In a closed container with equal amounts of gas and liquid, how can ASPEN be used to simulate the change in pressure with temperature?
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In a closed container with equal amounts of gas and liquid, how can ASPEN be used to simulate the change in pressure with temperature? For example, in a 10L container with 5L of water and 5L of nitrogen, at an initial temperature of 100°C and pressure of 5MPa, what is the pressure change during the temperature increase from 100°C to 200°C?
It is a closed system involving a dynamic process, so dynamic simulation is required.
It is a dynamic process, so dynamic simulation is required.
That’s absolutely correct; dynamic simulation is needed, as steady-state conditions do not take space into account.
Steady state is also possible; that involves creating a sensitivity analysis to change the temperature, and a design specification to change the pressure while keeping the volume constant.