I wanted to ask about modeling a fan energy consumption, my current model looks at a 100% OA AHU with a VAV system.
I tried to look at the hourly fan energy consumption in relation to the CFM supplied. when i looked on the results from a fan modeled using DesignBuilder\Energy+ engine i saw a discrepancy from what i assumed will be the theoretical consumption.
I assumed the following :
but looking at the result from the model i get that a power of 1.7 fits better with the simulation engine prediction, why is that ?
