STRINGS OF LIQUID BEADS FOR GAS-LIQUID CONTACT OPERATIONS

A novel device for gas-liquid contact operations is proposed to feed a liquid onto wires (or threads) hanging down in a gas stream is propos ed. The liquid disintegrates into beads strung on each wire at regular intervals; if the wire is moderately wettable, a thin film forms to s heathe the wire, thereby interconnecting the beads. Since the beads fa ll down slowly, which possibly renews the film flowing down even more slowly, a sufficient gas-liquid contact time is available even in a co ntactor with considerably limited height. An approximate calculation m ethod is developed for predicting the variation in the temperature eff ectiveness for the,liquid (the fractional approach of the liquid exit temperature to the gas inlet temperature) with the falling distance, a ssuming an applicability of strings-of-beads contactors to thermal ene rgy recovery from hot gas streams.