If you download a technical PDF on this subject, these are the terms that dominate the chapters: If you download a technical PDF on this
: The difference between the hot water inlet and cold water outlet temperatures. observe the tower plume. A heavy
Using principles from the ASHRAE Handbook , observe the tower plume. A heavy, persistent plume on a warm day indicates high humidity in the exhaust, which may be caused by uneven water distribution or a failing drift eliminator.