Dear Jeff,<br>
<br>
I am looking to finding a data set where the outlet chiller temperature goes down to at least -6C (I am modeling an Ice Storage unit) and the ambient
temperature is goes down to at least 10C. Do you happen to have a data set already constructed for such conditions? <br><br>Thanks<br><br><div class="gmail_quote">On Wed, Aug 1, 2012 at 11:45 AM, <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu" target="_blank">trnsys-users-request@cae.wisc.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send TRNSYS-users mailing list submissions to<br>
<a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
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---------- Forwarded message ----------<br>From: Jeff Thornton <<a href="mailto:thornton@tess-inc.com">thornton@tess-inc.com</a>><br>To: <<a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a>><br>
Cc: <br>Date: Wed, 1 Aug 2012 10:45:41 -0500<br>Subject: Re: [TRNSYS-users] TESS Chiller Models<br><u></u>
<div>
<p>The chiller performance data files were created from published catalog data from manufacturer's web sites. In some cases the data files represent a single manufacturer/size and in other cases they represent an average across a range of manufacturers and sizes - it depends on the data file that you have chosen. A "rating condition" is chosen and then all other data points are then normalized to the capacity and power at the rating condition. That's why the capacity and power consumption supplied to the proforma model should correspond to the condition in the data file where the normalized ratios are 1. Besides the simple set supplied with the TESS Library install, we have dozens of other data files if you're looking for something in particular.</p>
<p> </p>
<p>Jeff</p>
<p> </p>
<div>
<pre>---</pre>
<p>Jeff Thornton</p>
<p><i>President - TESS LLC</i></p>
<p><i>22 N. Carroll Street, Madison WI USA 53703</i></p>
<p><i>Office: <a href="tel:%28608%29%20274-2577" value="+16082742577" target="_blank">(608) 274-2577</a> Fax: <a href="tel:%28608%29%20278-1475" value="+16082781475" target="_blank">(608) 278-1475</a></i></p>
<p><i><a href="http://www.tess-inc.com" target="_blank">www.tess-inc.com</a></i></p>
<p><i>E-Mail: <a href="mailto:thornton@tess-inc.com" target="_blank">thornton@tess-inc.com</a></i></p>
<p> </p>
</div>
<p>On 07/31/2012 6:17 pm, Santiago Naranjo Palacio wrote:</p>
<blockquote type="cite" style="padding-left:5px;border-left:#1010ff 2px solid;margin-left:5px;width:100%">
<p>Dear TRNSYS-users,<br><br>I have been using both of the chiller models supplied by TESS (Type 655 and 666) and I have a couple of questions regarding the data files needed to use them. How were exactly these numbers obtained (the Capacity Ratio and COP ratio)? I am trying to use the chillers for different chilled water temperature settings and ambient temperatures and I was wondering how to do this. If I understand the model correctly, this means that these chillers only approximate power consumption based on the data provided and there is no other criteria. Correct?<br>
<br>I would greatly appreciate any input.<br><br>Thanks<br clear="all"><br>-- <br>Santiago Naranjo Palacio, Ph.D. Candidate<br>Cornell University, New York<br><br></p>
</blockquote>
</div>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Santiago Naranjo Palacio, Ph.D. Candidate<br>Cornell University, New York<br><br>