This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effect of Oxygen Enrichment on the Performance and Emissions of I.D.I. Diesel Engines
Annotation ability available
Sector:
Language:
English
Abstract
The purpose of this study was to determine the effect of the partial pressure of O2 in the intake charge of an I.D.I. diesel engine on the various operating parameters and the exhaust emissions. The oxygen content in the intake was varied between 21% and 40% by volume. Engine performance and emissions were evaluated at constant engine speed and injection timing while fueling was varied. The research revealed that enriching the intake air with oxygen led to a large decrease in ignition delay and reduced combustion noise. The fuel economy, the power output and the exhaust temperature remained almost constant. HC and CO emissions decreased and smoke levels dropped substantially, while NOX emissions increased pro-rata with the O2 added.
Theoretical analysis using the Zel’dovich kinetics showed that nitric oxide emissions are sensitive to “mean NO-formation temperature” and the combustion duration associated with this temperature, and, to a lesser extent, the atomic oxygen concentration. The theoretical analysis revealed close correlation between calculated and measured NO emissions.
Recommended Content
Authors
Topic
Citation
Ghojel, J., Hilliard, J., and Levendis, J., "Effect of Oxygen Enrichment on the Performance and Emissions of I.D.I. Diesel Engines," SAE Technical Paper 830245, 1983, https://doi.org/10.4271/830245.Also In
References
- Browall W. Kimura S. “General Electric Technical Information,” May 1976
- Kimura S. G. “Private Communication to J. C. Hilliard,” March 1978
- Gardner P. J. “Private Communication to J. C. Hilliard,” June 1978
- Encyclopedia Britanica Under Rubrine 219 1959
- Kuznetsov E. V. “ Effect of O 2 Concentration on the Engine Process,” Papers on I.C.E. Academy of Sciences of U.S.S.R. 1956
- Karim G. A. Ward G. “The Examination of the Combustion Processes in a Compression Ignition Engine by Changing the Partial Pressure of Oxygen in the Intake Charge,” SAE Paper 680767 1968
- Kadota T. Hiroyasu H. “Soot Formation by Combustion of a Fuel Droplet in High Pressure Gaseous Environments,” Combustion and Flame 29 67 75 1977
- Hideyuki Tsunemoto Hiromi Ishitani “The Role of Oxygen in Intake and Exhaust on NO Emission, Smoke and BMEP of a Diesel Engine with EGR System,” SAE Paper 800030 1980
- Plee S. L. Ahmad T. Myers J. P. Siegla D. C. “Effects of Flame Temperature and Air-Fuel Mixing on Emission of Particulate Carbon from a Divided-Chamber Diesel Engine,” Particulate Carbon Formation during Combustion G.M. Symposium published by Plenum Siegla D. C. Smith G. W.
- Yu R. C. Shahed S. M. “Effects of Injection Timing and Exhaust Gas Recirculation on Emissions from a D.I. Diesel Engine,” SAE Paper 811234 1981
- Quader A. A. “Exhaust Emissions and Performance of a Spark-Ignition Engine Using Oxygen Enriched Intake Air,” Combustion Science and Technology 19 81 86 1978
- Quader A. A. “Why Intake Charge Dilution Decreases Nitrix Oxide from S.I. Engines,” SAE Paper 710009 , SAE Trans. 80 1971
- Wartinbee W. J. Jr. “Emissions Study of Oxygen Enriched Air,” SAE Paper 710606 , Montreal 1971
- Patterson D. J. Henein N. A. “Emissions from Combustion Engines and Their Control,” Ann Arbor Science Publishers 1972
- Lyn W. T. Valdmanis E. “The Effects of Physical Factors on Ignition Delay,” Proc. of Inst. of Mech. Engr. (A.D.), No. 181 34 1967
- De Corson S. M. Hussey C. E. Ambrose M. J. “Smokeless Combustion in Oil-Burning Gas Turbine,” paper presented at Combustion Institute, Central States Sec. 26 27 1968
- Glassman I. Combustion Academic Press N.Y. 1977
- Jamil Ghojel “Internal Combustion Engines,” II University of Damascus Press 1981
- Hilliard J. C. Wheeler R. W. “Nitrogen Dioxide in Engine Exhaust,” SAE Paper 790691 1971 SAE Transactions
- Smilis V. W. “Low Toxic Diesels,” Machinostroienye Leningrad 1972
- Hardenberg H. O. Hase F. W. “An Empirical Formula for Computing the Pressure Rise Delay of a Fuel from its Cetane Number and from the Relevant Parameters of Direct-Injection Diesel Engines,” Daimler-Benz AG Stuttgard, Germany SAE Paper 790493 1979
- Ohigashi S. Kuroda H. Nakajima Y. Hayashi Y. Sugihara K. “Heat Capacity Changes Predict Nitrogen Oxide Reductions by Exhaust Gas Recirculation,” SAE Paper 710010 1971
- Hilliard J. C. D. T. “Oxygen Enrichment of Intake Air,” Internal Report of the University of Michigan 1980
- Hilliard J. C. “Methods of Improving Combustion by Electrical Means,” University of London 1981
- Zel’dovich Y. B. Sadovnikov P. Y. Frank-Kamenitski D. A. “Oxidation of Nitrogen in Combustion,” Publication of the Academy of Sciences of USSR 1947
- Mullaney G. T. “Nitrogen Oxide Formation in Autoignition of Liquid Fuel Sprays,” Ind. and Eng. Chem. 52 6 1969 529 532
- Fenimore C. P. Jones G. W. “Nitric Oxide Decomposition at 2200-2400°K J. of Phy. Chem. 61 1957
- Khovakh M. et al. “Motor Vehicle Engines,” Mir Publications Moscow 1971
- El-Erian M. F. Wylie E. B. Bolt J. A. “Analysis and Control of Transient Flow in the Diesel Injection System, Part II - Design Results of Controlled After Injection,” SAE Paper 930663 June 18 22 1973
- Onyegegbu S. O. “The Effect of Secondary Injection on the Performance and Exhaust Emissions of an Open-Chamber Diesel Engine,” Ph.D. Thesis University of Michigan Ann Arbor 1976
- Henein N. A. “Combustion and Emission Formation in Fuel Sprays Injected in Swirling Air,” SAE Paper 710220 Jan. 11 15 1971
- Heinen N. A. Bolt J. A. “The Effect of Some Fuel and Engine Factors on Diesel Smoke,” SAE Paper 690557 Aug. 1969
- O’Sullivan D. A. “Description of Work of C. A. McAuliffe, et al. at UMIST C and EN,” Dec. 24 1978
- Milkovic M. “General Electric Report No. 77CRD087 April 1977
- Taylor F. T. “The Internal Combustion Engine in Theory and Practice,” The MIT Press 1968
- Ross M. E. Williams R. H. “Our Energy, REgaining Control,” McGraw-Hill Book Co. 1981
- Gray C. L. Von Hippel F. “The Fuel Economy of Light Vehicles,” Sci. America 244 5 May 1981
- Wilson R. P. Jr. Muir E. B. Pellicciotti F. A. “Emissions Study of a Single-Cylinder Diesel Engine,” SAE Paper No. 740123 1974