{"id":694076,"date":"2024-09-23T21:47:03","date_gmt":"2024-09-23T20:47:03","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=694076"},"modified":"2024-09-23T21:47:03","modified_gmt":"2024-09-23T20:47:03","slug":"vat-lieu-sieu-dieu-chinh-tinh-nang-nhiet-do-chinh-xac-ung-dung-nang-luong","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/vat-lieu-sieu-dieu-chinh-tinh-nang-nhiet-do-chinh-xac-ung-dung-nang-luong\/","title":{"rendered":"V\u1eadt Li\u1ec7u Si\u00eau \u0110i\u1ec1u Ch\u1ec9nh | T\u00ednh N\u0103ng Nhi\u1ec7t \u0110\u1ed9 Ch\u00ednh X\u00e1c, \u1ee8ng D\u1ee5ng N\u0103ng L\u01b0\u1ee3ng"},"content":{"rendered":"<p class=\"sidekick\">V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh: hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c, ti\u1ec1m n\u0103ng ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ng\u00e0nh c\u00f4ng nghi\u1ec7p ti\u00ean ti\u1ebfn.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/vat_lieu_sieu_dieu_chinh_tinh_nang_nhiet_do_chinh_xac_ung_dung_nang_luong.png\" alt=\"V\u1eadt Li\u1ec7u Si\u00eau \u0110i\u1ec1u Ch\u1ec9nh | T\u00ednh N\u0103ng Nhi\u1ec7t \u0110\u1ed9 Ch\u00ednh X\u00e1c, \u1ee8ng D\u1ee5ng N\u0103ng L\u01b0\u1ee3ng\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>V\u1eadt Li\u1ec7u Si\u00eau \u0110i\u1ec1u Ch\u1ec9nh | T\u00ednh N\u0103ng Nhi\u1ec7t \u0110\u1ed9 Ch\u00ednh X\u00e1c, \u1ee8ng D\u1ee5ng N\u0103ng L\u01b0\u1ee3ng<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, v\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh \u0111ang tr\u1edf th\u00e0nh m\u1ed9t ch\u1ee7 \u0111\u1ec1 hot do t\u00ednh n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u00fang. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh v\u00e0 duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u1ee7 \u0111\u1ed9ng, mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng.<\/p>\n<h2>T\u00ednh N\u0103ng Nhi\u1ec7t \u0110\u1ed9 Ch\u00ednh X\u00e1c<\/h2>\n<p>V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng thay \u0111\u1ed5i t\u00ednh ch\u1ea5t nhi\u1ec7t c\u1ee7a m\u00ecnh khi g\u1eb7p c\u00e1c \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ch\u00fang ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3. C\u00e1c t\u00ednh n\u0103ng n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n<p><u1><\/p>\n<li><b>\u0110\u1ed9 nh\u1ea1y nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c:<\/b> V\u1eadt li\u1ec7u c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00ednh d\u1eabn nhi\u1ec7t (k) khi \u0111\u1ea1t \u0111\u1ebfn m\u1ed9t nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3, gi\u00fap duy tr\u00ec m\u1ee9c nhi\u1ec7t \u0111\u1ed9 mong mu\u1ed1n.<\/li>\n<li><b>Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao:<\/b> V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 ch\u1ecbu nhi\u1ec7t cao, gi\u1eef v\u1eefng c\u1ea5u tr\u00fac v\u00e0 t\u00ednh n\u0103ng ngay c\u1ea3 trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><b>\u0110\u1ed9 d\u1eabn nhi\u1ec7t thay \u0111\u1ed5i:<\/b> Thay \u0111\u1ed5i t\u00ednh d\u1eabn nhi\u1ec7t d\u1ef1a tr\u00ean nhu c\u1ea7u, c\u00f3 th\u1ec3 l\u00e0m t\u0103ng ho\u1eb7c gi\u1ea3m vi\u1ec7c truy\u1ec1n nhi\u1ec7t (Q) qua v\u1eadt li\u1ec7u.<\/li>\n<p><\/u1><\/p>\n<h2>\u1ee8ng D\u1ee5ng N\u0103ng L\u01b0\u1ee3ng<\/h2>\n<p>C\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a v\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh trong qu\u1ea3n l\u00fd v\u00e0 t\u1ed1i \u01b0u h\u00f3a n\u0103ng l\u01b0\u1ee3ng l\u00e0 r\u1ea5t l\u1edbn. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 n\u1ed5i b\u1eadt:<\/p>\n<p><u1><\/p>\n<li><b>H\u1ec7 th\u1ed1ng s\u01b0\u1edfi v\u00e0 l\u00e0m m\u00e1t:<\/b> V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC (Heating, Ventilation, and Air Conditioning) \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u01b0\u1edfi \u1ea5m v\u00e0 l\u00e0m m\u00e1t, gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m chi ph\u00ed.<\/li>\n<li><b>Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed:<\/b> C\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u n\u00e0y \u0111\u1ec3 qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9, tr\u00e1nh t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t (overheating) v\u00e0 n\u00e2ng cao tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li><b>N\u0103ng l\u01b0\u1ee3ng t\u00e1i t\u1ea1o:<\/b> Trong c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng nh\u01b0 solar panels v\u00e0 wind turbines, v\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 gi\u00fap t\u1ed1i \u01b0u vi\u1ec7c thu gi\u1eef v\u00e0 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<p><\/u1><\/p>\n<p>M\u1ed9t v\u00ed d\u1ee5 \u0111\u1eb7c bi\u1ec7t v\u1ec1 c\u00f4ng th\u1ee9c t\u1ecfa nhi\u1ec7t qua m\u1ed9t v\u1eadt li\u1ec7u d\u1eabn nhi\u1ec7t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau:<\/p>\n<p>Q = k * A * (dT\/dx)<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<p><o1><\/p>\n<li>Q: M\u1ee9c n\u0103ng l\u01b0\u1ee3ng truy\u1ec1n \u0111i (Watt)<\/li>\n<li>k: \u0110\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u (W\/mK)<\/li>\n<li>A: Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t truy\u1ec1n nhi\u1ec7t (m\u00b2)<\/li>\n<li>dT\/dx: Gradient nhi\u1ec7t \u0111\u1ed9 theo chi\u1ec1u d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u (K\/m)<\/li>\n<p><\/o1><\/p>\n<p>\u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng th\u1ee9c quan tr\u1ecdng gi\u00fap \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t c\u1ee7a m\u1ed9t v\u1eadt li\u1ec7u d\u1eabn nhi\u1ec7t, v\u00e0 v\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 t\u1ed1i \u01b0u h\u00f3a th\u00f4ng s\u1ed1 &#8220;k&#8221; \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u nhi\u1ec7t \u0111\u1ed9 c\u1ee5 th\u1ec3.<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 nhi\u1ec7t, v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3. C\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng c\u1ee7a ch\u00fang kh\u00f4ng ch\u1ec9 gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng m\u00e0 c\u00f2n m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i m\u1edbi trong vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>V\u1eadt li\u1ec7u si\u00eau \u0111i\u1ec1u ch\u1ec9nh: hi\u1ec7u su\u1ea5t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c, ti\u1ec1m n\u0103ng ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf trong ng\u00e0nh c\u00f4ng nghi\u1ec7p ti\u00ean ti\u1ebfn.<\/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 - 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