{"id":709344,"date":"2024-09-26T09:24:06","date_gmt":"2024-09-26T08:24:06","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=709344"},"modified":"2024-09-26T09:24:06","modified_gmt":"2024-09-26T08:24:06","slug":"he-thong-hvac-la-gi-va-hoat-dong-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/he-thong-hvac-la-gi-va-hoat-dong-nhu-the-nao\/","title":{"rendered":"H\u1ec7 Th\u1ed1ng HVAC L\u00e0 G\u00ec v\u00e0 Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?"},"content":{"rendered":"<p class=\"sidekick\">H\u1ec7 th\u1ed1ng HVAC l\u00e0 g\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1ch h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed duy tr\u00ec m\u00f4i tr\u01b0\u1eddng tho\u1ea3i m\u00e1i trong t\u00f2a nh\u00e0.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/he_thong_hvac_la_gi_va_hoat_dong_nhu_the_nao.png\" alt=\"H\u1ec7 Th\u1ed1ng HVAC L\u00e0 G\u00ec v\u00e0 Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>H\u1ec7 Th\u1ed1ng HVAC L\u00e0 G\u00ec v\u00e0 Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/h2>\n<p>HVAC l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Heating, Ventilation, and Air Conditioning (H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed). \u0110\u00e2y l\u00e0 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p v\u00e0 duy tr\u00ec c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng kh\u00ed trong m\u1ed9t kh\u00f4ng gian c\u1ee5 th\u1ec3, nh\u1eb1m \u0111\u1ea3m b\u1ea3o s\u1ef1 tho\u1ea3i m\u00e1i v\u00e0 an to\u00e0n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u chi ti\u1ebft v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng HVAC v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h2>Th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng HVAC<\/h2>\n<ul>\n<li><b>H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m (Heating):<\/b> \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n c\u00f3 nhi\u1ec7m v\u1ee5 cung c\u1ea5p nhi\u1ec7t v\u00e0o m\u00f9a l\u1ea1nh. C\u00f3 nhi\u1ec1u lo\u1ea1i h\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m nh\u01b0 l\u00f2 s\u01b0\u1edfi gas, l\u00f2 s\u01b0\u1edfi \u0111i\u1ec7n v\u00e0 s\u01b0\u1edfi b\u1eb1ng d\u1ea7u.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 (Ventilation):<\/b> Th\u00e0nh ph\u1ea7n n\u00e0y gi\u00fap l\u01b0u th\u00f4ng kh\u00f4ng kh\u00ed trong nh\u00e0, thay th\u1ebf kh\u00f4ng kh\u00ed c\u0169 v\u00e0 b\u1ea9n b\u1eb1ng kh\u00f4ng kh\u00ed trong l\u00e0nh t\u1eeb b\u00ean ngo\u00e0i. \u0110i\u1ec1u n\u00e0y quan tr\u1ecdng \u0111\u1ec3 ki\u1ec3m so\u00e1t m\u1ee9c \u0111\u1ed9 \u1ea9m v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed (Air Conditioning):<\/b> H\u1ec7 th\u1ed1ng n\u00e0y gi\u00fap l\u00e0m m\u00e1t kh\u00f4ng gian v\u00e0o m\u00f9a h\u00e8, \u0111\u1ed3ng th\u1eddi c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 \u1ea9m.<\/li>\n<\/ul>\n<h2>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng HVAC<\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a HVAC, ch\u00fang ta c\u1ea7n hi\u1ec3u v\u1ec1 c\u00e1ch t\u1eebng th\u00e0nh ph\u1ea7n ho\u1ea1t \u0111\u1ed9ng:<\/p>\n<h3>1. H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m<\/h3>\n<p>H\u1ec7 th\u1ed1ng s\u01b0\u1edfi \u1ea5m th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch \u0111\u1ed1t nhi\u00ean li\u1ec7u (gas, d\u1ea7u) ho\u1eb7c s\u1eed d\u1ee5ng \u0111i\u1ec7n \u0111\u1ec3 t\u1ea1o nhi\u1ec7t. Nhi\u1ec7t n\u00e0y sau \u0111\u00f3 \u0111\u01b0\u1ee3c truy\u1ec1n v\u00e0o kh\u00f4ng kh\u00ed th\u00f4ng qua b\u1ed9 trao \u0111\u1ed5i nhi\u1ec7t ho\u1eb7c th\u00f4ng qua c\u00e1c \u0111\u1eb7t \u1ed1ng d\u1eabn nhi\u1ec7t qua kh\u1eafp ng\u00f4i nh\u00e0.