March 26, 2021

Exhaust Gas Recirculation

Exhaust Gas Recirculation (EGR) System – Pedagogy Zone

Mechanical /

Excessive nitrogen oxides (NO2) form when peak combustion temperature exceeds 1950°C. To lower the combustion temperature, many engines have EGR system. It recirculates about 10% of the inert gas back into the intake manifold The cooler exhaust gas absorbs heat from the much hotter combustion process. It reduces peak combustion temperature and lowers the formation

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