![]() ![]() ![]() The first is that the louver blade design would also prevent water incursion during heavy rainstorms. There were two additional qualities that made sand louvers a great solution for this application. They have a 96.1% efficient for removing particles over 1 micron. We selected 8” thick sand louvers for this project. From our experience of providing Sand Filtration Systems for the Power Industry with facilities in the desert, we incorporated the use of sand louvers. The solution was to provide a first stage permanent filter that would help to prolong the life of the disposable filters. Filters become loaded quickly with the large particle sizes and must be replaced too often during the sandstorm season. Our experience with the offshore industry had taught us that using disposable filters alone would not be the most economical solution. The shipyard needed to know what size area to provide for filter storage and how often the FLNG facility would need to be restocked with filters. That would require telling the shipyard how frequently the filters would need to be changed. We knew that filters would part of the solution. Our challenge was to design a particle removal system that would keep out 95% of the particles at all sizes. The operator of the gas field had collected data on the sizes and volumes of particles from the sandstorms which they provided to us. The problem with operating an FLNG facility in that location was the frequency of sandstorms coming off the African Continent. The FLNG facility would be operating over a large gas field that had been discovered off the west coast of Africa. The problem was brought to us by a shipyard that was converting a vessel into a floating liquefied natural gas facility (FLNG). In this week’s blog, I’ll tell you how we solved this unique challenge of filtering out sand particles. The customer also added the challenge of determining the filter replacement frequency. The customer wanted us to design the best solution for filtering out sand particles from the air. Eldridge was recommended to the customer because of our work on offshore vessels. Recently, a customer came to us with a problem that involved filtering out sand particles from the air. We enjoy taking on a tough problem that challenges our ventilation expertise.
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