Utilização de um reator pirolítico retroalimentado (GEET) para melhoria da eficiência de um grupo motor gerador a gasolina

Abstract

This papers presents a new approach in terms of energy efficiency for the generation of electricity using a small Generator Motor Group (GMG), powered by internal combustion (fueled with water and gasoline), using pyrolytic reactor technology (GEET ), Aiming at the global reduction of consumption, temperature stability and improvement of the cooling, with consequent reduction of the cost of kW produced. In order to do so, the aim was to design and construct a pyrolytic reactor (GEET), based on available literature, as well as related scientific technical articles. This reactor, when in operation, obtains extra energy, necessary for the pyrolysis process, of the thermal energy produced by the combustion of the exhaust gases. This feature allows a mixture of water (fractured in hydrogen gas and oxygen gas) and gasoline to be used as fuel. To determine the efficiency of the GMG, working with the GEET, two well-defined experiments were performed. The first experiment was characterized by the operation and use of the GMG equipped with a new carburetor (factory original) and which, when in use, used only ordinary vehicular gasoline as fuel. The second experiment was characterized by the removal and replacement of the carburetor by the pyrolytic reactor (GEET), which allowed the use of water and gasoline (vehicular and aviation) as fuel, according to the proportions defined in the methodology. In both cases, temperature stability, electric charge behavior (fp = 1), fuel consumption (common gasoline and aviation) and, above all, the efficiency of the system were analyzed. It was possible to observe a certain thermal stability of the main structural block of the engine (block, head, head cover and spark plug), both in operation with the carbureted system (conventional) and with the GEET - Pantone system. Regarding the consumption, it was possible to verify that the GMG, when reaching the voltage near the nominal (115Vac), for the same type and value of load fed, the GEET device, applied was not efficient when using water and common gasoline for vehicular use , Resulting in an increase in fuel consumption, because in the process of mixing common gasoline with water (in the proportions defined by the methodology), this increased water inhibited the burning power of the anhydrous alcohol (dissolution) at the same time as There was no volatilization / atomization of the mixture, even with the return of the exhaust gases to the mixture reservoir (bubbling), which, at worst, could have caused an increase in the compression ratio, probably improving performance Of the set and reducing the operating temperature in the combustion chamber. However, when using the GEET-Pantone system with aviation gasoline, what it observed was a greater efficiency (%) for aviation gasoline in the proportion of 25/75 (twenty-five percent of aviation gasoline and seventy Five percent water, respectively), with an average yield of 8.46% versus 6.44% using GEET-Pantone only with aviation gasoline. The results obtained are not conclusive, yet, due to the relevance and innovation of the technological proposal, it justifies further studies of the subject.