EPJ Web of Conferences
Volume 25, 2012EFM11 – Experimental Fluid Mechanics 2011
|Number of page(s)||8|
|Section||Experimental Fluid Mechanics 2011|
|Published online||16 April 2012|
Implementation of an experimental pilot reproducing the fouling of the exhaust gas recirculation system in diesel engines
Institut de Mécanique et d’Ingénierie de Bordeaux (I2M), UMR 5295, département TREFLE, Av. des Arts et Métiers, 33405 Talence, 33607 Pessac, France
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2 PSA Peugeot Citroën, 18, rue des Fauvelles, 92250 La Garenne-Colombes, France
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The European emission standards EURO 5 and EURO 6 define more stringent acceptable limits for exhaust emissions of new vehicles. The Exhaust Gas Recirculation (EGR) system is a partial but essential solution for lowering the emission of nitrogen oxides and soot particulates. Yet, due to a more intensive use than in the past, the fouling of the EGR system is increased. Ensuring the reliability of the EGR system becomes a main challenge. In partnership with PSA Peugeot Citroën, we designed an experimental setup that mimics an operating EGR system. Its distinctive features are (1) its ability to reproduce precisely the operating conditions and (2) its ability to measure the temperature field on the heat exchanger surface with an Infra Red camera for detecting in real time the evolution of the fooling deposit based on its thermal resistance. Numerical codes are used in conjunction with this experimental setup to determine the evolution of the fouling thickness from its thermal resistance.
© Owned by the authors, published by EDP Sciences, 2012
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