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[EnergyPlus_Support] Re: Ideal Wierdness

Hi Tom,

I am a Energyplus Newbie So I might be very wrong. But could it be that your ideal loads system is heating to reach the heating setpoint while at the same time it is cooling a bit to dehumidify? If you are using EP version 7.0 the ideal load system has some humidification controls which could cause this effect i think.

Michael

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "tom.bee57" <tom.bee57@...> wrote:
>
> Perhaps I am revealing my ignorance here, hopefully to be enlightened. 
> 
> I am modelling an AirflowNetwork with openable windows on a temperature control scheme. Loking at the Ideal Loads Total Heating and Cooling Energy, per timestep, I find that both are non-zero during some timesteps. 
> 
> Why is this ? Is the Ideal Loads HVAC really heating and cooling the air at the same time ? 
> 
> Here is a snippet of the output
> 
> OAT, Zone Temp,Thermo Htg Sp,Thermo Clg Sp,IL Htg Energy, IL Clg Energy
> 7.2,         21,          21,           24,       1913927,       4868
> 
> Both heating and cooling loads are shown over the following hour or so, as the zone temperature remains at 21C. What am i missing here ? 
> Timestep is 6mins. 
> 
> Tom
>




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