This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Holistic Approach to Develop a Common Rail Single Cylinder Diesel Engine for Bharat Stage VI Emission Legislation
Technical Paper
2020-01-1357
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The upcoming Bharat Stage VI (BS VI) emission legislation has put enormous pressure on the future of small diesel engines which are widely used in the Indian market. The present work investigates the emission reduction potential of a common rail direct injection single cylinder diesel engine by adopting a holistic approach of lowering the compression ratio, boosting the intake air and down-speeding the engine. Experimental investigations were conducted across the entire operating map of a mass-production, light-duty diesel engine to examine the benefits of the proposed approach and the results are quantified for the modified Indian drive cycle (MIDC). By reducing the compression ratio from 18:1 to 14:1, the oxides of nitrogen (NOx) and soot emissions are reduced by 40% and 75% respectively. However, a significant penalty in fuel economy, unburned hydrocarbon (HC) and carbon monoxide (CO) emissions are observed with the reduced compression ratio. Intake air boosting using a mechanically driven supercharger could overcome the penalty in HC and CO emissions. However, the mechanical frictional losses of the supercharger resulted in a further penalty in the fuel economy. The reduced cylinder pressure due to lower compression ratio and the increased air availability due to intake air boosting could be utilized to improve the full-load performance of the engine by 28%. Further, the advantage of improved engine performance was utilized to down-speed the engine by optimizing the transmission gear ratios without compromising the acceleration performance of the vehicle. Overall, with this holistic approach, soot emission could be reduced by a significant margin of 83% whereas the NOx emission is reduced by 5.8%. Moreover, the HC and CO emissions could be reduced by 17.6% and 30.9% respectively. Furthermore, the fuel economy at the vehicle-level could be improved by 5.4% while improving the in-gear acceleration performance by 9%. Thus, the proposed approach is found to be extremely beneficial to develop small, light-duty diesel engines with compliance on future emission regulations. The reasons behind the observed benefits are explained in detail based on the measured in-cylinder pressure and calculated heat release data.
Authors
Topic
Citation
Vellandi, V., Ramesh, A., and Krishnasamy, A., "A Holistic Approach to Develop a Common Rail Single Cylinder Diesel Engine for Bharat Stage VI Emission Legislation," SAE Technical Paper 2020-01-1357, 2020, https://doi.org/10.4271/2020-01-1357.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 |
Also In
References
- The Gazette of India https://morth.nic.in/Motor-Vehicle-Legislation 16 9 2016
- Liu , Y. , Balaji , S. , Mojghan , N. , Penelope , M. , and Sougato , C. After-Treatment Systems to Meet China NS VI, India BS VI Regulation Limits SAE Technical Paper 2017-01-0941 2017 https://doi.org/10.4271/2017-01-0941
- Shah , S.D. and Kevin , H. Emission Control Options and Optimization for BSVI Heavy Duty Diesel Applications SAE Technical Paper 2017-26-0120 2017 https://doi.org/10.4271/2017-26-0120
- Gan , S. , Kiat Ng , H. , and Mun Pang , K. Homogeneous Charge Compression Ignition (HCCI) Combustion: Implementation and Effects on Pollutants in Direct Injection Diesel Engines Applied Energy 559 567 2011
- Benajus , J. , Pastor , J.V. , Garcia , A. , and Monsalve-Serrano , J. The Potential of RCCI Concept to Meet EURO VI NOx Limitation and Ultra-Low Soot Emissions in a Heavy-Duty Engine over the Whole Engine Map Fuel 052 961 2015
- Kalghatgi , G. , Risberg , P. , and Ångström , H. Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel SAE Technical Paper 2007-01-0006 2007 https://doi.org/10.4271/2007-01-0006
- Tuner , M. Review and Benchmarking of Alternative Fuels in Conventional and Advanced Engine Concepts with Emphasis on Efficiency, CO2, and Regulated Emissions SAE Technical Paper 2016-01-0882 2016 https://doi.org/10.4271/2016-01-0882
- Chen , S.K. Simultaneous Reduction of NOx and Particulate Emissions by Using Multiple Injections in a Small Diesel Engine SAE Technical Paper 2000-01-3084 2000 https://doi.org/10.4271/2000-01-3084
- Benajes J. , Molina S. and García J.M. Influence of Pre- and Post-Injection on the Performance and Pollutant Emissions in a HD Diesel Engine SAE Technical Paper 2001-01-0526 2001 https://doi.org/10.4271/2001-01-0526
- Liu , Y. and Reitz , R.D. Optimizing HSDI Diesel Combustion and Emissions Using Multiple Injection Strategies SAE Technical Paper 2005-01-0212 2005 https://doi.org/10.4271/2005-01-0212
- Prasad , B. , Sharma , C. , Anand , T. , and Ravikrishna , R. High Swirl-Inducing Piston Bowls in Small Diesel Engines for Emission Reduction Applied Energy 2355 2367 2011
- Jayashankara , B. and Ganesan , V. Effect of Fuel Injection Timing and Intake Pressure on the Performance of a DI Diesel Engine - A Parametric Study Using CFD Energy Conversion and Management 1835 1848 2010
- Suh , H.K. Investigations of Multiple Injection Strategies for the Improvement of Combustion and Exhaust Emissions Characteristics in a Low Compression Ratio (CR) Engine Applied Energy 88 5013 5019 2011
- Carlo , B. , Giovanni , A. , Giacomo , N.D. , and Chiara , G. Compression Ratio Influence on the Performance of an Advanced Single-Cylinder Diesel Engine Operating in Conventional and Low Temperature Combustion Mode SAE Technical Paper 2008-01-1678 2008 https://doi.org/10.4271/2008-01-1678
- MacMillan , D. , La Rocca , A. , Shayler , P. , Morris , T. et al. The Effect of Reducing Compression Ratio on the Work Output and Heat Release Characteristics of a DI Diesel under Cold Start Conditions SAE Int. J. Engines 1 794 803 2008 https://doi.org/10.4271/2008-01-1306
- MacMillan , D. , La Rocca , A. , Shayler , P.J. , Morris , T. et al. Investigating the Effects of Multiple Pilot Injections on Stability at Cold Idle for a Dl Diesel Engine SAE Int. J. Engines 370 380 2009 https://doi.org/10.4271/2009-01-0612
- Pacaud , P. , Perrin , H. , and Laget , O. Cold Start on Diesel Engine: Is Low Compression Ratio Compatible with Cold Start Requirements SAE Int. J. Engines 1 831 849 2008 https://doi.org/10.4271/2008-01-1310
- Heywood , J.B. Internal Combustion Engine Fundamentals Tata Mc Graw Hill Edition 2011