Safety valve calculation issues
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Dear experts, we are a semiconductor company that supplies chemicals, and we have pressure vessels used to store various chemicals such as sulfuric acid, hydrogen peroxide, and other similar substances. Nitrogen is used for pressurization, and the tank is equipped with a safety valve. Now there is a question: when calculating the discharge area of the safety valve, should it be based on the volume of liquid inside, or on the volume of nitrogen?
The volume increase resulting from the decomposition of the medium contained in the tank when heated should be taken into consideration; nitrogen serves only as a nitrogen seal, so the leakage rate of the medium inside the pipes under possible fire conditions must be calculated.