Abstract |
The results of two experimental and analytical projects to develop and evaluate the U-tube aeration concept are presented. Experimental data were obtained to characterize the mass transfer and fluid dynamics behavior of U-tube systems over large ranges of design variables and operating conditions. Mass transfer and fluid dynamic correlations, plus a design computer program, were developed to use in designing U-tube systems. A satisfactory basis for design now exists, although additional improvements are needed. It was found that U-tube systems are a practical, flexible, efficient method for aeration in a number of applications. They are well-suited to applications in which it is desired to raise the oxygen concentration of a moving stream, even to saturation. (Modified author abstract) |