Hello everyone, today I'd like to share my first experience in creating a Dymola model (Behavior Modeling) for hydraulic calculations based on a piping and tubing systems design schematic specifically for a building electromechanical engineering project. The project serves as the backdrop for this demonstration: it's a public building, a science and technology museum complex, located in Zhongxiang City, Hubei Province, China. I have established a schematic model for the building's air-conditioning water system and then generated a simulation model from it.

Prior to this process, I configured and developed a library of electromechanical schematic symbols along with the definition of piping resources.

During this process, it was necessary to establish a mapping relationship between the 2D (schematic) and the Modelica system simulation model.

In practical application, there were several issues encountered and areas for further improvement:

The generated model had disorganized routing, with some sections even uncomputable.

There was distortion in the icon scaling.

The generated model required manual adjustments.

The schematic diagrams were somewhat limiting in electromechanical design.

However, the simulation tests I conducted were actually aimed at enabling forward- design of 3D electromechanical within a 3DE platform. While it remains challenging to promote this functionality to designers for hydraulic calculations at present, the ability to conduct hydraulic calculations directly on 3D models would undoubtedly be a favorable option.