Complex water system analysis engine CAENAE-W: Principle, development and verification

Presents the basic principle, user interface, and verification results of the complex water system analysis engine (CAENAE-W). Based on the object-oriented method, CAENAE-W establishes object-oriented models for all components in a water system, including pipes, chillers and pumps, and defines all the components as a certain type of specific object. According to the initial boundary conditions and the fluid flow state, CAENAE-W calibrates the friction coefficient of all pipes through the appropriate friction coefficient calculation formula, and iterates the hydraulic calculation until the required solution accuracy is achieved. To validate its accuracy, develops a calculation software based on the B-S architecture, and compares the CAENAE-W with the dynamic simulation software Dymola based on a specific case. The results show that the calculation error is less than 1%, indicating the high accuracy and engineering application potential of the CAENAE-W.