{"id":3676,"date":"2019-02-12T16:09:36","date_gmt":"2019-02-12T16:09:36","guid":{"rendered":"https:\/\/cyflexdoc.wpengine.com\/usage-help-manual\/16-fluid-composition-and-properties\/gas_prop\/"},"modified":"2026-05-13T09:36:45","modified_gmt":"2026-05-13T14:36:45","slug":"gas_prop","status":"publish","type":"page","link":"https:\/\/cyflex.com\/index.php\/usage-help-manual\/20-fluid-composition-and-properties\/gas_prop\/","title":{"rendered":"gas_prop"},"content":{"rendered":"<div>\n<h3>Purpose:<\/h3>\n<\/div>\n<dl>\n<dd>\n<p>Compute and update gas properties based on input variables in a continuous manner.<\/p>\n<\/dd>\n<\/dl>\n<h3>Enter:<\/h3>\n<dl>\n<dd>\n<p><strong>gas_prop<\/strong> &lt;priority&gt; &lt;interval&gt; &lt;spec_file&gt; [+c] &amp;<\/p>\n<\/dd>\n<\/dl>\n<h3>Where:<\/h3>\n<dl>\n<dd>\n<div>\n<table style=\"width: 100%;\" cellspacing=\"0\" cellpadding=\"0\">\n<colgroup>\n<col \/>\n<col \/> <\/colgroup>\n<tbody>\n<tr>\n<td style=\"width: 11.1876%;\">\n<p>priority<\/p>\n<\/td>\n<td style=\"width: 88.6403%;\">\n<p>Specify the system task priority.<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 11.1876%;\">\n<p>interval<\/p>\n<\/td>\n<td style=\"width: 88.6403%;\">\n<p>Specify the time interval or rate the calculations should be made.\u00a0<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 11.1876%;\">\n<p>spec_file<\/p>\n<\/td>\n<td style=\"width: 88.6403%;\">\n<p>Specify the specification file path.\u00a0<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 11.1876%;\">\n<p>+c<\/p>\n<\/td>\n<td style=\"width: 88.6403%;\">\n<p>Optional. Specify this flag to indicate a critical task to the watchdog. The default is to leave the task non-critical.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/dd>\n<\/dl>\n<h3>Example:<\/h3>\n<dl>\n<dd>\n<p><strong>gas_prop<\/strong> 12 1000 \/specs\/properties\/prop_specs.319 &amp;<br \/>\nThe above command sets the priority of the process to be 12 and performs\u00a0 the gas properties at the rate of once every second.\u00a0\u00a0<\/p>\n<p>The gas_prop task will register its name with the spec_file name (not the full pathame), in this case &#8220;prop_specs.319&#8221;.\u00a0 This name can be used by the &#8216;re-read&#8217; command to request that it update the specifications by reading the specification file again.\u00a0 This feature allows the specifications to be changed &#8220;on-the-fly&#8221; without slaying and restarting the app.\u00a0<\/p>\n<\/dd>\n<\/dl>\n<h3>Notes:<\/h3>\n<dl>\n<dd>\n<p>This process can be reconfigured by setting the re-read event to update specifications without restarting.<\/p>\n<\/dd>\n<\/dl>\n<h3>See Also:<\/h3>\n<dl>\n<dd>\n<p><a href=\"\/wp-content\/uploads\/Natural-Gas-Burner-Sizing-Calculations.pdf\">Natural Gas Burner Sizing Calculations<\/a>, <a href=\"\/wp-content\/uploads\/Gas-Composition-and-Flow-Computation-Program.pdf\">Computing Gas Stream Composition and Gas Flow<\/a>, <a href=\"\/wp-content\/uploads\/Composition-and-Property-Variables.pdf\">Composition and Property Variables<\/a><\/p>\n<\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Purpose: Compute and update gas properties based on input variables in a continuous manner. Enter: gas_prop &lt;priority&gt; &lt;interval&gt; &lt;spec_file&gt; [+c] &amp; Where: priority Specify the system task priority. interval Specify the time interval or rate the calculations should be made.\u00a0 spec_file Specify the specification file path.\u00a0 +c Optional. Specify this flag to indicate a critical [&hellip;]<\/p>\n","protected":false},"author":47,"featured_media":0,"parent":1963,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3676","page","type-page","status-publish","hentry"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/comments?post=3676"}],"version-history":[{"count":0,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/3676\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/pages\/1963"}],"wp:attachment":[{"href":"https:\/\/cyflex.com\/index.php\/wp-json\/wp\/v2\/media?parent=3676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}