{"id":754346,"date":"2024-11-27T17:42:53","date_gmt":"2024-11-27T16:42:53","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=754346"},"modified":"2024-11-27T17:42:53","modified_gmt":"2024-11-27T16:42:53","slug":"%e5%88%86%e5%b1%82%e6%b5%81%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%88%86%e5%b1%82%e6%b5%81%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"<p class=\"sidekick\">\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u4e86\u89e3\u70ed\u91cf\u5728\u5c42\u6d41\u72b6\u6001\u4e0b\u7684\u4f20\u9012\u65b9\u5f0f\uff0c\u89e3\u6790\u6e29\u5ea6\u68af\u5ea6\u7684\u5f71\u54cd\uff0c\u63a2\u8ba8\u5de5\u7a0b\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\u4e0e\u4f18\u5316\u7b56\u7565\u3002<\/p>\n<p><img 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\/>\n\\[ q = -k \\frac{dT}{dx} \\]\n\u5176\u4e2d\uff0c\\( q \\) \u662f\u70ed\u6d41\u5bc6\u5ea6\uff0c\\( k \\) \u662f\u5bfc\u70ed\u7cfb\u6570\uff0c\\( \\frac{dT}{dx} \\) \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<p>\u5bf9\u4e8e\u5bf9\u6d41\u4f20\u70ed\uff0c\u5e38\u7528\u7684\u65b9\u7a0b\u662f\uff1a<br \/>\n\\[ q = hA(T_s &#8211; T_\\infty) \\]\n\u5176\u4e2d\uff0c\\( q \\) \u662f\u70ed\u4f20\u9012\u91cf\uff0c\\( h \\) \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0c\\( A \\) \u662f\u8868\u9762\u79ef\uff0c\\( T_s \\) \u662f\u8868\u9762\u6e29\u5ea6\uff0c\\( T_\\infty \\) \u662f\u6d41\u4f53\u6e29\u5ea6\u3002<\/p>\n<h2>\u5e94\u7528\u5b9e\u4f8b<\/h2>\n<p>\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012\u5728\u8bb8\u591a\u5de5\u7a0b\u5e94\u7528\u4e2d\u90fd\u5f97\u5230\u91cd\u89c6\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li>\u70ed\u4ea4\u6362\u5668\uff1a\u5206\u5c42\u6d41\u901a\u8fc7\u7ba1\u9053\u8fdb\u884c\u4f20\u70ed\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5de5\u4e1a\u51b7\u5374\u548c\u52a0\u70ed\u7cfb\u7edf\u3002<\/li>\n<li>\u7535\u5b50\u51b7\u5374\uff1a\u901a\u8fc7\u5206\u5c42\u6d41\u52a8\u7684\u51b7\u5374\u6db2\u6765\u5e26\u8d70\u7535\u5b50\u8bbe\u5907\u4ea7\u751f\u7684\u70ed\u91cf\u3002<\/li>\n<li>\u5efa\u7b51\u7a7a\u8c03\u7cfb\u7edf\uff1a\u5229\u7528\u7a7a\u6c14\u7684\u5206\u5c42\u6d41\u52a8\u5b9e\u73b0\u6709\u6548\u7684\u5ba4\u5185\u6e29\u5ea6\u8c03\u63a7\u3002<\/li>\n<\/ul>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012\u662f\u4e00\u4e2a\u590d\u6742\u4f46\u81f3\u5173\u91cd\u8981\u7684\u8fc7\u7a0b\uff0c\u6d89\u53ca\u5bfc\u70ed\u548c\u5bf9\u6d41\u4e24\u79cd\u4e3b\u8981\u673a\u5236\u3002\u7406\u89e3\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012\uff0c\u6709\u52a9\u4e8e\u63d0\u5347\u5de5\u7a0b\u8bbe\u8ba1\u548c\u4f18\u5316\uff0c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6548\u80fd\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u5c42\u6d41\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u4e86\u89e3\u70ed\u91cf\u5728\u5c42\u6d41\u72b6\u6001\u4e0b\u7684\u4f20\u9012\u65b9\u5f0f\uff0c\u89e3\u6790\u6e29\u5ea6\u68af\u5ea6\u7684\u5f71\u54cd\uff0c\u63a2\u8ba8\u5de5\u7a0b\u8bbe\u8ba1\u4e2d\u7684\u5e94\u7528\u4e0e\u4f18\u5316\u7b56\u7565\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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