{"id":751987,"date":"2024-10-13T02:26:55","date_gmt":"2024-10-13T01:26:55","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=751987"},"modified":"2024-10-13T02:26:55","modified_gmt":"2024-10-13T01:26:55","slug":"%e7%90%86%e8%a7%a3%e8%be%90%e5%b0%84%e4%bc%a0%e7%83%ad","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e7%90%86%e8%a7%a3%e8%be%90%e5%b0%84%e4%bc%a0%e7%83%ad\/","title":{"rendered":"\u7406\u89e3\u8f90\u5c04\u4f20\u70ed"},"content":{"rendered":"<p class=\"sidekick\">\u7406\u89e3\u8f90\u5c04\u4f20\u70ed\uff1a\u4e86\u89e3\u70ed\u80fd\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u9012\u7684\u57fa\u672c\u539f\u7406\uff0c\u5982\u4f55\u5728\u65e0\u63a5\u89e6\u60c5\u51b5\u4e0b\u5b9e\u73b0\u70ed\u91cf\u4f20\u8f93\uff0c\u4ee5\u53ca\u5176\u5728\u5de5\u7a0b\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u7406\u89e3\u8f90\u5c04\u4f20\u70ed.png\" alt=\"\u7406\u89e3\u8f90\u5c04\u4f20\u70ed\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u7406\u89e3\u8f90\u5c04\u4f20\u70ed<\/h2>\n<p>\u8f90\u5c04\u4f20\u70ed\u662f\u70ed\u4f20\u9012\u7684\u4e00\u79cd\u57fa\u672c\u65b9\u5f0f\uff0c\u5176\u4ed6\u4e24\u79cd\u4e3a\u4f20\u5bfc\u548c\u5bf9\u6d41\u3002\u7406\u89e3\u8f90\u5c04\u4f20\u70ed\u5bf9\u4e8e\u70ed\u5de5\u7a0b\u9886\u57df\u4e2d\u7684\u8bbe\u8ba1\u548c\u4f18\u5316\u81f3\u5173\u91cd\u8981\uff0c\u7279\u522b\u662f\u5728\u6d89\u53ca\u9ad8\u6e29\u548c\u771f\u7a7a\u73af\u5883\u7684\u5e94\u7528\u4e2d\u3002<\/p>\n<h2>\u8f90\u5c04\u4f20\u70ed\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u8f90\u5c04\u4f20\u70ed\u662f\u901a\u8fc7\u7535\u78c1\u6ce2\u7684\u5f62\u5f0f\u8fdb\u884c\u7684\u70ed\u91cf\u4f20\u9012\u3002\u6240\u6709\u7269\u4f53\u53ea\u8981\u6e29\u5ea6\u9ad8\u4e8e\u7edd\u5bf9\u96f6\u5ea6\uff080K\uff09\uff0c\u5c31\u4f1a\u4ee5\u7535\u78c1\u6ce2\u7684\u5f62\u5f0f\u8f90\u5c04\u80fd\u91cf\u3002\u8fd9\u4e9b\u7535\u78c1\u6ce2\u5305\u62ec\u53ef\u89c1\u5149\u3001\u7ea2\u5916\u7ebf\u548c\u5176\u4ed6\u9891\u6bb5\u7684\u8f90\u5c04\u3002<\/p>\n<h2>\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b<\/h2>\n<p>\u8f90\u5c04\u4f20\u70ed\u7684\u4e00\u4e2a\u91cd\u8981\u5b9a\u5f8b\u662f\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\uff0c\u5b83\u63cf\u8ff0\u4e86\u4e00\u4e2a\u7269\u4f53\u8f90\u5c04\u51fa\u7684\u603b\u80fd\u91cf\u4e0e\u5176\u8868\u9762\u6e29\u5ea6\u4e4b\u95f4\u7684\u5173\u7cfb\u3002\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\u7684\u6570\u5b66\u8868\u8fbe\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p>\n\\[ Q = \\sigma \\cdot A \\cdot T^4 \\]\n<\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><i>Q<\/i> \u662f\u8f90\u5c04\u80fd\u91cf (\u5355\u4f4d\uff1a\u74e6\u7279\uff0cW)<\/li>\n<li><i>\u03c3<\/i> \u662f\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5e38\u6570 (\u7ea6\u4e3a \\(5.67 \\times 10^{-8} \\text{W\/m}^2\\text{K}^4\\))<\/li>\n<li><i>A<\/i> \u662f\u8f90\u5c04\u8868\u9762\u79ef (\u5355\u4f4d\uff1a\u5e73\u65b9\u7c73\uff0cm<sup>2<\/sup>)<\/li>\n<li><i>T<\/i> \u662f\u7edd\u5bf9\u6e29\u5ea6 (\u5355\u4f4d\uff1a\u5f00\u5c14\u6587\uff0cK)<\/li>\n<\/ul>\n<h2>\u7070\u4f53\u548c\u9ed1\u4f53<\/h2>\n<p>\u5728\u8f90\u5c04\u4f20\u70ed\u4e2d\uff0c\u6211\u4eec\u5e38\u5e38\u533a\u5206\u201c\u9ed1\u4f53\u201d\u548c\u201c\u7070\u4f53\u201d\u3002\u9ed1\u4f53\u662f\u7406\u60f3\u60c5\u51b5\u4e0b\u80fd\u591f\u5438\u6536\u548c\u8f90\u5c04\u6240\u6709\u5165\u5c04\u8f90\u5c04\u80fd\u91cf\u7684\u7269\u4f53\u3002\u7070\u4f53\u5219\u662f\u53ea\u5438\u6536\u548c\u8f90\u5c04\u90e8\u5206\u80fd\u91cf\u7684\u7269\u4f53\u3002<\/p>\n<p>\u9ed1\u4f53\u7684\u8f90\u5c04\u80fd\u91cf\u53ef\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\u5b8c\u5168\u63cf\u8ff0\u3002\u800c\u7070\u4f53\u8f90\u5c04\u7684\u5b9e\u9645\u80fd\u91cf\u5219\u4e3a\uff1a<\/p>\n<p>\n\\[ Q = \\epsilon \\cdot \\sigma \\cdot A \\cdot T^4 \\]\n<\/p>\n<p>\u5176\u4e2d\uff0c<i>\u03b5<\/i> \u79f0\u4e3a\u7269\u4f53\u7684\u53d1\u5c04\u7387\uff0c0 < <i>\u03b5<\/i> \u2264 1\u3002\u5bf9\u4e8e\u7406\u60f3\u7684\u9ed1\u4f53\uff0c<i>\u03b5<\/i> = 1\u3002<\/p>\n<h2>\u8f90\u5c04\u4ea4\u6362\u548c\u51c0\u8f90\u5c04<\/h2>\n<p>\u5f53\u4e24\u4e2a\u7269\u4f53\u4ee5\u4e0d\u540c\u7684\u6e29\u5ea6\u76f8\u4e92\u8f90\u5c04\u65f6\uff0c\u4f1a\u53d1\u751f\u8f90\u5c04\u4ea4\u6362\u3002\u51c0\u8f90\u5c04\u662f\u4e24\u4e2a\u7269\u4f53\u4e4b\u95f4\u8f90\u5c04\u80fd\u91cf\u7684\u51c0\u6d41\u91cf\u3002\u5047\u8bbe\u7269\u4f531\u548c\u7269\u4f532\u7684\u8868\u9762\u79ef\u5206\u522b\u4e3a <i>A<sub>1<\/sub><\/i> \u548c <i>A<sub>2<\/sub><\/i>\uff0c\u6e29\u5ea6\u5206\u522b\u4e3a <i>T<sub>1<\/sub><\/i> \u548c <i>T<sub>2<\/sub><\/i>\uff0c\u53d1\u5c04\u7387\u5206\u522b\u4e3a <i>\u03b5<sub>1<\/sub><\/i> \u548c <i>\u03b5<sub>2<\/sub><\/i>\uff0c\u5219\u5b83\u4eec\u4e4b\u95f4\u7684\u51c0\u8f90\u5c04\u80fd\u91cf\u6d41\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/p>\n<p>\n\\[ Q_{\\text{net}} = \\sigma \\cdot A \\cdot (T_1^4 &#8211; T_2^4) \\]\n<\/p>\n<p>\u5176\u4e2d <i>A<\/i> \u662f\u4e24\u7269\u4f53\u95f4\u7684\u6709\u6548\u8f90\u5c04\u8868\u9762\u79ef\uff0c\u51b3\u5b9a\u4e8e\u5b83\u4eec\u7684\u51e0\u4f55\u5f62\u72b6\u548c\u76f8\u5bf9\u4f4d\u7f6e\u7b49\u56e0\u7d20\u3002<\/p>\n<h2>\u5b9e\u9645\u5e94\u7528<\/h2>\n<p>\u8f90\u5c04\u4f20\u70ed\u5728\u4f17\u591a\u5de5\u7a0b\u5e94\u7528\u4e2d\u975e\u5e38\u91cd\u8981\u3002\u4f8b\u5982\uff0c\u5728\u5b87\u822a\u5de5\u7a0b\u4e2d\uff0c\u536b\u661f\u548c\u63a2\u6d4b\u5668\u9700\u8981\u5904\u7406\u901a\u8fc7\u8f90\u5c04\u4f20\u70ed\u4ece\u592a\u9633\u548c\u5730\u7403\u7b49\u5929\u4f53\u83b7\u5f97\u6216\u5931\u53bb\u7684\u70ed\u91cf\u3002\u5efa\u7b51\u5de5\u7a0b\u4e2d\uff0c\u4e5f\u9700\u8003\u8651\u901a\u8fc7\u7a97\u6237\u548c\u5916\u5899\u7684\u8f90\u5c04\u70ed\u91cf\u4f20\u9012\uff0c\u4ee5\u4f18\u5316\u5efa\u7b51\u7684\u80fd\u6548\u3002<\/p>\n<p>\u603b\u7684\u6765\u8bf4\uff0c\u7406\u89e3\u548c\u638c\u63e1\u8f90\u5c04\u4f20\u70ed\u7684\u57fa\u672c\u539f\u7406\uff0c\u5bf9\u4e8e\u4f18\u5316\u548c\u8bbe\u8ba1\u6d89\u53ca\u70ed\u7ba1\u7406\u7684\u5de5\u7a0b\u7cfb\u7edf\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7406\u89e3\u8f90\u5c04\u4f20\u70ed\uff1a\u4e86\u89e3\u70ed\u80fd\u901a\u8fc7\u7535\u78c1\u6ce2\u4f20\u9012\u7684\u57fa\u672c\u539f\u7406\uff0c\u5982\u4f55\u5728\u65e0\u63a5\u89e6\u60c5\u51b5\u4e0b\u5b9e\u73b0\u70ed\u91cf\u4f20\u8f93\uff0c\u4ee5\u53ca\u5176\u5728\u5de5\u7a0b\u5e94\u7528\u4e2d\u7684\u91cd\u8981\u6027\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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