[EnergyPlus_Support] Re: Unmet Hours from Outdoor Air Units in EnergyPlus

["ad3_prasetya@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>]

Hi Julien,

I am still waiting for technical specs from our mechanical team, it seems that it will took a lot of time. Therefore, for now I couldnt use other inputs than autosized things.

In my latter post, I got explanation from Jean that the unmet hours problem arises from uncorrected HVAC sizing performed by eplus as you told me also before. 

Here I would like to ask you this, since increasing tolerances or throttling range doesn't produce realistic results, how about I modify the sizing:parameters to compensate the undersizing phenomenon? Because when I increased the cooling sizing factor it seems everything is lighted up. Yes, as the result, total energy consumption is increased, but at logical rate, I think. Moreover, unmet hours problem is reduced significantly due to the increased HVAC capacity from factoring the autosizes. Then, if I use the identical number in sizing:parameters on LEED's baseline case, wouldn't the results be logical enough in context of comparing between proposed and standardized scenarios mandated by LEED?

Thank you for your attention.

Regards,
A

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Posted by: ad3_prasetya@xxxxxxxxx
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