{"id":746258,"date":"2024-11-28T05:50:41","date_gmt":"2024-11-28T04:50:41","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=746258"},"modified":"2024-11-28T05:50:41","modified_gmt":"2024-11-28T04:50:41","slug":"%e5%8d%8a%e5%af%bc%e4%bd%93%e5%99%a8%e4%bb%b6%e7%9a%84%e7%83%ad%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%8d%8a%e5%af%bc%e4%bd%93%e5%99%a8%e4%bb%b6%e7%9a%84%e7%83%ad%e5%88%86%e6%9e%90\/","title":{"rendered":"\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790"},"content":{"rendered":"<p class=\"sidekick\">\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790\uff1a\u901a\u8fc7\u5206\u6790\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u70ed\u7ba1\u7406\u65b9\u6cd5\uff0c\u4e86\u89e3\u5982\u4f55\u4f18\u5316\u6563\u70ed\u6027\u80fd\uff0c\u63d0\u5347\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u6548\u7387\u548c\u4f7f\u7528\u5bff\u547d\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790.png\" alt=\"\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790<\/h2>\n<p>\u534a\u5bfc\u4f53\u5668\u4ef6\u5e7f\u6cdb\u5e94\u7528\u4e8e\u5404\u79cd\u7535\u5b50\u8bbe\u5907\u4e2d\uff0c\u4f46\u662f\u5b83\u4eec\u5728\u5de5\u4f5c\u8fc7\u7a0b\u4e2d\u4f1a\u4ea7\u751f\u70ed\u91cf\u3002\u8fd9\u4e9b\u70ed\u91cf\u5982\u679c\u4e0d\u80fd\u6709\u6548\u6392\u9664\uff0c\u5c06\u4f1a\u5f71\u54cd\u5668\u4ef6\u7684\u6027\u80fd\uff0c\u751a\u81f3\u5bfc\u81f4\u5176\u5931\u6548\u3002\u56e0\u800c\uff0c\u5bf9\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<h2>\u70ed\u5206\u6790\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u70ed\u5206\u6790\u662f\u7814\u7a76\u7cfb\u7edf\u5728\u70ed\u73af\u5883\u4e2d\u7684\u884c\u4e3a\uff0c\u5305\u62ec\u70ed\u91cf\u7684\u4ea7\u751f\u3001\u4f20\u8f93\u548c\u6563\u5931\u7684\u8fc7\u7a0b\u3002\u5bf9\u4e8e\u534a\u5bfc\u4f53\u5668\u4ef6\uff0c\u4e3b\u8981\u8003\u8651\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u70ed\u6e90\uff1a\u534a\u5bfc\u4f53\u5668\u4ef6\u5728\u5de5\u4f5c\u65f6\u7531\u4e8e\u7535\u963b\u7b49\u6548\u5e94\u4f1a\u4ea7\u751f\u70ed\u91cf\u3002<\/li>\n<li>\u70ed\u4f20\u5bfc\uff1a\u70ed\u91cf\u4ece\u534a\u5bfc\u4f53\u5668\u4ef6\u5185\u90e8\u4f20\u5bfc\u5230\u5916\u90e8\u73af\u5883\u7684\u8fc7\u7a0b\u3002<\/li>\n<li>\u70ed\u5bf9\u6d41\uff1a\u70ed\u91cf\u4ece\u5668\u4ef6\u8868\u9762\u901a\u8fc7\u5468\u56f4\u6d41\u4f53\uff08\u901a\u5e38\u662f\u7a7a\u6c14\uff09\u4f20\u9012\u8d70\u7684\u8fc7\u7a0b\u3002<\/li>\n<li>\u70ed\u8f90\u5c04\uff1a\u70ed\u91cf\u4ee5\u7535\u78c1\u6ce2\u7684\u5f62\u5f0f\u4ece\u5668\u4ef6\u8868\u9762\u5411\u5916\u6563\u53d1\u3002<\/li>\n<\/ul>\n<h2>\u70ed\u91cf\u7684\u8ba1\u7b97<\/h2>\n<p>\u4e3a\u4e86\u8fdb\u884c\u70ed\u5206\u6790\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u8ba1\u7b97\u534a\u5bfc\u4f53\u5668\u4ef6\u5de5\u4f5c\u7684\u53d1\u70ed\u529f\u7387\u3002\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u516c\u5f0f\u6765\u8ba1\u7b97\uff1a<\/p>\n<p>P = I^2 * R<\/p>\n<p>\u5176\u4e2d\uff0c<em>P<\/em> \u4ee3\u8868\u529f\u7387\uff0c<em>I<\/em> \u662f\u7535\u6d41\uff0c<em>R<\/em> \u662f\u7535\u963b\u3002<\/p>\n<h2>\u70ed\u4f20\u5bfc\u5206\u6790<\/h2>\n<p>\u70ed\u4f20\u5bfc\u662f\u70ed\u91cf\u4ece\u9ad8\u6e29\u533a\u57df\u4f20\u5411\u4f4e\u6e29\u533a\u57df\u7684\u4e00\u79cd\u73b0\u8c61\uff0c\u9075\u5faa\u5085\u91cc\u53f6\u5b9a\u5f8b\uff1a<\/p>\n<p>q = -k * A * \\(\\frac{dT}{dx}\\)<\/p>\n<p>\u5176\u4e2d\uff0c<em>q<\/em> \u4ee3\u8868\u70ed\u6d41\u5bc6\u5ea6\uff0c<em>k<\/em> \u662f\u5bfc\u70ed\u7cfb\u6570\uff0c<em>A<\/em> \u662f\u622a\u9762\u79ef\uff0c\\(\\frac{dT}{dx}\\) \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<h2>\u70ed\u5bf9\u6d41\u5206\u6790<\/h2>\n<p>\u5728\u70ed\u5bf9\u6d41\u4e2d\uff0c\u70ed\u91cf\u901a\u8fc7\u6d41\u52a8\u7684\u6d41\u4f53\uff08\u5982\u7a7a\u6c14\u3001\u6c34\u7b49\uff09\u4f20\u9012\u3002\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\u63cf\u8ff0\u4e86\u8fd9\u4e00\u8fc7\u7a0b\uff1a<\/p>\n<p>q = h * A * (T_s &#8211; T_\\infty)<\/p>\n<p>\u5176\u4e2d\uff0c<em>h<\/em> \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0c<em>A<\/em> \u662f\u8868\u9762\u79ef\uff0c<em>T_s<\/em> \u662f\u8868\u9762\u6e29\u5ea6\uff0c<em>T_\\infty<\/em> \u662f\u6d41\u4f53\u7684\u6e29\u5ea6\u3002<\/p>\n<h2>\u70ed\u8f90\u5c04\u5206\u6790<\/h2>\n<p>\u70ed\u8f90\u5c04\u662f\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u9012\u70ed\u91cf\u7684\u73b0\u8c61\uff0c\u7b26\u5408\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\uff1a<\/p>\n<p>P = \u03b5 * \u03c3 * A * T^4<\/p>\n<p>\u5176\u4e2d\uff0c<em>\u03b5<\/em> \u662f\u53d1\u5c04\u7387\uff0c<em>\u03c3<\/em> \u662f\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0c<em>A<\/em> \u662f\u8868\u9762\u79ef\uff0c<em>T<\/em> \u662f\u7edd\u5bf9\u6e29\u5ea6\u3002<\/p>\n<h2>\u70ed\u7ba1\u7406\u6280\u672f<\/h2>\n<p>\u4e3a\u4e86\u786e\u4fdd\u534a\u5bfc\u4f53\u5668\u4ef6\u5728\u5de5\u4f5c\u8fc7\u7a0b\u4e2d\u4fdd\u6301\u5728\u53ef\u63a5\u53d7\u7684\u6e29\u5ea6\u8303\u56f4\u5185\uff0c\u4e00\u4e9b\u5e38\u89c1\u7684\u70ed\u7ba1\u7406\u6280\u672f\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u70ed\u6c89\uff08heat sink\uff09\u6765\u589e\u52a0\u6563\u70ed\u9762\u79ef\u3002<\/li>\n<li>\u5e94\u7528\u5bfc\u70ed\u6750\u6599\uff0c\u5982\u5bfc\u70ed\u80f6\u6216\u5bfc\u70ed\u57ab\uff0c\u63d0\u5347\u70ed\u4f20\u5bfc\u6548\u7387\u3002<\/li>\n<li>\u91c7\u7528\u98ce\u6247\u6216\u6db2\u51b7\u7cfb\u7edf\u8fdb\u884c\u5f3a\u5236\u5bf9\u6d41\u6563\u70ed\u3002<\/li>\n<li>\u8bbe\u8ba1\u901a\u98ce\u826f\u597d\u7684\u5c01\u88c5\u7ed3\u6784\uff0c\u4fc3\u8fdb\u81ea\u7136\u5bf9\u6d41\u3002<\/li>\n<\/ol>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u6709\u6548\u7684\u70ed\u5206\u6790\u548c\u7ba1\u7406\u6280\u672f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u53ef\u9760\u6027\u548c\u5bff\u547d\u3002\u638c\u63e1\u70ed\u5206\u6790\u7684\u57fa\u672c\u6982\u5ff5\u548c\u65b9\u6cd5\uff0c\u5bf9\u4e8e\u5de5\u7a0b\u5e08\u6765\u8bf4\u662f\u81f3\u5173\u91cd\u8981\u7684\u6280\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u70ed\u5206\u6790\uff1a\u901a\u8fc7\u5206\u6790\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u70ed\u7ba1\u7406\u65b9\u6cd5\uff0c\u4e86\u89e3\u5982\u4f55\u4f18\u5316\u6563\u70ed\u6027\u80fd\uff0c\u63d0\u5347\u534a\u5bfc\u4f53\u5668\u4ef6\u7684\u6548\u7387\u548c\u4f7f\u7528\u5bff\u547d\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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