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Re: [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!

To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!
From: Karen Walkerman <kwalkerman@xxxxxxxxx>
Date: Thu, 17 Mar 2011 09:56:18 -0400
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Hi Ehsan,

I'm not sure what the rules are on this, maybe the EP team can chime
in on this?  However, if you don't need 2 condenser loops, then maybe
it makes sense to try the model with just one and see if this remedies
the node errors?

--
Karen

On 3/17/11, Ehsan Baharvand <ebaharvand@xxxxxxxxx> wrote:
> Thank you Karen.
>
> About your second remark:
>
> The
> Heating --> Heatpump:WaterToWater:EquationFit:Heating
> Cooling --> Heatpump:WaterToWater:EquationFit:Cooling
>
> can have different source inlet & outlet right? Does this also mean that
> each HP
> side can be connected to different Condenser Demand Loop!?
> This is what I have done! So, 2 CondenserLoops have been generated for my
> model
> compared to the E+ example. This is indeed the difference.
>
>
> It may be required to have one single Condenser Loop when using this kind of
> HP
> objects? In that case I need to connect the source side of the HPs through
> the condenser demand side. Is this correct?
>
>
> regards,
> Ehsan
>
>
>
> ________________________________
> From: Karen Walkerman <kwalkerman@xxxxxxxxx>
> To: "EnergyPlus_Support@xxxxxxxxxxxxxxx"
> <EnergyPlus_Support@xxxxxxxxxxxxxxx>
> Sent: Thu, March 17, 2011 1:30:31 PM
> Subject: Re: [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!
>
> Hi Ehsan,
>
> You have quite a few node errors, so I would go back through the
> branches and double check that all your node names are appropriate.
> The other thing that comes to mind is that for this object, the
> example file and help files both reference only one condenser loop,
> which serves the source side of the both w2w heat pumps.  Remember
> that the two objects:
>
> Heating --> Heatpump:WaterToWater:EquationFit:Heating
> Cooling --> Heatpump:WaterToWater:EquationFit:Cooling
>
> Represent the two modes of one piece of equipment in real life. Check
> the example files for details on describing the condenser loop nodes.
>
> Good Luck!
>
> --
> Karen
>
>
>
> On Thursday, March 17, 2011, Ehsan Baharvand <ebaharvand@xxxxxxxxx> wrote:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>      Dear all,
>>
>> I have the following problem when running the simulation. See below .err
>> file!
>>I hope you can help me with this.
>>
>> System information to model
>>
>> 1 X Air Loop
>> - Central AirHandlingUnit
>>
>> 2 X Plant Loops:
>> - Heating --> Heatpump:WaterToWater:EquationFit:Heating
>> - Cooling --> Heatpump:WaterToWater:EquationFit:Cooling
>>
>> 2 X Condenser Loops:
>> - GroundHeatExchanger:Pond connected to the SourceSide of heating plant
>> loop
>> - GroundHeatExchanger:Pond connected to the SourceSide of cooling plant
>> loop
>>
>> Problem
>> I have checked the nodes, connectors, splitters en mixer arrangement and
>> plant
>>and condenser plant loop object. However, the simulation still ends up with
>> node
>>error comments!
>>
>> Question
>> Possibliy Í'm forgetting something.
>> Is there a limit on the length of the node names within EnergyPlus? Or, do
>> the
>>node names require to have sort of known structure?
>> Or, you may think the problem is something else?
>>
>> I hope you can help me further with this. Thanks in advance.
>>
>>
>> Best regards,
>> Ehsan
>>
>>    ************* 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
>>    ** Severe  ** Node Connection Error, Node="NOTPURCHASED COOLING INLET
>> NODE",
>>Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW CND DISTRICTCOOLING
>> SUPPLY
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW CND SUPPLY SIDE BYPASS
>> THE
>>  INLET NODE", Inlet node did not find an appropriate matching "outlet"
>> node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW CND SUPPLY SIDE BYPASS
> BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW CND SUPPLY SIDE OUTLET
>> PIPE
>>THE INLET NODE", Inlet node did not find an appropriate matching "outlet"
>> node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW CND SUPPLY SIDE OUTLET
>> PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="HP CW SOURCESIDE INLET
>> NODE",
>>Inlet node did not find an appropriate matching "outlet"
>>  node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW HPCOOLING SOURCESIDE
>> BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW CND DEMAND SIDE BYPASS
>> THE
>>INLET NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW CND DEMAND SIDE BYPASS
> BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW CND DEMAND SIDE OUTLET
>> PIPE
>>THE INLET NODE", Inlet node did not find an appropriate matching "outlet"
>> node.
>>    **   ~~~   ** If this is an outdoor
>>  air inlet node, it must be listed in an OutdoorAir:Node or
>> OutdoorAir:NodeList
>>object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW CND DEMAND SIDE OUTLET
>> PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="NOTPURCHASED HEATING INLET
>> NODE",
>>Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW CND DISTRICTCOOLING
>> SUPPLY
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW CND SUPPLY SIDE BYPASS
>> THE
>>INLET NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList
