Abstract
Mass transfer characteristics of a spray column used as a dehumidification and regeneration device is reported. The experiment was conducted by using air of known humidity and polyethylene glycol (PEG) as a desiccant solution, changing the process parameters including liquid flow rate, gas flow rate, water concentration of PEG, PEG temperature, and nozzle diameter. The performance of spray column was evaluated in terms of volumetric mass transfer coefficient. The result was correlated by the dimensionless groups including physical properties the liquid and nozzle diameter. The experimental and values obtained by the derived correlation agreed better than other correlations.
