Análise de um sistema de refrigeração de expansão indireta

Abstract

This work presents an analysis in an industrial refrigeration system of the mechanical engineering course of Maranhão State University. A restoration of this system was necessary for the achievement of this project, as it was found in the same way. In order to understand how the cooling system operates in question, a historical approach on cooling, heat transfer, cooling cycles, psychrometrics, refrigeration systems and components of the system are needed to be carried out. Refrigeration of the machine. The data collection was carried out through the system accessories and also through electronic equipment belonging to the refrigeration laboratory. For its realization it was necessary to follow certain procedures: such as vacuum in the system and coolant load. During the vacuum operation in the system we can perceive two things, one that this system has a chronic leakage, i.e. a leak that even if it is remedied will eventually start in the same way with time, and the other that: the valve that opens the compressor's registry was In this way, you cannot use the low-pressure system. With this all the procedures were performed by the high-pressure system. The data collection worked for each water flow, there were three air flows, so to make an analysis of its capacity. Having duly accomplished data collection and analysis of the results can be realized that the system has a low capacity, but during the seventh water flow it had an increase in its capacity