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Optimised air filtration yields real benefits

Eagle Filters’ solutions for industrial and general ventilation needs combine excellent filtering efficiency, good mechanical durability, and class-leading aerodynamic properties. And they do so very cost-effectively as well.

Eagle Filters’ comprehensive R&D programme and close cooperation with suppliers and research organisations have played an important part in the company’s success, particularly in the case of its air inlet filters for gas turbines.

Selecting the best filter is one of the most crucial factors affecting the operation and efficiency of a gas turbine, as operators can lose hundreds of thousands of euros per unit every year if they choose a poorly designed or underperforming filter.

By switching to a TurboMaster static cartridge filter from Eagle Filters, a customer running a gas turbine-based combined cycle power plant in Asia, for example, was able to overcome compressor fouling problems and repeated service outages – and save the equivalent of hundreds of thousands of euros and achieve a payback time of less than three months.

The right customised solution

Eagle Filters never supplies a bulk filter where a customised solution is called for. The better filtering efficiency and smaller pressure loss this provides will always be a much more economical option than a mass-produced filter.

This is also true of conventional self-cleaning filters, which Eagle can re-engineer to better suit local conditions. In many cases, no modifications are needed to air inlet filter housings. As a result, a filtering system can be modernised just as easily as replacing filters.

The name says it all

One of Eagle Filters’ latest innovations is the Magnum, which has been designed to deal with the excessively high volumes of air flow encountered in many modern filter houses, which reduce filter service life and drive up costs.

Thanks to a patent-pending aerodynamic design, the Magnum delivers increased filter reliability in all weather conditions and enables users to introduce a new generation of filtration without the need to retrofit or modify their filter houses. A Magnum unit can extend the service life of final-stage filters by as much as 50%.

Compared to standard static F8-class filters or pulse filters, a Magnum will reduce compressor fouling and may even eliminate the need for off-line washing altogether. This is a valuable advantage, as fouling translates into lost output and revenue, higher CO2 emissions, and increased maintenance.

The Magnum utilises a new EHP material that enables users to take advantage of the benefits of HEPA-class filtration without any of the disadvantages, such as performance issues when there is moisture in the air. Thanks to this material and the advanced aerodynamic design of the Magnum, no changes are required in maintenance and outage intervals – and a unit will typically pay for itself in less than a month.

A compressor inlet prior to using one of Eagle Filters’ Magnum EHP filters and 8,000 hours later.
> Antti Dufva
(Published in HighTech Finland 2011)