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<p class="MsoNormal">Dear fellow TRNSYS users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am currently building a model with the TESS type 997, horizontal heat exchanger, for the first time and have some questions about the parameterisation and inputs:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>How could I find acceptable values for the emissivity and absorptance of the soil surface. The soil is probably earth/grass but could perhaps be paved.<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>With the input Zone convection coefficient, the comments state this is only used in zone surface mode 1 (energy balance), where is this set? Also, what would be an appropriate value or how could one estimate this?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Same question for Zone radiant temperature<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>The incident short wave radiation (also used in surface mode 1) should be read from the weather file, does this need to go through a radiation processor as in other models? What output of that processor or weather file would be a good
one to use?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">5)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Sky temperature and incident solar radiation – same question<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any suggestions more then welcome!<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"><span lang="NL" style="mso-fareast-language:EN-GB">Henk Witte<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">Groenholland Geo-energysystems<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">Valschermkade 26<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">1059CD Amsterdam<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">T: +31 (0)20 6159050<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">M: +31 (0)628176535<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL" style="mso-fareast-language:EN-GB">E: henk.witte@groenholland.nl<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="NL"><o:p> </o:p></span></p>
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