What is the difference between Environment Temperatures and Air Temperatures?
In the analysis section, I have noticed that my building temperature can be lower than the outside air-temperature.
Is this due to the combination of air-temperature and windspeed?
I do not understand how I could be getting a temperature -5 deg C lower than the air temperature (see attached file - a simple glass box).
Many thanks,
David
(PS-Is this explanation/definition included in the help-file? I was unable to find it - maybe it would be useful to include)
| Attachment | Size |
|---|---|
| Box 10 x 10 x 2.4.eco | 115.27 KB |
DBT | EnvT | DRT
David,
The Environmental Temperature (EnvT)= 2/3 MRT + 1/3 DBT
where:
MRT = Mean Radiant Temperature
DBT = Dry Bulb Temperature (Air Temperature).
Ecotect, however, uses the Dry Resultant Temperature (DRT) - I know it says EnvT on the graphs... but the help files refers to DRT).
DRT = 1/2 MRT + 1/2 DBT
Note that if you want Ecotect to use DBT (air temperature), you can set that option under the User Preference window:
User Preferences > Options > Use More Proactive DBT-based Heating and Cooling Loads Algorithm.
Best,
Olivier
-
Thanks,
David
hello
hello
I want to make a comparison between Ecotect and an other software.
In the other software, i have the Dry Bulb Temperature and the Wet Resultant Temperature.
I want to know if the Environmetal Temperature are the Wet Resultant Temperature ?
I use a script to obtains temperature, wath temperature you print in ? (I put the script in attachment)
Best regards
Guillaume