<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>Stephen Royds's Activities</title><link>https://communities.bentley.com/members/e50f80bf_2d00_120f_2d00_4ceb_2d00_9616_2d00_ed967b3d0b15</link><description>Stephen Royds's recent activity</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>Ask A Question I</title><link>https://communities.bentley.com/achievements/460ac7df-7ccc-4c42-a204-9e05eef3be09</link><pubDate>Wed, 21 Jun 2023 01:42:33 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:ac210dee-2d1c-4a85-859e-bdab1d052cec</guid><dc:creator /><description>Ask a question in a forum.</description></item><item><title>WaterGems: Pump controls based off volume pumped, any ideas?</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/246753/watergems-pump-controls-based-off-volume-pumped-any-ideas</link><pubDate>Wed, 21 Jun 2023 05:44:30 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:9e184734-5888-430b-ab3e-8b90232364d5</guid><dc:creator>Stephen Royds</dc:creator><description>&lt;p&gt;We have two water pump stations both pumping to an elevated reservoir with the same on/off relative levels, however, PS1 system is fed from elevated reservoir and only needs boosting during peak flows, while PS2 system is fed via a large ground reservoir that requires booster pumps. The concept for the new PS1 system is to eliminate the need for pumping energy during off peak demand usage times, however, due to water quality and emergency storage considerations,&amp;nbsp;we still need to keep the larger ground RES about 80% full and therefore must turnover 9ML volume each day.&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;Example of Control logic required:&lt;/p&gt;
&lt;p&gt;12AM to 8AM - PS1 system ON (includes booster PMP1 and gravity main bypass),&amp;nbsp; PS1 PMP1 On if ET RES1 &amp;lt;80%, PMP1 OFF &amp;gt;95%&lt;/p&gt;
&lt;p&gt;At 8am PS1 system OFF AND PS2 system ON until 9ML is pumped from PS2 PMP1 (from ground RES) OR ET RES1 falls below 70% PS2 PMP1 ON, PMP1 OFF &amp;gt;95%&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;I can&amp;#39;t see any flow volume based controls for pumps in watergems?&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The less optimal way might be to simulate our system manually by determining times that correspond with flow volume targets for particular demand days, but this way is not optimal.&lt;/p&gt;
&lt;p&gt;Any help is appreciated,&amp;nbsp;thanks&lt;/p&gt;
&lt;p&gt;Stephen&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>How to model set point chlorine dosing in WaterGems?</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/138122/how-to-model-set-point-chlorine-dosing-in-watergems</link><pubDate>Wed, 05 Jul 2017 01:15:54 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:283745b0-c39b-4857-b4c3-5c3fb28fe521</guid><dc:creator>Stephen Royds</dc:creator><description>&lt;p&gt;Gidday,&lt;/p&gt;
&lt;p&gt;We can&amp;#39;t see any capability in WaterGems to model set point CL2 dosing.&lt;br /&gt;&lt;br /&gt;For instance, we have a CL2 dosing station at a pump station that is set up like a &amp;quot;mass booster&amp;quot; and only doses when CL2 residuals drop below 2mg/L in the downstream Reservoir (albeit several km&amp;#39;s away). However, we don&amp;#39;t want the mass booster on all the time, only when levels drop below the target 2mg/L.&lt;/p&gt;
&lt;p&gt;We are wanting to simulate this to calibrate our CL2 residuals in our hydraulically calibrated water model.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;There appears to be no control logic or control conditions to turn CL2 dosing on/off in WaterGems, just pattern based profiles?&lt;/p&gt;
&lt;p&gt;Many thanks,&lt;/p&gt;
&lt;p&gt;Stephen Royds&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>SewerGems - simulate flooding after pump failure</title><link>https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/129928/sewergems---simulate-flooding-after-pump-failure</link><pubDate>Thu, 22 Dec 2016 04:20:41 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:707c3089-637a-4c1c-b902-8a557cf542a5</guid><dc:creator>Stephen Royds</dc:creator><description>&lt;p&gt;What we are trying to simulate is the storage volume in our network at ADWF flows after a pump failure into our WWTP.&lt;/p&gt;
&lt;p&gt;So how long before we overflow at the lowest manhole elevation, and from that point, how much storage volume do we have on top of normal flows at ADWF.&lt;/p&gt;
&lt;p&gt;We are using the Sewergems implicit engine, is this the best option?&lt;/p&gt;
&lt;p&gt;Thanks&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>