{"id":702597,"date":"2024-11-24T18:07:33","date_gmt":"2024-11-24T17:07:33","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=702597"},"modified":"2024-11-24T18:07:33","modified_gmt":"2024-11-24T17:07:33","slug":"vat-lieu-tien-tien-cho-thiet-bi-trao-doi-nhiet","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/vat-lieu-tien-tien-cho-thiet-bi-trao-doi-nhiet\/","title":{"rendered":"V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t"},"content":{"rendered":"

V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1eadt li\u1ec7u m\u1edbi, c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng trao \u0111\u1ed5i nhi\u1ec7t.<\/p>\n

\"V\u1eadt<\/p>\n

V\u1eadt Li\u1ec7u Ti\u00ean Ti\u1ebfn Cho Thi\u1ebft B\u1ecb Trao \u0110\u1ed5i Nhi\u1ec7t<\/h2>\n

Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 v\u00f4 c\u00f9ng quan tr\u1ecdng trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t nhi\u1ec7t. V\u1eadt li\u1ec7u s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u1ea7n ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t t\u1ed1t, ch\u1ed1ng \u0103n m\u00f2n, v\u00e0 duy tr\u00ec c\u01a1 t\u00ednh \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i\u1ec3m qua c\u00e1c v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t.<\/p>\n

1. V\u1eadt li\u1ec7u truy\u1ec1n th\u1ed1ng v\u00e0 h\u1ea1n ch\u1ebf<\/h2>\n

Tr\u01b0\u1edbc h\u1ebft, ch\u00fang ta c\u1ea7n hi\u1ec3u v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u truy\u1ec1n th\u1ed1ng nh\u01b0 \u0111\u1ed3ng, nh\u00f4m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9. \u0110\u00e2y l\u00e0 c\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn trong c\u00e1c thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t nh\u1edd v\u00e0o t\u00ednh d\u1eabn nhi\u1ec7t cao v\u00e0 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc. Tuy nhi\u00ean, c\u00e1c v\u1eadt li\u1ec7u n\u00e0y c\u0169ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf nh\u01b0:<\/p>\n

<\/p>\n

  • \u0110\u1ed3ng: D\u1eabn nhi\u1ec7t t\u1ed1t nh\u01b0ng d\u1ec5 b\u1ecb \u0103n m\u00f2n trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n
  • Nh\u00f4m: Nh\u1eb9 v\u00e0 d\u1eabn nhi\u1ec7t t\u1ed1t nh\u01b0ng kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao.<\/li>\n
  • Th\u00e9p kh\u00f4ng g\u1ec9: \u0110\u1ed9 b\u1ec1n cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t nh\u01b0ng d\u1eabn nhi\u1ec7t k\u00e9m h\u01a1n \u0111\u1ed3ng v\u00e0 nh\u00f4m.<\/li>\n

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

    2. V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t<\/h2>\n

    \u0110\u1ec3 kh\u1eafc ph\u1ee5c nh\u1eefng h\u1ea1n ch\u1ebf tr\u00ean, c\u00e1c nh\u00e0 khoa h\u1ecdc v\u00e0 k\u1ef9 s\u01b0 \u0111\u00e3 ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng nhi\u1ec1u v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn nh\u01b0 composite kim lo\u1ea1i-ma tr\u1eadn (MMC), g\u1ed1m s\u1ee9, v\u00e0 h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t.<\/p>\n

    2.1 Composite kim lo\u1ea1i-ma tr\u1eadn (MMC)<\/h3>\n

    Composite kim lo\u1ea1i-ma tr\u1eadn (Metal Matrix Composites) l\u00e0 v\u1eadt li\u1ec7u k\u1ebft h\u1ee3p gi\u1eefa kim lo\u1ea1i n\u1ec1n v\u00e0 c\u00e1c h\u1ea1t g\u1ed1m ho\u1eb7c s\u1ee3i. \u01afu \u0111i\u1ec3m c\u1ee7a MMC:<\/p>\n

