Numerical modeling of urea water based selective catalytic reduction for mitigation of NOx from transport sector

Baleta, Jakov and Vujanović, Milan and Pachler, Klaus and Duić, Neven (2015) Numerical modeling of urea water based selective catalytic reduction for mitigation of NOx from transport sector. = Numerical modeling of urea water based selective catalytic reduction for mitigation of NOx from transport sector. Journal of Cleaner Production, 88. pp. 280-288. ISSN 0959-6526. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2015). Točan broj autora: 4.

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Abstract

Various environmental regulations put ever stringent requirements on the automotive industry as a part of solution to the problem of global warming and climate change. In Europe, the upcoming Euro 6 standard that will come into force on September 1, 2014 demands reduction in NOx emissions from cars and vehicles intended for transport by more than 50 compared to the current standard. The urea-water-solution (UWS) based selective catalytic reduction (SCR) is currently the most promising method for fulfilling these requirements. In principle, the UWS spray is injected into a hot exhaust gas stream preceding the SCR catalyst and ammonia is generated through series of chemical reactions. Then, the generated ammonia acts in various deNOx reactions as a reductant. This paper investigates application of numerical modeling in the area of environmentally friendly technology of mobile SCR as a green engineering measure to reduce pollution in the road transport sector. Within this work the mathematical model of surface tension has been developed and compared to analytical expression for isothermal droplet spreading. Furthermore, this model was incorporated into the wall film module of the commercial computational fluid dynamics code FIRE for description of urea-water-solution injection into hot exhaust gases of diesel engine and compared to experimental data. Results of the conducted numerical study support the feasibility of commercial application of the presented model. © 2014 Elsevier Ltd. All rights reserved.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Ammonia; Automotive industry; Catalysts; Computational fluid dynamics; Diesel engines; Environmental regulations; Exhaust gases; Global warming; Metabolism; Numerical models; Reduction; Surface tension; Urea; Water injection; After-treatment; Commercial applications; Computational Fluid Dynamics codes; Environmentally-friendly technology; Global warming and climate changes; Road transport sectors; Wall-films; Water solutions; Selective catalytic reduction
Subjects: TECHNICAL SCIENCE
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2015)
Date Deposited: 07 Apr 2015 13:08
Last Modified: 06 Sep 2017 12:40
URI: http://repozitorij.fsb.hr/id/eprint/3506

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