Cleaning in the Processing Industry:
Virtually Test Cleaning Results with SPH
In the chemical and construction industries, engineers are designing large tanks with cleaning nozzles. To optimize the amounts and locations of the nozzles, engineers analyze the water distribution and wall shear stresses resulting from the water jets. With an SPH software, it’s possible to virtually test the cleaning results and identify the best performing design without the need to build physical prototypes.
Tanks in liquid processing that contained e.g. chemicals, food, beverages or concrete, must be properly cleaned to ensure product purity, safety, and compliance with industry regulations and standards. However, this cleaning process can be resource-intensive, particularly in terms of water and energy consumption.
In the following example, twin nozzles within a tank initiate rotation through the force generated by the water. Both the rotatory motion of the nozzle and the cleaning of the tank are a result of forces exerted by the water. A good cleaning result requires certain shear and normal forces to eliminate residues. It's important to note that excessive forces do not necessarily lead to better cleaning results. The optimal force, and consequently, the ideal water volume, must be precisely calibrated to remove residues efficiently. A fluid dynamics simulation can help with this, as it allows to compute the forces exerted from the fluid to the wall. This is visualized in the video below: