In this work, erosion tests were performed to study the behavior of an aluminium alloy known as AISI 6061-T6 against the impact action of aluminium oxide abrasive particles. This material was selected because of its high ductility and tenacity. An erosion rig based on that in ASTM G76-95 was used to conduct the tests. The alumina particles had a particle size between 300 and 400 µm. Four incident angles, 30˚, 45˚, 60˚ and 90˚ were used to conduct the erosion tests. The particle velocity and the abrasive flow rate were 24 ± 2 m/s and 63 ± 0.5 g/min. The room temperature was between 35˚C and 40˚C. Chemical analysis of the material and abrasive particles were obtained using energy dispersive X-ray analysis (EDS). SEM images were employed to identify the wear mechanisms, which were characterized by high plastic deformation. The erosion rates were obtained and the results indicated that the maximum erosion damage was achieved at 30˚ reducing progressively at normal incidence.

Currently in power plants what is sought are higher thermal efficiencies, which is why combined cycle plants have been chosen, since they make better use of fuel, producing greater net power, all this It has led to innovative modifications to combined cycle power plants, improving their performance. In this article the thermodynamic analysis of a combined cycle (Gas-Steam) without and with Afterburner is carried out, in said analysis adequate thermodynamic indices have been used and the calculations have been carried out taking into account the state of the art for gas turbines and the typical values for steam cycle quantities. The purpose of this study is to analyze the combined plants where the exhaust gas at the outlet of the gas turbine is used in a waste heat recovery boiler to produce steam that is expanded in a turbine and discharged in a condenser. Since the air-fuel ratio in the combustion chamber of a gas turbine is higher than the stoichiometric, fuel can be added in the boiler (Afterburner) to increase steam production or to improve the quality of the steam produced.

In this project some practices of mineral oil were made to determine the quality for its application in the electrical industry. Then the practices were developed in the laboratory of the Faculty of Mechanical and Electrical Engineering at Universidad Veracruzana using the Megger OTS 60 PB equipment, according to the current IEC 60156 and ASTM D1816 standards, new oil was used in a first analysis which proved to be of correct quality according to the standard, In the second case, oil polluted by the environment was used and it was of less quality since it did not pass the test according to the standard, and finally, degraded oil was used, which was less quality (15°C) and heat was supplied up to 40°C, taking readings at 40°C, 35°C, 30°C and 25°C, giving favorable results due to the influence of the temperature on the mineral oil. In conclusion, according to the results of the test and the comparison with the parameters of the standards, the OTS60PB equipment operates correctly and the results of the equipment are reliable and it can be recommended that mineral oil can be used in transformers.