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[EnergyPlus_Support] Re: Building Heat Gain / Loss

Thanks for all your answers. You have been very helpfull. 

I have been using the ZoneHVAC:IdealLoadsAirSystem. But in this functionality I need to INPUT a value of Maximum Heating/Cooling Air FLow Rate, that has been previouslly calculated by me. 

Thanks

R.A


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Bereket Nigusse <nigusse_ba@...> wrote:
>
> Hi,
> 
> The answer is yes, but it is a single value. This net single value can be  
> heating or cooling load. If you want to eliminate the impact of the HVAC  system 
> use an ideal load object (ZoneHVAC:IdealLoadsAirSystem).  
> 
> 
> Energy Plus calculates a single value for load, which is the results of 
> interactions of the various heat gains with the building surfaces 
> (constructions), and boundary conditions. The reason being a single value is 
> that energy plus solves the interaction of the various forms of heat gains 
> simultaneously, which is more realistic representation of what is happening in 
> real buildings. This value is the amount of heat that needs to be added or 
> removed from the zone to maintain the room air at heating or cooling temperature 
> set point, respectively, at each time step.
> 
> Also Energy Plus reports the various heat gains. But the sum of the heat gains 
> is different from the load.
> 
> Hope this helps.
>  
> Bereket
> 
> 
> 
> 
> 
> ________________________________
> From: lastdevil730 <lastdevil730@...>
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Sent: Wed, July 20, 2011 5:47:01 PM
> Subject: [EnergyPlus_Support] Building Heat Gain / Loss
> 
>   
> Hi,
> 
> I've been reading many replies regarding this theme but i've never found a 
> concrete answer!
> 
> Is it possible with EnergyPlus to determine the Heat Losses / Gains of a simple 
> room without input any airflow? I just want to determine the Total Load (sum of 
> conduction, convective, radiative) that i have to input to maintain the room at 
> 25ºC, for example.
> 
> Thanks
>




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