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[EnergyPlus_Support] Simulation for LEED - enegy saving using Natural Ventilation

Hi everybody!

I need to do a simulation that combines Natural Ventilation + HVAC, for LEED certification.

I have already simulated the proposal case with natural ventilation only, and then I could see that the building have 70% of occupied time in confort in compliance with Adaptative Model of Ashrae Standard 55-2010.

Now, I have to include the HVAC system, as it is defined in Ashrae Standard 90.1 - 2007 Appendix G, but this system will be turned on just for the time that Natural Ventilation isn´t enough to thermal comfort.

How is te best way to simulate this hybrid system? 

I´ve tried the AvailabilityManager:HybridVentilation, but I couldn´t get reasonable results and some experient professional said that this object doesn´t work...

I have also receieved an indication from this professional, that the best way to do this simulation, is to create a schedule for each hour that the natural ventilation doesn´t met the comfort level. How can I do such schedule? Someone have an example of that?

Thank you all very much for the attention!

Melissa Cacciatori.


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