[TRNSYS-users] TESS Chiller Models data files

[Santiago Naranjo Palacio]

Dear Jeff,

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?

Thanks

On Wed, Aug 1, 2012 at 11:45 AM, <trnsys-users-request at cae.wisc.edu> wrote:

> Send TRNSYS-users mailing list submissions to
>         trnsys-users at cae.wisc.edu
>
> ---------- Forwarded message ----------
> From: Jeff Thornton <thornton at tess-inc.com>
> To: <trnsys-users at cae.wisc.edu>
> Cc:
> Date: Wed, 1 Aug 2012 10:45:41 -0500
> Subject: Re: [TRNSYS-users] TESS Chiller Models
> **
>
> 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.
>
>
>
> Jeff
>
>
>
> ---
>
> Jeff Thornton
>
> *President - TESS LLC*
>
> *22 N. Carroll Street, Madison WI USA 53703*
>
> *Office: (608) 274-2577  Fax: (608) 278-1475*
>
> *www.tess-inc.com*
>
> *E-Mail: thornton at tess-inc.com*
>
>
>
> On 07/31/2012 6:17 pm, Santiago Naranjo Palacio wrote:
>
> Dear TRNSYS-users,
>
> 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?
>
> I would greatly appreciate any input.
>
> Thanks
>
> --
> Santiago Naranjo Palacio, Ph.D. Candidate
> Cornell University, New York
>
>
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>


-- 
Santiago Naranjo Palacio, Ph.D. Candidate
Cornell University, New York
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