Effects of temperature on noise reduction in diesel particulate filters (DPFs)

Abstract

Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.The temperature of exhaust gasses plays a significant role in the DPFs' performance. DPF is a device that is responsible (in addition to exhaust emissions reduction) for making noise reduction (which is usually measured by noise reduction factor (NRF)) of noise resulted from engines. Temperature of exhaust gases has a considerable effect on such filters performance. Temperatures' effects on the performance of those filters is studied and investigated here, and a relation between noise reduction factor and temperature will be constructed. Analytical or/and numerical techniques will be used here to execute the study to construct the mentioned relation.