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<p class="MsoNormal">Hello All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am investigating the use of Phase Change Material for a supermarket in Nicaragua and its impact on cooling load capacity. The phase change manufacturer we are working with sent us the following information to input into HAP:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">M27 Heat Capacity</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">M51 Heat Capacity</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">Thickness [m]
</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">0.027</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">0.051</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:115%">
<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">Conductivity [W/m-K]
</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">1.8</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">1.8</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:115%">
<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">Density [kg/m3]</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">810</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">810</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<tr style="height:15.75pt">
<td valign="bottom" style="border:inset 1.0pt;border-top:none;padding:1.5pt 2.25pt 1.5pt 2.25pt;height:15.75pt">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;line-height:115%">
<span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">Specific Heat [J/kg-K]</span><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<td valign="bottom" style="border-top:none;border-left:none;border-bottom:inset 1.0pt;border-right:inset 1.0pt;padding:1.5pt 2.25pt 1.5pt 2.25pt;height:15.75pt">
<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">13,384</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;text-align:right;line-height:115%">
<b><span style="font-size:10.0pt;line-height:115%;font-family:"Arial","sans-serif"">13,384</span></b><span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif""><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The manufacturer said that he ran a similar model in eQuest and said that we should’ve seen a 20% reduction in the cooling load. However, when I run the load calcs, the total cooling load capacity is similar to the cooling load of the
baseline roof. I entered the following information for the M51 material for the roof under the Roof Properties, as shown below (I had to enter the material twice because HAP only allows a max specific heat value of 8.37 KJ/kg/K).
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img width="454" height="330" id="Picture_x0020_2" src="cid:image001.jpg@01D00F9F.EB3B8EB0"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My question is: am I inputting the thermal mass information right, or is there a better workaround to this? Has anyone had experience with modeling phase change material in HAP?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img width="119" height="37" id="Picture_x0020_1" src="cid:image002.jpg@01D00F9F.EB3B8EB0" alt="cid:image001.jpg@01CCAE92.6FC59620"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-top:6.0pt"><b><span style="font-size:14.0pt;font-family:"Avenir 55";color:#2D4D5E">Eric Rivera<o:p></o:p></span></b></p>
<p class="MsoNormal" style="margin-top:12.0pt"><span style="font-family:"Avenir 55";color:#2D4D5E">25501 west valley parkway</span><span style="font-size:10.0pt;font-family:"Avenir 55";color:#2D4D5E"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Avenir 55";color:#2D4D5E">olathe ks 66061<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Avenir 55";color:#0070C0">direct: 913.344.0036<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Avenir 55";color:#2D4D5E">main:</span><span style="font-family:"Times New Roman","serif";color:#2D4D5E"> </span><span style="font-family:"Avenir 55";color:#2D4D5E">913 345.2127<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Avenir 55";color:#2D4D5E">fax: 913 345.0617<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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