<\/p>\n<h3>2. H\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3<\/h3>\n<p>Th\u00f4ng gi\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n th\u00f4ng qua qu\u1ea1t th\u00f4ng gi\u00f3 ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng trao \u0111\u1ed5i nhi\u1ec7t. Kh\u00f4ng kh\u00ed t\u01b0\u01a1i t\u1eeb b\u00ean ngo\u00e0i \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u00e0 kh\u00f4ng kh\u00ed c\u0169 \u0111\u01b0\u1ee3c \u0111\u1ea9y ra ngo\u00e0i. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u \u0111\u1ed9 \u1ea9m v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m.<\/p>\n<h3>3. H\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed<\/h3>\n<p>\u0110i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t chu tr\u00ecnh l\u00e0m m\u00e1t, trong \u0111\u00f3 m\u1ed9t ch\u1ea5t l\u1ea1nh (th\u01b0\u1eddng l\u00e0 Freon) \u0111\u01b0\u1ee3c n\u00e9n v\u00e0 gi\u00e3n n\u1edf \u0111\u1ec3 h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng nhi\u1ec7t. Qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap l\u00e0m m\u00e1t kh\u00f4ng kh\u00ed trong nh\u00e0 v\u00e0 gi\u1ea3m \u0111\u1ed9 \u1ea9m.<\/p>\n<p>M\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n v\u1ec1 chu tr\u00ecnh l\u00e0m m\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n nh\u01b0 sau:<\/p>\n<p>\\[<br \/>\nQ_{cooling} = \\dot{m} * c_p * \\Delta T<br \/>\n\\]\n<p>Trong \u0111\u00f3:<\/p>\n<ul>\n<li><i>Q<sub>cooling<\/sub><\/i> l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf.<\/li>\n<li>\\(\\dot{m}\\) l\u00e0 l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00e0m l\u1ea1nh.<\/li>\n<li><i>c<sub>p<\/sub><\/i> l\u00e0 nhi\u1ec7t dung ri\u00eang \u1edf \u00e1p su\u1ea5t kh\u00f4ng \u0111\u1ed5i.<\/li>\n<li>\\(\\Delta T\\) l\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/li>\n<\/ul>\n<h2>L\u1ee3i \u00edch c\u1ee7a h\u1ec7 th\u1ed1ng HVAC<\/h2>\n<p>H\u1ec7 th\u1ed1ng HVAC mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch nh\u01b0:<\/p>\n<ul>\n<li>C\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed trong nh\u00e0.<\/li>\n<li>\u0110i\u1ec1u ch\u1ec9nh nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m, gi\u00fap t\u1ea1o s\u1ef1 tho\u1ea3i m\u00e1i.<\/li>\n<li>T\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t n\u0103ng l\u01b0\u1ee3ng n\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 duy tr\u00ec \u0111\u00fang c\u00e1ch.<\/li>\n<\/ul>\n<p>Hi\u1ec3u r\u00f5 v\u1ec1 h\u1ec7 th\u1ed1ng HVAC v\u00e0 c\u00e1ch n\u00f3 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n duy tr\u00ec m\u00f4i tr\u01b0\u1eddng s\u1ed1ng tho\u1ea3i m\u00e1i m\u00e0 c\u00f2n gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u1ec7 th\u1ed1ng HVAC l\u00e0 g\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? B\u00e0i vi\u1ebft gi\u1ea3i th\u00edch c\u00e1ch h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, th\u00f4ng gi\u00f3 v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed duy tr\u00ec m\u00f4i tr\u01b0\u1eddng tho\u1ea3i m\u00e1i trong t\u00f2a nh\u00e0.<\/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>H\u1ec7 Th\u1ed1ng HVAC L\u00e0 G\u00ec v\u00e0 Ho\u1ea1t \u0110\u1ed9ng Nh\u01b0 Th\u1ebf N\u00e0o?<\/title>\n<meta name=\"description\" content=\"H\u1ec7 th\u1ed1ng HVAC l\u00e0 g\u00ec v\u00e0 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? 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