Diseño y optimización del múltiple de escape de un motor Chevrolet Corsa 1300cc mediante simulación computacional y su validación en un dinamómetro de rodillos

Abstract

The objective of this technical project was the design and optimization of the exhaust manifold of a Chevrolet Corsa 1300cc engine through computer simulation and validation on a roller dynamometer. Starting from the application of multicriteria methods of the application of computational software for the selection of the best layout of the different models analyzed in the lD simulation software, obtaining two layout multiple designs, 4-2-1 and 4-1 that meet performance and quality specifications to improve values of torque and power in the motor, for its subsequent construction following the design rules, which were initially drawn using the SolidWorks modeling software. Applying the manufacturing processes of tubular structures, when implementing each the exhaust manifold in the vehicle, three tests were carried out on a roller dynamometer to obtain an average of each one and later be able to make the comparison with the results of the original exhaust manifold design Thus, it was possible to determine that the most favorable results obtained were with the 4-2-1 configuration design, a maximum power of 79.77 HP was determined at a speed of 5800 rpm, which, when compared with the results obtained using the original exhaust manifold represents a power gain of 6.97%, determining that the design is acceptable and meets the parameters indicated for this vehicle, concluding that this project is viable for the production of auto parts, applicable to light vehicles, in a driving cycle on the highway. Therefore, for future research it is advisable to carry out a correct calculation for the design and proper manufacturing of each of the exhaust manifolds, guided by design and simulation processes, optimizing the final result to meet the manufacturer's requirements.