{"id":1437,"date":"2023-02-17T11:51:12","date_gmt":"2023-02-17T03:51:12","guid":{"rendered":"https:\/\/blog.iotot.com\/?p=1437"},"modified":"2023-02-17T11:55:35","modified_gmt":"2023-02-17T03:55:35","slug":"18%e2%84%83%e7%9a%84%e6%b0%94%e4%bd%93%ef%bc%8c%e6%b5%81%e9%80%9f%e4%b8%ba10-6%e5%8d%87%e6%af%8f%e5%88%86%e9%92%9f%ef%bc%8c%e5%b0%86%e5%ae%83%e5%8a%a0%e7%83%ad%e5%88%b023%e6%91%84%e6%b0%8f%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/blog.iotot.com\/?p=1437","title":{"rendered":"18\u2103\u7684\u6c14\u4f53\uff0c\u6d41\u901f\u4e3a10.6\u5347\u6bcf\u5206\u949f\uff0c\u5c06\u5b83\u52a0\u70ed\u523023\u6444\u6c0f\u5ea6\u9700\u8981\u591a\u5927\u52a0\u70ed\u529f\u7387\uff01"},"content":{"rendered":"

\u8981\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\uff0c\u9700\u8981\u77e5\u9053\u6c14\u4f53\u7684\u8d28\u91cf\u3001\u6bd4\u70ed\u5bb9\u4ee5\u53ca\u52a0\u70ed\u6240\u9700\u7684\u65f6\u95f4\u3002\u5047\u8bbe\u6211\u4eec\u5c06\u52a0\u70ed\u65f6\u95f4\u8bbe\u4e3a1\u5206\u949f\uff0c\u5219\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\uff1a<\/p>\n

\u8ba1\u7b97\u6c14\u4f53\u7684\u8d28\u91cf\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7406\u60f3\u6c14\u4f53\u72b6\u6001\u65b9\u7a0bPV=nRT\u6765\u8ba1\u7b97\uff0c\u5176\u4e2dP\u662f\u6c14\u4f53\u7684\u538b\u5f3a\uff0cV\u662f\u6c14\u4f53\u7684\u4f53\u79ef\uff0cn\u662f\u6c14\u4f53\u7684\u7269\u8d28\u91cf\uff0cR\u662f\u6c14\u4f53\u5e38\u6570\uff0cT\u662f\u6c14\u4f53\u7684\u6e29\u5ea6\u3002\u7531\u4e8e\u6c14\u4f53\u7684\u4f53\u79ef\u548c\u538b\u5f3a\u6ca1\u6709\u7ed9\u51fa\uff0c\u6211\u4eec\u53ef\u4ee5\u5047\u8bbe\u6c14\u4f53\u7684\u4f53\u79ef\u4e3a1\u5347\uff0c\u538b\u5f3a\u4e3a\u6807\u51c6\u5927\u6c14\u538b\uff08101.3 kPa\uff09\uff0c\u5219\u6709\uff1a
\nn = PV\/RT = (101.3 kPa * 1 L) \/ (8.31 J\/(mol*K) * (18 + 273) K) \u2248 0.0402 mol<\/p>\n

\u6839\u636e\u6c14\u4f53\u7684\u7269\u8d28\u91cf\u53ef\u4ee5\u5f97\u5230\uff1a<\/p>\n

m = n * M = 0.0402 mol * 28.97 g\/mol \u2248 1.17 g<\/p>\n

\u5176\u4e2dM\u4e3a\u6c14\u4f53\u7684\u6469\u5c14\u8d28\u91cf\uff0c\u5bf9\u4e8e\u7a7a\u6c14\u6765\u8bf4\u5927\u7ea6\u4e3a28.97 g\/mol\u3002<\/p>\n

\u8ba1\u7b97\u6c14\u4f53\u7684\u6bd4\u70ed\u5bb9\u3002\u5bf9\u4e8e\u7a7a\u6c14\u6765\u8bf4\uff0c\u5176\u6bd4\u70ed\u5bb9\u4e3a\u5e38\u538b\u4e0b\u7684 Cp = 1.005 kJ\/(kg*K)\u3002<\/p>\n

\u8ba1\u7b97\u6c14\u4f53\u7684\u6e29\u5ea6\u53d8\u5316\u3002\u7531\u4e8e\u6c14\u4f53\u4ece18\u2103\u52a0\u70ed\u523023\u2103\uff0c\u6e29\u5ea6\u53d8\u5316\u4e3a \u0394T = 23\u2103 – 18\u2103 = 5\u2103 = 5 K\u3002<\/p>\n

\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\u3002\u52a0\u70ed\u529f\u7387P\u53ef\u4ee5\u7528\u4e0b\u5f0f\u8ba1\u7b97\uff1a<\/p>\n

P = m * Cp * \u0394T \/ t<\/p>\n

\u5176\u4e2dt\u4e3a\u52a0\u70ed\u7684\u65f6\u95f4\uff0c\u672c\u9898\u4e2d\u4e3a1\u5206\u949f\uff0c\u5373 t = 60 s\u3002\u5c06\u4e0a\u9762\u7684\u6570\u503c\u4ee3\u5165\u4e0a\u5f0f\u4e2d\uff0c\u53ef\u5f97\uff1a<\/p>\n

