Estudo da utilização de intercooler em um motor Fiat Fire 1.0 turboalimentado

Abstract

This study aimed to evaluate the effect of installing an air-to-air intercooler on a turbocharged Fiat Fire 1.0 engine, focusing on thermal efficiency and overall engine performance. Experimental tests were carried out on a chassis dynamometer, measuring intake air temperature (°C), boost pressure (bar), power (WHP), and torque (kgf.m) before and after the installation of the component. The results showed that the use of the intercooler led to an average reduction of approximately 22°C in the intake air temperature, representing a decrease of more than 20°C under full-load conditions. This temperature drop improved combustion quality and enhanced thermal stability. The maximum performance gain obtained was 4.9% in power (4.09 WHP) and 9.8% in torque (1.23 kgf.m). The thermal effectiveness of the intercooler was calculated as 84%, demonstrating its high capacity to dissipate the heat generated during air compression. It is concluded that the use of an intercooler significantly contributes to increasing engine performance and efficiency, in addition to reducing the risks of detonation and improving system reliability. The study reinforces the importance of this component in turbocharged engine applications, particularly in projects that seek higher efficiency without compromising durability.