Stainless Steel World Magazine October 2024 | Page 31

[ Water Handling ]

[ Water Handling ]

The process offers several advantages : it creates seamless , large-diameter tanks with minimal welding , reducing potential weak points and improving structural integrity . It also allows precise control over shell thickness and diameter . The method is particularly suitable for large-scale tanks due to its efficiency , reducing production time compared to conventional plateby-plate assembly . Additionally , the use of large coils minimises material waste , contributing to cost savings and environmental sustainability .
Automated cleaning system These stainless steel tanks include an automated cleaning system . The system , operated from an external platform , uses high-pressure nozzles to clean internal surfaces . This method reduces maintenance requirements compared to traditional concrete tanks , which may be advantageous for large-scale water storage applications .
Environmental considerations A comparative life cycle analysis conducted for the Kuhberg project indicated that the stainless steel tank solution results in lower CO2 equivalent emissions compared to conventional alternatives . This analysis , performed within defined system boundaries and in accordance with DIN EN 15804 , highlights the environmental benefits of stainless steel in large-scale water infrastructure .
The external overflow system with siphon and ventilation .
Stainless steel ensures longevity , reducing maintenance needs and lifecycle costs .
Overcoming engineering challenges The project encountered several engineering challenges , primarily in designing the tank overflow system . This system needed to manage an overflow volume of 2000 m ³/ h , requiring a specialised design based on finite element method ( FEM ) analysis . Rigorous theoretical verification was conducted before production began , ensuring the system ’ s capacity to meet these demanding specifications .
Water infrastructure evolution The water storage industry has seen significant changes over the past five decades . Early innovations involved lining concrete tanks with stainless steel to improve durability and water quality . More recently , fully stainless steel tanks with integrated cleaning systems have been developed , addressing various water storage challenges . Modern stainless steel tanks for water storage are typically fully welded , pickled , and passivated . This process eliminates the need for sealing materials , which can degrade over time and potentially affect water quality . Various grades of stainless steel are used in these applications , including 304 , 316L , 316Ti , and duplex steels such as LDX 2101 . Each grade offers different properties in terms of strength , corrosion resistance , and cost , allowing for tailored solutions to specific project requirements . The development of these technologies reflects the industry ’ s ongoing efforts to improve water storage efficiency , maintain water quality , and reduce long-term maintenance needs . As water management becomes increasingly critical globally , such innovations in materials and design play a crucial role in developing sustainable water infrastructure .
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