The message is possibly controversial, yet quite simple: Selection is all about fan total pressure. The article is a bit more complex, with discussion of what the author sees as confused logic, accompanied by multiple illustrations to back up his premise. Take a look for yourself - when it comes to proper selection methodology, the pressure is on.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue