{"id":697666,"date":"2024-09-26T08:15:14","date_gmt":"2024-09-26T07:15:14","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=697666"},"modified":"2024-09-26T08:15:14","modified_gmt":"2024-09-26T07:15:14","slug":"nhiet-dong-luc-hoc-nang-cao-cho-thiet-ke-hvac","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/nhiet-dong-luc-hoc-nang-cao-cho-thiet-ke-hvac\/","title":{"rendered":"Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao cho thi\u1ebft k\u1ebf HVAC"},"content":{"rendered":"<p class=\"sidekick\">Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao cho thi\u1ebft k\u1ebf HVAC: T\u00ecm hi\u1ec3u c\u00e1ch \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/nhiet_dong_luc_hoc_nang_cao_cho_thiet_ke_hvac.png\" alt=\"Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao cho thi\u1ebft k\u1ebf HVAC\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Nhi\u1ec7t \u0110\u1ed9ng L\u1ef1c H\u1ecdc N\u00e2ng Cao Cho Thi\u1ebft K\u1ebf HVAC<\/h2>\n<p>Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc l\u00e0 n\u1ec1n t\u1ea3ng quan tr\u1ecdng cho vi\u1ec7c thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed (HVAC). Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1c nguy\u00ean l\u00fd nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong vi\u1ec7c thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng HVAC.<\/p>\n<h2>Nguy\u00ean L\u00fd Nhi\u1ec7t \u0110\u1ed9ng L\u1ef1c H\u1ecdc C\u01a1 B\u1ea3n<\/h2>\n<p>\u0110\u1ea7u ti\u00ean, ch\u00fang ta c\u1ea7n hi\u1ec3u c\u00e1c nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc. C\u00e1c nguy\u00ean l\u00fd n\u00e0y bao g\u1ed3m:<\/p>\n<p><u1><\/p>\n<li><strong>Nguy\u00ean l\u00fd th\u1ee9 nh\u1ea5t:<\/strong> N\u0103ng l\u01b0\u1ee3ng kh\u00f4ng t\u1ef1 sinh ra hay m\u1ea5t \u0111i m\u00e0 ch\u1ec9 chuy\u1ec3n t\u1eeb d\u1ea1ng n\u00e0y sang d\u1ea1ng kh\u00e1c.<\/li>\n<li><strong>Nguy\u00ean l\u00fd th\u1ee9 hai:<\/strong> Trong m\u1ecdi qu\u00e1 tr\u00ecnh n\u0103ng l\u01b0\u1ee3ng, t\u1ed5ng entropy c\u1ee7a h\u1ec7 v\u00e0 m\u00f4i tr\u01b0\u1eddng lu\u00f4n t\u0103ng.<\/li>\n<p><\/u1><\/p>\n<p>\u00c1p d\u1ee5ng nh\u1eefng nguy\u00ean l\u00fd n\u00e0y v\u00e0o thi\u1ebft k\u1ebf HVAC gi\u00fap ta c\u00f3 c\u00e1i nh\u00ecn s\u00e2u s\u1eafc h\u01a1n v\u1ec1 c\u00e1ch nhi\u1ec7t n\u0103ng v\u00e0 c\u01a1 n\u0103ng t\u01b0\u01a1ng t\u00e1c v\u00e0 chuy\u1ec3n bi\u1ebfn trong h\u1ec7 th\u1ed1ng HVAC.<\/p>\n<h2>Chu Tr\u00ecnh Carnot v\u00e0 Hi\u1ec7u Su\u1ea5t Nhi\u1ec7t \u0110\u1ed9ng L\u1ef1c H\u1ecdc<\/h2>\n<p>M\u1ed9t trong nh\u1eefng m\u00f4 h\u00ecnh quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc HVAC l\u00e0 chu tr\u00ecnh Carnot. Chu tr\u00ecnh n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh hi\u1ec7u su\u1ea5t l\u00fd t\u01b0\u1edfng c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc.<\/p>\n<p>Hi\u1ec7u su\u1ea5t c\u1ee7a chu tr\u00ecnh Carnot \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00f4ng th\u1ee9c:<\/p>\n<p>\\[<br \/>\n\\eta = 1 &#8211; \\frac{T_{l\u1ea1nh}}{T_{n\u00f3ng}}<br \/>\n\\]\n<p>Trong \u0111\u00f3: <\/p>\n<p><u1><\/p>\n<li>\\( \\eta \\) l\u00e0 hi\u1ec7u su\u1ea5t<\/li>\n<li>\\( T_{l\u1ea1nh} \\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n l\u1ea1nh (t\u00ednh b\u1eb1ng Kelvin)<\/li>\n<li>\\( T_{n\u00f3ng} \\) l\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a ngu\u1ed3n n\u00f3ng (t\u00ednh b\u1eb1ng Kelvin)<\/li>\n<p><\/u1><\/p>\n<p>Bi\u1ebft \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t l\u00fd t\u01b0\u1edfng n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng HVAC hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 t\u1ed1i \u01b0u h\u00f3a n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5.