Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
I'm assuming dni and ghi are normal and global solar (Wh/m2)? What about diffuse solar, is it also zero? Are there any internal loads in the model (People, Lights, Equipment, Infiltration)?
| | 2 | No.2 Revision |
I'm assuming dni and ghi are normal and global solar (Wh/m2)? What about diffuse solar, is it also zero? Are there any internal loads in the model (People, Lights, Equipment, Infiltration)?
Update: Upon inspection of your weather file, dry-bulb temperature is constant 20C and Normal and Diffuse Solar are constant 0.1, but all other aspects of the weather file are varying throughout the year. Global solar varies between 0.1 and 0.2 throughout the year. These non-zero solar gains are what's causing the temperatures to rise in your space. Also, because you changed the dry-bulb temperature, but did not change the other variables (wet-bulb, pressure, RH, etc.) to represent a realistic psychrometric state, it may cause issues with the simulation because the states don't exist as they're defined in the weather file. The relationship between state variables is tabular, so all variables can be looked up if given two state variables. But if you change one without changing the others, this does not represent a realistic state.
