{"id":743292,"date":"2024-10-25T11:42:17","date_gmt":"2024-10-25T10:42:17","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=743292"},"modified":"2024-10-25T11:42:17","modified_gmt":"2024-10-25T10:42:17","slug":"%e5%88%b6%e5%86%b7%e7%b3%bb%e7%bb%9f%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%b6%e5%86%b7%e7%b3%bb%e7%bb%9f%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"<p class=\"sidekick\">\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u4e86\u89e3\u51b7\u5374\u8bbe\u5907\u5982\u4f55\u901a\u8fc7\u5bfc\u70ed\u548c\u5bf9\u6d41\u5b9e\u73b0\u70ed\u91cf\u4ea4\u6362\uff0c\u4fdd\u6301\u73af\u5883\u51c9\u723d\u5e76\u63d0\u9ad8\u80fd\u6548\u3002\u8fd9\u79cd\u8fc7\u7a0b\u5728\u73b0\u4ee3\u7a7a\u8c03\u548c\u51b0\u7bb1\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012.png\" alt=\"\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012<\/h2>\n<p>\u5236\u51b7\u7cfb\u7edf\u5728\u6211\u4eec\u65e5\u5e38\u751f\u6d3b\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\uff0c\u6d89\u53ca\u5230\u5bb6\u5ead\u51b0\u7bb1\u3001\u7a7a\u8c03\u4ee5\u53ca\u5de5\u4e1a\u51b7\u5374\u8bbe\u5907\u3002\u8fd9\u4e9b\u7cfb\u7edf\u7684\u6838\u5fc3\u539f\u7406\u662f\u901a\u8fc7\u4e00\u7cfb\u5217\u70ed\u4f20\u9012\u8fc7\u7a0b\u6765\u964d\u4f4e\u548c\u7ef4\u6301\u4f4e\u6e29\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012\u57fa\u672c\u539f\u7406\u3002<\/p>\n<h3>\u70ed\u4f20\u9012\u7684\u57fa\u672c\u5f62\u5f0f<\/h3>\n<p>\u70ed\u4f20\u9012\u4e3b\u8981\u6709\u4e09\u79cd\u5f62\u5f0f\uff1a<\/p>\n<p><u1><\/p>\n<li>\u4f20\u5bfc\uff08Conduction\uff09\uff1a\u70ed\u80fd\u5728\u7269\u8d28\u5185\u90e8\u6216\u7269\u4f53\u4e0e\u7269\u4f53\u63a5\u89e6\u65f6\u901a\u8fc7\u5206\u5b50\u632f\u52a8\u4f20\u9012\u3002<\/li>\n<li>\u5bf9\u6d41\uff08Convection\uff09\uff1a\u70ed\u80fd\u901a\u8fc7\u6d41\u4f53\uff08\u5982\u7a7a\u6c14\u6216\u6db2\u4f53\uff09\u7684\u5b8f\u89c2\u8fd0\u52a8\u4f20\u64ad\u3002<\/li>\n<li>\u8f90\u5c04\uff08Radiation\uff09\uff1a\u70ed\u80fd\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u64ad\uff0c\u65e0\u9700\u4efb\u4f55\u5a92\u4ecb\u3002<\/li>\n<p><\/u1><\/p>\n<h3>\u5236\u51b7\u7cfb\u7edf\u7684\u5de5\u4f5c\u539f\u7406<\/h3>\n<p>\u5236\u51b7\u7cfb\u7edf\u901a\u8fc7\u5438\u6536\u5185\u90e8\u70ed\u91cf\u5e76\u5c06\u5176\u91ca\u653e\u5230\u5916\u90e8\u6765\u7ef4\u6301\u4f4e\u6e29\u3002\u8fd9\u7531\u4ee5\u4e0b\u51e0\u4e2a\u5173\u952e\u90e8\u4ef6\u5b8c\u6210\uff1a<\/p>\n<p><u1><\/p>\n<li>\u84b8\u53d1\u5668\uff1a\u5229\u7528\u4f4e\u538b\u5236\u51b7\u5242\u5438\u6536\u70ed\u91cf\uff0c\u4f7f\u5176\u84b8\u53d1\u5e76\u5e26\u8d70\u70ed\u91cf\u3002<\/li>\n<li>\u538b\u7f29\u673a\uff1a\u5c06\u4f4e\u538b\u5236\u51b7\u5242\u538b\u7f29\u6210\u9ad8\u538b\uff0c\u9ad8\u6e29\u9ad8\u538b\u6c14\u4f53\u968f\u540e\u8fdb\u5165\u51b7\u51dd\u5668\u3002<\/li>\n<li>\u51b7\u51dd\u5668\uff1a\u901a\u8fc7\u6563\u70ed\u5668\u5c06\u70ed\u91cf\u91ca\u653e\u5230\u5468\u56f4\u73af\u5883\uff0c\u4f7f\u9ad8\u538b\u6c14\u4f53\u51b7\u51dd\u6210\u6db2\u4f53\u3002<\/li>\n<li>\u81a8\u80c0\u9600\uff1a\u63a7\u5236\u5236\u51b7\u5242\u7684\u6d41\u91cf\uff0c\u5e76\u964d\u4f4e\u5176\u538b\u529b\uff0c\u4f7f\u5176\u8fdb\u5165\u84b8\u53d1\u5668\u91cd\u590d\u5faa\u73af\u3002<\/li>\n<p><\/u1><\/p>\n<h3>\u70ed\u4f20\u9012\u65b9\u7a0b<\/h3>\n<p>\u4e86\u89e3\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012\u9700\u8981\u7528\u5230\u4e00\u4e9b\u57fa\u672c\u7684\u7269\u7406\u65b9\u7a0b\uff1a<\/p>\n<p><u1><\/p>\n<li><strong>\u5085\u7acb\u53f6\u5b9a\u5f8b\uff08\u4f20\u5bfc\uff09<\/strong>\uff1a<br \/>\n    <span style=\"font-size:1.5em;\">\\( q = -k \\frac{dT}{dx} \\)<\/span><br \/>\n    \u5176\u4e2d\uff0c\\( q \\) \u4ee3\u8868\u70ed\u901a\u91cf\u5bc6\u5ea6\uff0c\\( k \\) \u662f\u6750\u6599\u7684\u5bfc\u70ed\u7cfb\u6570\uff0c\\( dT \\) \u662f\u6e29\u5ea6\u68af\u5ea6\uff0c\\( dx \\) \u4ee3\u8868\u8ddd\u79bb\u3002<\/li>\n<li><strong>\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\uff08\u5bf9\u6d41\uff09<\/strong>\uff1a<br \/>\n    <span style=\"font-size:1.5em;\">\\( q = h A (T_s &#8211; T_{\\infty}) \\)<\/span><br \/>\n    \u5176\u4e2d\uff0c\\( q \\) \u4ee3\u8868\u70ed\u6d41\u91cf\uff0c\\( h \\) \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0c\\( A \\) \u662f\u70ed\u4ea4\u6362\u9762\u79ef\uff0c\\( T_s \\) \u548c \\( T_{\\infty} \\) \u5206\u522b\u662f\u7269\u4f53\u8868\u9762\u548c\u5468\u56f4\u6d41\u4f53\u7684\u6e29\u5ea6\u3002<\/li>\n<li><strong>\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\uff08\u8f90\u5c04\uff09<\/strong>\uff1a<br \/>\n    <span style=\"font-size:1.5em;\">\\( q = \\sigma \\epsilon A (T^4 &#8211; T_0^4) \\)<\/span><br \/>\n    \u5176\u4e2d\uff0c\\( q \\) \u4ee3\u8868\u8f90\u5c04\u70ed\u6d41\u91cf\uff0c\\( \\sigma \\) \u662f\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0c\\( \\epsilon \\) \u662f\u6750\u6599\u7684\u53d1\u5c04\u7387\uff0c\\( A \\) \u662f\u8868\u9762\u79ef\uff0c\\( T \\) \u548c \\( T_0 \\) \u5206\u522b\u662f\u8f90\u5c04\u4f53\u548c\u73af\u5883\u7684\u7edd\u5bf9\u6e29\u5ea6\u3002<\/li>\n<p><\/u1><\/p>\n<h3>\u70ed\u4f20\u9012\u7684\u5e94\u7528<\/h3>\n<p>\u5728\u5236\u51b7\u7cfb\u7edf\u4e2d\uff0c\u6bcf\u4e00\u79cd\u4f20\u70ed\u65b9\u5f0f\u90fd\u6709\u5176\u5173\u952e\u4f5c\u7528\uff1a<\/p>\n<p><u1><\/p>\n<li><strong>\u4f20\u5bfc<\/strong>\uff1a\u84b8\u53d1\u5668\u548c\u51b7\u51dd\u5668\u7684\u70ed\u4ea4\u6362\u677f\u901a\u8fc7\u4f20\u5bfc\u5c06\u70ed\u91cf\u4f20\u9012\u7ed9\u5236\u51b7\u5242\u3002<\/li>\n<li><strong>\u5bf9\u6d41<\/strong>\uff1a\u51b7\u51dd\u5668\u901a\u8fc7\u7a7a\u6c14\u6216\u6db2\u4f53\u5bf9\u6d41\u5c06\u70ed\u91cf\u5e26\u8d70\u3002<\/li>\n<li><strong>\u8f90\u5c04<\/strong>\uff1a\u867d\u7136\u8f90\u5c04\u5728\u5236\u51b7\u7cfb\u7edf\u4e2d\u5f71\u54cd\u8f83\u5c0f\uff0c\u4f46\u4ecd\u5b58\u5728\u8f90\u5c04\u70ed\u4f20\u9012\u4f5c\u7528\u3002<\/li>\n<p><\/u1><\/p>\n<p>\u901a\u8fc7\u638c\u63e1\u8fd9\u4e9b\u70ed\u4f20\u9012\u65b9\u5f0f\u53ca\u5176\u65b9\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5e76\u4f18\u5316\u5236\u51b7\u7cfb\u7edf\u7684\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5236\u51b7\u7cfb\u7edf\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u4e86\u89e3\u51b7\u5374\u8bbe\u5907\u5982\u4f55\u901a\u8fc7\u5bfc\u70ed\u548c\u5bf9\u6d41\u5b9e\u73b0\u70ed\u91cf\u4ea4\u6362\uff0c\u4fdd\u6301\u73af\u5883\u51c9\u723d\u5e76\u63d0\u9ad8\u80fd\u6548\u3002\u8fd9\u79cd\u8fc7\u7a0b\u5728\u73b0\u4ee3\u7a7a\u8c03\u548c\u51b0\u7bb1\u4e2d\u5c24\u4e3a\u91cd\u8981\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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