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[chemluv]

Hello Everybody,

I am trying to use hierarchy blocks for a complex simulation in aspen plus. Currently i have divided process in 4 different simulations since i wanted to use different thermodynamic properties for different section. Now i want to have these pieces of simlations into single main flowsheet. I can use hierarchy and sectioning the flowsheet. My problem is how to connect different sections if i have different stream class (i can use mixer and cichange. but cichange is giving mass balance error). also how can i check in results which thermodynamic properties have been used for different sections.(just to make sure each block is using specified thermodynamic properties). What happens to a stream when it goes from one section to other and changes its thermodynamic basis.