Hi!

The design flow in baseline is determined with a temperature difference of 11 C (G 3.1.2.8). This design flow and the fan power (G 3.1.2.9) will give you the specific fan power (kW/m3/s) for the AHU baseline. If I’m right...

Q1: The minimum flow setpoint shall be 2,15 l/s,m2 ( G 3.1.13). If the designed air flow is calculated to 1,3 l/s,m2 for a baseline zone due to (G 3.1.2.8). Shall we use 2,15 l/s,m2 or 1,3 l/s,m2 as a minimum flow setpoint for baseline?

Q2. The designed air flow is calculated with a temperature difference of 11 C, (G 3.1.2.8). But shall we have that temperature difference in our energy calculations as a setpoint for both summer or winter case. Or shall we have the proposed design setpoint in baseline eg. air temperature summer 16 C and air temperature winter 18 C in both baseline and proposed design.

Thanks!

Lisa