{"id":679663,"date":"2024-11-04T03:03:27","date_gmt":"2024-11-04T02:03:27","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=679663"},"modified":"2024-11-04T03:03:27","modified_gmt":"2024-11-04T02:03:27","slug":"van-gian-no-nhiet-co-the-cai-thien-hieu-suat-lam-lanh-khong","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/van-gian-no-nhiet-co-the-cai-thien-hieu-suat-lam-lanh-khong\/","title":{"rendered":"Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng?"},"content":{"rendered":"<p class=\"sidekick\">Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng? T\u00ecm hi\u1ec3u c\u00e1ch van gi\u00e3n n\u1edf nhi\u1ec7t t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh l\u00e0m l\u1ea1nh v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/van_gian_no_nhiet_co_the_cai_thien_hieu_suat_lam_lanh_khong.png\" alt=\"Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng?\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Van Gi\u00e3n N\u1edf Nhi\u1ec7t C\u00f3 Th\u1ec3 C\u1ea3i Thi\u1ec7n Hi\u1ec7u Su\u1ea5t L\u00e0m L\u1ea1nh Kh\u00f4ng?<\/h2>\n<p>Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, van gi\u00e3n n\u1edf nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u00e0m l\u1ea1nh trong h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta \u0111\u00e1nh gi\u00e1 xem n\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh hay kh\u00f4ng.<\/p>\n<h2>C\u01a1 Ch\u1ebf Ho\u1ea1t \u0110\u1ed9ng C\u1ee7a Van Gi\u00e3n N\u1edf Nhi\u1ec7t<\/h2>\n<p>Van gi\u00e3n n\u1edf nhi\u1ec7t ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch gi\u1ea3m \u00e1p su\u1ea5t c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh t\u1eeb m\u1ee9c cao trong m\u00e1y n\u00e9n xu\u1ed1ng m\u1ee9c th\u1ea5p h\u01a1n trong d\u00e0n bay h\u01a1i. Khi ch\u1ea5t l\u00e0m l\u1ea1nh \u0111i qua van gi\u00e3n n\u1edf, n\u00f3 s\u1ebd gi\u00e3n n\u1edf v\u00e0 h\u1ea1 nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec1u n\u00e0y gi\u00fap cho ch\u1ea5t l\u00e0m l\u1ea1nh h\u1ea5p th\u1ee5 nhi\u1ec7t t\u1eeb m\u00f4i tr\u01b0\u1eddng xung quanh, t\u1ea1o ra hi\u1ec7u \u1ee9ng l\u00e0m l\u1ea1nh. Qu\u00e1 tr\u00ecnh n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft d\u01b0\u1edbi d\u1ea1ng ph\u01b0\u01a1ng tr\u00ecnh c\u01a1 b\u1ea3n:<\/p>\n<p><code>Q = m * (h2 - h1)<\/code><\/p>\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li><code>Q<\/code> l\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng h\u1ea5p th\u1ee5<\/li>\n<li><code>m<\/code> l\u00e0 l\u01b0u l\u01b0\u1ee3ng ch\u1ea5t l\u00e0m l\u1ea1nh<\/li>\n<li><code>h1<\/code> v\u00e0 <code>h2<\/code> l\u00e0 enthalpy c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh tr\u01b0\u1edbc v\u00e0 sau khi gi\u00e3n n\u1edf<\/li>\n<\/ul>\n<h2>C\u1ea3i Thi\u1ec7n Hi\u1ec7u Su\u1ea5t L\u00e0m L\u1ea1nh<\/h2>\n<p>M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a van gi\u00e3n n\u1edf nhi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh. Van n\u00e0y c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc l\u1ed7 m\u1edf d\u1ef1a tr\u00ean nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t c\u1ee7a ch\u1ea5t l\u00e0m l\u1ea1nh, gi\u00fap duy tr\u00ec \u00e1p su\u1ea5t t\u1ed1i \u01b0u trong h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y ngh\u0129a l\u00e0 van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 gi\u00fap h\u1ec7 th\u1ed1ng l\u00e0m vi\u1ec7c \u1edf \u0111i\u1ec3m hi\u1ec7u su\u1ea5t cao nh\u1ea5t. M\u1ed9t s\u1ed1 l\u1ee3i \u00edch c\u1ee5 th\u1ec3 bao g\u1ed3m:<\/p>\n<ol>\n<li><strong>Ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng:<\/strong> B\u1eb1ng c\u00e1ch duy tr\u00ec \u00e1p su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u01b0u, van gi\u00e3n n\u1edf nhi\u1ec7t gi\u00fap h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n, gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9:<\/strong> Van gi\u00e3n n\u1edf nhi\u1ec7t gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong d\u00e0n bay h\u01a1i, \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng l\u00e0m l\u1ea1nh \u0111\u1ed3ng \u0111\u1ec1u.<\/li>\n<li><strong>Gi\u1ea3m hao m\u00f2n:<\/strong> V\u1edbi vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh h\u1ee3p l\u00fd, c\u00e1c b\u1ed9 ph\u1eadn trong h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh \u00edt b\u1ecb hao m\u00f2n, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/li>\n<\/ol>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>Van gi\u00e3n n\u1edf nhi\u1ec7t \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh. Nh\u1edd c\u01a1 ch\u1ebf t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh, van n\u00e0y gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 gi\u1ea3m hao m\u00f2n, gi\u00fap h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n. N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm c\u00e1ch \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh c\u1ee7a m\u00ecnh, vi\u1ec7c s\u1eed d\u1ee5ng van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng? T\u00ecm hi\u1ec3u c\u00e1ch van gi\u00e3n n\u1edf nhi\u1ec7t t\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh l\u00e0m l\u1ea1nh v\u00e0 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng.<\/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>Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng?<\/title>\n<meta name=\"description\" content=\"Van gi\u00e3n n\u1edf nhi\u1ec7t c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh kh\u00f4ng? 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