[Bldg-sim] Chiller Improvement Evaluation
RobertWichert
robert at wichert.org
Tue Feb 11 07:08:20 PST 2014
For that you need to model the building with local weather data, Sebastian.
Robert
============================================
On 2/11/2014 6:52 AM, Sebastian Carrizo wrote:
> My biggest problem right now is how to develop an hourly cooling load
> profile from one-a-day measurements taken in the field. Is there any
> standard/general daily cooling profiles that I could use?
>
> Thanks,
> Sebastian
>
>
> On Tue, Feb 11, 2014 at 9:47 AM, RobertWichert <robert at wichert.org
> <mailto:robert at wichert.org>> wrote:
>
> Dear Sebastian,
>
> I start with kW/ton ratings at AHRI conditions from the
> manufacturer. Those are good inputs into the software. I use
> Energy Pro, but I believe most software can take that as input.
>
> It is theoretically possible to estimate performance with
> evaporative pre-coolers if you have reliable effectiveness and
> chiller data.
>
> Most programs will allow VFD or multi-speed pumps as well.
>
>
> Robert Wichert
>
>
>
>
> =================================================
>
>
>
> On 2/10/2014 1:56 PM, Sebastian Carrizo wrote:
>> Hi all,
>>
>> I'm trying to assess possible energy savings from improving
>> different areas of a chiller plant (cooling towers, adding free
>> cooling, VFDs, controls). Currently all the information I have is
>> a snapshot of the chiller plant performance at 2pm every day of
>> the summer.
>>
>> Is there a simple way to evaluate kWh saved? If modelling is the
>> best option which software is the best for this kind of analysis?
>>
>> Thanks for any help,
>> Sebastian
>>
>> --
>>
>> *Juan Sebastian Carrizo*
>> M.Eng Sustainable Energy | B.Eng Industrial Engineering
>>
>> (c) 647-225-2243 <tel:647-225-2243> |
>> juan.carrizo at alumni.carleton.ca
>> <mailto:juan.carrizo at alumni.carleton.ca>
>>
>>
>>
>>
>>
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>
>
> --
> Robert P Wichert P.Eng. Inc.
> LEED AP, HERS II, CEA
> +1 916 966 9060 <tel:%2B1%20916%20966%209060>
> FAX+1 916 966 9068 <tel:%2B1%20916%20966%209068>
>
>
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>
>
> --
>
> *Juan Sebastian Carrizo*
> M.Eng Sustainable Energy | B.Eng Industrial Engineering
>
> (c) 647-225-2243 | juan.carrizo at alumni.carleton.ca
> <mailto:juan.carrizo at alumni.carleton.ca>
>
>
>
--
Robert P Wichert P.Eng. Inc.
LEED AP, HERS II, CEA
+1 916 966 9060
FAX +1 916 966 9068
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