Modeling Physical Operating Principles During Search Design of Cooling and Refrigerating Systems

The chapter describes a new method of search design of cooling and refrigerating systems, the basis of which is represented by a graph model of the physical operating principle based on the thermodynamic description of physical processes. The method can be applied as a means of enhancing the labor efficiency of designers at the early stages of designing owing to reduction in labor expenditures when choosing the concept of an engineering system for refrigeration and also as a methodical support for the development of computer-aided design systems. The mathematical model of the physical operating principle has been substantiated, and the basic abstract theorems of a relatively semantic load applied to nodes and edges of the graph have been represented. The graphic representations of the physical operating principle model of physical phenomena for cooling systems have been developed. The necessity and the physical operating principle, enough for the given model and intended for the considered device class, were demonstrated by the example of an absorption cooling and refrigerating plant. The sequence of drafting of the POP model has been presented. The structures of data have been shown in the form of relative tables.