Duct sizing - Roughness figureshttps://communities.bentley.com/products/building/performance/w/building_performance__wiki/25274/duct-sizing-roughness-figuresen-USTelligent Community 12Duct sizing - Roughness figureshttps://communities.bentley.com/products/building/performance/w/building_performance__wiki/25274/duct-sizing-roughness-figuresThu, 29 Sep 2016 11:34:38 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:69889e01-30fe-48da-ab2e-1c79a8536bcdShane Reganhttps://communities.bentley.com/products/building/performance/w/building_performance__wiki/25274/duct-sizing-roughness-figures#commentsCurrent Revision posted to Hevacomp Wiki by Shane Regan on 9/29/2016 11:34:38 AM<br /> <table style="border:0px solid #dce5f0;background-color:#dce5f0;" border="0"> <tbody> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td width="30%" style="text-align:right;"><strong>Product(s):</strong></td> <td>Hevacomp Mechanical Designer</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Version(s):</strong></td> <td>V8i</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Environment:</strong></td> <td>N/A</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Area:</strong></td> <td>Netsys Ductwork</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Subarea:</strong></td> <td>N/A</td> <td></td> </tr> </tbody> </table> <h1>Overview</h1> <p>Roughness&nbsp;values&nbsp;used in Netsys Duct sizing&nbsp;calculations are dependant on the type of ductwork being used.&nbsp;</p> <h1>Method</h1> <p style="text-align:left;">The following table displays the roughness value for each ductwork type:</p> <table style="margin-right:auto;margin-left:auto;" border="0"> <tbody> <tr> <td style="text-align:center;">&nbsp;&nbsp;&nbsp; Ductwork type&nbsp;&nbsp;&nbsp;</td> <td>&nbsp;&nbsp;&nbsp; Roughness&nbsp;&nbsp;&nbsp;</td> </tr> <tr> <td>Circular galvanised sheet</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15</td> </tr> <tr> <td>Circular spirally wound</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.075</td> </tr> <tr> <td>Rectangular galvanised sheet</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15</td> </tr> <tr> <td>Flat oval</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.075</td> </tr> <tr> <td>Flexible</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3</td> </tr> </tbody> </table> <p></p> <p><a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-18/NewLogo.png"><img width="189" height="60" style="border-width:0px;" alt=" " src="/cfs-file.ashx/__key/communityserver-components-sitefiles/TSG-Logo.png" /></a></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: Roughness, Ducts, Duct sizing, Hevacomp, netsys</div> Duct sizing - Roughness figureshttps://communities.bentley.com/products/building/performance/w/building_performance__wiki/25274/duct-sizing-roughness-figures/revision/1Mon, 16 Nov 2015 15:09:10 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:69889e01-30fe-48da-ab2e-1c79a8536bcdDuncan Brownhttps://communities.bentley.com/products/building/performance/w/building_performance__wiki/25274/duct-sizing-roughness-figures#commentsRevision 1 posted to Hevacomp Wiki by Duncan Brown on 11/16/2015 3:09:10 PM<br /> <h1><b><img width="189" height="60" style="border-width:0px;" alt=" " src="/cfs-file.ashx/__key/communityserver-components-sitefiles/TSG-Logo.png" /></b></h1> <table style="border:0px solid #dce5f0;width:500px;background-color:#dce5f0;" border="0"> <tbody> <tr> <td style="text-align:right;"><b>&nbsp;</b></td> <td style="text-align:right;"><b>&nbsp;</b></td> <td></td> <td></td> </tr> <tr> <td style="text-align:right;"><b>&nbsp;</b></td> <td style="text-align:right;"><span style="font-size:medium;"><b>Applies To&nbsp;</b></span></td> <td></td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td></td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Product(s):</strong></td> <td>Hevacomp Mechanical Contractor</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Version(s):</strong></td> <td>V8i</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Environment:&nbsp;</strong></td> <td>N/A</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Area:&nbsp;</strong></td> <td>N/A</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Subarea:&nbsp;</strong></td> <td>N/A</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>Original Author:</strong></td> <td>Bentley Technical Support Group</td> <td></td> </tr> <tr> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td style="text-align:right;"><strong>&nbsp;</strong></td> <td></td> <td></td> </tr> </tbody> </table> <h1>Method</h1> <p>The following figures are used by the Netsys Duct sizing program<br /><br /></p> <p style="text-align:center;"></p> <p style="text-align:center;"></p> <p style="text-align:center;"></p> <table style="margin-right:auto;margin-left:auto;" border="0"> <tbody> <tr> <td style="text-align:center;">&nbsp;&nbsp;&nbsp; Ductwork type&nbsp;&nbsp;&nbsp;</td> <td>&nbsp;&nbsp;&nbsp; Roughness&nbsp;&nbsp;&nbsp;</td> </tr> <tr> <td>Circular galvanised sheet</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15</td> </tr> <tr> <td>Circular spirally wound</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.075</td> </tr> <tr> <td>Rectangular galvanised sheet</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.15</td> </tr> <tr> <td>Flat oval</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0.075</td> </tr> <tr> <td>Flexible</td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3</td> </tr> </tbody> </table> <p></p> <p></p> <p></p> <p></p> <h1>External links</h1> <p style="margin-left:30px;"><a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-18/Saying-Thanks.jpg"></a><a title="Bentley Homepage" href="http://www.bentley.com/">Bentley homepage</a></p> <p style="margin-left:30px;"><a title="Bentley Learn Server" href="http://lms.bentley.com/">Bentley LEARN Server</a></p> <p><a href="/cfs-file/__key/communityserver-wikis-components-files/00-00-00-00-18/7848.Saying-Thanks.jpg"><img alt=" " src="/resized-image/__size/940x0/__key/communityserver-wikis-components-files/00-00-00-00-18/7848.Saying-Thanks.jpg" /></a></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: Roughness, Ducts, Duct sizing, Hevacomp, netsys</div>