[BLDG-SIM] Mysterious space heating load spikes - RESOLVED

[Randy Wilkinson]

Thanks to all,

Brody and at least one other suggested using a larger GSHP ground loop.  
That fixed it.  Thanks for your help.

Randy

Brody Wilson wrote:
> Randal,
>     I just ran into this issue myself, it looks like the temperature 
> alarms on your GSHP Water loop are alarming and shutting off your 
> equipment, then the loop returns to non alarm temps, then the 
> equipment cycles back on, etc.
> It looks like you're alarming on both the high and low sides, so I'm 
> guessing that whatever heat source or heat sink you have are too 
> small. If you have a ground source heat exchanger make it bigger and 
> see if that fixes it.
>
> Let me know if that's it.
> --
> Brody Wilson
>
> Phone: 314.644.2629
> Fax:   314.644.0691
> Mobil: 314.651.8319
>
> Energy Solutions Inc.
> P.O. Box 300354
>
> St. Louis, MO 63130
>
> brody at energysolutions-stl.com <mailto:brody at energysolutions-stl.com> 
>
> www.energysolutions-stl.com <http://www.energysolutions-stl.com>
>
>
>
>
> On 2/9/07, *Randy Wilkinson* <randy at hvacware.net 
> <mailto:randy at hvacware.net>> wrote:
>
>     Hi All,
>
>     Our eQuest model has very strange looking spikes
>     <http://www.lseng.com/%7Erandyw/stegasaurus.pdf> in the space
>     heating load profile.  We can't figure out why they would be
>     there.  I put a PDF of the Monthly Electric Peak Load Profile on
>     my web page <http://www.lseng.com/%7Erandyw/>.  The is also a PDF
>     of the complete simulation output
>     <http://www.lseng.com/%7Erandyw/simulationoutput.pdf> if that
>     helps.  We did a sanity check of inputs...it still looks insane. 
>     This model was done all with DD wizard inputs.  Anybody got any
>     ideas? TIA.
>
>     http://www.lseng.com/~randyw/ <http://www.lseng.com/%7Erandyw/>
>     http://www.lseng.com/~randyw/stegasaurus.pdf
>     <http://www.lseng.com/%7Erandyw/stegasaurus.pdf>
>     http://www.lseng.com/~randyw/simulationoutput.pdf
>     <http://www.lseng.com/%7Erandyw/simulationoutput.pdf>
>
>     Randy
>     -- 
>     Randall C. Wilkinson
>     L&S Engineering
>     Spokane, WA
>
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