Assessing the Methods for Forming Interfacial Heat-Mass Exchange Surface in Flowing Air Contact with Water

In contact devices for air steam treatment, an overview of ways for producing interfacial heat-mass exchange surfaces is offered. The employment of a plate head-piece with a mechanical vibration exciter is proposed as an effective approach for creating a heat-mass exchange surface in air flow contact with water during adiabatic wetting in air conditioning systems. For these conditions, a technique of defining the area of the interfacial heat-mass exchange surface based on the number of transfer units is established. When a plate head-piece with a vibration exciter is employed for adiabatic air wetting, the criteria equations that explain heat and mass transfer are found. Because of the reduced aerodynamic resistance of the air channel and process intensification, using a plate head-piece with vibration exciter as a contact device saves energy consumption.