Global Journal of Researches in Engineering, E: Civil & Structural, Volume 23 Issue 2

drinking water drinking water Stainless Steel 304 or 316. No - The use of stainless steel due to the potability of the water Food industry Processed and Ultra- processed for consumption Fire Fighting Firefighting system water Carbon steel Yes 1 to 2 mm Preferably A-36 due to its normative condition of greater resistance Source: The authors (2023) Based on Table 2, the designer obtains initial guidance on the most suitable materials and finishes for the project. However, it should be noted that the designer's final decision must consider the specifications and particularities of the product (if any) and the minimum requirements of the customer. c) Criteria for using Accessories to Improve Performance Although the influence of tank accessories, for example nozzles and internal floating roofs, is low when considering the total weight of the tank. Consequently, the direct cost of acquiring the tank is little affected, but the correct sizing of the accessories and their application can bring benefits in the operation of the tank and increase its useful life. In order to assess the influence and impact of accessories on the performance of the tank, these criteria were subdivided into sizing of the inlet and outlet nozzles and the breather valve, use of accessories and sensors and use of internal floating roofs. i. Inlet, Outlet and Tank Breather Nozzles The filling, outlet and breather nozzles directly interfere with the exchange of emissions with the environment and, consequently, must be well dimensioned to avoid air pollution. Incorrect sizing of these can deform the structure of the tank (see Figure 1), in addition to increasing emissions into the environment, with consequent environmental and economic impact. To guarantee the performance and safeguard the integrity of the tank against operational damage such as: corrosiveness in the nozzles due to abrasion, under pressure or vacuum; proper sizing of nozzles and vents is essential. A B C D Global Journal of Researches in Engineering © 2023 Global Journals ( ) E Volume XxXIII Issue II Version I 4 Year 2023 Atmospheric Storage Cylindrical Tanks: Project Optimization Considering Environmental Criteria