Diseño y análisis de sistemas energéticos.

Abstract

Through this project, a modular software DT-Ref is developed for obtaining energy, entropy and exergy thermodynamic graphs of a R134a vaporcompression refrigeration cycle. The computer language selected is Python. Typical refrigeration compression cycle input data is required including pressures, isetropic compressor efficiency, among others, so that useful variables for determine exergy values such as ambient temperature and atmospheric pressure. The interface shows a section for evaluated properties as numeric values for each thermodynamic state into the cycle. It also shows pertinent values around the graph itself. The developed software interactivity occurs when the user changes the input variables and after, selects one of the three graph options generating a visible change in the graph. This let the user to develop visual comparisons when changing one or more input data while showing in this way the sensibility effect. DT-Ref results are compared with analytical results to stablish the relative error showing high precision and consistency. This software will help thermodynamic course students as an additional tool in the learning process.