Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Based on what I can tell, there is no heat transfer in any of my ResStock models from the ground. I changed the ground temperature from 18 deg C to 100 deg C and noticed very little change in any of my zone temperature variables. I looked at crawl zone, living zone, unfinished attic zone, and garage zone.
| | 2 | No.2 Revision |
Based on what Site Ground Temperature is not used by my models to calculate ground heat transfer. This is because my models use Foundation Kiva instead of some other algorithm. If I can tell, there look at the wall/floor surface boundary conditions, they are "Foundation," and the boundary condition object is no heat transfer in any of my ResStock models from the ground. I changed the ground temperature from 18 deg C to 100 deg C and noticed very little change in any of my zone temperature variables. I looked at crawl zone, living zone, unfinished attic zone, and garage zone. a Foundation Kiva object.
Instead of playing with Kiva settings to try to minimize ground heat transfer, I am instead adapting a measure to change the boundary condition for surfaces with "Foundation" boundary conditions to "Adiabatic."
This should hopefully result in zero conduction between the building and the ground.
