Bar and Plate EGR Cooler Simulation and Experimental Verification

In order to get further understanding of the performance of bar and plate cooler used in the heavy-duty diesel engine, simulation method was employed to study the key parameters and their relationships of the typical bar and plate EGR cooler. It was found that the turning point number of the plate was 13. In addition, an EGR cooler test and analysis system was built to verify the parameters of the modified cooler. It was found that the experimental values of outlet temperatures were about1.17% smaller than the calculated values averagely, while the overall heat transfer coefficient were 3.1% larger.