[EnergyPlus_Support] Re: EnergyPlus V4.0 Released

["Zuo" <mingming_zuo@xxxxxxxxx>]

Linda,
Thank you for your reply! Can I just come to a conclusion that now a condenser loop almost has the same control and configuration restrictions? For example, loop pump and branch pump are all possible configurations and headered pumps can be applied in a condenser loop?

Zuo Mingming

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> It's not something the user will readily see except in better and 
> more consistent results.
> 
> Quoting from the feature proposal document:
> Justification for feature update:
> The EnergyPlus condenser loop manages the simulation of all plant 
> environmental heat exchangers, including cooling towers, fluid 
> coolers, water-side economizers, ground coupled heat exchangers, 
> surface water heat exchangers and ground water heat 
> exchangers.  Control and configuration of these heat exchangers is an 
> important component of virtually all LZEB (Low/Zero Energy Building) 
> plant designs.
> 
> Currently the EnergyPlus condenser simulation is structured in a way 
> that precludes the implementation of innovative condenser loop 
> control and configuration schemes.  Restrictions on the number, 
> placement, and control of loop pumps, the types and locations of 
> setpoint managers, the load calculation algorithm and the flow 
> resolution algorithm all restrict the flexible simulation of LZEB 
> condenser loop options.
> 
> Overview:
> This enhancement task will propagate the structures and algorithms 
> recently implemented in the EnergyPlus plant loop simulation to the 
> condenser loop simulation.  These upgrades, which were implemented in 
> the plant loop simulation specifically to support LZEB plant options, include:
>     * headered pumps
>     * loop and branch pumps
>     * common pipes
>     * enhanced flow resolution
>     * enhanced setpoint managers
>     * enhanced loop load calculation algorithm
> 
> At 06:14 AM 10/13/2009, Zuo wrote:
> >Hi,One of the new features'list is "Plant and Condenser Loops merged 
> >with significant improvements throughout", but In E+ documentations 
> >it is rarely mentioned and can you tell me anything on this 
> >improvement? Thank you in advance!
>




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