Could you give some guidance on the formula for calculating the noise level of control valves?
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I’ve found some on Baidu so far, but they seem to have issues. Below is the most comprehensive version; however, it was found that there is an issue with the formula used to calculate the liquid volume under blocked flow. The example from above is pasted below: The result obtained from this calculation is completely incorrect – 29lg should not turn into 292*. Please help me take a look. Also, if the experts have any other calculation formulas, please let me know. Or if there’s any place that discusses it, you can also give me a link to take a look. Or an Excel spreadsheet would work for me too. No need for software. I want to calculate it myself. *yuanzhuxucheng@126.com is my email address. Thank you all.
This formula has been abandoned at present. Using Mersoni’s formula gives a decent result.