This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of an Intake Runner of a CI Engine for Performance Enhancement and Emission Reductions Due to Variations in Air Flow Pattern within the Runner
Technical Paper
2016-01-1015
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Recent scenario of fossil fuel depletion as well as rising emission levels has witnessed an ever aggravating trend for decades. The solution to the problems has been addressed by investments and research in the field of fuels; such as the use of cleaner fuels involving biodiesel, alcohol blends, hydrogen and electric drivelines, as well as improvement in traditional technologies such as variable geometry systems, VVT load control strategies etc. The developments have highlighted the enormous potential present in such systems in terms of maximizing engine efficiency and emission reductions. The present paper aims at designing and implementing an intake runner system for a CI engine capable of providing flexibility with variations in operating conditions. Primarily, the design aims at altering the air flow phenomenon within the primary intake of the engine by inducing swirl in the runner through a secondary runner. Existing research that provides a baseline for this paper has highlighted the improvements in BSFC, UHC and CO emissions by employing modifications in the intake manifold on single as well as multi-cylinder engines. For the testing phase, a single cylinder VCR diesel engine was selected to simplify the designing and implementation process. The designed intake runner conflated two control strategies: variation in the effective length of intake air travel and variation in the entry angle from the secondary to the primary runner which alters the swirl within the runner. Since the engine considered was a constant speed CI engine, only the variations in entry angle have been presented with corresponding impact on the performance and emission parameters. The designing of the runner has been sub-divided into various steps. Firstly, flow visualization and design optimizations have been performed using ANSYS CFX as the analysis software and Solidworks as the designing software. The indirect validation of the CFX results was done by employing a steady state test rig for the manifold with constant pressure drop across the inlet and outlet. The final stage involved implementing the runner on a constant speed VCR engine operated at a constant compression ratio for the testing. The results are presented as a comparison of performance and emission parameters such as brake torque, power, fuel consumption, NOx, CO, CO2 and UHC for the baseline diesel engine and a specific entry angle for the designed runner. The design, though presented in the current paper as a modification for single cylinder engine, is capable of being employed on multi-cylinder engines if modified accordingly.
Recommended Content
Authors
Topic
Citation
Singh, S., Asthana, S., and Kumar, N., "Development of an Intake Runner of a CI Engine for Performance Enhancement and Emission Reductions Due to Variations in Air Flow Pattern within the Runner," SAE Technical Paper 2016-01-1015, 2016, https://doi.org/10.4271/2016-01-1015.Also In
References
- Hammerle , R. , Ketcher , D. , Horrocks , R. , Lepperhoff , G. et al. Emissions from Current Diesel Vehicles SAE Technical Paper 942043 1994 10.4271/942043
- Seagrave , J. , Mauderly , J. , Zielinska , B. , Sagebiel , J. et al. Comparative Toxicity of Gasoline and Diesel Engine Emissions SAE Technical Paper 2000-01-2214 2000 10.4271/2000-01-2214
- The outlook for energy : A view to 2040 http://cdn.exxonmobil.com/~/media/Reports/Outlook%20For%20Energy/2014/2014-Outlook-for-Energy.pdf
- Kumar , N. , Bansal , S. , Vibhanshu , V. , and Singh , A. Utilization of Blends of Jatropha Oil and N-Butanol in a Naturally Aspirated Compression Ignition Engine SAE Technical Paper 2013-01-2684 2013 10.4271/2013-01-2684
- Singh , A. , Sharma , A. , and Kumar , N. Performance and Emission Analysis of a CI Engine in Dual Mode with CNG and Karanja Oil Methyl Ester SAE Technical Paper 2014-01-2327 2014 10.4271/2014-01-2327
- Kumar , V. , Kumar , N. , Tomar , V. , and Kalsi , G. Comparative Study of Performance and Emission Characteristics of Fish Oil and Calophyllum Inophyllum Oil Bio-Diesel in a Light Duty Diesel Engine SAE Technical Paper 2014-01-2773 2014 10.4271/2014-01-2773
- Heywood , J.B. Internal Combustion Engine Fundamentals McGraw-Hill 1988
- Engineering Fundamentals of the Internal Combustion Engine Pulkrabek Willard W. Prentice Hall 1997 0135708540 9780135708545
- Takeyuki Kamimoto , Haruki Kobayashi Combustion processes in diesel engines, Progress in Energy and Combustion Science 17 2 1991 163 189 0360-1285 http://dx.doi.org/10.1016/0360-1285(91)90019-J
