I have seen this before when users put in the interzone surfaces so as to let EnergyPlus create them and then, for some reason, also put them in as surfaces in the zone.
You need to look at the Surface Details report as well as the .eio file numbers for volume.
The volume calculation is a polyhedron volume calculation, there are several formulas shown on the web:
http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/volume.html
I do not have an exact reference for the method we use in EnergyPlus.
At 08:02 AM 12/12/2010, reza m wrote:
Hi linda,
he sent me his file and i check it. and i don't know why eco file has incorrect number
calculation by using openstudio area * hight
Zone Name Volume {m3}
OFFICE_WITHOUT_W 59.84
SMALL_OPEN_PLAN 550.08
STORAGE 20.16
MEETING_ROOM 88.64
OPEN_PLAN_OFFICE 1947.84
OFFICE_WINDOW 56.32
TOILET_CORRIDOR 190.08
BACK_ENTRANCE 49.92
RECEPTION 153.28
auto calculation
Zone Name Volume {m3}
OFFICE_WITHOUT_W 99.75
SMALL_OPEN_PLAN 844.42
STORAGE 165.6
MEETING_ROOM 299.54
OPEN_PLAN_OFFICE 1397.72
OFFICE_WINDOW 56.27
TOILET_CORRIDOR 316.66
BACK_ENTRANCE 49.84
RECEPTION 409.85
On Sun, Dec 12, 2010 at 3:51 PM, Linda Lawrie <linda@xxxxxxxxxxxxxx> wrote:
- What are you basing your "incorrect" zone volume comment on?
__._,_.___
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
![]()
Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
__,_._,___