Hi all,
I tried to compare results from two different eQuest versions i.e. 3.61b and
3.63 with a same model with default eQuest settings. But I found there is
large difference in space cooling and vent fans load in both the version
results even though the models are same. Space cooling for v3.61 is 85.02 X
1000 kWh alongwith vent fans load of 36.14 X 1000 kWh. While for v3.63 space
cooling is 6.87 X 1000 kWh and vent fans load is 66.01 kWh. I cant
understand why there is such a large difference in the output. Is there any
large difference in the algorithms in both the versions?? Please find
attached .inp files for both the versions and also the weather file for
mumbai. Please go through the files..
Thanks & Regards,
Pawan.M.
This is from the bug that was discovered earlier - the fix is to overwrite
the eQUEST default for min cfm ratio (heating). Here is the code that should
be used:
if (#P("HMIN-CFM-RATIO") == unused)
then unused
else if (#RV(#P("HMIN-CFM-RATIO")) == 0)
then #P("HMIN-CFM-RATIO")
else no_default
endif
endif
Kendra Tupper, PE, LEED AP
John asked a good question - see the attached pdf for screen shots of where
to paste this code. You right click on the field circled in red and go to
"Edit User Default" to get to the 2nd pop up screen shown.
Kendra Tupper, PE, LEED AP
Which version is this bug in?
You can also download 3.63b which has the big fix in it. Dated July 3,
2009
The new version 3.63 - the eQUEST developers know about it and this fix was
posted a few weeks ago. It will be fixed in the next version.
Kendra Tupper, PE, LEED AP