Title of the article



Demidov Alexey A., Cand. Techn. Sc. Project Director “Diesel Engine” SSC

Nadareyshvili Givi G., Cand. Techn. Sc. Head of the Department “Antitoxic and Noise Reduction Systems” SSC, This email address is being protected from spambots. You need JavaScript enabled to view it., FSUE “NAMI”, Moscow, Russia

Titchenko Andrey Yu. General Director LLC “NTC MSP”, Moscow, Russia

Year 2015 Issue 3 Pages 42-46
Type of article RAR Index UDK 621.436 Index BBK  

Reduction of toxic components in the exhaust gas of diesel engines to the level of the requirements of Euro 6 is a socially important and technically complex problem. The problem of optimal dosing of the urea solution and release free ammonia exception beyond neutralization system is very important when designing a system for selective catalytic reduction of nitrogen oxides of the diesel engine. In this study, the analysis of the test results of complex system of neutralization of the diesel engine and evaluated the possibility of measuring free ammonia nitrogen oxide sensors. Obtained by the sensor correlation of nitric oxide in presence of free ammonia with the influence of temperature. Implementing the results for the system controlling the supply of urea will simplify the structure of the system, exclude the additional oxidation catalyst (AMOX - catalyst) and make possible to use the sensor signals in the OBD.


diesel engine, exhaust, nitrogen oxides, neutralization system, urea, ammonia, hydrolysis, pyrolysis, oxidation, reduction, the catalyst

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  • Carslawa D.C., Rhys-Tyler G. New insights from comprehensive on-road measurements of NOx, NO2 and NH3 from vehicle emission remote sensing in London, UK. Atmospheric Environment, 2013, no. 81, pp. 339-347.
  • Galevko V.V., Nadarejshvili G.G., Judin S.I. Opredelenie parametrov dissipativnyh i kataliticheskih jelementov system obrabotki otrabotavshih gazov, neobhodimyh dlja ih proektirovanija metodom konechno-jelementnogo modelirovanija [Defining the parameters of dissipative and catalytic elements of exhaust gas treatment systems required for their design by finite element modeling]. Vektor nauki Tol’jattinskogo gosudarstvennogo universiteta [Vector of the Science of the Togliatti State University], 2013, no. 2(24).
  • Bonfils A. [et al.]. Closed-loop control of a SCR system usinga NOx sensor cross-sensitive to NH3. Preprints of the 8th IFAC Symposium on Advanced Control of Chemical Processes The International Federation of Automatic Control Furama Riverfront, Singapore, July 10-13, 2012.
  • Sch r C.M., Onder C.H., Geering H.P. Control of an SCR Catalytic Converter System for a Mobile Heavy-Duty Application. IEEE Transactions on Control Systems Technology, 2006, vol. 14, no. 4, pp. 641-653.
  • Schmitt J., Daniel B. Control of an Industrial SCR Catalyst Using Ceramic NOx Sensors. Olsen Energy and Power Engineering, 2011, no. 3, pр. 317-324.
  • Bahmutov S.V., Karpuhin K.E. “Chistye” avtomobili: napravlenija realizacii i dostigaemye rezul’taty [“Clean” cars: directions of implementation and achieved results]. Zhurnal avtomobil’nyh inzhenerov [Journal of automotive engineers], 2012, no. 6(77), pp. 51-54.
  • Zvonov V.A., Kozlov A.V., Terenchenko A.S. Ocenka zhiznennogo cikla, osnova sovershenstvovanija ATS [Life cycle assessment, basis of ATS updating]. Avtomobil. prom-st’ [Automotive industry], 2003, no. 11, p. 9.