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Abstract

The aim of this paper is to introduce a design of Centrifugal Diesel Particulate Arrestor with better efficiency and lower cost. The design was theoretically modeled and experimentally verified. A commercial Diesel Particulate Arrestor was selected for comparison in terms of embers collection efficiency theoretically and then verified experimentally. Also, the pressure drop for the new designed Diesel Particulate Arrestor and the commercial one was compared experimentally. The theoretical modeling of collection efficiency was carried out using Computational Fluid Dynamics (CFD) and Particle Tracing for Fluid Flow modules based upon the Reynolds-Averaged Navier Stokes (RANS) equations and the Newton's Second Law. The two Diesel Particulate Arrestors performances were measured according to Standard BS EN 1834-3:2000 through a special designed test rig. Three different flow rates were selected for the experimental verifications to simulate the real engine flow rates at different engine loads. As in terms of large particles collection efficiency, the new designed Arrestor is better than the commercial one by 13.6% and in terms of pressure drop shows lower pressure drop than the commercial one by 89.8%. In terms of cost the new designed Arrestor is cheaper than the commercial one by 37%.