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</o:shapelayout></xml><![endif]--></head><body lang=KO link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>I heartily thank you (Mr.Wetter and Mr.Jeff and Mr.Per) for your kind comments. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>It is very helpful to sort</span><span lang=EN-US style='font-family:"맑은 고딕";color:#1F497D'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>things</span><span lang=EN-US style='font-family:"맑은 고딕";color:#1F497D'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>out</span><span lang=EN-US style='font-family:"맑은 고딕";color:#1F497D'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>in</span><span lang=EN-US style='font-family:"맑은 고딕";color:#1F497D'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>my</span><span lang=EN-US style='font-family:"맑은 고딕";color:#1F497D'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>head. <o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'><o:p> </o:p></span></p></div><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"맑은 고딕";color:#1F497D'>Best Regards, <br>Deuk-Woo, Kim <br><br><o:p></o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Per Sahlin [mailto:per.sahlin@equa.se] <br><b>Sent:</b> Friday, February 03, 2012 2:28 AM<br><b>To:</b> </span><span style='font-size:10.0pt'>김덕우</span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br><b>Cc:</b> bldg-sim@lists.onebuilding.org<br><b>Subject:</b> RE: [Bldg-sim] the use of dynamic energy simulation tool<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I think we constantly underestimate the impact on society of this field. Let’s take some pride in what we do!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Most of the wealth of developed nations is in the value of buildings. That value is starting to be related to the actual performance of those buildings. (Funny this hasn’t happened before.) We have venture capitalists calling and asking about the validation status of our tool. They want to know if they can trust the performance numbers quoted by someone selling a property. This would hardly have happened a few years back.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Suppose an engineering-proficient company, perhaps like Toyota, was challenged with the task of developing a high performance building. Do you think they would look for the latest ISO standardized monthly hand calculation method for its optimization? No, they would look for the best possible engineering tools available for describing and experimenting with dynamical virtual models of buildings. (Actually, they might not do so well first because they would probably underestimate the pure technical challenges involved).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Even a big ship, such as the AEC industry, will turn eventually in response to the challenges ahead. At that stage, real knowledge and engineering skills are likely to be more important than committee designed hand calculation methods.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cheers,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Per<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>-----------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Per Sahlin<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>EQUA Simulation AB <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><a href="mailto:per.sahlin@equa.se"><span style='font-size:8.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-US'>per.sahlin@equa.se</span></a></span><span lang=EN-US style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'> </span><span lang=EN-US style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>+46 8 546 20 111<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>+46 70 422 03 02 (mobile)<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>+46 8 546 20 101 (fax)<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>plurresahlin (skype)<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>Råsundavägen 100<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>169 57 SOLNA, Sweden<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><a href="http://www.equa.se"><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-US'>http://www.equa.se</span></a></span><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'> <o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>-----------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Michael Wetter<br><b>Sent:</b> den 2 februari 2012 07:26<br><b>To:</b> Jeff Haberl<br><b>Cc:</b> </span><span style='font-size:10.0pt'>김덕우</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>; bldg-sim@lists.onebuilding.org<br><b>Subject:</b> Re: [Bldg-sim] the use of dynamic energy simulation tool<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV>Deuk-Woo<o:p></o:p></span></p><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=SV>To add to Jeff's answer of point 4), Modelica models that allow dynamic simulation of building energy and control systems are available from </span><span lang=EN-US><a href="http://simulationresearch.lbl.gov/modelica" target="_blank"><span lang=SV>http://simulationresearch.lbl.gov/modelica</span></a></span><span lang=SV>, including source code. These models will run at sub-second time steps (when fast transients are present) and can model realistic representations of control sequences. <o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=SV>The models can also be linked to hardware through BACnet and A/D converters using the Building Controls Virtual Test Bed, </span><span lang=EN-US><a href="http://simulationresearch.lbl.gov/bcvtb" target="_blank"><span lang=SV>http://simulationresearch.lbl.gov/bcvtb</span></a></span><span lang=SV>.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=SV>See the papers, manuals and user guides at these web sites for more detailed information.<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=SV>All the best,<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div><div><p class=MsoNormal><span lang=SV>Michael<o:p></o:p></span></p></div><div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=SV>2012/2/1 Jeff Haberl <</span><span lang=EN-US><a href="mailto:jhaberl@tamu.edu" target="_blank"><span lang=SV>jhaberl@tamu.edu</span></a></span><span lang=SV>><o:p></o:p></span></p><div><div><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Dear Deuk-Woo,<o:p></o:p></span></p><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Here are a few comments on your questions:<o:p></o:p></span></p><div><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:38.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>1.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To get energy efficiency incentives, such as LEED certificate. </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>2.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To compare alternatives (wall material, window, building design) in architect point of view. </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>3.