- Bari S. , Idris S aad CFD modelling of the effect of guide vane swirl and tumble device to generate better in-cylinder air flow in a CI engine fuelled by biodiesel Computers & Fluids 84 15 September 2013 262 269 0045-7930 http://dx.doi.org/10.1016/j.compfluid.2013.06.011
- Bari S. , Idris Saad Effect of guide vane height on the performance and emissions of a compression ignition (CI) engine run with biodiesel through simulation and experiment Applied Energy 136 31 December 2014 431 444 0306-2619 http://dx.doi.org/10.1016/j.apenergy.2014.09.051
- Bari S. , Idris Saad Performance and emissions of a compression ignition (CI) engine run with biodiesel using guide vanes at varied vane angles Fuel 143 1 March 2015 217 228 0016-2361 http://dx.doi.org/10.1016/j.fuel.2014.11.050
- Idris Saad , Bari S. , Hossain S.N. In-Cylinder Air Flow Characteristics Generated by Guide Vane Swirl and Tumble Device to Improve Air-Fuel Mixing in Diesel Engine Using Biodiesel Procedia Engineering 56 2013 363 368 1877-7058 http://dx.doi.org/10.1016/j.proeng.2013.03.133
- Idris Saad , Saiful Bari Guide Vane Swirl and Tumble Device to Improve in-cylinder Air Flow of CI Engine Using Vegetable Oil Procedia Engineering 90 2014 425 430 1877-7058 http://dx.doi.org/10.1016/j.proeng.2014.11.872
- Miles , P. The Influence of Swirl on HSDI Diesel Combustion at Moderate Speed and Load SAE Technical Paper 2000-01-1829 2000 10.4271/2000-01-1829
- Shuisheng Jiang , Siwei Zhu , Hua Wen , Shuping Huang Parameter Analysis of Diesel Helical Intake Port Numerical Design Energy Procedia 16 2012 558 563 1876-6102 http://dx.doi.org/10.1016/j.egypro.2012.01.090
- Payri F. , Benajes J. , Margot X. , Gil A. CFD modeling of the incylinder flow in direct-injection Diesel engines Computers & Fluids 33 8 September 2004 995 1021 0045-7930 http://dx.doi.org/10.1016/j.compfluid.2003.09.003
- LiWang Su , XiangRong Li , Zheng Zhang , FuShui Liu Numerical analysis on the combustion and emission characteristics of forced swirl combustion system for DI diesel engines Energy Conversion and Management 86 October 2014 20 27 0196-8904 http://dx.doi.org/10.1016/j.enconman.2014.05.023
- Shengli Wei , Feihu Wang , Xianyin Leng , Xin Liu , Kunpeng Ji Numerical analysis on the effect of swirl ratios on swirl chamber combustion system of DI diesel engines Energy Conversion and Management 75 November 2013 184 190 0196-8904 http://dx.doi.org/10.1016/j.enconman.2013.05.044
- Effect of Swirl Induction by Internally Threaded Inlet Manifolds on Exhaust Emissions of Single Cylinder (DI) Diesel Engine Dr. Pankaj N.Shrirao , Dr. Rajeshkumar Sambhe U. International Journal of Science and Research (IJSR) 2319-7064
- Internal combustion engine with rifled intake and exhaust manifolds
- Intake manifold for internal combustion engines having a sudden enlargement in the flow path of each runner
- Green A.S , Moumtzis T Case study: use of inlet manifold design techniques for combustion applications Applied Thermal Engineering 22 13 September 2002 1519 1527 1359-4311 http://dx.doi.org/10.1016/S1359-4311(02)00070-4
- Intake manifold having runners with variable cross sectional area
- Sulaiman S.A , and Murad S. H. M. , and Ibrahim I. and Abdul Karim Z. A. 2010 Study Of Flow In Air-Intake System For A Single-Cylinder Go-Kart Engine International Journal of Automotive and Mechanical Engineering (IJAME) 1 91 104 1985-9325 2180-1606
- Ceviz M.A. , Akın M. Design of a new SI engine intake manifold with variable length plenum Energy Conversion and Management 51 11 November 2010 2239 2244 0196-8904 http://dx.doi.org/10.1016/j.enconman.2010.03.018
- Andrew Chen , Sparrow Ephraim M. Turbulence modeling for flow in a distribution manifold International Journal of Heat and Mass Transfer 52 5-6 February 2009 1573 1581 0017-9310 http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.08.006
- Sangwook Han , Jaeheun Kim , Choongsik Bae Effect of air-fuel mixing quality on characteristics of conventional and low temperature diesel combustion Applied Energy 119 15 April 2014 454 466 0306-2619 http://dx.doi.org/10.1016/j.apenergy.2013.12.045
- Kei Miwa , Takuji Ishiyama NO reduction mechanism in a fuel-rich diesel burning zone with swirl JSAE Review 19 2 1 April 1998 151 153 0389-4304 http://dx.doi.org/10.1016/S0389-4304(97)00062-3
- Motohiro Shinzawa , Yoshiki Sekiya , Masaaki Saito Effects of combustion improvement on reducing NOx emissions of IDI diesel engines JSAE Review 15 2 April 1994 141 147 0389-4304
- Tomohiko Furuhata , Shunsuke Amano , Kousaku Yotoriyama , Masataka Arai Development of can-type low NOx combustor for micro gas turbine (fundamental characteristics in a primary combustion zone with upward swirl) Fuel 86 15 October 2007 2463 2474 0016-2361 http://dx.doi.org/10.1016/j.fuel.2007.01.005