Hydraulic Analysis And Researeh Of Ring Pipe Network With Multiple Heat Sources Based On VB.NET

Multiple heat sources in ring pipe network compared to traditional forms of heating network, has many advantages. With the development of central heating systems, it has become a new trend. However, the lack of corresponding design, construction, management, regulation and so on, restricts the development.Therefore, the research about hydraulic conditions of multiple heat sources in ring pipe network is very necessary.As the multiple heat sources in ring pipe network is more complicated than the general. If we use the traditional method to calculate, we will waste our time and lose the desired results. This paper takes the features of multiple heat sources in ring pipe network into account, and summarizes the characteristics of the existing calculation software,. It developes a calculation procedures specifically for the multiple heat sources in ring pipe network.This paper introduces the basic concepts of graph theory and the matrix of fluid transmission and distribution network. With the analysis of the hydraulic conditions and the use of the basic loop method and Kirchhoffs law, the mathematical model to determine the solution method has been established. This programming language is VB.NET, and use Visual Studio as a platform. The user simply enters the pipe network of the original data table, and click the button,and then the program will be able to complete the calculations and get the results. The steps of procedures and the implementation process have been introduced in this paper, in addition to the main part of the program source code.Finally, it gives an example, using this program to calculate the flow rate and pressure drop in the instance, and the results are compared with the actual values. The error is within reasonable limits, thus proving that the model is correct and reliable. It has some significance to the analysis about hydraulic conditions of multiple heat sources in ring pipe network.