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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Gab,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I would also like to mention something that I did that can be replicated with not too much difficulty for the external TRNSYS data files for Type666.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">You mentioned that you were looking at the EnergyPlus’s
<b>Chiller:Electric:EIR. </b>This is a convenient place to start because of the numerous chiller data information in the
<b>C:\EnergyPlusV8-4-0\Chillers.idf</b> file (I recommend viewing this in the IDF Editor). Like the Type666 chiller the performance of this E+ model is also based on the relevant temperatures and EIR.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Cooling capacity as a function of CW supply temp and entering condenser temp curve = a + b*CWS + c*CWS**2 + d*ECT + e*ECT**2 + f*CWS*ECT
<br>
</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">CWS = supply (leaving) chilled water temperature(C) ECT = entering condenser fluid temperature(C)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Electric Input Ratio (EIR) as a function of temperature EIR = 1/COP curve = a + b*CWS + c*CWS**2 + d*ECT + e*ECT**2 + f*CWS*ECT
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">CWS = supply (leaving) chilled water temperature(C) ECT = entering condenser fluid temperature(C)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Electric Input Ratio (EIR) as a function of Part Load Ratio (PLR) EIR = 1/COP quadratic curve = a + b*PLR + c*PLR**2<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">PLR = part load ratio (cooling load/steady state capacity)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In the *.idf file are the the coefficients and temperature ranges for the above equations for the 162 different chillers. What my colleague did was create a spreadsheet
that takes the confidents and tabulated different temperatures and performance, so he could plot the chiller curves. What I did was use the tabulated temperatures and performance to make the TRNSYS data files. Now, I can simply plug in the coefficients and
temperature ranges from that E+ file, and I automatically get the TRNSYS Type666 data files. I cannot share the spreadsheet tool, yet it does not take too much effort or time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Please let me know if you have any questions while this is still fresh in my mind.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Matt<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">P.S. TRNSYS/TESS development team: For the wish list, I would like to put a request for a chiller model based on the E+
</span><span style="font-family:"Calibri",sans-serif">Chiller:Electric:ReformulatedEIR</span>
<span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">model that uses performance maps based on leaving condenser water temperature (oppose to entering).<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a href="https://energyplus.net/sites/all/modules/custom/nrel_custom/pdfs/pdfs_v8.4.0/EngineeringReference.pdf">https://energyplus.net/sites/all/modules/custom/nrel_custom/pdfs/pdfs_v8.4.0/EngineeringReference.pdf</a><o:p></o:p></p>
<p class="MsoNormal">(page 594)<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>wajahat Khan<br>
<b>Sent:</b> Tuesday, February 02, 2016 10:02 AM<br>
<b>To:</b> trnsys-users@lists.onebuilding.org<br>
<b>Subject:</b> [TRNSYS-users] Type 666 Data<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:fuchsia"><br clear="all">
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:fuchsia"></span><span style="font-size:9.5pt;color:fuchsia">Dear </span><b><span style="font-size:13.5pt;color:black">GABRIEL</span></b><span style="color:fuchsia"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt;color:fuchsia"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:13.5pt;color:black">1)Chilled water inlet temperature is t</span><span style="color:black">he temperature of the chilled water stream entering the chiller.It is the temperature of the fluid returning from load
e.g. air handling unit.</span></b><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">whereas cooling water temperature is the the temperature at which the cooling water flow stream enters the chiller from cooling tower to provide cooling in its condenser unit.</span></b><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">2)Chilled water set point temperature is the the set point temperature for the chilled water stream. If the chiller has the capacity to meet the current load, the chiller will modulate to meet the load and
chilled water stream will leave at this temperature.</span></b><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<div>
<p class="MsoNormal"><b><span style="color:black">So chilled water inlet temperature is at which chilled water from load enter the chiller and chilled water set point is the temperature at which you want the chilled water from chiller to enter in load.</span></b><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">3)Most of the chiller manufacturing companies provides softwares to check chiller performance by varying chilled water inlet temp,cooling water temp etc.Using that software you can create your own data file.for
example check this link</span></b><span style="font-size:9.5pt"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><a href="http://www.ppiway.com/chillerperformance/index.html" target="_blank"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">http://www.ppiway.com/chillerperformance/index.html</span></a> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:13.5pt;color:black">I hope i answered your question.</span></b><span style="color:fuchsia"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:fuchsia">M Wajahat Khan<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>#GABRIEL GOH SZE WEI#<br>
<b>Sent:</b> Tuesday, February 02, 2016 5:17 AM<br>
<b>To:</b> trnsys-users@lists.onebuilding.org<br>
<b>Subject:</b> [TRNSYS-users] Type 666 Data<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black">I am using Trnsys17 and I have some queries on Type 666.
<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">1.</span><span style="font-size:7.0pt;color:black">
</span><span style="font-family:"Calibri",sans-serif;color:black">What is the difference between Chilled Water Inlet Temperature and Cooling Water Temperature? Does this correspond to chilled water return temp (entering) and chilled water supply temp (leaving)
respectively?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">2.</span><span style="font-size:7.0pt;color:black">
</span><span style="font-family:"Calibri",sans-serif;color:black">How are Chilled Water Inlet Temperature and Cooling Water Temperature different from CHW Set Point Temeprature?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">3.</span><span style="font-size:7.0pt;color:black">
</span><span style="font-family:"Calibri",sans-serif;color:black">Similarly what is the difference between Chilled Water Flowrate and Cooling Water Flowrate?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;background:white"><span style="font-family:"Calibri",sans-serif;color:black">4.</span><span style="font-size:7.0pt;color:black">
</span><span style="font-family:"Calibri",sans-serif;color:black">I have a specific chiller which I intend to input. How do I convert the biquadratic coefficients for the performance curves into text file for full and part load. Link to chiller specs
<a href="http://simulationresearch.lbl.gov/modelica/releases/v2.1.0/help/Buildings_Fluid_Chillers_Data_ElectricEIR.html#Buildings.Fluid.Chillers.Data.ElectricEIR.ElectricEIRChiller_Carrier_19EX_5208kW_6_88COP_Vanes" id="LPlnk662928">
http://simulationresearch.lbl.gov/modelica/releases/v2.1.0/help/Buildings_Fluid_Chillers_Data_ElectricEIR.html#Buildings.Fluid.Chillers.Data.ElectricEIR.ElectricEIRChiller_Carrier_19EX_5208kW_6_88COP_Vanes</a><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black">Thank you :)<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black">Kindest regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;background:white">
<span style="color:black">Gab<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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