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1 2022

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Assessment of retrofit devices for the Horizon 2020 Cleanest Engine and Vehicle Retrofit Prizes

Giechaskiel Barouch, Suarez-Bertoa Ricardo, Melas Anastasios, Selleri Tommaso, Maggiore Maurizio

Combustion Engines

2022

R. 61, nr 3

7--34

The Horizon 2020 prizes aimed at the development of retrofit and engines that would reduce pollution. The Retrofit prize had a winner, while the Engine prize not. In this paper we present the innovations that were tested at the Joint Research Centre (JRC) of the European Commission, and not awarded. One was a “condensation” aftertreatment device, two were devices inserted in the fuel supply system, and one a selective catalytic reduction (SCR) for NOx system. The testing of the “condensation” aftertreatment device showed that it could not with-stand the high exhaust gas temperatures. The results of the two fuel systems showed that they could not control efficiently the NOx emissions. The reductions of the pollutants were negligble for the levels that the prizes were aiming. The SCR system did not achieve any significant reduction of NOx, probably due to a malfunction of the device.