@GT-EGR
There already is a project that I worked on, and had the hardest time dealing with FAHUs because of how the building is shaped and the amount of space I have as every single equipment went into the basement due to lack of a proper roof. and the building that had a roof, just the footprint was small enough that it created issues with fahu placement and duct runs.
I work in UAE, so its moving more towards compact buildings (mainly due to European architects being employed for design). Those guys are in the habit on design buildings that have smaller varying footprints which I guess seems fine by European standards, but the Middle East standards and requirements are a lot harsher. We have to drop temperatures from 45-55C to 20C (we design our outdoor air at 34/32C due to high humidity. for example it takes 250kW of energy to cool 7000LPS and due to FAHU restrictions I can't match the output to 18C/50%-60% RH. Usually selections come in at an RH of 70-80) so the cooling coil size increases by a lot and hence the overall equipment becomes large (I have FAHUs that are as long as 7meter that provide 7000LPS of fresh air).
@MintJulep optimize the supply of fresh air and the size of handling units. i looked at IDEC systems. for that. I wanted to know if there are other ways something like that can be achieved without occupying 70-100m2 of area to place the FAHUs and their ducts.