A gas supply system that is easily assembled andor installed and includes an initially flexible clamping system that allows for the gas supply system to adapt to the gas components. The CO2 rich absorbent is further fed to a desorber where CO2 is removed from the absorbent, and the absorbent essentially free of CO2 is recirculated to the absorber and desorbed CO2 gas is discharged off. Register rotation prediction is achieved by setting the register rotation of future iterations of a software loop to be a function of the unarchitected frame marker registers. Governing partial differential equations, including a viscosity term, a surface tension term, and a level set convection equation for two-phase flows, are derived on the quadrilateral grid and then transformed to the computational space for application on the uniform square grid.