Engineering Script

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Description	<div class="post-outer" style="color: rgb(68, 68, 68); font-family: Consolas; font-size: 15px;"><div class="post hentry uncustomized-post-template" itemprop="blogPost" itemscope="itemscope" itemtype="http://schema.org/BlogPosting" style="position: relative; min-height: 0px;"><div class="post-body entry-content" id="post-body-5463922226366305832" itemprop="articleBody" style="width: 880px; line-height: 1.4; position: relative;"><div>When dealing with gas flow rates, normal condition, standard condition, and actual condition must be handled carefully. </div><div><br><h2 style="margin: 0px; position: relative; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-weight: bold; font-stretch: normal; font-size: 14px; line-height: normal; font-family: "Trebuchet MS", Trebuchet, sans-serif; color: rgb(0, 0, 0);"><span style="font-family: Consolas;">Definition of Normal state and Standard state</span></h2></div><div><br></div><div>Normal state is 0℃, 1 atm, and Nm3/hr units are usually used.</div><div>Standard state is 15℃ (60℉), 1 atm.<br><br></div><div><h2 style="margin: 0px; position: relative; font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-weight: bold; font-stretch: normal; font-size: 14px; line-height: normal; font-family: "Trebuchet MS", Trebuchet, sans-serif; color: rgb(0, 0, 0);"><span style="font-family: Consolas;">Example</span><span style="font-family: Consolas;"> of Normal state and Standard state</span></h2><div><br></div>If the flow rate is 5,000 Nm3/hr at 1 bar and 0 ℃, What is the flow rate at 7 bar and 20 ℃?<br><br></div><div>Normal condition<span style="white-space: pre;"> <br></span>Pn = 1 bar (=absolute pressure)<br>Tn = 0 ℃<br>Vn = 5000 Nm3/hr</div><br>Actual condition<span style="white-space: pre;"> </span><br>Pa = 7 bar<br>Ta = 20 ℃<br>Va = ?<br><br>PnVn/Tn = PaVa/Ta<br>Va = Pn/PaTa/TnVn<br>Va = 1/3(273+50)/(273+0)5000 = 1,972 m3/hr</div><div class="post-body entry-content" id="post-body-5463922226366305832" itemprop="articleBody" style="width: 880px; line-height: 1.4; position: relative;"><br></div></div></div>