{"id":743159,"date":"2024-08-18T16:59:25","date_gmt":"2024-08-18T15:59:25","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=743159"},"modified":"2024-08-18T16:59:25","modified_gmt":"2024-08-18T15:59:25","slug":"%e7%ba%ba%e7%bb%87%e5%b7%a5%e7%a8%8b%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\/%e7%ba%ba%e7%bb%87%e5%b7%a5%e7%a8%8b%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u7eba\u7ec7\u5de5\u7a0b\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"<p class=\"sidekick\">\u7eba\u7ec7\u5de5\u7a0b\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u63a2\u8ba8\u70ed\u80fd\u5728\u7eba\u7ec7\u6750\u6599\u4e2d\u7684\u4f20\u9012\u65b9\u5f0f\uff0c\u5305\u62ec\u5bfc\u70ed\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\uff0c\u53ca\u5176\u5728\u7eba\u7ec7\u54c1\u751f\u4ea7\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n<p><img 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auto;\"\/><\/p>\n<h2>\u7eba\u7ec7\u5de5\u7a0b\u4e2d\u7684\u70ed\u4f20\u9012<\/h2>\n<p>\u5728\u7eba\u7ec7\u5de5\u7a0b\u4e2d\uff0c\u70ed\u4f20\u9012\u662f\u4e00\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u8fc7\u7a0b\u3002\u70ed\u4f20\u9012\u4e3b\u8981\u7814\u7a76\u70ed\u91cf\u5982\u4f55\u5728\u4e0d\u540c\u4ecb\u8d28\u4e4b\u95f4\u4ee5\u53ca\u5728\u4e00\u4e2a\u4ecb\u8d28\u5185\u90e8\u4f20\u64ad\u3002\u7eba\u7ec7\u54c1\u5236\u9020\u8fc7\u7a0b\u4e2d\u9700\u8981\u5927\u91cf\u7684\u52a0\u70ed\u548c\u51b7\u5374\u64cd\u4f5c\uff0c\u56e0\u6b64\u7406\u89e3\u548c\u4f18\u5316\u70ed\u4f20\u9012\u8fc7\u7a0b\u5bf9\u63d0\u9ad8\u751f\u4ea7\u6548\u7387\u548c\u4ea7\u54c1\u8d28\u91cf\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h2>\u70ed\u4f20\u9012\u7684\u57fa\u672c\u65b9\u5f0f<\/h2>\n<p>\u70ed\u4f20\u9012\u4e3b\u8981\u6709\u4e09\u79cd\u65b9\u5f0f\uff1a\u4f20\u5bfc\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u3002\u5728\u7eba\u7ec7\u5de5\u7a0b\u4e2d\uff0c\u8fd9\u4e09\u79cd\u65b9\u5f0f\u90fd\u6709\u91cd\u8981\u5e94\u7528\u3002<\/p>\n<ul>\n<li><strong>\u4f20\u5bfc<\/strong>\uff1a\u70ed\u4f20\u5bfc\u662f\u70ed\u91cf\u5728\u56fa\u4f53\u4e2d\u6216\u56fa\u4f53\u4e0e\u6d41\u4f53\u63a5\u89e6\u8868\u9762\u4e4b\u95f4\u7684\u4f20\u9012\u3002\u7eba\u7ec7\u5de5\u7a0b\u4e2d\uff0c\u70ed\u4f20\u5bfc\u5e38\u89c1\u4e8e\u7ec7\u7269\u4e0e\u52a0\u70ed\u677f\u6216\u51b7\u5374\u677f\u4e4b\u95f4\u3002<\/li>\n<li><strong>\u5bf9\u6d41<\/strong>\uff1a\u70ed\u5bf9\u6d41\u662f\u70ed\u91cf\u5728\u6d41\u4f53\u4e2d\u4f20\u9012\u7684\u8fc7\u7a0b\u3002\u7eba\u7ec7\u54c1\u7684\u5e72\u71e5\u548c\u67d3\u8272\u8fc7\u7a0b\u4e2d\uff0c\u7a7a\u6c14\u6216\u6db2\u4f53\u7684\u6d41\u52a8\u4f1a\u5bfc\u81f4\u70ed\u5bf9\u6d41\u3002<\/li>\n<li><strong>\u8f90\u5c04<\/strong>\uff1a\u70ed\u8f90\u5c04\u662f\u70ed\u91cf\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u9012\u7684\u65b9\u5f0f\u3002\u8f90\u5c04\u52a0\u70ed\u8bbe\u5907\u5e38\u7528\u4e8e\u7eba\u7ec7\u54c1\u7684\u8868\u9762\u5904\u7406\u3002<\/li>\n<\/ul>\n<h2>\u516c\u5f0f\u548c\u8ba1\u7b97<\/h2>\n<p>\u5728\u7eba\u7ec7\u5de5\u7a0b\u4e2d\uff0c\u70ed\u4f20\u9012\u7684\u8ba1\u7b97\u5e38\u7528\u4e00\u4e9b\u57fa\u672c\u516c\u5f0f\u3002\u8fd9\u4e9b\u516c\u5f0f\u53ef\u4ee5\u5e2e\u52a9\u5de5\u7a0b\u5e08\u8bbe\u8ba1\u548c\u4f18\u5316\u52a0\u70ed\u6216\u51b7\u5374\u7cfb\u7edf\u3002<\/p>\n<p><strong>\u70ed\u4f20\u5bfc\u516c\u5f0f\uff1a<\/strong><\/p>\n<p>\u5085\u91cc\u53f6\u5b9a\u5f8b\u63cf\u8ff0\u4e86\u70ed\u4f20\u5bfc\u7684\u57fa\u672c\u89c4\u5f8b\uff1a<\/p>\n<p><i>q = -k * A * \\frac{dT}{dx}<\/i><\/p>\n<p>\u5176\u4e2d\uff0c<i>q<\/i> \u662f\u70ed\u6d41\u91cf\uff0c<i>k<\/i> \u662f\u70ed\u5bfc\u7387\uff0c<i>A<\/i> \u662f\u6a2a\u622a\u9762\u79ef\uff0c<i>\\frac{dT}{dx}<\/i> \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<p><strong>\u70ed\u5bf9\u6d41\u516c\u5f0f\uff1a<\/strong><\/p>\n<p>\u70ed\u5bf9\u6d41\u7684\u57fa\u672c\u65b9\u7a0b\u4e3a\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\uff1a<\/p>\n<p><i>q = h * A * \\Delta T<\/i><\/p>\n<p>\u5176\u4e2d\uff0c<i>q<\/i> \u662f\u70ed\u6d41\u91cf\uff0c<i>h<\/i> \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0c<i>A<\/i> \u662f\u4f20\u70ed\u9762\u79ef\uff0c<i>\\Delta T<\/i> \u662f\u6e29\u5dee\u3002<\/p>\n<p><strong>\u70ed\u8f90\u5c04\u516c\u5f0f\uff1a<\/strong><\/p>\n<p>\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\u63cf\u8ff0\u4e86\u70ed\u8f90\u5c04\u7684\u57fa\u672c\u89c4\u5f8b\uff1a<\/p>\n<p><i>q = \\epsilon * \\sigma * A * (T\\_1^4 &#8211; T\\_2^4)<\/i><\/p>\n<p>\u5176\u4e2d\uff0c<i>q<\/i> \u662f\u70ed\u6d41\u91cf\uff0c<i>\\epsilon<\/i> \u662f\u7269\u4f53\u7684\u53d1\u5c04\u7387\uff0c<i>\\sigma<\/i> \u662f\u65af\u8482\u82ac-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0c<i>A<\/i> \u662f\u8f90\u5c04\u9762\u79ef\uff0c<i>T\\_1<\/i> \u548c <i>T\\_2<\/i> \u662f\u4e24\u4e2a\u7269\u4f53\u7684\u7edd\u5bf9\u6e29\u5ea6\u3002<\/p>\n<h2>\u5e94\u7528\u5b9e\u4f8b<\/h2>\n<p>\u5728\u7eba\u7ec7\u5de5\u7a0b\u4e2d\uff0c\u70ed\u4f20\u9012\u7684\u5e94\u7528\u53ef\u4ee5\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ol>\n<li><strong>\u7eba\u7ec7\u54c1\u5e72\u71e5<\/strong>\uff1a\u5e72\u71e5\u673a\u5229\u7528\u70ed\u4f20\u5bfc\u548c\u70ed\u5bf9\u6d41\u6765\u9664\u53bb\u7ea4\u7ef4\u4e2d\u7684\u6c34\u5206\u3002<\/li>\n<li><strong>\u7eba\u7ec7\u54c1\u67d3\u8272<\/strong>\uff1a\u67d3\u8272\u8fc7\u7a0b\u4e2d\u9700\u8981\u52a0\u70ed\u67d3\u6db2\uff0c\u4ee5\u63d0\u9ad8\u67d3\u8272\u6548\u679c\uff0c\u5229\u7528\u7684\u662f\u70ed\u5bf9\u6d41\u548c\u70ed\u4f20\u5bfc\u3002<\/li>\n<li><strong>\u7eba\u7ec7\u54c1\u6574\u7406<\/strong>\uff1a\u5728\u6574\u7406\u8fc7\u7a0b\u4e2d\uff0c\u8f90\u5c04\u52a0\u70ed\u8bbe\u5907\u53ef\u4ee5\u7528\u6765\u5bf9\u7ec7\u7269\u8868\u9762\u8fdb\u884c\u5904\u7406\u3002<\/li>\n<\/ol>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u7406\u89e3\u548c\u5229\u7528\u70ed\u4f20\u9012\u7684\u57fa\u672c\u539f\u7406\uff0c\u5bf9\u7eba\u7ec7\u5de5\u7a0b\u7684\u4f18\u5316\u548c\u521b\u65b0\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002\u901a\u8fc7\u5408\u7406\u63a7\u5236\u70ed\u4f20\u9012\u8fc7\u7a0b\uff0c\u53ef\u4ee5\u63d0\u9ad8\u751f\u4ea7\u6548\u7387\uff0c\u964d\u4f4e\u80fd\u8017\uff0c\u63d0\u5347\u7eba\u7ec7\u54c1\u7684\u8d28\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7eba\u7ec7\u5de5\u7a0b\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u63a2\u8ba8\u70ed\u80fd\u5728\u7eba\u7ec7\u6750\u6599\u4e2d\u7684\u4f20\u9012\u65b9\u5f0f\uff0c\u5305\u62ec\u5bfc\u70ed\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\uff0c\u53ca\u5176\u5728\u7eba\u7ec7\u54c1\u751f\u4ea7\u4e2d\u7684\u5e94\u7528\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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