{"id":697017,"date":"2024-10-16T18:58:38","date_gmt":"2024-10-16T17:58:38","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=697017"},"modified":"2024-10-16T18:58:38","modified_gmt":"2024-10-16T17:58:38","slug":"toi-uu-hoa-nhiet-dong-hoc-cho-chu-trinh-lam-lanh","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/toi-uu-hoa-nhiet-dong-hoc-cho-chu-trinh-lam-lanh\/","title":{"rendered":"T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh"},"content":{"rendered":"<p class=\"sidekick\">T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng, gi\u1ea3m ti\u00eau hao v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 l\u00e0m l\u1ea1nh.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/toi_uu_hoa_nhiet_dong_hoc_cho_chu_trinh_lam_lanh.png\" alt=\"T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>T\u1ed1i \u01afu H\u00f3a Nhi\u1ec7t \u0110\u1ed9ng H\u1ecdc Cho Chu Tr\u00ecnh L\u00e0m L\u1ea1nh<\/h2>\n<p>Chu tr\u00ecnh l\u00e0m l\u1ea1nh l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng quan tr\u1ecdng c\u1ee7a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t. \u0110\u1ec3 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3, ng\u01b0\u1eddi ta ph\u1ea3i t\u1ed1i \u01b0u h\u00f3a c\u00e1c quy tr\u00ecnh v\u00e0 thi\u1ebft b\u1ecb \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n hao n\u0103ng l\u01b0\u1ee3ng v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u m\u1ed9t s\u1ed1 nguy\u00ean l\u00fd c\u01a1 b\u1ea3n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a chu tr\u00ecnh l\u00e0m l\u1ea1nh.<\/p>\n<h2>Nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a chu tr\u00ecnh l\u00e0m l\u1ea1nh<\/h2>\n<p>M\u1ed9t chu tr\u00ecnh l\u00e0m l\u1ea1nh \u0111i\u1ec3n h\u00ecnh th\u01b0\u1eddng bao g\u1ed3m b\u1ed1n th\u00e0nh ph\u1ea7n ch\u00ednh: m\u00e1y n\u00e9n, b\u1ed9 ng\u01b0ng t\u1ee5, van ti\u1ebft l\u01b0u v\u00e0 b\u1ed9 bay h\u01a1i. Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee7a m\u1ed9t chu tr\u00ecnh l\u00e0m l\u1ea1nh \u0111\u01a1n gi\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 qua c\u00e1c giai \u0111o\u1ea1n sau:<\/p>\n<p><u1><\/p>\n<li>M\u00e1y n\u00e9n n\u00e9n kh\u00ed l\u1ea1nh t\u1eeb \u00e1p su\u1ea5t th\u1ea5p v\u00e0 nhi\u1ec7t \u0111\u1ed9 th\u1ea5p l\u00ean \u00e1p su\u1ea5t cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li>Kh\u00ed n\u00e9n \u0111\u01b0\u1ee3c chuy\u1ec3n qua b\u1ed9 ng\u01b0ng t\u1ee5, n\u01a1i n\u00f3 t\u1ecfa nhi\u1ec7t ra m\u00f4i tr\u01b0\u1eddng v\u00e0 chuy\u1ec3n t\u1eeb th\u1ec3 kh\u00ed sang th\u1ec3 l\u1ecfng.<\/li>\n<li>Ch\u1ea5t l\u1ecfng l\u1ea1nh \u0111i qua van ti\u1ebft l\u01b0u, gi\u1ea3m \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9.<\/li>\n<li>Ch\u1ea5t l\u1ecfng l\u1ea1nh bay h\u01a1i trong b\u1ed9 bay h\u01a1i, h\u1ea5p th\u1ee5 nhi\u1ec7t t\u1eeb m\u00f4i tr\u01b0\u1eddng l\u00e0m l\u1ea1nh v\u00e0 chuy\u1ec3n t\u1eeb th\u1ec3 l\u1ecfng sang th\u1ec3 kh\u00ed. Qu\u00e1 tr\u00ecnh n\u00e0y ho\u00e0n t\u1ea5t m\u1ed9t chu tr\u00ecnh v\u00e0 kh\u00ed l\u1ea1nh \u0111\u01b0\u1ee3c \u0111\u01b0a tr\u1edf l\u1ea1i m\u00e1y n\u00e9n \u0111\u1ec3 b\u1eaft \u0111\u1ea7u l\u1ea1i chu tr\u00ecnh.<\/li>\n<p><\/u1><\/p>\n<h2>Ph\u01b0\u01a1ng ph\u00e1p t\u1ed1i \u01b0u h\u00f3a chu tr\u00ecnh l\u00e0m l\u1ea1nh<\/h2>\n<p><o1><\/p>\n<li>\n    <strong>Ch\u1ecdn ch\u1ea5t l\u00e0m l\u1ea1nh ph\u00f9 h\u1ee3p:<\/strong> Ch\u1ea5t l\u00e0m l\u1ea1nh l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ed9t chu tr\u00ecnh l\u00e0m l\u1ea1nh. Vi\u1ec7c ch\u1ecdn ch\u1ea5t l\u00e0m l\u1ea1nh ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n hao n\u0103ng l\u01b0\u1ee3ng v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. C\u00e1c ch\u1ea5t l\u00e0m l\u1ea1nh nh\u01b0 R134a, R410A th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, nh\u01b0ng c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111ang t\u00ecm ki\u1ebfm c\u00e1c ch\u1ea5t l\u00e0m l\u1ea1nh m\u1edbi c\u00f3 hi\u1ec7u su\u1ea5t cao h\u01a1n v\u00e0 \u00edt g\u00e2y h\u1ea1i cho m\u00f4i tr\u01b0\u1eddng.\n  <\/li>\n<li>\n    <strong>T\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh n\u00e9n:<\/strong> M\u00e1y n\u00e9n chi\u1ebfm \u0111a ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 trong chu tr\u00ecnh l\u00e0m l\u1ea1nh. S\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i m\u00e1y n\u00e9n c\u00f3 hi\u1ec7u su\u1ea5t cao nh\u01b0 m\u00e1y n\u00e9n bi\u1ebfn t\u1ea7n ho\u1eb7c m\u00e1y n\u00e9n xo\u1eafn \u1ed1c c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng.