[EnergyPlus_Support] Re: FW: HW pri-sec loop using Heat exchanger?

["miaoworld" <eric.yang@xxxxxxxxxxxxxx>]

Thanks, Brent.

I tried to connect a primary and secondary hot water loop with water 
heater:mixed object to have two different supply set point.

To my surprise, the program crashed without popping up enough error 
indications.  Anyone has the similar experience? Any suggestions will 
be appreciated ASAP.  The file "5ZoneVAV-Pri-SecLoop-hotwater.idf" is 
uploaded to the problem submittal for review.

The only error is during warming up calculation:
"Initializing New Environment Parameters
Warming up {1}
forrtl: error (65): floating invalid".

Thanks a lot.

Eric (Miao)


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" 
<brent_griffith@...> wrote:
>
> Yes, the Water Heater:Mixed can probably be used for this.  
> 
>  
> 
> ________________________________
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx
> [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of miaoworld
> Sent: Monday, January 29, 2007 4:51 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] FW: HW pri-sec loop using Heat 
exchanger?
> 
>  
> 
> A modification here: Two loops are connected by a shell & tube heat 
> exchanger. 
> 
> Based on previous discussion, WATER HEATER:MIXED seems also a good 
> choice?
> 
> Any suggestions will be appreciated.
> 
> Eric(Miao)
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx
> <mailto:EnergyPlus_Support%40yahoogroups.com> , "miaoworld" 
> <eric.yang@> wrote:
> >
> > Greetings,
> > 
> > I have a primary and secondary hot water loop with different 
supply 
> > temperature setpoint. Two loops are connected by a shell & tube 
> heat exchanger. 
> > 
> > Can I use "Heat Exchanger:Plate: Free Cooling" instead to connect 
> > primary and secondary hot water loop? I know it is initially used 
> for 
> > condenser loop.
> > 
> > Thanks.
> > 
> > Eric (Miao)
> >
> 
>  
> 
> 
> 
> [Non-text portions of this message have been removed]
>




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