MAJOR COMPONENTS OF ASPEN Unit operations(BLOCK) model library o Physical properties system E Physical properties models (density, enthalpy, VLE, etc.) E Pure component and binary pair databases E Estimation capability for missing values Q Flow sheet convergence capability for recycle processes Q Control capability Design Specs) 10/1899 ASPen Introduction10/18/99 ASPEN Introduction 6 MAJOR COMPONENTS OF ASPEN u Unit operations (BLOCK) model library u Physical properties system ð Physical properties models (density, enthalpy, VLE, etc.) ð Pure component and binary pair databases ð Estimation capability for missing values u Flow sheet convergence capability for recycle processes u Control capability (Design Specs)