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<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Hi Diwanshu,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Just to expand
on Haider’s message, parametric analysis is applied to a base building
design to see the effect of changing (usually one or 2) design parameters on a
particular performance variable. The results are plotted as a curve or a series
of curves to illustrate the variation graphically. For example, you might be
interested to know the effect on building carbon emissions of varying the
amount of glazing in the building and you might want to know this for 3
different types of glazing. The graph below was generated by DesignBuilder
using the EnergyPlus simulation engine by selecting the parameters to vary. Because
glazing provides both benefits (heat in winter and light) and penalties
(cooling load), parametric analysis can give useful insights into the
relationship between the design parameters and a chosen performance parameter (annual
carbon emissions in this case). In the example graph below there is a minimum
carbon emissions at just below 80% glazing and this might help guide an
architect at early stages of the design process towards a basic optimised configuration.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Andy <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><img width=542
height=415 id="Picture_x0020_2" src="cid:image001.jpg@01CB02FA.3E6902A0"></span><span
style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p>
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<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"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Haider<br>
<b>Sent:</b> 03 June 2010 01:30<br>
<b>To:</b> Shekhar, Diwanshu<br>
<b>Cc:</b> bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Bldg-sim] Parametric analysis/modeling and Live
analysis/modeling<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<div>
<p class=MsoNormal>Hi Diwanshu,<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><o:p> </o:p></p>
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<div>
<p class=MsoNormal>Since you are posting to this group I am going to give an
example related to buildings. Let me start with modeling. You can
mathematically model the physic of heat transfer in a building. This is <span
class=apple-style-span>generally referred to as modeling. The advantage of
this is that you can simulate the heat transfer in the building without
actually have to build it or build a scale model. The inputs of the building
model such as window solar heat gain coefficient etc. can be varied within
some constraints to determine the disadvantage/advantage of that on the
building energy consumption thereby optimizing the building to consume the
least amount of energy. The varying of window solar heat coefficient in the
above example would be referred to as parametric analysis. This is a simplistic
yet time consuming methodology of optimizing the building energy efficiency
feature.</span><o:p></o:p></p>
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<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal><span class=apple-style-span>Hope this helps. </span><o:p></o:p></p>
</div>
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<p class=MsoNormal><br>
Haider Khan.<o:p></o:p></p>
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<p class=MsoNormal>ICF International.<o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><br>
On Jun 2, 2010, at 1:01 PM, "Shekhar, Diwanshu" <<a
href="mailto:diwanshu.shekhar@lmco.com">diwanshu.shekhar@lmco.com</a>>
wrote:<o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hello
all,<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>I
am having a hard time understanding the concept of parametric analysis/modeling
and Live analysis/modeling. I am sorry to say that Google is not very helpful
here. I would appreciate if anybody here would explain these concepts to me.
Thanks in advance.<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
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style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#605F4B'>DS</span></b><o:p></o:p></p>
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style='font-size:11.5pt;font-family:"Arial","sans-serif";color:#605F4B'>Diwanshu
Shekhar</span></b><o:p></o:p></p>
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