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Damien,<br>
The easiest way to add or removed energy from a liquid stream is
with the equation Tout = Tin + q/mdot/Cp.<br>
<br>
I'd save the Excel data into a text file, read it with a Type9
data reader and pass the result into the equation. Energy addition
to the liquid stream would be a positive value of q. Energy removal
would be a negative value.<br>
Best,<br>
David<br>
<br>
<br>
On 3/30/2012 08:15, Damien Casetta wrote:
<blockquote
cite="mid:CA+b-pK7q3vrNOXT3vdqCeUASzbC9MFKdMTWx96MVuRo99ZxH7Q@mail.gmail.com"
type="cite">Hi,
<div><br>
</div>
<div>I am currently working on a project at Building Services
Engineering, Chalmers, Göteborg. Basically, I am carrying
Thermal Response Tests with borehole heat exchangers and using
TRNSYS to calibrate the DST model. </div>
<div><br>
</div>
<div>My question is by far more basic. With standard components,
what is the easiest way to inject a variable heat rate to a
circulating fluid? The idea would be to import hourly heating
power from Excel. It seems that the auxiliary heater operates
with at maximum heating rate only (on/off operation).<br>
<br>
Thanks in advance for your help,<br>
<br>
Regards, <br clear="all">
<div><br>
</div>
-- <br>
<div><font color="#999999"><b>Damien Casetta</b></font></div>
<div><br>
</div>
<div><font color="#009900"><span
style="font-family:sans-serif;font-size:13px;line-height:19px;background-color:rgb(255,255,255)"><b>Chalmers
University of Technology </b></span>| Energy and
Environment</font><span style="color:rgb(153,153,153)"> </span><font
color="#999999">| Exchange student</font></div>
<div><font color="#3366FF"><b>INSA Lyon</b> Génie Energétique et
Environnement</font> <span style="color:rgb(153,153,153)">|
Elève ingénieur</span> </div>
<div> <span style="color:rgb(153,153,153)"> <br>
+46.7.60.66.31.45<br>
</span></div>
<div><font color="#999999">+33.6.71.78.03.75</font></div>
<br>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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