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To compare alternatives (system type and configuration, COP, etc.) in mechanical engineer point of view. </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:38.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p></div><p style='margin-left:38.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>For Items #1 - 3, EQUEST, EP+ or TRNSYS will do. In the U.S. EQUEST is the most widely used by the AE community. Note, for most of these simulations an hourly simulation will do, which is not a true dynamic simulation.</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><div><p style='margin-left:38.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:38.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>4.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To develop energy efficient control strategies and to test DDC controllers. (BEMS and emulation; maybe electric engineering field or ??)</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p></div><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>For this you'll need MATLAB and a true dynamic simulation platform (i.e., it usually needs 1 sec or less time steps and true dynamic equations). Many of the U.S. controls companies have developed extensive tools for this, including Modelica/Dymola platforms. However, they do not distribute these outside their own companies. MATLAB is fast becoming a platform of choice, perhaps because most universities teach with it. There are other platforms as well, check with your local ME or EE controls Prof. Some that come to mind are HVACSiM+ (by George Walton at NIST).</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><div><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>5.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To identify the system mal-function (such as AHU) comparing between “predicted” energy and “actual” energy in real-time. (BEMS, maybe electric engineering field??)</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p></div><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>This is a tough one. LBNL and PNNL have been working on this for some time. PNNL has their AHU fault detection program, and other programs. LBNL has their controls test bed up and running. You might also check with the Chair of ASHRAE TC 7.5 to see what the latest RPs for controls simulation. This TC has most of the knowledgable folks on it (which does not include me). </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><div><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>6.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Building Simulator: which is used to training building managers or operators or learners (students) in HVAC system operation realistically (such as flight simulator)</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p></div><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Check out Joe Deringer's LEARNHVAC web page...just amazing...there is also other emulator work at LBNL that Phil Haves and Michael Wetter are doing.</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><div><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>7.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>“</span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>JUST</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>”</span><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> verify Building behavior (HVAC operation, energy consumption, etc) over the whole year period with different whether conditions in IWEC and TMY. (to see "what could be")</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p></div><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>This can be done with forward models (i.e., simulation) or inverse models (i.e., ASHRAE RP1050), or a combination of both. You can also use component models such as those available from ASHRAe (HVAC01 and HVAC02 toolkit, RP865, RP827, etc).</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>There are other proprietary tools that diagnose HVAC problems, some have published results, some not. You'll find lots of papers (apx., 3 - 5,000) on our Lab's web site about our commissioning work, which includes air-side simulation as a diagnostic. </span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Hope this helps.</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Jeff</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><div><p><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <o:p></o:p></span></p><div><p class=MsoNormal><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'>8=! 8=) :=) 8=) ;=) 8=) 8=( 8=) 8=() 8=) 8=| 8=) :=') 8=)8=?<br><br>Jeff S. Haberl, Ph.D.,P.E., </span><span lang=EN-US><a href="mailto:FASHRAE..............jhaberl@tamu.edu" target="_blank"><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>FASHRAE..............jhaberl@tamu.edu</span></a></span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'><br><br>Professor............................................................Office Ph: </span><span lang=EN-US><a href="tel:979-845-6507" target="_blank"><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>979-845-6507</span></a></span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'><br><br>Department of Architecture.............................Lab Ph:</span><span lang=EN-US><a href="tel:979-845-6065" target="_blank"><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>979-845-6065</span></a></span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'><br><br>Energy Systems Laboratory.............................FAX: </span><span lang=EN-US><a href="tel:979-862-2457" target="_blank"><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>979-862-2457</span></a></span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'><br><br>Texas A&M University.....................................77843-3581<br><br>College Station, Texas, USA, 77843..................URL:</span><span lang=EN-US><a href="http://www.esl.tamu.edu" target="_blank"><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>www.esl.tamu.edu</span></a></span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blue'><br><br>8=/ 8=) :=) 8=) ;=) 8=) 8=() 8=) :=) 8=) 8=! 8=) 8=? 