A stand-alone retrofit urea-SCR after-treatment system has been developed employing a pre-SCR NOx sensor, exhaust flow measurement, wire mesh mixer, clean-up catalyst, open-loop feed-forward control and stoichiometric NOx reduction logic. Demonstration of the urea-SCR system on a 1991 Detroit Diesel Corporation 12L engine in a West Virginia University (WVU) transient test cell achieved a 50% weighted NOx reduction and zero ammonia slip over the ICOMIA E5 marine cycle. The cost-effectiveness of the urea-SCR system was determined, including a $50 000 capital cost and $2705/t NOx reduced annually, which is consistent with Carl Moyer program estimates.
Demonstration and evaluation of a retrofit urea-SCR after-treatment system for NOx reduction in marine diesels
Journal of Marine Engineering & Technology ; 10 , 1 ; 3-13
2011-01-01
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
MARINE DIESELS - Operating Experience for Marine Diesels
Online Contents | 1998
Tema Archiv | 1990
Marine diesels with reduction gear sets
Engineering Index Backfile | 1943
|Marine diesels with reduction gear sets
Engineering Index Backfile | 1943
|Marine diesels with reduction gear sets
Engineering Index Backfile | 1943
|