Re: [EnergyPlus_Support] HVAC BESTTEST [2 Attachments]

["Wenting Ding dingwenting@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Linda,

 

The following is the full error messages. For your reference, I attached the idf file also(original and updated version). Thank you.

 

 

Program Version,EnergyPlus-Windows-64 8.1.0.009, YMD=2014.10.17 10:12,IDD_Version 8.1.0.009
   ** Warning ** Timestep: Requested number (1) is less than the suggested minimum of 4.
   **   ~~~   ** Please see entry for Timestep in Input/Output Reference for discussion of considerations.
   ** Warning ** Weather file location will be used rather than entered (IDF) Location object.
   **   ~~~   ** ..Location object=UNKNOWN
   **   ~~~   ** ..Weather File Location=Miami/Int'l Airport FL USA TMY--12839 WMO#=722020
   **   ~~~   ** ..due to location differences, Latitude difference=[2.00E-002] degrees, Longitude difference=[2.00E-002] degrees.
   **   ~~~   ** ..Time Zone difference=[0.0] hour(s), Elevation difference=[100.00] percent, [2.00] meters.
   ** Severe  ** This building has no thermal mass which can cause an unstable solution.
   **   ~~~   ** Use Material object for all opaque material definitions except very light insulation layers.
   ** Warning ** The Standard Ratings is calculated for Coil:Cooling:DX:SingleSpeed = ZONE1WINDACDXCOIL but not at the AHRI test condition due to curve out of bound.
   **   ~~~   **  Review the Standard Ratings calculations in the Engineering Reference for this coil type. Also, use Output:Diagnostics, DisplayExtraWarnings for further guidance.
   ************* Testing Individual Branch Integrity
   ************* All Branches passed integrity testing
   ************* Testing Individual Supply Air Path Integrity
   ************* All Supply Air Paths passed integrity testing
   ************* Testing Individual Return Air Path Integrity
   ************* All Return Air Paths passed integrity testing
   ************* No node connection errors were found.
   ************* Beginning Simulation
   ************* Simulation Error Summary *************
   ************* EnergyPlus Warmup Error Summary. During Warmup: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Sizing Error Summary. During Sizing: 0 Warning; 0 Severe Errors.
   ************* EnergyPlus Completed Successfully-- 3 Warning; 1 Severe Errors; Elapsed Time=00hr 00min  0.97sec

2014-10-17 10:21 GMT+09:00 Linda Lawrie linda@xxxxxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx>:

 

That doesn't look like a severe error -- why not paste in the full .err
file?

On 2014-10-16 19:19, dingwenting@xxxxxxxxx [EnergyPlus_Support] wrote:
> Hi,
>
> I got the CE100.idf from others and it was the old version. I updated
> it to version 8.1 and ran it. but got a severe error.
>
> MATERIAL:Regular-R,
> INSULATION-EXT, ! Material Name
> VerySmooth, ! Roughness
> 50.00 , ! Thermal Resistance {m2-K/W}
> 0.9000 , ! Thermal Absorptance
> 0.1000 , ! Solar Absorptance
> 0.1000 ; ! Visible Absorptance
>
> MATERIAL:Regular-R,
> INSULATION-INT, ! Material Name
> VerySmooth, ! Roughness
> 50.00 , ! Thermal Resistance {m2-K/W}
> 0.9000 , ! Thermal Absorptance
> 0.6000 , ! Solar Absorptance
> 0.6000 ; ! Visible Absorptance
>
> CONSTRUCTION,
> LTWALL, ! Construction Name
> ! Material layer names follow:
> INSULATION-EXT,
> INSULATION-INT;
>
> The error message is
>
> This building has no thermal mass which can cause an unstable
> solution.
> ** ~~~ ** Use Material object for all opaque material definitions
> except very light insulation layers.
>
> In Case E100 the wall construction is conposed of only two insulation
> layers.
>
> Who can give me some advice?
>
> Thank you very much.
>
>
>

> Links:
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> [5]
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Posted by: Wenting Ding <dingwenting@xxxxxxxxx>

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Attachment not found:
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