{"id":701621,"date":"2024-07-27T14:40:21","date_gmt":"2024-07-27T13:40:21","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=701621"},"modified":"2024-07-27T14:40:21","modified_gmt":"2024-07-27T13:40:21","slug":"ao-lam-mat-chuyen-doi-pha-vat-lieu-giai-nhiet-nong","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/ao-lam-mat-chuyen-doi-pha-vat-lieu-giai-nhiet-nong\/","title":{"rendered":"\u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha | V\u1eadt li\u1ec7u gi\u1ea3i nhi\u1ec7t n\u00f3ng"},"content":{"rendered":"

\u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha | V\u1eadt li\u1ec7u gi\u1ea3i nhi\u1ec7t n\u00f3ng: C\u00e1ch \u00e1o l\u00e0m m\u00e1t s\u1eed d\u1ee5ng thay \u0111\u1ed5i pha \u0111\u1ec3 \u0111i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 hi\u1ec7u qu\u1ea3 khi tr\u1eddi n\u00f3ng.<\/p>\n

\"\u00c1o<\/p>\n

\u00c1o L\u00e0m M\u00e1t Chuy\u1ec3n \u0110\u1ed5i Pha | V\u1eadt Li\u1ec7u Gi\u1ea3i Nhi\u1ec7t N\u00f3ng<\/h2>\n

Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t (thermal engineering), nguy\u00ean l\u00fd chuy\u1ec3n \u0111\u1ed5i pha \u0111ang \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 t\u1ea1o ra c\u00e1c s\u1ea3n ph\u1ea9m gi\u1ea3i nhi\u1ec7t hi\u1ec7u qu\u1ea3, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u00e1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha. C\u00e1c v\u1eadt li\u1ec7u s\u1eed d\u1ee5ng trong nh\u1eefng lo\u1ea1i \u00e1o n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5, l\u01b0u tr\u1eef v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t th\u00f4ng qua qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i pha t\u1eeb r\u1eafn sang l\u1ecfng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n

Nguy\u00ean L\u00fd Chuy\u1ec3n \u0110\u1ed5i Pha<\/h2>\n

Khi m\u1ed9t ch\u1ea5t chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang tr\u1ea1ng th\u00e1i l\u1ecfng ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i, n\u00f3 s\u1ebd h\u1ea5p th\u1ee5 ho\u1eb7c gi\u1ea3i ph\u00f3ng m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t nh\u1ea5t \u0111\u1ecbnh m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ch\u00ednh n\u00f3. L\u01b0\u1ee3ng nhi\u1ec7t n\u00e0y g\u1ecdi l\u00e0 nhi\u1ec7t \u1ea9n chuy\u1ec3n pha (latent heat of phase change). V\u00ed d\u1ee5, khi \u0111\u00e1 tan th\u00e0nh n\u01b0\u1edbc, n\u00f3 h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng nhi\u1ec7t \u1ea9n m\u00e0 kh\u00f4ng l\u00e0m t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u01b0\u1edbc.<\/p>\n

<\/p>\n

  • Ch\u1ea5t chuy\u1ec3n pha th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u00e1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha l\u00e0 paraffin, mu\u1ed1i hydrat ho\u00e1, ho\u1eb7c c\u00e1c lo\u1ea1i ch\u1ea5t li\u1ec7u kh\u00f4ng \u0111\u1ed9c h\u1ea1i v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n pha \u1edf nhi\u1ec7t \u0111\u1ed9 g\u1ea7n v\u1edbi nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 ng\u01b0\u1eddi.<\/li>\n
  • Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng, c\u00e1c ch\u1ea5t chuy\u1ec3n pha n\u00e0y s\u1ebd h\u1ea5p th\u1ee5 nhi\u1ec7t v\u00e0 chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i r\u1eafn sang l\u1ecfng, gi\u00fap l\u00e0m m\u00e1t c\u01a1 th\u1ec3 ng\u01b0\u1eddi m\u1eb7c.<\/li>\n
  • Khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng gi\u1ea3m, ch\u1ea5t li\u1ec7u s\u1ebd chuy\u1ec3n l\u1ea1i th\u00e0nh tr\u1ea1ng th\u00e1i r\u1eafn v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t \u0111\u00e3 h\u1ea5p th\u1ee5, t\u1ea1o c\u1ea3m gi\u00e1c \u1ea5m \u00e1p cho ng\u01b0\u1eddi m\u1eb7c.<\/li>\n

    <\/u1><\/p>\n

    \u01afu \u0110i\u1ec3m C\u1ee7a \u00c1o L\u00e0m M\u00e1t Chuy\u1ec3n \u0110\u1ed5i Pha<\/h2>\n