<\/p>\n<h2>Chu Tr\u00ecnh Nhi\u1ec7t v\u00e0 \u1ee8ng D\u1ee5ng trong Thi\u1ebft K\u1ebf HVAC<\/h2>\n<p>C\u00e1c chu tr\u00ecnh nhi\u1ec7t kh\u00e1c nh\u01b0 chu tr\u00ecnh Rankine, chu tr\u00ecnh Brayton c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC hi\u1ec7n \u0111\u1ea1i. M\u1ed7i chu tr\u00ecnh s\u1ebd c\u00f3 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 \u1ee9ng d\u1ee5ng ri\u00eang:<\/p>\n<p><u1><\/p>\n<li><strong>Chu tr\u00ecnh Rankine:<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng l\u00f2 h\u01a1i v\u00e0 cung c\u1ea5p \u0111i\u1ec7n.<\/li>\n<li><strong>Chu tr\u00ecnh Brayton:<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c turbine kh\u00ed v\u00e0 m\u00e1y ph\u00e1t \u0111i\u1ec7n.<\/li>\n<p><\/u1><\/p>\n<p>Vi\u1ec7c hi\u1ec3u v\u00e0 \u00e1p d\u1ee5ng c\u00e1c chu tr\u00ecnh n\u00e0y gi\u00fap t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t v\u00e0 gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t n\u0103ng l\u01b0\u1ee3ng cho c\u00e1c h\u1ec7 th\u1ed1ng HVAC.<\/p>\n<h2>T\u1ed1i \u01afu H\u00f3a Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/h2>\n<p>M\u1ed9t m\u1ee5c ti\u00eau quan tr\u1ecdng trong thi\u1ebft k\u1ebf HVAC l\u00e0 t\u1ed1i \u01b0u h\u00f3a ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng. Vi\u1ec7c n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed m\u00e0 c\u00f2n gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed ph\u00e1t th\u1ea3i nh\u00e0 k\u00ednh, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng. M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a bao g\u1ed3m:<\/p>\n<p><u1><\/p>\n<li><strong>Thi\u1ebft k\u1ebf c\u00e1ch nhi\u1ec7t hi\u1ec7u qu\u1ea3:<\/strong> S\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t t\u1ed1t \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t nhi\u1ec7t.<\/li>\n<li><strong>S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng:<\/strong> L\u1ef1a ch\u1ecdn c\u00e1c m\u00e1y n\u00e9n, b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 qu\u1ea1t gi\u00f3 c\u00f3 hi\u1ec7u su\u1ea5t cao.<\/li>\n<li><strong>\u0110i\u1ec1u khi\u1ec3n th\u00f4ng minh:<\/strong> \u1ee8ng d\u1ee5ng c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n th\u00f4ng minh \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng HVAC.<\/li>\n<p><\/u1><\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong thi\u1ebft k\u1ebf v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c h\u1ec7 th\u1ed1ng HVAC. Hi\u1ec3u v\u00e0 \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean l\u00fd nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc gi\u00fap c\u00e1c k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7u qu\u1ea3, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc n\u00e2ng cao cho thi\u1ebft k\u1ebf HVAC: T\u00ecm hi\u1ec3u c\u00e1ch \u1ee9ng d\u1ee5ng nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc \u0111\u1ec3 t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, th\u00f4ng gi\u00f3 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":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - 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