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[EnergyPlus_Support] Re: plant flows do not resolve -- splitter inlet flow does not match mixer outlet f

Hi All,

I made a small correction to my question.

I am trying to model variable flow chiller system. Eventhough I made all branches ACTIVE except ByPass branches, it throws a fatal exception. Would greatly
appreciate your help.

** ~~~ ** This loop might be helped by a bypass.
** Severe ** plant flows do not resolve -- splitter inlet flow does not
match mixer outlet flow
** ~~~ ** Occurrence info=NEXTDAYSIM, 08/06 06:25 - 06:26
** ~~~ ** PlantLoop name= CHILLER1 CHILLED WATER LOOP
** ~~~ ** Plant Connector:Mixer name= CHILLER1 CHW SUPPLY MIXER
** ~~~ ** Mixer outlet mass flow rate= 131.191187 {kg/s}
** ~~~ ** Plant Connector:Splitter name= CHILLER1 CHW SUPPLY SPLITTER
** ~~~ ** Splitter inlet mass flow rate= 135.163143 {kg/s}
** ~~~ ** Check control type for branches between, components that
request flow should be ACTIVE control type
** Fatal ** Simulation terminated because of problems in plant flow
resolver
...Summary of Errors that led to program termination:
..... Reference severe error count=1
..... Last severe error=plant flows do not resolve -- splitter inlet flow
does not match mixer outlet flow
*************
************* ===== Recurring Error Summary =====
************* The following recurring error messages occurred.
*************
************* ** Warning ** PlantFlowResolver: Continuing...Branch flow
rates out of bounds, for Plant Loop=CHILLER1 CHILLED WATER LOOP, Branch=CHILLER1
CHW SUPPLY OUTLET BRANCH
************* ** ~~~ ** This error occurred 6240 times.
************* ** ~~~ ** Max=160.000043 Min=135.163143
*************
************* ** Warning ** PlantFlowResolver: Continuing...Branch flow
rates out of bounds, for Plant Loop=CHILLER1 CONDENSER WATER LOOP,
Branch=FANCOILTOWER CNDW BRANCH
************* ** ~~~ ** This error occurred 2828 times.
************* ** ~~~ ** Max=676.115003 Min=676.115003
*************
************* EnergyPlus Terminated--Fatal Error Detected. 9085 Warning; 1
Severe Errors; Elapsed Time=00hr 14min 11.20sec


Thanks
-Ven



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "eplusven" <eplusven@...> wrote:
>
> Hi All,
> 
> I am trying to model variable flow chiller system. Eventhough I made all branches except BYPass branches, it throws a fatal exception. Would greatly appreciate your help. 
> 
>  **   ~~~   ** This loop might be helped by a bypass.
>    ** Severe  ** plant flows do not resolve -- splitter inlet flow does not match mixer outlet flow
>    **   ~~~   **  Occurrence info=NEXTDAYSIM, 08/06 06:25 - 06:26
>    **   ~~~   ** PlantLoop name= CHILLER1 CHILLED WATER LOOP
>    **   ~~~   ** Plant Connector:Mixer name= CHILLER1 CHW SUPPLY MIXER
>    **   ~~~   ** Mixer outlet mass flow rate= 131.191187 {kg/s}
>    **   ~~~   ** Plant Connector:Splitter name= CHILLER1 CHW SUPPLY SPLITTER
>    **   ~~~   ** Splitter inlet mass flow rate= 135.163143 {kg/s}
>    **   ~~~   ** Check control type for branches between, components that request flow should be ACTIVE control type
>    **  Fatal  **  Simulation terminated because of problems in plant flow resolver
>    ...Summary of Errors that led to program termination:
>    ..... Reference severe error count=1
>    ..... Last severe error=plant flows do not resolve -- splitter inlet flow does not match mixer outlet flow
>    *************
>    ************* ===== Recurring Error Summary =====
>    ************* The following recurring error messages occurred.
>    *************
>    *************  ** Warning ** PlantFlowResolver: Continuing...Branch flow rates out of bounds, for Plant Loop=CHILLER1 CHILLED WATER LOOP, Branch=CHILLER1 CHW SUPPLY OUTLET BRANCH
>    *************  **   ~~~   **   This error occurred 6240 times.
>    *************  **   ~~~   **   Max=160.000043  Min=135.163143
>    *************
>    *************  ** Warning ** PlantFlowResolver: Continuing...Branch flow rates out of bounds, for Plant Loop=CHILLER1 CONDENSER WATER LOOP, Branch=FANCOILTOWER CNDW BRANCH
>    *************  **   ~~~   **   This error occurred 2828 times.
>    *************  **   ~~~   **   Max=676.115003  Min=676.115003
>    *************
>    ************* EnergyPlus Terminated--Fatal Error Detected. 9085 Warning; 1 Severe Errors; Elapsed Time=00hr 14min 11.20sec
> 
> 
> Thanks
> -Ven
>




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