P = 1.17 g * 1.005 kJ\/(kg*K) * 5 K \/ 60 s \u2248 0.098 W<\/p>\n

\u56e0\u6b64\uff0c\u52a0\u70ed\u8fd9\u4e2a\u6c14\u4f53\u6240\u9700\u7684\u529f\u7387\u7ea6\u4e3a0.098\u74e6\u7279\uff0c\u6216\u8005\u7ea6\u4e3a98\u6beb\u74e6\u3002\uff08\u8fd9\u4e2a\u7ed3\u8bba\u5e76\u4e0d\u5bf9\uff0c\u4f3c\u4e4e\uff09<\/strong><\/p>\n

 <\/p>\n

\u7ed9\u4e86\u4f53\u79ef\u6d41\u901f\u4e3a10.6L\/min\uff0c\u91cd\u65b0\u7b97\u4e00\u4e0b\uff1f<\/strong><\/p>\n

\u597d\u7684\uff0c\u5982\u679c\u4f53\u79ef\u6d41\u901f\u4e3a10.6\u5347\/\u5206\u949f\uff0c\u90a3\u4e48\u6c14\u4f53\u7684\u8d28\u91cf\u6d41\u7387\u53ef\u4ee5\u6309\u7167\u4e0b\u5f0f\u8ba1\u7b97\uff1a<\/p>\n

m_dot = rho * Q<\/p>\n

\u5176\u4e2d\uff0crho\u662f\u6c14\u4f53\u7684\u5bc6\u5ea6\uff0cQ\u662f\u4f53\u79ef\u6d41\u91cf\u3002\u5bf9\u4e8e\u6807\u51c6\u5927\u6c14\u538b\u4e0b\u7684\u7a7a\u6c14\u6765\u8bf4\uff0c\u5176\u5bc6\u5ea6\u7ea6\u4e3a1.2 kg\/m\u00b3\u3002\u5c06\u4f53\u79ef\u6d41\u91cf\u6362\u7b97\u4e3a\u6807\u51c6\u7acb\u65b9\u7c73\u6bcf\u79d2\uff08SCCM\uff09\uff1a<\/p>\n

Q_sccm = Q \/ (101325 Pa \/ 273.15 K) * (273.15 K \/ 273.15 K) * 1000000 = Q \/ 0.41351<\/p>\n

\u5219\u6709\uff1a<\/p>\n

m_dot = 1.2 kg\/m\u00b3 * (10.6 L\/min) \/ 0.41351 \u2248 29.4 g\/s<\/p>\n

\u6309\u7167\u4e0a\u9762\u7684\u65b9\u6cd5\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\uff0c\u53ef\u5f97\uff1a<\/p>\n

\u8ba1\u7b97\u6c14\u4f53\u7684\u6bd4\u70ed\u5bb9\u3002\u5bf9\u4e8e\u7a7a\u6c14\u6765\u8bf4\uff0c\u5176\u6bd4\u70ed\u5bb9\u4e3a\u5e38\u538b\u4e0b\u7684 Cp = 1.005 kJ\/(kg*K)\u3002<\/p>\n

\u8ba1\u7b97\u6c14\u4f53\u7684\u6e29\u5ea6\u53d8\u5316\u3002\u7531\u4e8e\u6c14\u4f53\u4ece18\u2103\u52a0\u70ed\u523023\u2103\uff0c\u6e29\u5ea6\u53d8\u5316\u4e3a \u0394T = 23\u2103 – 18\u2103 = 5\u2103 = 5 K\u3002<\/p>\n

\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\u3002\u52a0\u70ed\u529f\u7387P\u53ef\u4ee5\u7528\u4e0b\u5f0f\u8ba1\u7b97\uff1a<\/p>\n

P = m_dot * Cp * \u0394T<\/p>\n

\u5c06\u4e0a\u9762\u7684\u6570\u503c\u4ee3\u5165\u4e0a\u5f0f\u4e2d\uff0c\u53ef\u5f97\uff1a<\/p>\n

P = 29.4 g\/s * 1.005 kJ\/(kg*K) * 5 K \u2248 148 W<\/p>\n

\u56e0\u6b64\uff0c\u52a0\u70ed\u8fd9\u4e2a\u6c14\u4f53\u6240\u9700\u7684\u529f\u7387\u7ea6\u4e3a148\u74e6\u7279\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8981\u8ba1\u7b97\u52a0\u70ed\u529f\u7387\uff0c\u9700\u8981\u77e5\u9053\u6c14\u4f53\u7684\u8d28\u91cf\u3001\u6bd4\u70ed\u5bb9\u4ee5\u53ca\u52a0\u70ed\u6240\u9700\u7684\u65f6\u95f4\u3002\u5047\u8bbe\u6211\u4eec\u5c06\u52a0\u70ed\u65f6\u95f4\u8bbe\u4e3a1\u5206\u949f\uff0c\u5219\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[95],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/posts\/1437"}],"collection":[{"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1437"}],"version-history":[{"count":2,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions"}],"predecessor-version":[{"id":1439,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions\/1439"}],"wp:attachment":[{"href":"https:\/\/blog.iotot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iotot.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}