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Development of the Structure Optimization Program for a Membrane module (II)

○Takurou　Nishimura（School of Engineering, The University of Tokyo），Funatsu Kimito（School of Engineering, The University of Tokyo）

The system for designing the gas separation membrane module, which consists of three engines, was developed. The engine of creating a separation modular structure generates the arrangement coordinates data of a separation unit by GUI, and generates the input file for hydrogen recovery rate calculation. Since this engine can respond to a cylinder and square pillar type module outward form and can respond to unit arrangement of a triangular lattice or a square lattice, the output of the unit arrangement coordinates of general multi-pipe set structures (separation, extraction, heat exchanger, etc.) is possible for it. The engine of performing hydrogen recovery rate calculation uses a commercial computer fluid dynamics (CFD) package, receives input data from a modular structure generation portion, and outputs a convergence calculation result to a file. The engine, which optimizes modular structure, evaluates output results by CFD, and repeats processing in which the structure parameters generated by the genetic algorithm and output results are stored in a database. In the structure design of a separation membrane module, it became clear that the genetic algorithm could optimize efficiently about modular size and element size, or its arrangement.