Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Thank you! @rraustad
I've fixed this issue by:
Converting the condensor loop containing the cooling tower to a plant loop.
Adding a boiler to that plant loop which then heats the plant loop to keep it from falling below 15 C.
The only thing I'm having trouble understanding now is why does this VRF system with a boiler and cooling tower consume more energy than a air cooled VRF system.
| | 2 | No.2 Revision |
Thank you! @rraustad
I've fixed this issue by:
Converting the condensor loop containing the cooling tower to a plant loop.
Adding a boiler to that plant loop which then heats the plant loop to keep it from falling below 15 C.C. This means that the plant loop will never become too cold.
The only thing I'm having trouble understanding now is why does this VRF system with a boiler and cooling tower consume more energy than a air cooled VRF system.
| | 3 | No.3 Revision |
Thank you! @rraustad
I've fixed this issue by:
Converting the condensor loop containing the cooling tower to a plant loop.
Adding a boiler to that plant loop which then heats the plant loop to keep it from falling below 15 C. This means that the plant loop will never become too cold.
The only thing I'm having trouble understanding now is why is. Why does this VRF system with a boiler and cooling tower consume more energy than a air cooled VRF system.system. Furthermore why does the VRF air cooled system meet all the setpoint hours while the water cooled VRF with a cooling tower doesn't?
The idfs for the air cooled VRF, the water cooled VRF with a cooling tower and the water cooled VRF with a cooling tower and boiler can be seen here.
Also I am using the weather file Newmark internal airport New Jersey.
Any insights would be most appreciated!
