23-21: Sizing of Plume Abatement Coils – Part 2

Plume abatement coils are used to reduce/prevent visible plumes of moisture exiting a wet cooling tower fan stack. Typically, this is done by mixing in dry, heated ambient air with the moist air stream exiting the drift eliminators. The cold ambient air passes over the “airside” of the coil and is heated by transferring heat from a hot fluid source flowing on the “tube side” of the coil. The paper is a follow on to the paper presented in 2022 and will present the methodology and equations required to calculate the air side pressure drop of a thermally sized plume abatement coil.