{"id":727924,"date":"2024-08-13T12:32:31","date_gmt":"2024-08-13T11:32:31","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=727924"},"modified":"2024-08-13T12:32:31","modified_gmt":"2024-08-13T11:32:31","slug":"%e6%a0%b8%e5%8f%8d%e5%ba%94%e5%a0%86%e4%b8%ad%e7%9a%84%e4%bc%a0%e7%83%ad%e5%a2%9e%e5%bc%ba%e6%8a%80%e6%9c%af","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e6%a0%b8%e5%8f%8d%e5%ba%94%e5%a0%86%e4%b8%ad%e7%9a%84%e4%bc%a0%e7%83%ad%e5%a2%9e%e5%bc%ba%e6%8a%80%e6%9c%af\/","title":{"rendered":"\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f"},"content":{"rendered":"<p class=\"sidekick\">\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f\uff1a\u7814\u7a76\u5982\u4f55\u901a\u8fc7\u5148\u8fdb\u6750\u6599\u548c\u8bbe\u8ba1\u6539\u5584\u4f20\u70ed\u6548\u7387\uff0c\u63d0\u5347\u53cd\u5e94\u5806\u6027\u80fd\u548c\u5b89\u5168\u6027\uff0c\u52a9\u529b\u6e05\u6d01\u80fd\u6e90\u53d1\u5c55\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f.png\" alt=\"\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u662f\u4e00\u79cd\u5229\u7528\u6838\u88c2\u53d8\u6216\u805a\u53d8\u53cd\u5e94\u4ea7\u751f\u80fd\u91cf\u7684\u8bbe\u5907\u3002\u5728\u53cd\u5e94\u5806\u4e2d\uff0c\u901a\u8fc7\u9ad8\u6548\u7684\u4f20\u70ed\u6280\u672f\u5c06\u6838\u53cd\u5e94\u4ea7\u751f\u7684\u70ed\u91cf\u6709\u6548\u5730\u4f20\u8f93\u51fa\u53bb\uff0c\u5bf9\u53cd\u5e94\u5806\u7684\u5b89\u5168\u548c\u6548\u7387\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n<h2>\u4f20\u70ed\u589e\u5f3a\u6280\u672f\u7684\u5fc5\u8981\u6027<\/h2>\n<p>\u5728\u6838\u53cd\u5e94\u5806\u4e2d\uff0c\u4f20\u70ed\u7684\u6548\u7387\u76f4\u63a5\u5f71\u54cd\u53cd\u5e94\u5806\u7684\u5de5\u4f5c\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002\u63d0\u9ad8\u4f20\u70ed\u6548\u7387\u80fd\u591f\uff1a<\/p>\n<p><u1><\/p>\n<li>\u589e\u52a0\u53cd\u5e94\u5806\u7684\u529f\u7387\u8f93\u51fa<\/li>\n<li>\u964d\u4f4e\u51b7\u5374\u5242\u7684\u6e29\u5ea6\uff0c\u4ece\u800c\u63d0\u9ad8\u5176\u5de5\u4f5c\u5bff\u547d<\/li>\n<li>\u964d\u4f4e\u5b89\u5168\u98ce\u9669\uff0c\u9632\u6b62\u53cd\u5e94\u5806\u6838\u5fc3\u8fc7\u70ed<\/li>\n<p><\/u1><\/p>\n<h2>\u5e38\u7528\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u4e2d\u5e38\u7528\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f\u5305\u62ec\u4ee5\u4e0b\u51e0\u79cd\uff1a<\/p>\n<h3>\u808b\u7247\u548c\u6270\u6d41\u5668<\/h3>\n<p>\u808b\u7247\u548c\u6270\u6d41\u5668\u901a\u8fc7\u6539\u53d8\u6d41\u4f53\u6d41\u52a8\u8def\u5f84\u548c\u589e\u52a0\u8868\u9762\u79ef\u6765\u589e\u5f3a\u4f20\u70ed\u3002\u808b\u7247\u5e38\u7528\u4e8e\u7ba1\u9053\u8868\u9762\uff0c\u800c\u6270\u6d41\u5668\u5219\u901a\u8fc7\u5728\u6d41\u4f53\u4e2d\u8bbe\u7f6e\u969c\u788d\u7269\uff0c\u4f7f\u6d41\u4f53\u4ea7\u751f\u6e4d\u6d41\uff0c\u4ece\u800c\u63d0\u9ad8\u4f20\u70ed\u6548\u7387\u3002<\/p>\n<h3>\u5fae\u901a\u9053\u7ed3\u6784<\/h3>\n<p>\u5fae\u901a\u9053\u7ed3\u6784\u662f\u4e00\u79cd\u5fae\u7c73\u7ea7\u5c3a\u5ea6\u7684\u901a\u9053\u7cfb\u7edf\uff0c\u80fd\u6781\u5927\u5730\u589e\u52a0\u4f20\u70ed\u8868\u9762\u79ef\uff0c\u540c\u65f6\u5f62\u6210\u529f\u80fd\u6027\u7684\u6d41\u4f53\u6d41\u52a8\u8def\u5f84\uff0c\u4ece\u800c\u589e\u5f3a\u4f20\u70ed\u6548\u7387\u3002<\/p>\n<h3>\u7eb3\u7c73\u6d41\u4f53<\/h3>\n<p>\u7eb3\u7c73\u6d41\u4f53\u662f\u5728\u4f20\u7edf\u51b7\u5374\u6db2\u4e2d\u63ba\u5165\u7eb3\u7c73\u7c92\u5b50\uff08\u901a\u5e38\u662f\u91d1\u5c5e\u6216\u91d1\u5c5e\u6c27\u5316\u7269\uff09\u4ee5\u63d0\u9ad8\u5176\u4f20\u70ed\u6027\u80fd\u3002\u8fd9\u4e9b\u7eb3\u7c73\u7c92\u5b50\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u6d41\u4f53\u7684\u5bfc\u70ed\u6027\uff0c\u4ece\u800c\u589e\u5f3a\u4f20\u70ed\u6548\u7387\u3002<\/p>\n<h2>\u5e38\u89c1\u4f20\u70ed\u65b9\u7a0b<\/h2>\n<p>\u4f20\u70ed\u8fc7\u7a0b\u4e2d\u7684\u57fa\u672c\u65b9\u7a0b\u5305\u542b\u5bfc\u70ed\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u4f20\u70ed\u7b49\u591a\u79cd\u5f62\u5f0f\u3002<\/p>\n<h3>\u5bfc\u70ed<\/h3>\n<p>\u5085\u7acb\u53f6\u5bfc\u70ed\u5b9a\u5f8b\uff1a<\/p>\n<p>$$ q = -k \\frac{dT}{dx} $$<\/p>\n<p>\u5176\u4e2d\uff0cq \u8868\u793a\u4f20\u5bfc\u70ed\u6d41\u5bc6\u5ea6\uff0ck \u4e3a\u5bfc\u70ed\u7cfb\u6570\uff0cdT\/dx \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n<h3>\u5bf9\u6d41<\/h3>\n<p>\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\uff1a<\/p>\n<p>$$ q = hA(T_s &#8211; T_{\\infty}) $$<\/p>\n<p>\u5176\u4e2d\uff0cq \u4e3a\u5bf9\u6d41\u70ed\u6d41\uff0ch \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0cA \u4e3a\u8868\u9762\u79ef\uff0cT_s \u4e3a\u8868\u9762\u6e29\u5ea6\uff0cT_\u221e \u662f\u6d41\u4f53\u7684\u73af\u5883\u6e29\u5ea6\u3002<\/p>\n<h3>\u8f90\u5c04<\/h3>\n<p>\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\uff1a<\/p>\n<p>$$ Q = \\sigma A (T^4_s &#8211; T^4_{\\infty}) $$<\/p>\n<p>\u5176\u4e2d\uff0cQ \u4e3a\u8f90\u5c04\u70ed\u6d41\uff0c\u03c3 \u662f\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0cA \u4e3a\u8868\u9762\u79ef\uff0cT_s \u548c T_\u221e \u5206\u522b\u662f\u8868\u9762\u6e29\u5ea6\u548c\u73af\u5883\u6e29\u5ea6\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u6838\u53cd\u5e94\u5806\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f\u5bf9\u4e8e\u786e\u4fdd\u53cd\u5e94\u5806\u8fd0\u884c\u7684\u9ad8\u6548\u548c\u5b89\u5168\u81f3\u5173\u91cd\u8981\u3002\u901a\u8fc7\u4f7f\u7528\u808b\u7247\u3001\u6270\u6d41\u5668\u3001\u5fae\u901a\u9053\u7ed3\u6784\u548c\u7eb3\u7c73\u6d41\u4f53\u7b49\u6280\u672f\uff0c\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u4f20\u70ed\u6548\u7387\u3002\u638c\u63e1\u548c\u5e94\u7528\u8fd9\u4e9b\u6280\u672f\u6709\u52a9\u4e8e\u63a8\u52a8\u6838\u5de5\u7a0b\u7684\u53d1\u5c55\uff0c\u63d0\u5347\u80fd\u6e90\u5229\u7528\u7684\u6548\u7387\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6838\u53cd\u5e94\u5806\u4e2d\u7684\u4f20\u70ed\u589e\u5f3a\u6280\u672f\uff1a\u7814\u7a76\u5982\u4f55\u901a\u8fc7\u5148\u8fdb\u6750\u6599\u548c\u8bbe\u8ba1\u6539\u5584\u4f20\u70ed\u6548\u7387\uff0c\u63d0\u5347\u53cd\u5e94\u5806\u6027\u80fd\u548c\u5b89\u5168\u6027\uff0c\u52a9\u529b\u6e05\u6d01\u80fd\u6e90\u53d1\u5c55\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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