Exhaust gas recirculation (EGR) is the main method for reducing emissions of NOx and fine particulate matters in auto exhaust. With the environmental problems caused by exhaust gas turning increasingly serious, regulations for vehicle emission are becoming more and more stringent, which also putting higher requests forward the heat transfer capability of EGR cooler.This article detailed the basic design and calculation methods of EGR cooler as well as basic calculation principles including mean temperature ...