[EnergyPlus_Support] Re: Solar collectors: "Branches cannot handle all the flow"

["davylagre" <davylagre@xxxxxxxxx>]

Hello,

Thanks for your post! Unfortunately, it doesn't solve my problem! I put 0 in maximum flow rate for each branch but the same error still occurs!
In your case, have you ever work in solar collectors modeling?



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Abdelali Ait El Cadi <abdelali.aitelcadi@...> wrote:
>
> hello,
> 
> i had the same problem in my hydronic low radiant system, and i solve it by putting 0 in maximum flow rate for each branch, because this field is required for air loops and not for water loops.
> 
> 
> 
> --- On Wed, 5/27/09, davylagre <davylagre@...> wrote:
> 
> From: davylagre <davylagre@...>
> Subject: [EnergyPlus_Support] Solar collectors: "Branches cannot handle all the flow"
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Date: Wednesday, May 27, 2009, 12:13 PM
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>     
>             
>             
> 
> 
>       
>       I'm trying to model solar collectors (again!). I want to model solar collectors as follows:
> 
> oooooooooo
> 
> oooooooooo      (o = solar collector)
> 
> oooooooooo
> 
> oooooo
> 
> 
> 
> When I model collectors as follows:
> 
> oooooooooo
> 
> o
> 
> o
> 
> o
> 
> 
> 
> An error occured :
> 
> ** Severe  ** Branches cannot handle all the flow. Possible causes could be absence of Bypass,
> 
> **   ~~~   ** or components that are manually sized incorrectly.  Consider autosize where possible.
> 
> **   ~~~   ** To fix add a Bypass branch or size the other ACTIVE/PASSIVE branches to equal the loop flow
> 
> **   ~~~   ** Occurs in Plant Loop=DHW LOOP
> 
> **   ~~~   ** Occurs for Splitter=DEMAND SPLITTER
> 
> 
> 
> But, all my components are autosize!! Thus, my installation doesn't have any bypass, so I don't want to model bypass!
> 
> Is there anybody able to solve this problem?
>




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