A practical design integration method for hierarchical architecture type product system (A lean development process in domestic refrigerator energy saving design with a combination of digital tool, real experiment and humanistic collaboration)

Faced with a changing about global environmental issues, there are great expectations to optimize energy saving design in home appliance products. For effective energy saving design in Refrigeration System, integrated design method is highly needed to understand detailed physical behavior of a whole product based on careful study of the interactive influence of each device (e.g., Insulator layout design, Heat exchanger, Compressor and FAN flow rate balance, etc.). Although 1D and 3D-CAE tool become a part of engineer's daily routine in recently, effective integrity interface between the Digital tool and real humanistic collaboration process is the most important key to accomplish the innovative synthesis. This paper presents a practical lean development method using set-based design method which combines digital tool with human tacit knowledge for architecture type product having hierarchical interaction between system and subsystems.