[Equest-users] eQuest Design Days

[Carol Gardner]

Todd,

I have been told in the past that it is best to use the TMY weather file 
rather than the Design Day input. If you use the TMY3 file you should 
have all the latest weather/solar info. Just do as you would with DD 
calcs: revise you schedules for summer hottest day with everything on 
and winter coldest day dead of night with everything off, set your 
sizing factors to what you want and hit enter. This should give you good 
output. Be sure to have all the wall/glass info in that you want and be 
sure you have the right thermostat type and throttling range for it 
based on your HVAC system type.

Carol

Todd Lagus wrote:
>
> Hello All,
>
> Has anyone ever tried to use eQuest for sizing equipment? I know about 
> the design day input, but it only allows for a single design day, 
> which doesn’t necessarily cover all of the bases for solar angles. 
> Based on the standard TMY2 weather files, I know that shouldn’t be 
> done, but has anyone ever created some design day weather files? I’m 
> especially suspicious of the equipment sizing due to the sunlight 
> clarity factors. It would save a lot of time if eQuest could do design 
> day and simulation calculations that could be trusted, but I’m not 
> sure if there is a time effective way to do it. Any input would be 
> greatly appreciated.
>
> Thanks,
>
> Todd
>
> **Todd Lagus, EIT**
>
> Mechanical Engineer
>
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