{"id":744459,"date":"2024-12-22T18:11:53","date_gmt":"2024-12-22T17:11:53","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=744459"},"modified":"2024-12-22T18:11:53","modified_gmt":"2024-12-22T17:11:53","slug":"%e7%83%ad%e7%ad%89%e7%a6%bb%e5%ad%90%e4%bd%93%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%83%ad%e7%ad%89%e7%a6%bb%e5%ad%90%e4%bd%93%e4%b8%ad%e7%9a%84%e7%83%ad%e4%bc%a0%e9%80%92\/","title":{"rendered":"\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012"},"content":{"rendered":"

\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u89e3\u6790\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u80fd\u91cf\u4f20\u9012\u673a\u5236\uff0c\u63ed\u793a\u5176\u5e94\u7528\u53ca\u6539\u8fdb\u65b9\u6cd5\uff0c\u52a9\u529b\u9ad8\u6548\u80fd\u91cf\u5229\u7528\u548c\u5de5\u7a0b\u4f18\u5316\u3002<\/p>\n

\"\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\"<\/p>\n

\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012<\/h2>\n

\u70ed\u7b49\u79bb\u5b50\u4f53\u662f\u4e00\u79cd\u9ad8\u6e29\u3001\u9ad8\u80fd\u91cf\u7684\u72b6\u6001\uff0c\u5176\u4e2d\u79bb\u5b50\u3001\u7535\u5b50\u548c\u4e2d\u6027\u7c92\u5b50\u76f8\u4e92\u78b0\u649e\u5e76\u4f20\u9012\u80fd\u91cf\u3002\u70ed\u7b49\u79bb\u5b50\u4f53\u5728\u5de5\u4e1a\u548c\u79d1\u5b66\u7814\u7a76\u4e2d\u6709\u8bb8\u591a\u5e94\u7528\uff0c\u4f8b\u5982\u7b49\u79bb\u5b50\u5207\u5272\u3001\u710a\u63a5\u548c\u6750\u6599\u52a0\u5de5\u3002\u5728\u8fd9\u4e9b\u8fc7\u7a0b\u4e2d\uff0c\u70ed\u4f20\u9012\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002<\/p>\n

\u70ed\u4f20\u9012\u7684\u57fa\u672c\u673a\u5236<\/h2>\n

\u5728\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\uff0c\u70ed\u4f20\u9012\u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u673a\u5236\u53d1\u751f\uff1a<\/p>\n

<\/p>\n

  • \u4f20\u5bfc<\/li>\n
  • \u5bf9\u6d41<\/li>\n
  • \u8f90\u5c04<\/li>\n

    <\/u1><\/p>\n

    \u4f20\u5bfc<\/h3>\n

    \u4f20\u5bfc\u662f\u6307\u70ed\u80fd\u901a\u8fc7\u7269\u8d28\u5185\u90e8\u7c92\u5b50\u95f4\u7684\u78b0\u649e\u548c\u632f\u52a8\u4ece\u9ad8\u6e29\u533a\u57df\u4f20\u9012\u5230\u4f4e\u6e29\u533a\u57df\u3002\u5728\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\uff0c\u7535\u5b50\u7684\u9ad8\u901f\u8fd0\u52a8\u548c\u9891\u7e41\u78b0\u649e\u4f7f\u5f97\u4f20\u5bfc\u6210\u4e3a\u4e3b\u8981\u7684\u70ed\u4f20\u9012\u65b9\u5f0f\u4e4b\u4e00\u3002\u4f20\u5bfc\u70ed\u91cf q<\/i> \u53ef\u4ee5\u7528\u5085\u91cc\u53f6\u5b9a\u5f8b\u8868\u793a\uff1a<\/p>\n

    q = -k \\cdot \\frac{dT}{dx}<\/i><\/p>\n

    \u5176\u4e2d\uff0ck<\/i> \u662f\u70ed\u5bfc\u7387\uff0c \\frac{dT}{dx} <\/i> \u662f\u6e29\u5ea6\u68af\u5ea6\u3002<\/p>\n

    \u5bf9\u6d41<\/h3>\n

    \u5bf9\u6d41\u662f\u6307\u7531\u4e8e\u6db2\u4f53\u6216\u6c14\u4f53\u7684\u5b8f\u89c2\u8fd0\u52a8\u800c\u5bfc\u81f4\u7684\u70ed\u91cf\u4f20\u9012\u3002\u5728\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\uff0c\u5bf9\u6d41\u901a\u5e38\u7531\u660e\u706b\u4ee5\u53ca\u7b49\u79bb\u5b50\u6d41\u7684\u9ad8\u901f\u6d41\u52a8\u5f15\u8d77\u3002\u5bf9\u6d41\u70ed\u4f20\u9012\u53ef\u4ee5\u7528\u725b\u987f\u51b7\u5374\u5b9a\u5f8b\u8868\u793a\uff1a<\/p>\n

