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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'>Hi Rathna,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'>What software are you using ? You might want to go through the attached modelling protocol attached from LG as Sherif mentions . <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'>Harris <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'><o:p> </o:p></span></p><div><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:#FF9B26'>Harris Qureshi, B.E(Mech), MSc. Energy, LEED AP Homes</span></b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:#FF9B26'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'>Mechanical Engineer<br>Stantec<br>Dubai Investment Park, PO Box 52764 Dubai UAE <br>Phone: +971-4-812-5947<br>Cell: +971-50-189-9924<br></span><a href="mailto:Harris.Qureshi@stantec.com"><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black;text-decoration:none'>Harris.Qureshi@stantec.com</span></a><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:4.0pt;font-family:"Century Gothic","sans-serif";color:black'> <o:p></o:p></span></p></div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td style='padding:0in 0in 0in 0in'><p class=MsoNormal><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
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</v:shapetype><v:shape id="Picture_x0020_2" o:spid="_x0000_s1026" type="#_x0000_t75" alt="Stantec" href="http://www.stantec.com/" style='position:absolute;margin-left:0;margin-top:0;width:75pt;height:20.25pt;z-index:251659264;visibility:visible;mso-wrap-style:square;mso-width-percent:0;mso-height-percent:0;mso-wrap-distance-left:0;mso-wrap-distance-top:0;mso-wrap-distance-right:0;mso-wrap-distance-bottom:0;mso-position-horizontal:left;mso-position-horizontal-relative:text;mso-position-vertical:absolute;mso-position-vertical-relative:line;mso-width-percent:0;mso-height-percent:0;mso-width-relative:page;mso-height-relative:page' o:allowoverlap="f" o:button="t">
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</v:shape><![endif]--><![if !vml]><a href="http://www.stantec.com/"><img border=0 width=100 height=27 src="http://www.stantec.com/content/dam/stantec/images/esignature/stantec.png" align=left alt=Stantec title="" v:shapes="Picture_x0020_2"></a><![endif]><span style='color:blue'><o:p></o:p></span></p></td></tr></table><div><p class=MsoNormal><span style='font-size:2.0pt;font-family:"Century Gothic","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:4.0pt;font-family:"Century Gothic","sans-serif";color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:7.0pt;font-family:"Century Gothic","sans-serif";color:black'>The content of this email is the confidential property of Stantec and should not be copied, modified, retransmitted, or used for any purpose except with Stantec's written authorization. If you are not the intended recipient, please delete all copies and notify us immediately.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:4.0pt;font-family:"Century Gothic","sans-serif";color:black'> <o:p></o:p></span></p></div></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:Webdings;color:#008040'>ü</span><span style='color:blue'> </span><span style='font-size:7.0pt;font-family:"Century Gothic","sans-serif";color:#008040'>Please consider the environment before printing this email.</span><span style='color:blue'> </span><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:blue'><o:p></o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Bldg-sim [</span><a href="mailto:bldg-sim-bounces@lists.onebuilding.org"><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>mailto:bldg-sim-bounces@lists.onebuilding.org</span></a><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>] <b>On Behalf Of </b>Sherif Farag<br><b>Sent:</b> Wednesday, May 27, 2015 5:26 PM<br><b>To:</b> Rathna Shree<br><b>Cc:</b> BldgSim Mailing List; </span><a href="mailto:equest-users@onebuilding.org"><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>equest-users@onebuilding.org</span></a><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br><b>Subject:</b> Re: [Bldg-sim] VRF performance curve<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi Rathna,<o:p></o:p></p><div><p class=MsoNormal>LG has a plug-in that works good with eQuest, I tried it and I noticed the % of energy saving will be on the region of 20% when compared to PTAC (Not compared to the App G. Baseline).<o:p></o:p></p></div><div><p class=MsoNormal>Thanks;<o:p></o:p></p></div><div><p class=MsoNormal>Sherif Farag<o:p></o:p></p></div><div><p class=MsoNormal>Technical Director<o:p></o:p></p></div><div><p class=MsoNormal>Integrated Environmental Services (IES) Ltd. <o:p></o:p></p></div><div><p class=MsoNormal>Abu Dhabi - UAE<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On May 27, 2015, at 11:18 AM, Rathna Shree <<a href="mailto:rathnashreep@yahoo.in">rathnashreep@yahoo.in</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><div id="yui_3_16_0_1_1432709861102_2418"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>Dear All,<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2532"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2563"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>I worked on a couple of projects in equest using the VRF performance curves from Daikin and LG. The methodology i followed is as below:<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2596"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2597"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>1) Modelled packaged VAV with minimum flow ratio 1. <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2628"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>2) Created systems based on number of ODU's and assigned multiple zones to the respective ODU. (Just like modelling a AHU)<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2793"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>3) Inputted the ODU Cooling capacity and supply flow<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2629"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>4) Fans will be constant volume.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2630"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>5) Since it is a cooling only system, i assigned only the "Cool EIR - fEWB-OAT", "Cool-EIR-fPLR" and "Cool cap-fEWB&OAT" curves. Rest were all default DX unit curves.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2736"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2856"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'> PVAV system is used as PSZ system cannot handle multiple zones well thus causing unmet hours.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2858"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2735"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>I did 2 trials, one with default DX curves and the other with performance curves from LG and Daikin. The results showed a decrease in cooling energy consumption by more than 30% thus impacting the overall energy consumption by more than 10%. <o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2748"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2829"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>Is the simulation methodology and results appropriate? I feel the savings is on a higher side.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2871"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2872"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>Please advise.<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2830"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'><o:p> </o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2853"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>Regards,<o:p></o:p></span></p></div><div id="yui_3_16_0_1_1432709861102_2854"><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica Neue"'>Rathnashree<o:p></o:p></span></p></div></div></div><p class=MsoNormal>_______________________________________________<br>Bldg-sim mailing list<br><a href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a><br>To unsubscribe from this mailing list send a blank message to <a href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG">BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</a><o:p></o:p></p></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>