Calculation of emergency discharge volume for atmospheric and low-pressure storage tanks
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I’ve found that the calculations for the leakage rate of storage tanks under normal and low pressure vary across different sources; I would appreciate some guidance from those who are experts in this field. For API2000, version 5, there is an online version that combines Chinese and English text. For above-ground, non-frozen vertical storage tanks with a wetted area greater than 260, and a design pressure ranging from 0.07 to 1.034 barg, the formula used for calculating the discharge volume can be found in API2000 version 7; see formula 16 in the screenshot. The same formula is used to determine the heat absorption amount. I would appreciate it if experts could advise me on how to determine this discharge volume
The screenshot of the fifth version from the post wasn’t uploaded; it’s added here
I’m sorry for disturbing everyone; I now know the reason!
Generally, this can be done by looking up values in a table or through calculations, but the results can vary significantly. The simplest approach is to use the wetted area to consult a table and determine the estimated emission volume; for more accuracy, calculations can be used as well. But when the wetted area is very large... it basically comes down to the same thing