Suplly Air Diffusion - ADPI
Suplly Air Diffusion - ADPI
(OP)
Got supply air diffusers for an internal zone of an office supplying 2.5l/s/m2 of air for air conditioning needs. I know it sounds a little low for air diffusion purposes and the consultant is complaining because he is used to the so called industry standard of minimum of 4.5 l/s/m2. He wants me to prove that I will get propper coverage with the diffusers and he wants me to do an ADPI calculation. Does anybody know how to do it easily??
By the way I have linear slot diffusers - which the manufacture guarantees excellent diffusion pattern, we are currently getting them tested in a lab.
Regards
Billyq





RE: Suplly Air Diffusion - ADPI
It provides a simple table with various air diffusion types, diffusser spacing, room load and maximum ADPI achievable.
Are you from Melbourne Australia?
RE: Suplly Air Diffusion - ADPI
Sydney... and tis bloody hot mate!
What do you think of that 4.5L/s/m2 rule of thumb that every body sticks to?
Regards
RE: Suplly Air Diffusion - ADPI
i believe the 4.5 l/s/m2 as being slightly high as it typically in excess of the room sensible heat load. your proposed 2.5 l/s/m2 appears low (only based on gut feel).
so, using the Air Diffussion Performace Index and being somewhere between the two values you should be able to put together a reasonable arguement.
i had the same situation down in melbourne