Análisis exergético de la planta térmica de la Universidad Santo Tomás

Abstract

The study in favor of obtaining real and optimal results about the behavior, operation and operational availability by means of which the different equipments that are part of a thermal cycle are governed, give rise to theoretical foundations that, supported by experimental procedures, lead to obtaining of said results; mentioned this; The present work carries out the exergy analysis of the thermal plant of the Santo Tomás University. This consists of a didactic equipment where students who take subjects belonging to the thermo-fluid core recognize and apply the theoretical knowledge acquired in the classrooms in relation to a Rankine thermodynamic cycle. Among the characteristics that the plant has, one of the most important is that it allows the variation of the speed required in the turbine from the operation of a central PLC. Having clear the principle of operation of the system under study, it should be noted that at present there is no detailed study of the capacity of the plant and its operating ranges, in such a way that the teacher can change the input parameters and know the expected output parameter values. This is the point where the need to carry out a study arises which allows obtaining such information that is not known today. This is why in this work experimental data were taken on the operation of the plant at three speeds of rotation of the turbine, and followed by an analysis based on the first and second laws of thermodynamics. Based on these results, thermal efficiencies below 5% and powers generated in the turbine of the order of 2 to 3 kW are evidenced. Based on the results obtained from the analysis of both the first and second law, the exergy analysis was implemented which will include that the main source of irreversibility’s of the system is the combustion process in the boiler, mainly because there is no state control efficient equipment, followed by heat loss processes in the turbine and condenser Key