Desarrollo de una herramienta informática para evaluación del comportamiento termodinámico de sistemas de refrigeración por compresión de vapor con refrigerantes naturales: isobutano.

Abstract

The purpose of this project is to develop a software using open source coding, to analyze the thermal behavior of the refrigerant R600a (isobutane). In this case, proceed to analyze a test bench of a split air conditioning system, which operates with refrigerant R290. In this way, a comparative analysis of the high and low pressures, detected in the equipment, is carried out to obtain an approximation to the ideal values of R600a. The R600a refrigerant analysis software will allow the user to obtain the P-h and T-s diagrams in real time, so that it can be compared to the ideal refrigeration cycle diagrams. In addition, computed data of the main parameters to study the refrigeration cycle will be shown. The communication between the test equipment and the software to be developed, is established by using of an Arduino system previously installed in the air conditioner. From this system, the temperature data will be obtained through eight thermocouples distributed in the equipment. In addition, there will be a theoretical review and evaluation section, which will allow a previous preparation to the study of the refrigerant. Finally, the software will be installed at the Centro de Perfeccionamiento en el Uso de Refrigerantes (CEPUR) of the Escuela Politécnica Nacional, which will serve as a study and training tool for students, lecturers, and refrigeration technicians.