\n  <\/li>\n<li>\n    <strong>C\u1ea3i thi\u1ec7n trao \u0111\u1ed5i nhi\u1ec7t:<\/strong> Hi\u1ec7u n\u0103ng c\u1ee7a b\u1ed9 ng\u01b0ng t\u1ee5 v\u00e0 b\u1ed9 bay h\u01a1i c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a to\u00e0n b\u1ed9 chu tr\u00ecnh. S\u1eed d\u1ee5ng c\u00e1c b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t c\u00f3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cao, c\u00f9ng v\u1edbi vi\u1ec7c b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, c\u00f3 th\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 gi\u1ea3m t\u1ed5n hao n\u0103ng l\u01b0\u1ee3ng.\n  <\/li>\n<li>\n    <strong>\u0110i\u1ec1u khi\u1ec3n v\u00e0 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng:<\/strong> S\u1eed d\u1ee5ng c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n th\u00f4ng minh \u0111\u1ec3 theo d\u00f5i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh li\u00ean t\u1ee5c. C\u00e1c c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, \u00e1p su\u1ea5t v\u00e0 c\u00e1c thi\u1ebft b\u1ecb gi\u00e1m s\u00e1t kh\u00e1c c\u00f3 th\u1ec3 gi\u00fap t\u1ed1i \u01b0u h\u00f3a ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u1ea3nh b\u00e1o khi h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u0111\u00fang c\u00e1ch.\n  <\/li>\n<li>\n    <strong>T\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf v\u00e0 b\u1ed1 tr\u00ed h\u1ec7 th\u1ed1ng:<\/strong> B\u1ed1 tr\u00ed c\u00e1c th\u00e0nh ph\u1ea7n h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u1ed5n hao \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t, t\u1eeb \u0111\u00f3 n\u00e2ng cao hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a chu tr\u00ecnh l\u00e0m l\u1ea1nh.\n  <\/li>\n<p><\/o1><\/p>\n<h2>C\u00f4ng th\u1ee9c li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t c\u1ee7a m\u1ed9t chu tr\u00ecnh l\u00e0m l\u1ea1nh, ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 hi\u1ec7u qu\u1ea3 COP (Coefficient of Performance), \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a nh\u01b0 sau:<\/p>\n<p>\n    \\[<br \/>\n    COP = \\frac{Q}{W}<br \/>\n    \\]\n<\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<p><u1><\/p>\n<li><strong>Q:<\/strong> l\u01b0\u1ee3ng nhi\u1ec7t lo\u1ea1i b\u1ecf t\u1eeb kh\u00f4ng gian c\u1ea7n l\u00e0m l\u1ea1nh (\u0111\u01a1n v\u1ecb: Joule ho\u1eb7c kWh)<\/li>\n<li><strong>W:<\/strong> c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh (\u0111\u01a1n v\u1ecb: Joule ho\u1eb7c kWh)<\/li>\n<p><\/u1><\/p>\n<h2>K\u1ebft lu\u1eadn<\/h2>\n<p>T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh l\u00e0 m\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh. B\u1eb1ng c\u00e1ch ch\u1ecdn ch\u1ea5t l\u00e0m l\u1ea1nh ph\u00f9 h\u1ee3p, t\u1ed1i \u01b0u h\u00f3a m\u00e1y n\u00e9n, c\u1ea3i thi\u1ec7n trao \u0111\u1ed5i nhi\u1ec7t, ki\u1ec3m so\u00e1t v\u00e0 gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng, v\u00e0 t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf b\u1ed1 tr\u00ed, ch\u00fang ta c\u00f3 th\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh m\u1ed9t c\u00e1ch \u0111\u00e1ng k\u1ec3.<\/p>\n<p>Vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 \u00e1p d\u1ee5ng c\u00e1c nguy\u00ean t\u1eafc n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng m\u00e0 c\u00f2n \u0111\u00f3ng g\u00f3p v\u00e0o vi\u1ec7c b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng, gi\u1ea3m ti\u00eau hao v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 l\u00e0m l\u1ea1nh.<\/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 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh<\/title>\n<meta name=\"description\" content=\"T\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t \u0111\u1ed9ng h\u1ecdc cho chu tr\u00ecnh l\u00e0m l\u1ea1nh: C\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u00e0 k\u1ef9 thu\u1eadt n\u00e2ng cao hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng, gi\u1ea3m ti\u00eau hao v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 l\u00e0m l\u1ea1nh.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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