<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Sadjad,</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Absolutely that's how TRNSYS works. TRNSYS models take time independent values called PARAMETERS and time-dependent values called INPUTS together to calculate the OUTPUTS from the model. The inputs can be from another model, set to a constant value, read from an external file, set by a function etc.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">We have several "heating unit" models and they differ on how they calculate the performance. Most read a performance data file that returns a value based on the inlet operating conditions.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Jeff</div><div id="AppleMailSignature">TESS LLC<br><br>Sent from my iPhone</div><div><br>On Nov 7, 2017, at 3:40 AM, Seyyed Tajdaran via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Hello all<div><br></div><div>I am looking into use TRNSYS for dynamic simulation. However, I am struggling to find out if the software actually works in a dynamic condition. To be specific I would like to know if the efficiency of a heating unit is calculated as a function of the relevant parameters (i.e. time, temperature, pressure)??? <br><div><div><br></div><div><br></div><div>Warm regards,</div><div>Sadjad</div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr" style="font-size:12.8px"><b style="font-size:12.8px">Sadjad Tajdaran</b><br><span style="font-size:12.8px">PhD Candidate | Research Assistant</span><br><br><font size="1">Oxford Brookes University, School of Architecture, Faculty of Technology Design and Environment</font></div><div style="font-size:12.8px"><font size="1">Architectural Engineering Group</font></div><div style="font-size:12.8px"><font size="1">JP203, </font><span style="font-size:x-small">John Payne Building,</span><span style="font-size:x-small">Headington Campus, Gipsy Lane, Oxford, UK, OX3 0BP</span></div></div></div>
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