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Re: [EnergyPlus_Support] Re: Weather file sub-hour capability





Hi Malindo,
 
You might want to try using an actual year weather file to eliminate any problems of the TMY file which is knitted together from 15 - 30 years of data.  Since you are a sutdent, we are happy to supply you one (no charge) for your site for what ever year you would like to see if that helps.
 
Just let me know,
Chuck, Weather Anlaytics

From: malindow <fypguevibyor@xxxxxxxxx>
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Sent: Sunday, April 1, 2012 10:02 AM
Subject: [EnergyPlus_Support] Re: Weather file sub-hour capability

 
Hi Ms. Linda,

I am displaying roof surface outside temperature of the test building. I want to know how I can interpolate it down to minute?

There is a suggestion from a friend that I should use weather file commercially available instead of the epw provided by energyplus website.

I guess it is not the weather file problem. But I am still clueless how can avoid the abrupt jump.

Regards,

Malindo
Final year student
Singapore
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@...> wrote:
>
> Your weather file should be interpolated down to the minute if you
> are using a time step of 60.
>
> Are you displaying the outdoor temperatures?
>
> At 03:13 AM 4/1/2012, malindow wrote:
> >I run a simulation (using timestep = 60) and found that there is
> >abrupt change in temperature for every new hour e.g. temp at
> >16:00:00 is 36.8 deg and temp at 16:01:00 is 26.1 deg. This is weird
> >since it never abruptly change along the hour itself (temp in minute
> >1 to 60 changes gradually).
>





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