Six kilos of grease past a market-leading cyclone hood. The duct was clean anyway.
Four Lynx units mounted downstream of a market-leading cyclone hood at Oslo Airport Gardermoen captured over six kilos of grease in fourteen months — grease that would otherwise have built up in the duct. The spiral duct was visually clean anyway.
In a new restaurant at Oslo Airport Gardermoen, Lynx was installed downstream of a market-leading extraction hood with built-in cyclone separation. The hood supplier itself argued that Lynx was unnecessary, because the hood would already capture most of the grease.
After fourteen months of continuous operation in a heavily loaded kitchen, four Lynx units were inspected at the first service. The service was carried out by Caverion Norge. During this period the four units had captured over six kilos of grease. This is grease that had passed the cyclone-based hood and would otherwise have built up in the duct network. The spiral duct downstream of Lynx was visually clean.
The result illustrates a point of principle. Lynx is built to separate out all liquid droplets in a single stage, from 0.1 µm up to the largest droplets regardless of size. Cyclone- and inertia-based solutions capture the large droplets, but the finest ones follow the airflow and pass through. These are the ones Lynx captures, so they do not settle in the duct. This is why we do not recommend internal grease separators inside the hood itself. They increase the pressure drop without fully solving the task, as the figures from Gardermoen show. Lynx takes the grease at the source, and the duct network stays clean throughout its entire service life. All components are dimensioned for 20 years of operation.
This applies regardless of which hood supplier or manufacturer the installation uses. When separation is handled by Lynx, the hood does not need internal grease separators that make the product more expensive and burden fan operation.
On this basis, Lynx Kitchen produces its own extraction hood. It has all the lighting and air control expected of a modern hood, but without the costs that come with internal separation solutions from the established brands. The goal is that Lynx and the hood together can be delivered in the same price class as the leading systems today, with one decisive difference: documented clean exhaust air and clean ducts.
At Gardermoen, the heat from the exhaust is recovered in a heat exchanger placed close to the source. Because Lynx removes all the liquid grease, the air is clean enough to be returned directly into the terminal where travellers are present, instead of running through long ducts across the building and out over the roof. That saves long duct runs, space and cost.