[Equest-users] Unusual QC Errors

[Lukas Hovee]

Luka-

The errors that you have attached below are not necessarily related to 
the reason your simulation is failing.  The QC reporting mechanism 
relies on results generated during the course of a successful 
simulation, and the fact that you are unable to a simulation is the 
reason for some of the nonsensical numbers in the QC reporting results.  
Check the .sim file for information on why the simulation won't run.

-Luke

Lukas Hovee
Madison Engineering, PS
444 NE Ravenna Blvd, Suite 406
Seattle, WA 98115

On 3/9/2010 11:19 AM, Matutinovic, Luka wrote:
>
> Hello All,
>
> My simulation won't run because of unusual errors that I've never seen 
> before, but that I picked up when looking at the details of the QC report:
>
> Here is a summary of the errors.  If anyone has seen this before and 
> may have ideas about what's causing it, I'd really appreciate the help.
>
> I haven't attached the .pd2 and .inp file due to file size, but I can 
> forward them to anyone who's interested in taking a peek.
>
> Many thanks,
>
> Luka
>
> ====================================================================
>
> 4) Hours of Operation
>
>             Hours of Operation
>
>                         Fan vs. Occupancy Hours
>
>                                                 The average occupancy 
> / fan operation ratio for the building is -72480000.00 and appears 
> high (error above 1.75, see PS-E & SS-C reports).
>
>                         Fan vs. Lighting Operating Hours
>
>                                                 The average hours of 
> light operation / fan operation ratio for the building is 0 and 
> appears low (error below 0.25, see PS-E & SS-C reports).
>
>                         Fan vs. Equipment Operating Hours
>
>                                                 The average hours of 
> plug load operation / fan operation ratio for the building is 0 and 
> appears low (error below 0.25, see PS-E & SS-C reports).
>
> 5) HVAC Equipment Descriptions
>
>             Air-Side Checks
>
>                         CFM/ton of cooling
>
>                                                 The supply air flow 
> for system 'E1 Sys1 (PIU) (B)' is 120000.0 cfm/ton and appears high 
> (see SV-A report).
>
>             User Input Equipment Performance Curves
>
>                         Curve coefficients sum to 1
>
>                                                 The sum of the 
> coefficients for the 'ForCurve w Inlet Vanes FPLR' curve is 0.99 and 
> does not equal 1 (check Curve Inputs for errors).
>
> 6) Zone Control and Equipment Sizing
>
>             Primary Equipment Unable to Meet Loads
>
>                         Chillers
>
>                                                 Chillers on Loop: 
> 'Chilled Water Loop' have a total Capacity to Load Ratio of -1.00 and 
> may be undersized (Error: Ratio <   0.90)
>
> Total Chiller Capacity on Loop = -2 (Btu/hr)
>
> Peak CHW Loop Load = -1 (Btu/hr)
>
> Chiller: 'Chiller1a (ElCentHerm)' capacity = -1 (Btu/hr)
>
>                                                 Chiller: 'Chiller1b 
> (ElCentHerm)' capacity = -1 (Btu/hr)
>
>                         Boilers
>
>                                                 Boilers on Loop: 'Hot 
> Water Loop' have a total Capacity to Load Ratio of -0.00 and may be 
> undersized (Error: Ratio < 0.90)
>
> Total Boiler Capacity on Loop = -2 (Btu/hr)
>
> Peak HW Loop Load = -1 (Btu/hr)
>
> Boiler: 'Boiler1a (HWNatDrft)' capacity = -1 (Btu/hr)
>
>                                                 Boiler: 'Boiler1b 
> (HWNatDrft)' capacity = -1 (Btu/hr)
>
>             Circulation Loop Overload
>
>                         Circulation Loop Overload
>
> 7) HVAC Load & Performance Results
>
>             Monthly Pattern of HVAC Loads
>
>                         Heating Coil Loads
>
>                                                 System 'E1 Sys1 (PIU) 
> (B)' has a high Summer/Winter heating coil load ratio of 1.0 (error 
> over 0.2, see SS-D report).
>
>             Primary HVAC Equipment Performance
>
>                         Average Chiller COP
>
>                                                 'Chiller1a 
> (ElCentHerm)' Average Yearly COP (Total Annual Output/Total Annual 
> Input) = -1.0 and may be low (Error: Ratio <= 1).
>
>                                                 'Chiller1b 
> (ElCentHerm)' Average Yearly COP (Total Annual Output/Total Annual 
> Input) = -1.0 and may be low (Error: Ratio <= 1).
>
>                         Average Cooling Tower COP
>
>                                                 'Open Tower' Average 
> Yearly COP (Total Annual Output/Total Annual Input) = -1.0 may be low 
> (Error: Ratio <= 1).
>
>
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