8=)8=0</span><span lang=SV style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><o:p></o:p></span></p></div></div><div><div class=MsoNormal align=center style='text-align:center'><span lang=SV style='font-family:"Times New Roman","serif"'><hr size=2 width="100%" align=center></span></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><b><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'>From:</span></b><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'> </span><span lang=EN-US><a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank"><span lang=SV style='font-family:"Tahoma","sans-serif"'>bldg-sim-bounces@lists.onebuilding.org</span></a></span><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'> [</span><span lang=EN-US><a href="mailto:bldg-sim-bounces@lists.onebuilding.org" target="_blank"><span lang=SV style='font-family:"Tahoma","sans-serif"'>bldg-sim-bounces@lists.onebuilding.org</span></a></span><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'>] on behalf of </span><span style='color:black'>김덕우</span><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'> [</span><span lang=EN-US><a href="mailto:deukwookim@skku.edu" target="_blank"><span lang=SV style='font-family:"Tahoma","sans-serif"'>deukwookim@skku.edu</span></a></span><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'>]<br><b>Sent:</b> Tuesday, January 31, 2012 11:22 PM<br><b>To:</b> </span><span lang=EN-US><a href="mailto:bldg-sim@lists.onebuilding.org" target="_blank"><span lang=SV style='font-family:"Tahoma","sans-serif"'>bldg-sim@lists.onebuilding.org</span></a></span><span lang=SV style='font-family:"Tahoma","sans-serif";color:black'><br><b>Subject:</b> [Bldg-sim] the use of dynamic energy simulation tool</span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p></div><div><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Dear all, </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I have been thinking about the use of dynamic energy simulation tool (e.g. whole building simulation tool, such as E+, ESP-r, TRNSYS, SPARK, etc). </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>The usage area of the tool would be classified into two, academic area and practical area.</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>But I really want to hear your high-level opinion on the practical areas.</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>The typical usage of energy simulation program in practice could be listed as follows (as far as I know), </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p style='margin-left:38.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>1.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To get energy efficiency incentives, such as LEED certificate. </span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>2.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To compare alternatives (wall material, window, building design) in architect point of view. </span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>3.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To compare alternatives (system type and configuration, COP, etc.) in mechanical engineer point of view. </span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:38.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>4.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To develop energy efficient control strategies and to test DDC controllers. (BEMS and emulation; maybe electric engineering field or ??)</span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>5.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To identify the system mal-function (such as AHU) comparing between “predicted” energy and “actual” energy in real-time. (BEMS, maybe electric engineering field??)</span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>6.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>Building Simulator: which is used to training building managers or operators or learners (students) in HVAC system operation realistically (such as flight simulator)</span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p style='margin-left:40.0pt'><span lang=EN-US style='font-family:"Times New Roman","serif"'>7.</span><span lang=EN-US style='font-size:7.0pt;font-family:"Times New Roman","serif"'> </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>To </span><span lang=SV style='font-family:"Times New Roman","serif"'>“</span><span lang=EN-US style='font-family:"Times New Roman","serif"'>JUST</span><span lang=SV style='font-family:"Times New Roman","serif"'>” </span><span lang=EN-US style='font-family:"Times New Roman","serif"'>verify Building behavior (HVAC operation, energy consumption, etc) over the whole year period with different whether conditions in IWEC and TMY. (to see "what could be")</span><span lang=SV style='font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I think that the large portion of usage would be #1. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>But, the problem have been arisen due to the uncertainties and </span>“<span lang=EN-US>too many</span>”<span lang=EN-US> required input values of dynamic simulation tools. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>As far as I know in South Korea, many people say </span>“<span lang=EN-US>these tools are not suited to assess building energy performance with acceptable speed. And there is no evidence it is helpful to achieve energy reduction actually. Something are missing. We (AEC) do not want to do full dynamic simulation. We just need a tool that is simple and faster and reliable</span>”<span lang=EN-US>. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>These days, the government is willing to move their direction which requires architects just to submit a building energy analysis report using simple ISO toolkit. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>(many of my colleague agree to need of the normative performance method, ISO 13790 and DIN 18599.)</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Now, in this situation, we have to rethink about the purpose of doing full dynamic energy simulation (E+, ESP-r, TRNSYS, etc) with practicality in mind.</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I think that its usage would be more suitable for #4, #5, #6 rather than #1, #2, #3. Because #1,#2,#3 can be evaluated using ISO standards with acceptable speed and accuracy. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>(but I do not know well about the usage in the fields of #4, #5, #6)</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I</span>’<span lang=EN-US>m waiting your comments on my thoughts.</span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>p.s. this topic was discussed in E+ user group before, and the contents are slightly revised for better discussions. </span><span lang=SV><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=SV> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><span lang=EN-US>Best Regards, <br>Deuk-Woo, Kim </span><span lang=SV><o:p></o:p></span></p></div></div></div></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=SV><br>_______________________________________________<br>Bldg-sim mailing list<br></span><span lang=EN-US><a href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" target="_blank"><span lang=SV>http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</span></a></span><span lang=SV><br>To unsubscribe from this mailing list send a blank message to </span><span lang=EN-US><a href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" target="_blank"><span lang=SV>BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</span></a></span><span lang=SV><o:p></o:p></span></p></div><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p></div></div></div></body></html>