Not sure what you mean by difficulties during simulation. Take as a
guide ones that are included with the installation or check out others
that are available for download.
(See the Locations-Designdays spreadsheet in the MacroDataSets folder
that is under the main install (root) folder.
These usually specify the design days as outlined by ASHRAE.
For example,
titles with: Heating 99% Design Conditions DB mean they are the 99%
for heating (only 1% of the time will the conditions exceed that) with
the DB meaning they are based on Dry Bulb Temperature.
Cooling has many more options (again outlined when you use which in
ASHRAE HOF). Cooling DB=>MWB 1% in the title is saying Dry Bulb
with a Mean Wet Bulb -- often used for cooling design but other buildings
will need different conditions.
At 04:00 PM 6/24/2009, Sajal Chowdhuri wrote:
if i can make my own design day
profile then it may occur many difficulties while simulation.how can we
generate our own design day,have any specification?
thanks
From: Linda Lawrie
<linda@xxxxxxxxxxxxxx> To: EnergyPlus_Support@xxxxxxxxxxxxxxx Sent: Thursday, June 25, 2009 2:43:36 AM Subject: Re: [EnergyPlus_Support] Re: winter design day
Feel free to make up your own design day profiles.
You asked why the ones supplied were a certain way and Jim
answered. That you don't agree is a mute point.