How to calculate the gas consumption and the instantaneous maximum amount when using gas batches to pressurize and depressurize storage tanks
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This post was last edited by Desert Fish on 2020-12-29 at 23:35. Request for help: ? ?? ?It is known that a tank has a volume of 3 m3, and gas is used to pressurize and depressurize it. The gas pressure is 7 kgf/cm2, and its density is 1.4 kg/m3. Each pressurization cycle takes the pressure from 0 kgf/cm2 to 3 kgf/cm2, while each depressurization cycle takes the pressure from 3 kgf/cm2 to 0 kgf/cm2. How can the amount of gas consumed and the maximum instantaneous amount be calculated? ? Thank you. Please provide the formula
It is recommended to pick up a book on \"Principles of Chemical Engineering\" and take a look; it can serve as a reference.
Can’t we just use an ideal equation of state for the calculation? The actual volume V of the storage tank is constant; according to the ideal gas law, V = nRT/P, and it is possible to determine the amount of moles of gas in the tank at normal pressure and at a pressure of 3 kilograms respectively
The volume of air intake per cycle is 3*3=9 Nm3. It is difficult to estimate the maximum instantaneous value; first, estimate the cross-sectional area at the minimum flow restriction in the pipeline, and then multiply it by 0.7 times the speed of sound
The volume of the gas phase space, and then at different pressures using PV=NRT?