I have two models implementing two different air side loop as below (plant loop and internal loads are same):
1.VAV system
2.PAU+FCU system
Looking at result, system 2 consume 20% more for cooling which is caused by air side cooling load removal difference as below (26%difference).
1.13,341MWh
2.18,067MWh
When I look at heat gain (People,light,small power,solar heat gain, conduction), I cannot find such difference.
1.12,068MWh
2.11,946MWh
Can anyone tell me what could be the reason causing this difference?
