{"id":728975,"date":"2024-12-26T01:40:11","date_gmt":"2024-12-26T00:40:11","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=728975"},"modified":"2024-12-26T01:40:11","modified_gmt":"2024-12-26T00:40:11","slug":"%e5%a4%8d%e5%90%88%e7%bb%9d%e7%bc%98%e6%9d%90%e6%96%99%e7%9a%84%e7%83%ad%e6%80%a7%e8%83%bd%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/zh-hans\/%e5%a4%8d%e5%90%88%e7%bb%9d%e7%bc%98%e6%9d%90%e6%96%99%e7%9a%84%e7%83%ad%e6%80%a7%e8%83%bd%e5%88%86%e6%9e%90\/","title":{"rendered":"\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790"},"content":{"rendered":"<p class=\"sidekick\">\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790\uff0c\u6df1\u5165\u63a2\u8ba8\u5176\u5bfc\u70ed\u7cfb\u6570\u548c\u70ed\u7a33\u5b9a\u6027\u7b49\u5173\u952e\u53c2\u6570\uff0c\u63ed\u793a\u5176\u5728\u5de5\u4e1a\u70ed\u7ba1\u7406\u4e2d\u7684\u5e94\u7528\u548c\u4f18\u52bf\u3002<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790.png\" alt=\"\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790<\/h2>\n<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u5728\u73b0\u4ee3\u5de5\u4e1a\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\u3002\u5b83\u4eec\u5e38\u7528\u4e8e\u7535\u529b\u7cfb\u7edf\u3001\u7535\u5b50\u8bbe\u5907\u548c\u5efa\u7b51\u4e2d\uff0c\u76ee\u7684\u662f\u51cf\u5c11\u70ed\u635f\u5931\u548c\u63d0\u9ad8\u80fd\u6e90\u6548\u7387\u3002\u672c\u7bc7\u6587\u7ae0\u5c06\u63a2\u8ba8\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\uff0c\u5e76\u5206\u6790\u5176\u5728\u4e0d\u540c\u5e94\u7528\u4e2d\u7684\u8868\u73b0\u3002<\/p>\n<h2>\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u7ec4\u6210<\/h2>\n<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u901a\u5e38\u7531\u591a\u79cd\u6750\u6599\u7ec4\u5408\u800c\u6210\uff0c\u5176\u76ee\u7684\u5728\u4e8e\u5229\u7528\u4e0d\u540c\u6750\u6599\u7684\u4f18\u5f02\u7279\u6027\u589e\u5f3a\u6574\u4f53\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u590d\u5408\u7edd\u7f18\u6750\u6599\u53ca\u5176\u6210\u5206\uff1a<\/p>\n<p><u1><\/p>\n<li>\u73bb\u7483\u7ea4\u7ef4\u4e0e\u6811\u8102\u590d\u5408\u6750\u6599<\/li>\n<li>\u9676\u74f7\u4e0e\u805a\u5408\u7269\u590d\u5408\u6750\u6599<\/li>\n<li>\u6728\u8d28\u7ea4\u7ef4\u4e0e\u77f3\u818f\u590d\u5408\u6750\u6599<\/li>\n<p><\/u1><\/p>\n<h2>\u70ed\u4f20\u5bfc\u6027\u80fd<\/h2>\n<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u662f\u5176\u70ed\u4f20\u5bfc\u6027\u80fd\u3002\u70ed\u4f20\u5bfc\u7cfb\u6570\uff08k\uff09\u8868\u793a\u6750\u6599\u4f20\u5bfc\u70ed\u91cf\u7684\u80fd\u529b\u3002\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p>Q = \\frac{k \\cdot A \\cdot \\Delta T}{d}<\/p>\n<p>\u5176\u4e2d\uff0c<\/p>\n<ul>\n<li>Q \u662f\u70ed\u4f20\u5bfc\u91cf\uff08\u74e6\u7279\uff0cW\uff09<\/li>\n<li>k \u662f\u70ed\u4f20\u5bfc\u7cfb\u6570\uff08\u74e6\u7279\/\u7c73\u00b7\u5f00\u5c14\u6587\uff0cW\/m\u00b7K\uff09<\/li>\n<li>A \u662f\u6750\u6599\u7684\u9762\u79ef\uff08\u5e73\u65b9\u7c73\uff0cm<sup>2<\/sup>\uff09<\/li>\n<li>\\Delta T \u662f\u6e29\u5ea6\u5dee\uff08\u5f00\u5c14\u6587\uff0cK \u6216 \u6444\u6c0f\u5ea6\uff0c\u2103\uff09<\/li>\n<li>d \u662f\u6750\u6599\u7684\u539a\u5ea6\uff08\u7c73\uff0cm\uff09<\/li>\n<\/ul>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u70ed\u4f20\u5bfc\u7cfb\u6570\u8d8a\u4f4e\uff0c\u7edd\u7f18\u6548\u679c\u8d8a\u597d\u3002<\/p>\n<h2>\u70ed\u5bb9\u548c\u6bd4\u70ed\u5bb9<\/h2>\n<p>\u70ed\u5bb9\uff08C\uff09\u662f\u6750\u6599\u5438\u6536\u70ed\u91cf\u7684\u80fd\u529b\uff0c\u800c\u6bd4\u70ed\u5bb9\uff08c_p\uff09\u662f\u5355\u4f4d\u8d28\u91cf\u6750\u6599\u5438\u6536\u70ed\u91cf\u7684\u80fd\u529b\u3002\u516c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p>C = m \\cdot c_p<\/p>\n<p>\u5176\u4e2d\uff0c<\/p>\n<ul>\n<li>C \u662f\u70ed\u5bb9\uff08\u7126\u8033\uff0cJ\uff09<\/li>\n<li>m \u662f\u8d28\u91cf\uff08\u5343\u514b\uff0ckg\uff09<\/li>\n<li>c_p \u662f\u6bd4\u70ed\u5bb9\uff08\u7126\u8033\/\u5343\u514b\u00b7\u5f00\u5c14\u6587\uff0cJ\/kg\u00b7K\uff09<\/li>\n<\/ul>\n<p>\u6bd4\u70ed\u5bb9\u8f83\u5927\u7684\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u65f6\u66f4\u80fd\u7a33\u5b9a\u5176\u5185\u90e8\u6e29\u5ea6\u3002<\/p>\n<h2>\u70ed\u81a8\u80c0\u6027\u80fd<\/h2>\n<p>\u70ed\u81a8\u80c0\u7cfb\u6570\u662f\u6750\u6599\u54cd\u5e94\u6e29\u5ea6\u53d8\u5316\u800c\u53d1\u751f\u5c3a\u5bf8\u53d8\u5316\u7684\u5ea6\u91cf\u3002\u516c\u5f0f\u4e3a\uff1a<\/p>\n<p>\\Delta L = L_0 \\cdot \\alpha \\cdot \\Delta T<\/p>\n<p>\u5176\u4e2d\uff0c<\/p>\n<ul>\n<li>\\Delta L \u662f\u957f\u5ea6\u53d8\u5316\uff08\u7c73\uff0cm\uff09<\/li>\n<li>L_0 \u662f\u521d\u59cb\u957f\u5ea6\uff08\u7c73\uff0cm\uff09<\/li>\n<li>\\alpha \u662f\u70ed\u81a8\u80c0\u7cfb\u6570\uff081\/\u5f00\u5c14\u6587\uff0cK<sup>-1<\/sup>\uff09<\/li>\n<li>\\Delta T \u662f\u6e29\u5ea6\u53d8\u5316\uff08\u5f00\u5c14\u6587\uff0cK \u6216 \u6444\u6c0f\u5ea6\uff0c\u2103\uff09<\/li>\n<\/ul>\n<p>\u4f4e\u70ed\u81a8\u80c0\u7cfb\u6570\u7684\u6750\u6599\u5728\u6e29\u5ea6\u53d8\u5316\u65f6\u4f1a\u6709\u66f4\u597d\u7684\u5c3a\u5bf8\u7a33\u5b9a\u6027\u3002<\/p>\n<h2>\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u5e94\u7528<\/h2>\n<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u5e7f\u6cdb\u5e94\u7528\u4e8e\u4ee5\u4e0b\u9886\u57df\uff1a<\/p>\n<ul>\n<li>\u7535\u529b\u7cfb\u7edf\u4e2d\u7684\u7535\u7f06\u7edd\u7f18<\/li>\n<li>\u5efa\u7b51\u4e2d\u7684\u9694\u70ed\u5c42<\/li>\n<li>\u822a\u5929\u5de5\u4e1a\u4e2d\u7684\u70ed\u9632\u62a4\u7f69<\/li>\n<li>\u7535\u5b50\u8bbe\u5907\u4e2d\u7684\u70ed\u7ba1\u7406<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u5408\u7406\u9009\u62e9\u548c\u7ec4\u5408\u6750\u6599\uff0c\u53ef\u4ee5\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u663e\u8457\u63d0\u5347\u7edd\u7f18\u6548\u679c\u548c\u80fd\u6e90\u5229\u7528\u6548\u7387\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u5728\u70ed\u6027\u80fd\u65b9\u9762\u7684\u4f18\u5f02\u8868\u73b0\uff0c\u4f7f\u5176\u5728\u5404\u884c\u5404\u4e1a\u4e2d\u83b7\u5f97\u4e86\u5e7f\u6cdb\u5e94\u7528\u3002\u901a\u8fc7\u6df1\u5165\u4e86\u89e3\u548c\u7814\u7a76\u8fd9\u4e9b\u6750\u6599\u7684\u70ed\u6027\u80fd\uff0c\u53ef\u4ee5\u4e3a\u5b9e\u9645\u5e94\u7528\u63d0\u4f9b\u66f4\u597d\u7684\u9009\u62e9\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u6574\u4f53\u6548\u7387\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u590d\u5408\u7edd\u7f18\u6750\u6599\u7684\u70ed\u6027\u80fd\u5206\u6790\uff0c\u6df1\u5165\u63a2\u8ba8\u5176\u5bfc\u70ed\u7cfb\u6570\u548c\u70ed\u7a33\u5b9a\u6027\u7b49\u5173\u952e\u53c2\u6570\uff0c\u63ed\u793a\u5176\u5728\u5de5\u4e1a\u70ed\u7ba1\u7406\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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