{"id":742502,"date":"2024-10-13T01:52:39","date_gmt":"2024-10-13T00:52:39","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=742502"},"modified":"2024-10-13T01:52:39","modified_gmt":"2024-10-13T00:52:39","slug":"%e5%be%ae%e5%8f%8d%e5%ba%94%e5%99%a8%e7%9a%84%e7%83%ad%e5%8a%9b%e5%ad%a6%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%be%ae%e5%8f%8d%e5%ba%94%e5%99%a8%e7%9a%84%e7%83%ad%e5%8a%9b%e5%ad%a6%e5%88%86%e6%9e%90\/","title":{"rendered":"\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790"},"content":{"rendered":"<p class=\"sidekick\">\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790\uff1a\u4ecb\u7ecd\u5fae\u53cd\u5e94\u5668\u7684\u57fa\u672c\u539f\u7406\u53ca\u70ed\u529b\u5b66\u6027\u80fd\uff0c\u89e3\u91ca\u5176\u5728\u5404\u884c\u4e1a\u4e2d\u7684\u5e94\u7528\u548c\u4f18\u52bf\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790.png\" alt=\"\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790<\/h2>\n<p>\u5fae\u53cd\u5e94\u5668\u662f\u4e00\u79cd\u5c0f\u578b\u53cd\u5e94\u5e73\u53f0\uff0c\u5177\u6709\u9ad8\u8868\u9762\u79ef\u4f53\u79ef\u6bd4\uff0c\u9ad8\u6548\u7684\u70ed\u4f20\u5bfc\u4ee5\u53ca\u5feb\u901f\u7684\u5316\u5b66\u53cd\u5e94\u901f\u7387\u3002\u5728\u5de5\u4e1a\u548c\u79d1\u7814\u4e2d\uff0c\u5fae\u53cd\u5e94\u5668\u56e0\u5176\u5feb\u901f\u548c\u9ad8\u6548\u7684\u7279\u6027\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790\uff0c\u5305\u62ec\u5176\u80fd\u91cf\u5e73\u8861\u548c\u70ed\u6548\u7387\u3002<\/p>\n<h2>\u80fd\u91cf\u5e73\u8861<\/h2>\n<p>\u80fd\u91cf\u5e73\u8861\u662f\u70ed\u529b\u5b66\u5206\u6790\u7684\u57fa\u7840\uff0c\u5bf9\u5fae\u53cd\u5e94\u5668\u800c\u8a00\u4e5f\u4e0d\u4f8b\u5916\u3002\u5fae\u53cd\u5e94\u5668\u4e2d\u80fd\u91cf\u5e73\u8861\u7684\u57fa\u672c\u65b9\u7a0b\u4e3a\uff1a<\/p>\n<p>\nQ<sub>in<\/sub> + W = Q<sub>out<\/sub> + \u0394U\n<\/p>\n<ul>\n<li>Q<sub>in<\/sub>: \u7cfb\u7edf\u8f93\u5165\u7684\u70ed\u91cf<\/li>\n<li>W: \u7cfb\u7edf\u505a\u7684\u529f<\/li>\n<li>Q<sub>out<\/sub>: \u7cfb\u7edf\u8f93\u51fa\u7684\u70ed\u91cf<\/li>\n<li>\u0394U: \u7cfb\u7edf\u5185\u80fd\u7684\u53d8\u5316<\/li>\n<\/ul>\n<p>\u5728\u5c01\u95ed\u7cfb\u7edf\u4e2d\uff0c\u7531\u4e8e\u4e0d\u8fdb\u884c\u529f\u7684\u8f6c\u6362\uff0cW \u4e3a\u96f6\uff0c\u80fd\u91cf\u5e73\u8861\u65b9\u7a0b\u7b80\u5316\u4e3a\uff1a<\/p>\n<p> Q<sub>in<\/sub> = Q<sub>out<\/sub> + \u0394U <\/p>\n<p>\u5bf9\u4e8e\u5fae\u53cd\u5e94\u5668\u7684\u64cd\u4f5c\uff0c\u591a\u6570\u60c5\u51b5\u4e0b\u8f93\u5165\u7684\u70ed\u91cf\u5bfc\u81f4\u53cd\u5e94\u81ea\u53d1\u6216\u7ef4\u6301\u3002\u56e0\u6b64\uff0c\u7406\u89e3\u548c\u4f18\u5316\u70ed\u91cf\u6d41\u52a8\u5bf9\u53cd\u5e94\u5668\u7684\u9ad8\u6548\u8fd0\u884c\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h2>\u4f20\u70ed\u5206\u6790<\/h2>\n<p>\u5fae\u53cd\u5e94\u5668\u4e2d\u7684\u4f20\u70ed\u5728\u5176\u8bbe\u8ba1\u548c\u8fd0\u884c\u4e2d\u5360\u636e\u91cd\u8981\u5730\u4f4d\u3002\u4f20\u70ed\u8fc7\u7a0b\u5305\u62ec\u5bfc\u70ed\u3001\u5bf9\u6d41\u548c\u8f90\u5c04\u4e09\u79cd\u57fa\u672c\u5f62\u5f0f\u3002\u5728\u5fae\u53cd\u5e94\u5668\u4e2d\uff0c\u7531\u4e8e\u5176\u5c0f\u5c3a\u5bf8\uff0c\u5bfc\u70ed\u548c\u5bf9\u6d41\u8d77\u4e3b\u8981\u4f5c\u7528\u3002<\/p>\n<ul>\n<li>\u5bfc\u70ed\uff1a\u6839\u636e\u5085\u91cc\u53f6\u5b9a\u5f8b\uff0c\u5bfc\u70ed\u901f\u7387\u53ef\u4ee5\u8868\u793a\u4e3a\uff1a<\/li>\n<\/ul>\n<p> Q = -kA\\frac{dT}{dx} <\/p>\n<ul>\n<li>k: \u5bfc\u70ed\u7cfb\u6570<\/li>\n<li>A: \u4f20\u70ed\u9762\u79ef<\/li>\n<li>\\dfrac{dT}{dx}: \u6e29\u5ea6\u68af\u5ea6<\/li>\n<\/ul>\n<p>\u5c0f\u5c3a\u5bf8\u7684\u5fae\u53cd\u5e94\u5668\u5f62\u6210\u9ad8\u6e29\u5ea6\u68af\u5ea6\uff0c\u4ece\u800c\u8fc5\u901f\u4f20\u9012\u70ed\u91cf\u3002<\/p>\n<ul>\n<li>\u5bf9\u6d41\uff1a\u5bf9\u6d41\u4f20\u70ed\u53d7\u725b\u987f\u51b7\u5374\u65b9\u7a0b\u63a7\u5236\uff1a<\/li>\n<\/ul>\n<p> Q = hA(T_s &#8211; T_\u221e) <\/p>\n<ul>\n<li>h: \u5bf9\u6d41\u6362\u70ed\u7cfb\u6570<\/li>\n<li>T_s: \u7269\u4f53\u8868\u9762\u6e29\u5ea6<\/li>\n<li>T_\u221e: \u5468\u56f4\u6d41\u4f53\u6e29\u5ea6<\/li>\n<\/ul>\n<p>\u5fae\u53cd\u5e94\u5668\u7684\u9ad8\u8868\u9762\u79ef\u4f53\u79ef\u6bd4\u4f7f\u5f97\u5bf9\u6d41\u4f20\u70ed\u9ad8\u6548\uff0c\u5728\u9ad8\u6e29\u68af\u5ea6\u4e0b\u5b9e\u73b0\u5feb\u901f\u5747\u5300\u7684\u70ed\u91cf\u5206\u5e03\u3002<\/p>\n<h2>\u70ed\u6548\u7387<\/h2>\n<p>\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u6548\u7387\u4f53\u73b0\u5728\u5176\u5feb\u901f\u53cd\u5e94\u548c\u9ad8\u4ea7\u7269\u6536\u7387\u4e0a\u3002\u70ed\u6548\u7387 (\u03b7) \u7684\u5b9a\u4e49\u4e3a\uff1a<\/p>\n<p> \u03b7 = \\frac{Q_useful}{Q_in} <\/p>\n<ul>\n<li>Q_useful: \u6709\u6548\u5229\u7528\u7684\u70ed\u91cf<\/li>\n<li>Q_in: \u8f93\u5165\u7684\u603b\u70ed\u91cf<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4f18\u5316\u5fae\u53cd\u5e94\u5668\u7684\u8bbe\u8ba1\uff0c\u5982\u6750\u6599\u9009\u62e9\u548c\u7ed3\u6784\u8c03\u6574\uff0c\u53ef\u4ee5\u6700\u5927\u5316Q_useful\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u70ed\u6548\u7387\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u5fae\u53cd\u5e94\u5668\u7684\u6548\u80fd\uff0c\u8fd8\u51cf\u5c11\u4e86\u80fd\u91cf\u6d6a\u8d39\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5fae\u53cd\u5e94\u5668\u5728\u70ed\u529b\u5b66\u4e0a\u8868\u73b0\u51fa\u6781\u9ad8\u7684\u6548\u7387\uff0c\u8fd9\u662f\u7531\u4e8e\u5176\u72ec\u7279\u7684\u7ed3\u6784\u548c\u5c0f\u4f53\u79ef\u5e26\u6765\u7684\u5feb\u901f\u70ed\u4f20\u5bfc\u548c\u4f20\u70ed\u3002\u672c\u7bc7\u6587\u7ae0\u901a\u8fc7\u80fd\u91cf\u5e73\u8861\u3001\u4f20\u70ed\u5206\u6790\u548c\u70ed\u6548\u7387\u4e09\u4e2a\u65b9\u9762\uff0c\u4e3a\u8bfb\u8005\u63d0\u4f9b\u4e86\u5bf9\u5fae\u53cd\u5e94\u5668\u70ed\u529b\u5b66\u7279\u6027\u7684\u57fa\u672c\u7406\u89e3\u3002\u672a\u6765\uff0c\u968f\u7740\u6750\u6599\u79d1\u5b66\u548c\u5de5\u7a0b\u6280\u672f\u7684\u53d1\u5c55\uff0c\u5fae\u53cd\u5e94\u5668\u6709\u671b\u5728\u66f4\u591a\u9886\u57df\u4e2d\u5f97\u5230\u5e94\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5fae\u53cd\u5e94\u5668\u7684\u70ed\u529b\u5b66\u5206\u6790\uff1a\u4ecb\u7ecd\u5fae\u53cd\u5e94\u5668\u7684\u57fa\u672c\u539f\u7406\u53ca\u70ed\u529b\u5b66\u6027\u80fd\uff0c\u89e3\u91ca\u5176\u5728\u5404\u884c\u4e1a\u4e2d\u7684\u5e94\u7528\u548c\u4f18\u52bf\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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