    <\/p>\n

  • Hi\u1ec7u Qu\u1ea3 Gi\u1ea3i Nhi\u1ec7t:<\/b> Kh\u1ea3 n\u0103ng duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nh\u1edd v\u00e0o qu\u00e1 tr\u00ecnh h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t.<\/li>\n
  • Ti\u1ebft Ki\u1ec7m N\u0103ng L\u01b0\u1ee3ng:<\/b> Kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n hay c\u01a1 ch\u1ebf l\u00e0m m\u00e1t ph\u1ee9c t\u1ea1p.<\/li>\n
  • An To\u00e0n:<\/b> C\u00e1c ch\u1ea5t li\u1ec7u chuy\u1ec3n pha th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ef1a k\u1ef9 c\u00e0ng \u0111\u1ec3 kh\u00f4ng g\u00e2y h\u1ea1i cho s\u1ee9c kh\u1ecfe ng\u01b0\u1eddi d\u00f9ng.<\/li>\n
  • Ti\u1ec7n L\u1ee3i:<\/b> D\u1ec5 d\u00e0ng s\u1eed d\u1ee5ng v\u00e0 b\u1ea3o qu\u1ea3n, kh\u00f4ng y\u00eau c\u1ea7u b\u1ea3o d\u01b0\u1ee1ng ph\u1ee9c t\u1ea1p.<\/li>\n

    <\/u1><\/p>\n

    \u1ee8ng D\u1ee5ng Th\u1ef1c T\u1ebf<\/h2>\n

    C\u00e1c lo\u1ea1i \u00e1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c:<\/p>\n

    <\/p>\n

  • C\u00f4ng nh\u00e2n l\u00e0m vi\u1ec7c trong m\u00f4i tr\u01b0\u1eddng n\u00f3ng:<\/b> Nh\u01b0 nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t, c\u00f4ng tr\u01b0\u1eddng x\u00e2y d\u1ef1ng, ho\u1eb7c khu v\u1ef1c khai th\u00e1c m\u1ecf.<\/li>\n
  • X\u00e3 h\u1ed9i n\u00f3i chung:<\/b> B\u1ea5t k\u1ef3 ai c\u1ea7n gi\u1ea3i nhi\u1ec7t trong m\u00f9a h\u00e8 n\u00f3ng b\u1ee9c ho\u1eb7c khu v\u1ef1c c\u00f3 kh\u00ed h\u1eadu nhi\u1ec7t \u0111\u1edbi.<\/li>\n
  • Th\u1ec3 thao:<\/b> V\u1eadn \u0111\u1ed9ng vi\u00ean, ng\u01b0\u1eddi t\u1eadp luy\u1ec7n th\u1ec3 thao trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n

    <\/u1><\/p>\n

    K\u1ebft Lu\u1eadn<\/h2>\n

    \u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha l\u00e0 m\u1ed9t minh ch\u1ee9ng r\u00f5 r\u00e0ng v\u1ec1 vi\u1ec7c \u1ee9ng d\u1ee5ng th\u00e0nh c\u00f4ng k\u1ef9 thu\u1eadt nhi\u1ec7t trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y. V\u1edbi kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t th\u00f4ng qua qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i pha, c\u00e1c s\u1ea3n ph\u1ea9m n\u00e0y kh\u00f4ng ch\u1ec9 mang l\u1ea1i hi\u1ec7u qu\u1ea3 gi\u1ea3i nhi\u1ec7t cao m\u00e0 c\u00f2n an to\u00e0n v\u00e0 ti\u1ec7n l\u1ee3i cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng. C\u00f4ng ngh\u1ec7 n\u00e0y h\u1ee9a h\u1eb9n s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau, g\u00f3p ph\u1ea7n n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha | V\u1eadt li\u1ec7u gi\u1ea3i nhi\u1ec7t n\u00f3ng: C\u00e1ch \u00e1o l\u00e0m m\u00e1t s\u1eed d\u1ee5ng thay \u0111\u1ed5i pha \u0111\u1ec3 \u0111i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 hi\u1ec7u qu\u1ea3 khi tr\u1eddi n\u00f3ng.<\/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\u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha | V\u1eadt li\u1ec7u gi\u1ea3i nhi\u1ec7t n\u00f3ng<\/title>\n<meta name=\"description\" content=\"\u00c1o l\u00e0m m\u00e1t chuy\u1ec3n \u0111\u1ed5i pha | V\u1eadt li\u1ec7u gi\u1ea3i nhi\u1ec7t n\u00f3ng: C\u00e1ch \u00e1o l\u00e0m m\u00e1t s\u1eed d\u1ee5ng thay \u0111\u1ed5i pha \u0111\u1ec3 \u0111i\u1ec1u h\u00f2a nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 hi\u1ec7u qu\u1ea3 khi tr\u1eddi n\u00f3ng.\" \/>\n<meta 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