I have two rooms A and B
1- two fans (1&2) supply air for room A that fan 1 extracts air from room B and fan 2 extracts air from outside, after the air is mixed in room A it is extracted by fan 3 to room B . I know that the flow rate in room B is 150l/s.
my question is:
weather I should define the flow rate of fan 1 and 2(supply fans to room A) 75 l/s individually that their add up is 150l/s or
I should define the flow rate of fan 3 150l/s.
Many thanks