Clean Room HVAC Design

[woldfield]

We are working on a clean room design for a room that is Class 1000, 4500 sqft., 10' ceiling. I've figured the cooling load to be about 15 tons - using 40 btu/sqf just to cool the room itself. I've guessed about 10 tons for additional heat load from equipment, etc. for a total of 25 tons.

We think it will require 90,000 CFM total to satisfy 180 air changes per hour. That might be overkill?

My question is this... what's the best type of system to design? My thinking tells me a 25 ton dedicated cooling unit and a recirculation setup...

Any thoughts or suggestions?

 

[berkshire]

Try re-posting this on forum 403 HVAC/R engineering. That is where the people reside that can give you a better answer.
B.E.

You are judged not by what you know, but by what you can do.