    Q = h \\cdot A \\cdot (T_{hot} – T_{cool})<\/i><\/p>\n

    \u5176\u4e2d\uff0ch<\/i> \u662f\u5bf9\u6d41\u6362\u70ed\u7cfb\u6570\uff0cA<\/i> \u662f\u6362\u70ed\u9762\u79ef\uff0cT_{hot}<\/i> \u548c T_{cool}<\/i> \u5206\u522b\u662f\u70ed\u6d41\u4f53\u548c\u51b7\u6d41\u4f53\u7684\u6e29\u5ea6\u3002<\/p>\n

    \u8f90\u5c04<\/h3>\n

    \u8f90\u5c04\u662f\u901a\u8fc7\u7535\u78c1\u6ce2\uff08\u901a\u5e38\u662f\u7ea2\u5916\u7ebf\uff09\u4f20\u9012\u70ed\u91cf\u7684\u65b9\u5f0f\u3002\u5728\u9ad8\u6e29\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\uff0c\u8f90\u5c04\u70ed\u4f20\u9012\u5360\u6709\u5f88\u5927\u6bd4\u91cd\u3002\u8f90\u5c04\u70ed\u91cf\u53ef\u4ee5\u7528\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5b9a\u5f8b\u63cf\u8ff0\uff1a<\/p>\n

    Q = \\epsilon \\cdot \\sigma \\cdot A \\cdot (T^4_{hot} – T^4_{cool})<\/i><\/p>\n

    \u5176\u4e2d\uff0c\\epsilon<\/i> \u662f\u6750\u6599\u7684\u53d1\u5c04\u7387\uff0c\\sigma<\/i> \u662f\u65af\u7279\u85e9-\u73bb\u5c14\u5179\u66fc\u5e38\u6570\uff0cA<\/i> \u662f\u8868\u9762\u79ef\uff0cT_{hot}<\/i> \u548c T_{cool}<\/i> \u5206\u522b\u662f\u8f90\u5c04\u4f53\u548c\u73af\u5883\u7684\u7edd\u5bf9\u6e29\u5ea6\u3002<\/p>\n

    \u5e94\u7528<\/h2>\n

    \u5728\u5de5\u4e1a\u5e94\u7528\u4e2d\uff0c\u70ed\u7b49\u79bb\u5b50\u4f53\u7528\u4e8e\u5207\u5272\u548c\u710a\u63a5\u91d1\u5c5e\u6750\u6599\u3002\u901a\u8fc7\u63a7\u5236\u7b49\u79bb\u5b50\u4f53\u6e29\u5ea6\u548c\u6d41\u52a8\uff0c\u53ef\u4ee5\u7cbe\u786e\u5730\u5b9e\u73b0\u6750\u6599\u52a0\u5de5\u3002\u6b64\u5916\uff0c\u7814\u7a76\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\u673a\u5236\u6709\u52a9\u4e8e\u5f00\u53d1\u66f4\u52a0\u9ad8\u6548\u548c\u7cbe\u786e\u7684\u5de5\u827a\u6280\u672f\u3002<\/p>\n

    \u603b\u4f53\u6765\u8bf4\uff0c\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\u662f\u4e00\u4e2a\u590d\u6742\u4f46\u6781\u5177\u5e94\u7528\u524d\u666f\u7684\u7814\u7a76\u9886\u57df\uff0c\u5b83\u4e0d\u4ec5\u5bf9\u5de5\u4e1a\u751f\u4ea7\u6709\u7740\u91cd\u8981\u5f71\u54cd\uff0c\u800c\u4e14\u5728\u79d1\u5b66\u7814\u7a76\u4e2d\u4e5f\u63d0\u4f9b\u4e86\u8bb8\u591a\u5b9d\u8d35\u7684\u6570\u636e\u548c\u7406\u8bba\u4f9d\u636e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u89e3\u6790\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u80fd\u91cf\u4f20\u9012\u673a\u5236\uff0c\u63ed\u793a\u5176\u5e94\u7528\u53ca\u6539\u8fdb\u65b9\u6cd5\uff0c\u52a9\u529b\u9ad8\u6548\u80fd\u91cf\u5229\u7528\u548c\u5de5\u7a0b\u4f18\u5316\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":"\n\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012<\/title>\n<meta name=\"description\" content=\"\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u70ed\u4f20\u9012\uff1a\u89e3\u6790\u70ed\u7b49\u79bb\u5b50\u4f53\u4e2d\u7684\u80fd\u91cf\u4f20\u9012\u673a\u5236\uff0c\u63ed\u793a\u5176\u5e94\u7528\u53ca\u6539\u8fdb\u65b9\u6cd5\uff0c\u52a9\u529b\u9ad8\u6548\u80fd\u91cf\u5229\u7528\u548c\u5de5\u7a0b\u4f18\u5316\u3002\" \/>\n<meta name=\"robots\" content=\"index, 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