Інформаційна технологія оцінювання теплоізоляції багатошарових стін

Abstract

In today's conditions, the problem of insulation of surfaces is very relevant for wide circles of the population of Ukraine. Everyone knows that surface insulation allows to reduce heat transfer due to the use of materials with low thermal conductivity. In the absence of permanent heating, the issue of thermal insulation of cylindrical pipes is very relevant. The issue of insulation selection and structural design requires a complex and professional approach. To calculate the problem of thermal insulation, a specialist needs to have a toolkit for calculating the temperature field and saving the obtained results for further analysis. The work presents the developed information technology that allows a specialist to calculate the temperature field for multilayer cylindrical pipes. The object-oriented programming language C# and the Microsoft Visual Studio integrated development environment were used to build the IT toolkit. It should be noted that when making calculations, there is no need to specify the characteristics of pipe and insulation materials, since all data is stored in the IT database. The object-relational database management system - PostgreSQL was used to build the data module. After the calculations, all the built calculation models and the received numerical models of the results are also stored in the database. This allows you not to recalculate if necessary, but to use the data that is already available. To analyze the results, the developed toolkit allows you to plot temperature changes of a multilayer wall. At the same time, the user selects the necessary calculation models independently from IT database data. The DirectX three-dimensional graphics development tool package is used for visual representation of numerical model calculations. The authors developed an algorithm for constructing a color temperature field according to the calculations. Red is chosen for the highest field temperature, and blue for the lowest temperature. A feature of the proposed information technology is that its functionality allows three users with different levels of access to work with the toolkit: a database administrator, a mathematical model construction engineer, and a numerical model analysis specialist.