The graphical model shows that the temperature distribution inside the refrigerator is non-uniform, with lower temperatures near the evaporator and higher temperatures near the door and corners. The contour plots and surface plots provide a clear visualization of the temperature distribution, allowing us to identify areas of high and low temperature.
The slope of the cooling phase indicates the compressor’s efficiency and refrigerant charge. A shallow slope suggests low refrigerant or a failing compressor. The slope of the warming phase reveals the insulation quality—a steep rise indicates poor door seals or thin insulation. Thus, the graph transforms abstract thermal concepts into measurable, visual data. model grafic temperatura frigider
For technicians, modern refrigerators with data logging capabilities allow them to download a 24-hour temperature graph. This graphical evidence can pinpoint intermittent faults—such as a failing start relay—that would otherwise require guesswork. In medical or pharmaceutical refrigeration, regulatory standards (e.g., CDC guidelines) require maintaining temperature within a narrow band. A graphical model with alarm thresholds ensures compliance and patient safety. The graphical model shows that the temperature distribution
where T(x,y,z) is the temperature at a given point (x,y,z), T0 is the ambient temperature, and Lx, Ly, and Lz are the dimensions of the refrigerator. A shallow slope suggests low refrigerant or a
