7. Optimization of clean water circuits
Cooling water and boiler water are generally used at high flow rates. Water consumption can be reduced by adopting closed or semi-closed circuits, or by using reheated water at other manufacturing stations.
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Adoption of closed or semi-closed cooling circuits
The following key points must be observed.
In closed circuits, the water is cooled by contact with a secondary fluid (air or water) and is then recycled without contact with air. In semi-closed circuits, on the other hand, the water is cooled by evaporation in an atmospheric cooler before being recycled.
Water-cooled refrigeration compressors should be replaced by air-cooled compressors. Cooling systems can be upgraded with chillers, tubular or plate heat exchangers. In wineries, wastewater cooling should be eliminated,...
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Optimization of clean water circuits
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