Abstract
Over the last decade, selective catalytic reduction (SCR) mechanism has proven to be a well-established commercial technique for control of NOx emission, especially for diesel engines, which is applicable for wide range of operating conditions in various application segments such as light duty, midrange, heavy duty, and high horsepower. Hence nowadays, a significant amount of efforts is put forward for ensuring robust operation of SCR system in the extreme situation of design parametric space. In order to excel in this area, various options/concepts, critical parameter sensitivity, and optimization studies are assessed using numerical simulation tools as they offer a quick qualitative solution to meet tight customer timelines. The current trend is to meet the performance targets by making these designs compact and fastest delivery of the product in the market. Analysis Led design (ALD) provides the opportunity to predict the performance of the system at the concept phase and remove noises at the early phase of the product cycle. With time, ALD has also evolved to such an extent that the need for physical testing has been reduced significantly. In this chapter, we will understand the role of after-treatment (AT) system in industries and how ALD is supporting in making the AT more effective in terms of performance and cost. We will also go through some analysis and show some case studies and understand how they solve the real-world problems.
Keywords
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- ANR:
-
Ammonia NOx Ratio
- ALD:
-
Analysis Lead Design
- CES:
-
Cummins Emission Solutions
- CFD:
-
Computational Fluid Dynamics
- CTR:
-
Cummins Technical Report
- DEF:
-
Diesel Exhaust Fluid
- ESC:
-
European Stationary Cycle
- FEA:
-
Finite Element Analysis
- LES:
-
Large Eddy Simulations
- OBD:
-
On-board Diagnostics
- PDF:
-
Probability Density Function
- PID:
-
Proportional Integral Derivative
- SDI:
-
Species Distribution Index
- UI:
-
Uniformity Index
References
Muzio JE (2001) Twenty-five years of SCR evolution: implications for US application and operation. EPA, DOE, EPRI and AWMA Combined Power, Chicago
DoD guide to Integrated product and process development (version 1) (1995)
Munnannur A, Liu Z (2010) Development and validation of a predictive model for DEF injection and urea decomposition in mobile SCR De-NOx systems. SAE Technical Paper 2010-01-0889
FLUENT A (n.d.) ANSYS fluent theory guide
McKinley T, Alleyne A, Lee C (2010) Mixture non-uniformity in SCR: modeling and uniformity index requirements for steady-state and transient operation. SAE Int J Fuels Lubr 3(1):486–499
Kalyankar A, Munnannur A, Liu Z (2015) Predictive modeling of impact of ANR non-uniformity on transient SCR system DeNOx performance. SAE Technical Paper 2015-01-1055
Acknowledgements
Special thanks to all folks mentioned below for continuous improvement of methods and processes in area of ALD for After-treatment Industry. Excerpt of their contribution has been selected for building this chapter.
Achuth Munnannur—Tech Advisor, CES US
Apoorv Kalyankar—Sr. Engineer, CES US
Kishor Deshmukh—Technical specialist, CES CTCI
Suraj Khalate—Technical specialist, CES CTCI
PrachiChirputkar—MS Intern (Friedrich-Alexander University, Erlangen-Nuremberg).
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Khot, A., Tripathi, N. (2020). Role of Analysis Led Design Approach in Diesel Engine-Based After-Treatment System. In: Gupta, A., De, A., Aggarwal, S., Kushari, A., Runchal, A. (eds) Innovations in Sustainable Energy and Cleaner Environment. Green Energy and Technology. Springer, Singapore. https://doi.org/10.1007/978-981-13-9012-8_13
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DOI: https://doi.org/10.1007/978-981-13-9012-8_13
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