecfng sang pha r\u1eafn (qu\u00e1 tr\u00ecnh \u0111\u00f4ng \u0111\u1eb7c).<\/p>\n
PCM \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau nh\u1edd v\u00e0o kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef nhi\u1ec7t v\u00e0 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn:<\/p>\n
V\u00ed d\u1ee5, trong m\u1ed9t h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, PCM c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 nhi\u1ec7t t\u1eeb \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi trong su\u1ed1t ban ng\u00e0y v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t l\u01b0\u1ee3ng \u0111\u00f3 v\u00e0o ban \u0111\u00eam. \u0110i\u1ec1u n\u00e0y gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 gi\u1ea3m thi\u1ec3u s\u1ef1 c\u1ea7n thi\u1ebft c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng s\u01b0\u1edfi b\u1ed5 sung.<\/p>\n
Trong l\u0129nh v\u1ef1c x\u00e2y d\u1ef1ng, c\u00e1c t\u1ea5m panel ch\u1ee9a PCM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o t\u01b0\u1eddng v\u00e0 tr\u1ea7n nh\u00e0 \u0111\u1ec3 gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong su\u1ed1t c\u1ea3 ng\u00e0y, gi\u1ea3m thi\u1ec3u vi\u1ec7c s\u1eed d\u1ee5ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed v\u00e0 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, t\u1eeb \u0111\u00f3 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/p>\n
V\u1eadt li\u1ec7u thay \u0111\u1ed5i pha mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i trong vi\u1ec7c l\u01b0u tr\u1eef nhi\u1ec7t v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng. V\u1edbi kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 trong qu\u00e1 tr\u00ecnh chuy\u1ec3n pha, PCM \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t hi\u1ec7n \u0111\u1ea1i, t\u1eeb \u1ee9ng d\u1ee5ng trong x\u00e2y d\u1ef1ng \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o. Vi\u1ec7c s\u1eed d\u1ee5ng PCM kh\u00f4ng ch\u1ec9 gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n v\u00e0o vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng th\u00f4ng qua vi\u1ec7c gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i carbon.<\/p>\n","protected":false},"excerpt":{"rendered":"
V\u1eadt li\u1ec7u thay \u0111\u1ed5i pha cung c\u1ea5p gi\u1ea3i ph\u00e1p l\u01b0u tr\u1eef nhi\u1ec7t hi\u1ec7u qu\u1ea3, gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec7t v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed.<\/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":"\n