[BLDG-SIM] Bldg L/W ratio Reference Cases

[John Ross]

I recently ran a series of  1536 sq ft  single story residential 
buildings, starting with 48 ft x32 ft,
changing the aspect ratio but leaving everything else the same. Then I 
changed the roof from flat to attic and ran  it again using Energy 10 
V1.8.  There was almost no difference in annual fuel consumption at all 
from the aspect ratio changes.....The treatment of "attic" is not well 
explained -- is the insulation flat on the floor or along the rafters? I 
was told earlier that the areas for each face of the roof  were in the 
plane of the roof not the flat projection, so we just increased the 
surface area..
Do we add the gable ends to the wall areas ?

I cannot get a daylighting / SDHW / PV run to work on a nonsample 
problem. The Eplus bombs, etc.  <Windows 98SE, Pentium 3 / 800Mhz, 256 
MB memory,> {hey the Energyplus is on the
new machine don't laugh }

I keep getting another error  that I can't have more that one roof face 
with just one heating
zone, yet under E10 V1.6 I used one upstairs zone and one basement zone 
to analyze an L shaped Hip roof house, resulting in 6 roof faces and 
everything was OK.  Comparison to the real house went well with the 
differences being easily explained.

Is there a set of reference cases that we can run to compare EnergyPlus 
runs to EQuest runs  to Energy 10 runs?  Say a one floor residential, 
two floor residential, commercial midrise 3 to 4 story,
and a commerial high rise.

John R Ross  P.E.
Vienna,  VA


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