Calculation of venting time
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There is now such a venting condition: volume of 42,000 m3, medium being N2, pressure of 105 kPaA; the gas is vented to the atmosphere through 4-inch pipes until equilibrium with atmospheric pressure is achieved. The pipeline length is 12 m. Due to the low pressure difference, it is not in a critical operating condition, so the formula provided at “http://bbs.hcbbs.com/thread-854390-1-1.html” cannot be used. For sub-critical operating conditions, how should the release time be calculated? Thank you. . .
For subcritical operating conditions, the release time can be calculated under pressure
Could you please explain specifically how to calculate it? Thank you