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Sign upApril 16, 2016
Fortune 100 Company
Houston
A Fortune 100 company installed a HydroFLOW unit at its 595,600 sq ft corporate HQ to boost sustainability beyond its existing LEED Gold certification. The unit was placed on the open loop condenser of two 1000-ton cooling towers. Goals included reducing water and sewage usage, chemical consumption, energy and maintenance needs, and extending equipment life. A third-party audit compared two years of historical data to one year of HydroFLOW operation to assess performance improvements.
The HydroFLOW unit prevented limescale and biofouling in chillers and cooling towers, boosting efficiency and enabling higher water reuse. Environmental benefits included 85% less discharge water, 75% fewer chemicals, and 50% less maintenance. Energy use dropped 10%. Economically, the system saved $73,400 annually in water and energy, with a positive Net Present Value of $4.76M over the building’s 50-year lifespan, highlighting strong environmental and financial returns.
Industries rely on water for many different purposes, but its unique properties mean that it is particularly efficient at transferring heat, so water is vital to both cooling and heating applications. When the state of water is changed, for instance when the water is heated, it is less able to hold on to the minerals dissolved in it and they precipitate out to form a hard mass on the surfaces of pipes and equipment, most commonly calcium carbonate or limescale, but also phosphate or sulphate scales. This blocks and damages equipment, requiring its premature disposal. The layer of scale also forms a thermal barrier, meaning that heat transfer is greatly reduced and leading to major inefficiencies - just 2mm of scale can lead to an efficiency loss of 20%. HydroFLOW units induce an electric field into the water and the pipe network to prevent the buildup of hard mineral scale without adding chemicals to the water, keeping equipment running at maximum efficiency and for longer.
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