This article presents the study of cycle efficiency, exegetical efficiency net work and exergy destroyed by components with the assistance of Power Cycle V.2.0 software, an academic program focused on the practical development of the learning of the power cycles whose language was developed in MATLAB. For the Brayton cycle case,the case studies were based on the behavior of the net work and the efficiency of the cycle with respect to pressure variation at different temperatures, In the same way, the exergy that destroys each component at different pressure ratios was studied, and finally, the exegetical and cycle efficiency at various ratios of pressure and temperature at the turbine inlet was analyzed. From these cases, it was obtained that the thermal efficiency increases as the pressure ratio and the temperature of the turbine inlet increases. This efficiency improves by approximately 12% compared to the initial conditions. On the other hand, a maximum net workload occurs when the pressure ratio is 10 and the temperature is at 1500 K. In addition, the turbine and the compressor were the most energy-destroying components in most cases.
In this research, the implementation of an integrated system composed of a dual-fuel engine (Diesel-Hydrogen), a PEM electrolyzer and a thermoelectric generator is envisioned. In order to know the optimal operating conditions of each sub-system, the exergetic efficiency and destroyed exergy were studied. It was estimated that for the dual combustion engine, the destroyed exergy would increase as a function of the concentration of methane in its mixture. By varying the electrical input to the electrolyzer, it was found that when the input current was 2A, the exergetic efficiency would go up to 92.59%, while for a current of 5A, the efficiency decreased in 51.80%. Finally, the exergetic efficiency of TEG decreased by increasing the hot flow temperature; 86.68% of the decrease in efficiency occurred for temperatures between 470K and 510K. On the other hand, the destroyed exergy increased linearly with an increase in the inlet temperature of exhaust gases.
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