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The limited thermal efficiency in internal combustion engines provides a partial transformation of fuel energy in net power. The heat lost through the exhaust gases represent a significant portion of energy looses. The Seebeck Effect is the direct conversion of temperature differences between two dissimilar metals or semiconductors into electrical voltage. The present study demonstrates the application of thermoelectric generators technology in Baja SAE vehicles to recovery exhaust heat looses, using thermal energy converter devices. The electrical energy produced in Seebeck Effect Cells, assembly in engine exhaust manifold, is conditioned and applied in vehicle batteries and supply energy consumption during vehicle operation. This action could increase the vehicle energy efficiency by the recovery the thermal energy dissipated. This extra power supply makes possible the reduction of on board batteries charge capacity and also recharges them without external power sources.

When analyzing vibrations in internal combustion engines, it is noticed that the greatest sources of vibrations are generated by combustion and mechanical forces. These forces occur over a wide frequency range and are transmitted to the outer surface of the engine through several paths, such as through the piston mechanism, connecting rod, crankshaft and engine block. As a result of the action of these forces, the external surfaces of the engine are subjected to vibrations of various amplitudes. Vibration problems in internal combustion engines are common due to the wide variety of parts and components that make up such engines. The crankshaft undergoes transverse, longitudinal and torsional vibrations due to the dynamics of the stresses sustained mainly during the combustion phase of the engine.