    <\/p>\n

  • D\u1eabn nhi\u1ec7t t\u1ed1t h\u01a1n so v\u1edbi kim lo\u1ea1i \u0111\u01a1n thu\u1ea7n.<\/li>\n
  • \u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t.<\/li>\n
  • Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n nhi\u1ec1u so v\u1edbi nh\u00f4m v\u00e0 \u0111\u1ed3ng.<\/li>\n

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

    2.2 G\u1ed1m s\u1ee9<\/h3>\n

    G\u1ed1m s\u1ee9 (Ceramics) l\u00e0 v\u1eadt li\u1ec7u ch\u1ecbu nhi\u1ec7t cao v\u00e0 ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. M\u1ed9t s\u1ed1 d\u1ea1ng g\u1ed1m s\u1ee9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m:<\/p>\n

    <\/p>\n

  • Silicon Carbide (SiC): C\u00f3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 d\u1eabn nhi\u1ec7t t\u1ed1t.<\/li>\n
  • Aluminum Oxide (Al2<\/sub>O3<\/sub>): Ch\u1ecbu nhi\u1ec7t v\u00e0 ho\u00e1 ch\u1ea5t t\u1ed1t.<\/li>\n

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

    Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a g\u1ed1m s\u1ee9 l\u00e0 gi\u00f2n v\u00e0 kh\u00f3 gia c\u00f4ng, \u0111\u00f2i h\u1ecfi k\u1ef9 thu\u1eadt ch\u1ebf t\u1ea1o ph\u1ee9c t\u1ea1p.<\/p>\n

    2.3 H\u1ee3p kim \u0111\u1eb7c bi\u1ec7t<\/h3>\n

    Trong c\u00e1c thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t hi\u1ec7n \u0111\u1ea1i, h\u1ee3p kim \u0111\u1eb7c bi\u1ec7t nh\u01b0 Inconel hay Hastelloy c\u0169ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1edd v\u00e0o:<\/p>\n

    <\/p>\n

  • Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t v\u00e0 ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi.<\/li>\n
  • \u0110\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p su\u1ea5t t\u1ed1t.<\/li>\n

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

    3. \u01afu \u0111i\u1ec3m v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn<\/h2>\n

    Nh\u1edd v\u00e0o c\u00e1c \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i, c\u00e1c v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn \u0111\u00e3 gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0:<\/p>\n

    <\/p>\n

  • N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o: C\u00e1c h\u1ec7 th\u1ed1ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 phong \u0111i\u1ec7n.<\/li>\n
  • C\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t: C\u00e1c thi\u1ebft b\u1ecb x\u1eed l\u00fd nhi\u1ec7t \u0111\u1ed9 v\u00e0 h\u00f3a ch\u1ea5t cao.<\/li>\n
  • \u00d4 t\u00f4 v\u00e0 h\u00e0ng kh\u00f4ng: C\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t v\u00e0 qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9.<\/li>\n

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

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

    V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u1eadt li\u1ec7u, c\u00e1c thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t ng\u00e0y c\u00e0ng tr\u1edf n\u00ean hi\u1ec7u qu\u1ea3 v\u00e0 b\u1ec1n b\u1ec9 h\u01a1n. Hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1c v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang s\u1ebd gi\u00fap ch\u00fang ta t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf v\u00e0 s\u1eed d\u1ee5ng c\u00e1c h\u1ec7 th\u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t trong m\u1ecdi l\u0129nh v\u1ef1c c\u1ee7a \u0111\u1eddi s\u1ed1ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>\n","protected":false},"excerpt":{"rendered":"

    V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1eadt li\u1ec7u m\u1edbi, c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng trao \u0111\u1ed5i 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":"\nV\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t<\/title>\n<meta name=\"description\" content=\"V\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn cho thi\u1ebft b\u1ecb trao \u0111\u1ed5i nhi\u1ec7t: T\u00ecm hi\u1ec3u v\u1eadt li\u1ec7u m\u1edbi, c\u1ea3i ti\u1ebfn hi\u1ec7u su\u1ea5t, \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng trao \u0111\u1ed5i nhi\u1ec7t.\" \/>\n<meta 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