Reducing NOx Emissions through Microwave Heating of Aftertreatment Systems for Sustainable Transport in the Inland Waterway Sector

Sorin Vasile Savu, Robert Cristian Marin, Andrej David, Adrian Bebe Olei, Ilie Dumitru, Daniela Tarnita, Andrea Maternova and Ionel Dănuț Savu
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Sorin Vasile Savu: Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
Robert Cristian Marin: Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
Andrej David: Department of Water Transport, Faculty of Operation and Economics of Transport and Communications, University of Zilina, Univerzitná 8215/1, 01026 Zilina, Slovakia
Adrian Bebe Olei: Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
Ilie Dumitru: Department of Automotive, Transport and Industrial Engineering, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
Daniela Tarnita: Department of Applied Mechanics, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania
Andrea Maternova: Department of Water Transport, Faculty of Operation and Economics of Transport and Communications, University of Zilina, Univerzitná 8215/1, 01026 Zilina, Slovakia
Ionel Dănuț Savu: Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, 1 Calugareni Str., 220037 Drobeta-Turnu Severin, Romania

Sustainability, 2022, vol. 14, issue 7, 1-17

Abstract: The inland navigation sector makes a significant contribution to the growth of the global economy as well as to climate change due to pollutants emitted by diesel engines. NOx emissions are very high in port areas where, due to traffic, the ships run at idling regimes. Selective catalytic reduction (SCR) represents one of the most suitable technologies, in terms of cost effectiveness, but does not perform well if the temperature during vessel operation is lower than 180 °C. Microwave technology can support preheating of the ceramic core of SCR in order to increase the temperature towards the optimal interval for the best NOx reduction. Research has focused on coupling a magnetron head to a SCR device in order to evaluate to what extent the technology can meet the requirements of Stage V of the European Directive related to NOx emissions. Measurements of NOx emitted have been performed on engines with 603.5 kW nominal power and 1500 rpm that operate at a lower engine speed (700–1200 rpm) and output power (58–418 kW). The values recorded for emissions using microwave heating of ceramic core of SCR have decreased by 89% for a constant load of engine and idling engine speed.

Keywords: NOx emissions reduction; sustainability of retrofitted inland ships; microwave technology; selective catalytic reduction (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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