A strong and stable vortex flow is formed inside the vortex chamber, causing a strongly reduced pressure along the vortex axis.
Macroscopic and microscopic gas bubbles in water will be pulled into the low-pressure zone in the vortex chamber.
The low pressure will cause them to expand and gather into large bubbles that can be easily extracted downstream of the vortex generator.
Effects on the Water
This process is called de-aerating
In untreated water, limescale appears in the form of calcite, which has an angular shape on the limescale crystal. This means that it easily attaches to other limescale crystals, pipes and nozzles, forming limescale deposits. Those limescale deposits obstruct the water supply and routinely have to be removed.
In water treated using the REALice® System, the calcite is transformed into Aragonite, which has a more rounded shape and, consequently, does not attach itself to other limescale crystals, pipes, tanks or nozzles.
Another advantage is that the treated water also acts upon old limescale deposits, which are reduced and eventually vanish over a period of time.
Watch the video demonstration:
Ice quality is largely subjective and varies with user groups.
What could be noticed, though, is that better ice:
In the ice maintenance process, it’s not just snow that’s being removed when the ice resurfacer makes its rounds. As it moves around, the ice is shaved 1 mm to eliminate the scars on the ice and to make it nice and transparent again. Through ice crystal comparisons it was shown that the ice made with REALice-treated water is stronger, more homogenous and has a higher heat capacity, which leads to reduced energy usage in ice rinks. With the ice crystals being bigger, the density of the ice increases.
This image shows ice crystals of normal ice (left) and ice crystals made after using REALice® (right) as seen in cross-polarized light. The scale at the bottom is in cm. (Source: Lulea Technical University, Sweden, May 2011).
As well as removing the micro air bubbles present in the water, the vortex generator also decreases viscosity by between 3% and 17%, depending on water quality and temperature of the water.
Using vortex-treated water, the viscosity of the water is lowered, causing it to flow out more easily, despite a lower temperature.
Albert Einstein proved as far back as 1905 that gas bubble content affects the viscosity of water. As those micro air bubbles (undissolved gases) are removed, a decrease in viscosity can therefore be expected.
In the end, this changes the way water freezes, producing an ice that is more homogenous and strong, and has a higher heat capacity leading to less energy usage in ice rinks.