<div dir="ltr"><div dir="ltr">Greetings to everybody,<div><div>I tried to understand how TRNFLOW works starting from the study of the sample model available in TRNSYS software.<br></div><div><br></div><div>One of the main problems I encountered was to understand the reference heights shown in Figure 1 circled in red. The line highlighted in orange with the initials "WI_" (Figure 1) indicate the type of connection "large opening" which correspond to the openings in green in Figure 2, which in this case represents a "hole in the floor".</div><div><br></div><div>I cannot, therefore, understand which distances are indicated as FROM-NODE and TO-NODE. (1.6 and 1.2 in the example). I have reported the text of the guide above Figure 3 which refers precisely to these distances. I, therefore, write to you asking if you can kindly help me understand how to interpret the heights indicated above. </div><div>Best regards</div><div class="gmail_quote"><div lang="IT"><div class="gmail-m_6281230692789829590WordSection1"><p class="MsoNormal"> <u></u></p>
<p class="MsoNormal"><img width="540" height="412" style="width: 5.625in; height: 4.2962in;" id="gmail-m_6281230692789829590Immagine_x0020_4" src="cid:169745fed2a6d620e991" alt="응ⅡIll喜
:로昌들昌=
=§|터터타들뎧
-돈뗨넣g궆궆 con annotazioni a penna con annotazioni a penna"></p><p class="MsoNormal"> <b>Figura 1 </b></p><p class="MsoNormal"><img style="margin-right: 0px;" id="gmail-m_6281230692789829590Immagine_x0020_6" src="cid:169745fed2a381be3f72" alt="n i versiti
Crack definition
Large
opening
2m x 2m
--00, 2m" width="471" height="337"><u></u><u></u></p>
<p class="MsoNormal"> <b> </b></p><p class="MsoNormal"><b>Figura 2<u></u><u></u></b></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p style="margin:0cm 0cm 0.0001pt">Here the link <span style="background:yellow"> height on the side of the “From-Node” (“To-Node”) has to be defined</span>. This height is measured from different levels depending on the selected node and its category: If it is an external node or a constant pressure node the link height is measured from the building reference level. I<b><span style="background:yellow">n thermal airnodes and auxiliary nodes the link height is measured from the corresponding node reference height which is defined in the node data</span></b> (see figure 3.2). For a large opening the link height is measured to the bottom of the opening. With different absolute heights on the from and the to side a link is not horizontal that means the link itself acts as a vertical shaft. This is possible with all link types except with large openings.</p>
<p style="margin:0cm 0cm 0.0001pt"><u></u> <u></u></p>
<p class="MsoNormal" style="margin-left:106.2pt;text-indent:35.4pt"><img width="541" height="269" style="width: 5.6388in; height: 2.8055in;" id="gmail-m_6281230692789829590Immagine_x0020_5" src="cid:169745fed2af5105ac63" alt="External node
or const. pressure
Thermal
airnode
Link
height on
FROM-s•ide
LINK
Link height on TO-side
TO-NODE
Zone reverence
height
FRO M -
NODE
Building reference
level
Figure 3.2: Definition of the airnode height and the link height"><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:106.2pt;text-indent:35.4pt"><b> Figura 3</b></p><p class="MsoNormal"><u></u></p></div></div></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><pre cols="72" style="white-space:pre-wrap"><div style="color:rgb(34,34,34);white-space:normal;font-family:Helvetica;font-size:medium"><img src="http://www.unical.it/portale/images/logo_unical.png" alt="Logo Unical" style="white-space: pre-wrap; font-family: arial, sans-serif; font-size: 12.8px;" width="200" height="44"></div><div style="white-space:normal"><font><span style="text-align:-webkit-auto;border-collapse:separate"><div style="overflow-wrap: break-word;"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><div><b style="font-weight:bold"><font><span style="text-align:-webkit-auto;border-collapse:separate"></span></font></b><font><div style="overflow-wrap: break-word;"><b style="font-weight:bold"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><b style="font-size:10.4px;font-family:monospace"><span style="text-align:-webkit-auto;border-collapse:separate"></span></b></span></span></span><span style="font-size:12px;font-family:Helvetica"><font color="#134f5c"><a href="http://l.it/" target="_blank"><br></a></font></span></span></span></span></b><div style="overflow-wrap: break-word;"><b style="font-weight:bold"><b><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><b><span style="text-align:-webkit-auto;border-collapse:separate"></span></b></span></span></span></span></span></span></b></b><div style="overflow-wrap: break-word;"><b style="font-weight:bold"></b><pre cols="72" style="white-space:pre-wrap"><b style="font-weight:bold"><div style="font-weight:400;white-space:normal"><b><span style="text-align:-webkit-auto;border-collapse:separate"><div style="overflow-wrap: break-word;"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><b><span style="text-align:-webkit-auto;border-collapse:separate"><div style="overflow-wrap: break-word;"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><span style="border-collapse:separate"><font color="#ff0000" size="2" face="arial, helvetica, sans-serif"><b>Domenico Mazzeo (Ingegnere Energetico)</b><font> </font></font></span></span></span></span></span></span></div></span></b></span></span></span></span></span></span></div></span></b></div><div style="font-weight:400;white-space:normal"><font size="2" face="arial, helvetica, sans-serif"><b><font color="#0000ff">Ph.D. Ing. 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