In this paper the discharge and velocity of flow produced by a spray nozzle during the washing of aggregates is optimized for efficient operation of the nozzle during the washing of aggregates. This needed for efficient washing of crushed aggregates that produced silica that are harmful to human life and the environment. The increased in discharge and velocity of flow increases the jet pressure, and droplets that are needed for efficient and more economical washing of aggregates. In this study, the tools of fluid dynamic and solid works are used in optimizing the proposed design. The major parameters used in modelling optimal performance of the jet nozzle are flow velocity of spray nozzle and discharge of spray nozzle. The following results are theoretically revealed after modelling and simulation with solid works.
It was revealed that the optimal flow velocity gave high discharge with proper scattering of droplets during the washing of aggregates. An optimal discharge at an optimal nozzle diameter were revealed for efficient discharge during the washing of aggregates. It was also shown that there was an optimal nozzle diameter that gave optimal flow of water during the washing of aggregates. It was also revealed that the optimal nozzle diameter and droplet thickness gave an optimal discharge and velocity of the spray nozzle during operation. Varying direction of velocities in the system during operation given was revealed by solid works to have different impacts on flow velocity and discharge. The correlation between theoretical obtained results and simulated results from solid works revealed that the velocity of the water flowing in the spray nozzle have a range of velocities from 38.659m/s to maximum velocity of 77.314m/s as shown in the simulated result. The obtained results revealed close correlation in both modeling and simulation. It could be concluded that the design will function efficiently at optimal velocity and flow rate during operation.
Keywords: optimizing, discharge, velocity, efficient spray nozzle, flow rate, velocity, nozzle diameter and efficiency.