[EnergyPlus_Support] High RH in Natural Ventilation problem [2 Attachments]

[Javed Iqbal <eee.javed@xxxxxxxxx>]

Dear All,

I'm trying to model natural ventilation in a single zone model. I'm using zoneVentilation:DesignFlow object to define my controls based on min/max indoor/outdoor temperatures. I'm looking for RH and Dry bulb temperature for occupied hours based on the schedule defined. I found there is variation in temperature throughout the year but RH is very high even in no monsoon season. The internal loads are given as:

Occupancy: 100 Sqft/person

Equipment: 0.5 W/Sqft

Lighting: 1 W/sqft

Climatic location: 1A

I do not find any reason for high RH in zone except people latent loads.

 

I would like to understand weather Energyplus zoneVentilation:DesignFlow simulates RH correctly? 

I'm attaching IDF and weather file for your reference. FYI, it takes 5 sec to run this simple problem in case someone wants to visualize the results.

Any help would be highly appreciated.

Thanks,

--

Javed Iqbal, LEED AP, CEA

Sr. Energy Analyst 

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