Modelling and Simulation of Twin-Bed Pressure Swing Adsorption Plants

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Modelling and Simulation of Twin-Bed Pressure Swing Adsorption Plants ( modelling-and-simulation-twin-bed-pressure-swing-adsorption- )

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5 Validation of the mathematical model 64 Fig. 5.3.1-3 Experimental temperature profiles along the adsorbent fixed-bed at reference process conditions: (a) at product purity of 1000 ppm O2, (b) at product purity of 10 ppm O2 Therefore, taking into consideration observed effects of controlled flow resistances in the piping system, their influence on PSA performance indicators is studied numerically. In order to do so, only specific flow coefficients Cv of valve models V, representing flow resistances in considered pipelines, are adjusted; while all other valve models V in the process simulator representing controlled flow resistances, are simulating the action of the ball valve. This strategy implemented in process simulator illustrates the corresponding method applied to experimental research. Introduced Cv values are selected according to the strategy given in Appendix 10.6. Results presenting the influence of individually adjusted flow resistances in particular pipelines are shown in Tab. 5.3.1-5 and Fig. 5.3.1-5. Fig. 5.3.1-4 Visual demonstration of the oxygen MTZ development with related favourable pressure equalisation strategy: (a) at product purity of 1000 ppm O2, (b) at product purity of 10 ppm O2

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