{"id":752253,"date":"2024-09-02T20:35:14","date_gmt":"2024-09-02T19:35:14","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=752253"},"modified":"2024-09-02T20:35:14","modified_gmt":"2024-09-02T19:35:14","slug":"%e6%9d%90%e6%96%99%e4%b8%ad%e7%9a%84%e7%83%ad%e9%98%bb%e8%a7%a3%e9%87%8a","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%9d%90%e6%96%99%e4%b8%ad%e7%9a%84%e7%83%ad%e9%98%bb%e8%a7%a3%e9%87%8a\/","title":{"rendered":"\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca"},"content":{"rendered":"<p class=\"sidekick\">\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca\uff1a\u4e86\u89e3\u4ec0\u4e48\u662f\u70ed\u963b\u53ca\u5176\u5728\u6750\u6599\u70ed\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u63a2\u8ba8\u70ed\u963b\u7684\u57fa\u672c\u539f\u7406\u53ca\u5176\u5728\u65e5\u5e38\u5e94\u7528\u4e2d\u7684\u5b9e\u9645\u6848\u4f8b\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca.png\" alt=\"\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca<\/h2>\n<p>\u70ed\u963b\u662f\u6307\u6750\u6599\u963b\u788d\u70ed\u91cf\u4f20\u5bfc\u7684\u80fd\u529b\u3002\u5b83\u5728\u70ed\u5de5\u7a0b\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u548c\u8bbe\u8ba1\u66f4\u6709\u6548\u7684\u70ed\u7ba1\u7406\u7cfb\u7edf\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u4ec0\u4e48\u662f\u70ed\u963b\u3001\u5176\u8ba1\u7b97\u65b9\u6cd5\u4ee5\u53ca\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2>\u4ec0\u4e48\u662f\u70ed\u963b\uff1f<\/h2>\n<p>\u7b80\u5355\u6765\u8bf4\uff0c\u70ed\u963b\uff08Thermal Resistance\uff09\u662f\u5bf9\u70ed\u91cf\u4ece\u4e00\u4e2a\u4f4d\u7f6e\u4f20\u8f93\u5230\u53e6\u4e00\u4e2a\u4f4d\u7f6e\u7684\u963b\u788d\u3002\u70ed\u963b\u7c7b\u4f3c\u4e8e\u7535\u963b\u5bf9\u7535\u6d41\u7684\u963b\u788d\u3002\u516c\u5f0f\u4e0a\uff0c\u70ed\u963b\uff08R<sub>th<\/sub>\uff09\u7684\u5355\u4f4d\u662fK\/W\uff08\u5f00\u5c14\u6587\u6bcf\u74e6\uff09\uff0c\u8fd9\u8868\u793a\u5bf9\u6bcf\u74e6\u70ed\u529f\u7387\u4ea7\u751f\u7684\u6e29\u5ea6\u5347\u9ad8\u3002<\/p>\n<h2>\u70ed\u963b\u7684\u8ba1\u7b97\u65b9\u6cd5<\/h2>\n<p>\u70ed\u963b\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n<p><b>R<sub>th<\/sub> = \\(\\frac{\u0394T}{Q}\\)<\/b><\/p>\n<p>\u5176\u4e2d\uff0c\u0394T\u662f\u6e29\u5ea6\u5dee\uff0cQ\u662f\u4f20\u9012\u7684\u70ed\u529f\u7387\u3002\u8fd9\u4e2a\u516c\u5f0f\u5c55\u793a\u4e86\u70ed\u963b\u4e0e\u6e29\u5ea6\u5dee\u548c\u70ed\u529f\u7387\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n<h3>1. \u4f20\u5bfc\u70ed\u963b<\/h3>\n<p>\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u70ed\u963b\u7c7b\u578b\uff0c\u901a\u8fc7\u4ee5\u4e0b\u516c\u5f0f\u8ba1\u7b97\uff1a<\/p>\n<p><b>R<sub>th,cond<\/sub> = \\(\\frac{L}{k \\cdot A}\\)<\/b><\/p>\n<ul>\n<li><b>L<\/b>\uff1a\u6750\u6599\u539a\u5ea6<\/li>\n<li><b>k<\/b>\uff1a\u6750\u6599\u7684\u70ed\u5bfc\u7387<\/li>\n<li><b>A<\/b>\uff1a\u70ed\u4f20\u9012\u7684\u622a\u9762\u79ef<\/li>\n<\/ul>\n<h3>2. \u5bf9\u6d41\u70ed\u963b<\/h3>\n<p>\u5bf9\u6d41\u70ed\u963b\u7528\u4e8e\u63cf\u8ff0\u70ed\u91cf\u901a\u8fc7\u6db2\u4f53\u6216\u6c14\u4f53\u4f20\u9012\u7684\u8fc7\u7a0b\uff1a<\/p>\n<p><b>R<sub>th,conv<\/sub> = \\(\\frac{1}{h \\cdot A}\\)<\/b><\/p>\n<ul>\n<li><b>h<\/b>\uff1a\u5bf9\u6d41\u70ed\u4f20\u9012\u7cfb\u6570<\/li>\n<li><b>A<\/b>\uff1a\u5bf9\u6d41\u4f20\u9012\u7684\u622a\u9762\u79ef<\/li>\n<\/ul>\n<h2>\u70ed\u963b\u7684\u5b9e\u9645\u5e94\u7528<\/h2>\n<p>\u5728\u70ed\u5de5\u7a0b\u4e2d\uff0c\u4e86\u89e3\u548c\u5e94\u7528\u70ed\u963b\u5bf9\u4e8e\u8bbe\u8ba1\u9ad8\u6548\u7684\u70ed\u7ba1\u7406\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><b>\u7535\u5b50\u8bbe\u5907\u6563\u70ed<\/b>\uff1a\u901a\u8fc7\u9009\u62e9\u5177\u6709\u4f4e\u70ed\u963b\u7684\u6750\u6599\u63d0\u9ad8\u6563\u70ed\u6548\u7387\uff0c\u786e\u4fdd\u8bbe\u5907\u7a33\u5b9a\u8fd0\u884c\u3002<\/li>\n<li><b>\u5efa\u7b51\u4fdd\u6e29<\/b>\uff1a\u901a\u8fc7\u4f7f\u7528\u9ad8\u70ed\u963b\u6750\u6599\u6765\u51cf\u5c11\u70ed\u91cf\u6d41\u5931\uff0c\u63d0\u9ad8\u80fd\u6548\u3002<\/li>\n<li><b>\u53d1\u52a8\u673a\u51b7\u5374<\/b>\uff1a\u901a\u8fc7\u6709\u6548\u7ba1\u7406\u70ed\u963b\uff0c\u786e\u4fdd\u53d1\u52a8\u673a\u5728\u6700\u4f73\u6e29\u5ea6\u8303\u56f4\u5185\u8fd0\u884c\u3002<\/li>\n<\/ul>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u70ed\u963b\u662f\u70ed\u5de5\u7a0b\u9886\u57df\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u5bf9\u4e8e\u7406\u89e3\u548c\u8bbe\u8ba1\u70ed\u7ba1\u7406\u7cfb\u7edf\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u6b63\u786e\u8ba1\u7b97\u548c\u5e94\u7528\u70ed\u963b\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u548c\u5229\u7528\u70ed\u80fd\uff0c\u5b9e\u73b0\u66f4\u9ad8\u7684\u80fd\u6548\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6750\u6599\u4e2d\u7684\u70ed\u963b\u89e3\u91ca\uff1a\u4e86\u89e3\u4ec0\u4e48\u662f\u70ed\u963b\u53ca\u5176\u5728\u6750\u6599\u70ed\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u63a2\u8ba8\u70ed\u963b\u7684\u57fa\u672c\u539f\u7406\u53ca\u5176\u5728\u65e5\u5e38\u5e94\u7528\u4e2d\u7684\u5b9e\u9645\u6848\u4f8b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[134],"tags":[],"yoast_head":"<!-- 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