>>  object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW CND SUPPLY SIDE BYPASS
> BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW CND SUPPLY SIDE OUTLET
>> PIPE
>>THE INLET NODE", Inlet node did not find an appropriate matching "outlet"
>> node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW CND SUPPLY SIDE OUTLET
>> PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="HP HW SOURCESIDE INLET
>> NODE",
>>Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH,
>>  Name=HW HPHEATING SOURCESIDE BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW CND DEMAND SIDE BYPASS
>> THE
>>INLET NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW CND DEMAND SIDE BYPASS
> BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW CND DEMAND SIDE OUTLET
>> PIPE
>>THE INLET NODE", Inlet node did not find an appropriate matching "outlet"
>> node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW CND DEMAND SIDE OUTLET
>> PIPE
>>BRANCH
>>    ** Severe  **
>>  Node Connection Error, Node="HP CW LOADSIDE INLET NODE", Inlet node did
>> not
>>find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW HPCOOLING SUPPLY BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW SUPPLY SIDE BYPASS THE
>> INLET
>>NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW SUPPLY SIDE BYPASS
>> BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW SUPPLY SIDE OUTLET PIPE
>> THE
>>INLET NODE", Inlet node did not find an appropriate
>>  matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW SUPPLY SIDE OUTLET PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="AHU COOLING COIL CHW INLET",
>>
>>Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=AHU COOLING COIL CHW BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW DEMAND SIDE BYPASS THE
>> INLET
>>NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet
>>  node, it must be listed in an OutdoorAir:Node or OutdoorAir:NodeList
>> object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW DEMAND SIDE BYPASS
>> BRANCH
>>    ** Severe  ** Node Connection Error, Node="CW DEMAND SIDE OUTLET PIPE
>> THE
>>INLET NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=CW DEMAND SIDE OUTLET PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="HP HW LOADSIDE INLET NODE",
>> Inlet
>>node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>  **   ~~~   ** Reference Object=BRANCH, Name=HW HPHEATING SUPPLY BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW SUPPLY SIDE BYPASS THE
>> INLET
>>NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW SUPPLY SIDE BYPASS
>> BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW SUPPLY SIDE OUTLET PIPE
>> THE
>>INLET NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW SUPPLY SIDE OUTLET PIPE
>>  BRANCH
>>    ** Severe  ** Node Connection Error, Node="AHU HEATING COIL HW INLET",
>> Inlet
>>node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=AHU HEATING COIL HW BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW DEMAND SIDE BYPASS THE
>> INLET
>>NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW DEMAND SIDE BYPASS
>> BRANCH
>>    ** Severe  ** Node Connection Error, Node="HW DEMAND SIDE OUTLET PIPE
>> THE
>>INLET
>>  NODE", Inlet node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=BRANCH, Name=HW DEMAND SIDE OUTLET PIPE
>>BRANCH
>>    ** Severe  ** Node Connection Error, Node="AHU HEATING COIL HW INLET",
>> Inlet
>>node did not find an appropriate matching "outlet" node.
>>    **   ~~~   ** If this is an outdoor air inlet node, it must be listed
>> in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=COIL:HEATING:WATER, Name=AHU HEATING
>> COIL
>>    ** Severe  ** Node Connection Error, Node="AHU COOLING COIL CHW INLET",
>>
>>Inlet node did not find an appropriate matching "outlet" node.
>>    **
>>  ~~~   ** If this is an outdoor air inlet node, it must be listed in an
>>OutdoorAir:Node or OutdoorAir:NodeList object.
>>    **   ~~~   ** Reference Object=COIL:COOLING:WATER, Name=AHU COOLING
>> COIL
>>
>>    ** Severe  ** Same component name and type has differing Node Names.
>>    **   ~~~   **    Component:
>> HEATPUMP:WATERTOWATER:EQUATIONFIT:COOLING,
>>name=HPCOOLING
>>    **   ~~~   **    Nodes, inlet: HP CW SOURCESIDE INLET NODE, outlet: HP
>> CW
>>SOURCESIDE OUTLET NODE
>>    **   ~~~   **  & Nodes, inlet: HP CW LOADSIDE INLET NODE, outlet: HP CW
>>
>>LOADSIDE OUTLET NODE
>>    **   ~~~   **    Node Types:   UNDEFINED & UNDEFINED
>>    ** Severe  ** Same component name and type has differing Node Names.
>>    **   ~~~   **    Component:
>> HEATPUMP:WATERTOWATER:EQUATIONFIT:HEATING,
>>name=HPHEATING
>>    **   ~~~   **
>>  Nodes, inlet: HP HW SOURCESIDE INLET NODE, outlet: HP HW SOURCESIDE
>> OUTLET
>>NODE
>>    **   ~~~   **  & Nodes, inlet: HP HW LOADSIDE INLET NODE, outlet: HP HW
>>
>>LOADSIDE OUTLET NODE
>>    **   ~~~   **    Node Types:   UNDEFINED & UNDEFINED
>>
>>
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>
>
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References:
- [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!
  - From: Ehsan Baharvand
- Re: [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!
  - From: Karen Walkerman
- Re: [EnergyPlus_Support] Heatpump W-2-W Model & Node fatal Error!
  - From: Ehsan Baharvand

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