{"id":693,"date":"2023-06-09T17:15:21","date_gmt":"2023-06-09T08:15:21","guid":{"rendered":"https:\/\/e-tbc.com\/?page_id=693"},"modified":"2025-10-02T11:17:59","modified_gmt":"2025-10-02T02:17:59","slug":"%e3%81%9d%e3%81%ae%e4%bb%96%e3%81%ae%e8%a8%88%e7%ae%97","status":"publish","type":"page","link":"https:\/\/e-tbc.com\/?page_id=693","title":{"rendered":"\u305d\u306e\u4ed6\u306e\u8a08\u7b97"},"content":{"rendered":"\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\"><\/div>\n<\/div>\n\n\n\n\n\n\n\n<!DOCTYPE html>\n<html lang=\"ja\">\n<head>\n  <meta charset=\"UTF-8\" \/>\n  <title>Gas Cv &#038; Dew Point Calculators<\/title>\n  <style>\n    body { font-family: sans-serif; margin: 24px; }\n    h3 { margin-top: 0; }\n    .card { border: 1px solid #ccc; border-radius: 8px; padding: 16px; margin-bottom: 24px; }\n    label { display: inline-block; width: 220px; margin-bottom: 6px; }\n    input { width: 140px; padding: 4px; margin-bottom: 6px; }\n    button { padding: 6px 12px; margin-right: 8px; }\n  <\/style>\n<\/head>\n<body>\n\n  <!-- \u2460 Gas Cv -->\n  <div class=\"card\">\n    <h3>Cv Calculator for Gas<\/h3>\n\n    <label for=\"gasFlow\">Gas Flow (L\/min):<\/label>\n    <input type=\"number\" id=\"gasFlow\" required><br>\n\n    <label for=\"gasSpecificGravity\">Gas Specific Gravity:<\/label>\n    <input type=\"number\" id=\"gasSpecificGravity\" required><br>\n\n    <label for=\"primaryPressure\">Primary Pressure (MPa(abs)):<\/label>\n    <input type=\"number\" id=\"primaryPressure\" required><br>\n\n    <label for=\"secondaryPressure\">Secondary Pressure (MPa(abs)):<\/label>\n    <input type=\"number\" id=\"secondaryPressure\" required><br>\n\n    <label for=\"gasTemperature\">Gas Temperature (\u2103):<\/label>\n    <input type=\"number\" id=\"gasTemperature\" required><br>\n\n    <br>\n    <button onclick=\"calculateCv()\">Calculate<\/button>\n    <button onclick=\"resetGasForm()\">Reset<\/button>\n    <br><br>\n\n    <div id=\"result\"><\/div>\n  <\/div>\n\n  <!-- \u2461 Dew Point -->\n  <div class=\"card\">\n    <h3>Dew Point Calculator<\/h3>\n\n    <label for=\"temperature\">Temperature (\u2103):<\/label>\n    <input type=\"number\" id=\"temperature\" step=\"0.1\"><br>\n\n    <label for=\"humidity\">Humidity (%):<\/label>\n    <input type=\"number\" id=\"humidity\" step=\"0.1\"><br>\n\n    <br>\n    <button onclick=\"calculateDewPoint()\">Calculate<\/button>\n    <button onclick=\"resetDewForm()\">Reset<\/button>\n    <br><br>\n\n    <div id=\"result2\"><\/div>\n  <\/div>\n\n  <script>\n    \/* ===== \u2460 Gas Cv ===== *\/\n    function calculateCv() {\n      var gasFlow = parseFloat(document.getElementById(\"gasFlow\").value);\n      var gasSpecificGravity = parseFloat(document.getElementById(\"gasSpecificGravity\").value);\n      var primaryPressure = parseFloat(document.getElementById(\"primaryPressure\").value);\n      var secondaryPressure = parseFloat(document.getElementById(\"secondaryPressure\").value);\n      var gasTemperature = parseFloat(document.getElementById(\"gasTemperature\").value);\n\n      if ([gasFlow, gasSpecificGravity, primaryPressure, secondaryPressure, gasTemperature].some(isNaN)) {\n        document.getElementById(\"result\").innerHTML = \"? \u5168\u3066\u306e\u5024\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\";\n        return;\n      }\n\n      var Cv;\n      if (secondaryPressure > primaryPressure \/ 2) {\n        Cv = gasFlow * 60 \/ 1000 \/ 4140 *\n             Math.sqrt(gasSpecificGravity * (273 + gasTemperature) \/\n             ((primaryPressure - secondaryPressure) * secondaryPressure));\n      } else {\n        Cv = gasFlow * 60 \/ 1000 \/ (2070 * primaryPressure) *\n             Math.sqrt(gasSpecificGravity * (273 + gasTemperature));\n      }\n\n      document.getElementById(\"result\").innerHTML = \"Cv: \" + Cv.toFixed(3);\n    }\n\n    function resetGasForm() {\n      document.getElementById(\"gasFlow\").value = \"\";\n      document.getElementById(\"gasSpecificGravity\").value = \"\";\n      document.getElementById(\"primaryPressure\").value = \"\";\n      document.getElementById(\"secondaryPressure\").value = \"\";\n      document.getElementById(\"gasTemperature\").value = \"\";\n      document.getElementById(\"result\").innerHTML = \"\";\n    }\n\n    \/* ===== \u2461 Dew Point ===== *\/\n    function calculateDewPoint() {\n      const T = parseFloat(document.getElementById(\"temperature\").value);\n      const RH = parseFloat(document.getElementById(\"humidity\").value);\n\n      if (isNaN(T) || isNaN(RH) || RH <= 0 || RH > 100) {\n        document.getElementById(\"result2\").innerHTML = \"? \u6b63\u3057\u3044\u6e29\u5ea6\u3068\u6e7f\u5ea6\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\";\n        return;\n      }\n\n      const a = 17.62;\n      const b = 243.12;\n      const gamma = (a * T) \/ (b + T) + Math.log(RH \/ 100);\n      const dewPoint = (b * gamma) \/ (a - gamma);\n\n      document.getElementById(\"result2\").innerHTML = \"Dew Point: \" + dewPoint.toFixed(2) + \" \u2103\";\n    }\n\n    function resetDewForm() {\n      document.getElementById(\"temperature\").value = \"\";\n      document.getElementById(\"humidity\").value = \"\";\n      document.getElementById(\"result2\").innerHTML = \"\";\n    }\n  <\/script>\n<\/body>\n<\/html>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Gas Cv &#038; Dew Point Calculators Cv Calculator for Gas Gas Flow (L\/min): Gas Specific Gravity: Primary Pres [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"swell_btn_cv_data":"","vkexunit_cta_each_option":"","footnotes":""},"class_list":["post-693","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/pages\/693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/e-tbc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=693"}],"version-history":[{"count":31,"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/pages\/693\/revisions"}],"predecessor-version":[{"id":874,"href":"https:\/\/e-tbc.com\/index.php?rest_route=\/wp\/v2\/pages\/693\/revisions\/874"}],"wp:attachment":[{"href":"https:\/\/e-tbc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}