Regarding the gas flow rate issue
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For the gas inside the pipeline, if the gas pressure increases, does the volumetric flow rate decrease? But hasn’t the mass flow rate remained unchanged? For example, when hydrogen burns in chlorine to produce hydrogen chloride gas, if the valve controlling the flow of hydrogen is opened wider, the hydrogen flow rate increases, but the hydrogen pressure decreases (since the total amount of hydrogen available remains constant). Does this mean that the amount of chlorine needed also has to be increased, or is no adjustment necessary? Thank you
According to the reaction ratio, the chlorine flow rate might need to be increased
In material balance, the standard cubic flow rate of Nm3/h is used; by combining this unit with the material composition, it is possible to determine the mass, thus ensuring compliance with the law of conservation of mass. The actual volume can be calculated from the equation of state to obtain the standard volume; under normal conditions, increasing the valve opening will increase the flow rate. If there are multiple flow-limiting elements (including valves) on a pipeline, and if it is other elements that determine the flow limitation, opening or closing a particular valve may have no effect on the flow rate
”If the gas pressure increases, does the volumetric flow rate decrease? ” “But hasn’t the mass flow rate remained unchanged? “ These two of your questions require one more condition. Flow rate. Just like in the various states of arithmetic problems, when 0=1 ； When 0＞1 ； When 0＜1 ； Time. Change your question: How does the pressure change when the flow rate and velocity remain constant? ； How does the flow rate change when the pressure flow velocity remains constant? ； Once the relationship among the three is clearly understood, that will be your answer. For reference.