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Re: [EnergyPlus_Support] one strange problem about weather data

The reason is that EnergyPlus uses sub-hourly time steps and the data 
are "averaged" over the reporting frequency.

Change the number of timesteps per hour to 1 (ref Timestep object) and 
the minimum system timestep to 0 (ref ConvergenceLimits object) and try 
the comparison again.

Timestep,  1;   !- Number of Timesteps per Hour
ConvergenceLimits, 0; !- Minimum System Timestep

Let us know if you still find difference in the weather file data..

hvacgeshen516 wrote:
>
> Problem description:
> I downloaded one weather data from www.energyplus.gov
>
> 1. I transfer it from epw to csv format;
> 2. I use this epw to do simulation and get output about outdoor dry bulb.
>
> however, results are: outdoor dry bulb from 1 and 2 are different...
>
> who know why? thanks
>
> I am still trying to find the reason..
>
>  

-- 
Richard A. Raustad
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Florida Solar Energy Center
University of Central Florida
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