This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Comparision of the Performance of Two Direct Injection Diesel Engines From a Second Law Perspective
Annotation ability available
Sector:
Language:
English
Abstract
This work reviews the differences in fuel economy between two direct injection diesel engine versions through the use of a First Law energy balance and a Second Law availability balance. Both experimental data and simulated results are used in the analysis. The use of an engine simulation allowed the important processes in each engine to be analyzed and a Second Law effectiveness calculated. The availability balances and effectiveness values were used to determine the effect of major engine components on the fuel economy. A comparison was also made with an ideal engine with selected perfect or reversible processes. The Second Law analysis was carried out using the thermodynamic property availability and a chemical and thermo-mechanical dead state appropriate for diesel engines. The results of the analysis show the sources of the irreversibilities and availability losses during the engine cycle and what engine components are responsible. It is also shown that Second Law effectiveness calculations provide a consistent framework for the comparison of process losses. The procedure can be used to compare process losses occurring within a given diesel engine, or to compare cycle or process losses occurring in different engines.
Recommended Content
Citation
Lipkea, W. and DeJoode, A., "A Comparision of the Performance of Two Direct Injection Diesel Engines From a Second Law Perspective," SAE Technical Paper 890824, 1989, https://doi.org/10.4271/890824.Also In
References
- Bruges E. A. “Available Energy and the Second Law Analysis,” Butterworths London 1959
- Patterson D. J. Van Wylen G. J. “A Digital Computer Simulation for Spark-Ignited Engine Cycles,” SAE, Progress in Technology Series 7 1964 82 91
- Flynn P. F. Hoag K. L. Kamel M. M. Primus R. J. “A New Perspective on Diesel Engine Evaluation based on Second Law Analysis,” SAE # 840032
- Van Gerpen J. H. Shapiro H. N. “Second Law Analysis of Diesel Engine Combustion,” Analysis and Design of Advanced Energy Systems: Computer-Aided Analysis and Design, American Society of Mechanical Engineers, Advanced Energy Systems Division 3-3 Moran M. J. et al New York, NY 1987 53 65
- Moran M. J. Availability Analysis: A Guide to Efficient Energy Use Chapter 7, Fuel Chemical Availability, and Chapter 8, Special Applications Prentice-Hall Engelwood Cliff, NJ 1982
- Moran M. J. Availability Analysis -A Guide to Efficient Energy Usage Prentice-Hall Engelwood Cliffs, NJ 1982 9 84 122 145
- Wepfer W. J. Gaggioli R. A. “Reference Datums for Available Energy” Thermodynamics-Second Law Analysis, American Chemical Society Symposium Series No. 122, R. A. Gaggioli, ed., ACS Washington, DC 1980 77 92
- Reistad G. M. Availability Concepts and Applications, Ph D. Dissertation University of Wisconsin Madison 1970
- Sussman M. V. “Steady-Flow Availability and the Standard Chemical Availability,” Energy, 5 1980 793 802
- Keenan J. H. “A Steam Chart for Second Law Analysis,” Mechanical Engineering 54 March 1932 195 204
- Keenan J. H. Thermodynamics Wiley New York, NY 1941
- Keenan J. H. “Availability and Irreversibility in Thermodynamics,” British Journal of Applied Physics 2 July 1951 183 192
- Bisio G. “On a General Statement for Exergy Efficiency,” Analysis and Design of Advanced Energy Systems: Fundamentals, Advanced Energy Systems Division American Society of Mechanical Engineers Moran M. J. Gaggioli R. A. 3-1 New York, NY 1987 45 50
- Olikara C. Borman G. L. “A Computer Program for Calculating Properties of Equilibrium Products with some Applications to I.C. Engines,” SAE # 750468
- Gordon S. McBride B. J. “Computer Program for Calculation of Complex Chemical Equilibrium Compositions, Rocket Performance, Incident and Reflected Shocks, and Chapman-Jouguet Detonations,” National Aeronautics and Space Administration Washington, DC 1971
- JANAF Thermochemical Tables Second National Bureau of Standards Washington, DC 1971
- Rodriguez L. “Calculation of Available-Energy Quantities,” Thermodynamics - Second Law Analysis, American Chemical Society Symposium Series No. 122 Gaggioli R. A. Washington, DC 1980 39 59
- Whiting T. M. Hewlitt R. W. Shea M. H. “New Deere 7.6L Engine,” SAE # 881284
- Borman G. L. “Mathematical Simulation of Internal Combustion Engine Processes and Performance Including Comparisons with Experiment,” Ph. D. Thesis, Mechanical Engineering Department University of Wisconsin 1964
- McAulay K. J. Wu T. Chen S. K. Borman G. L. Myers P. S. Uyehara O. A. “Development and Evaluation of the Simulation of Compression-Ignition Engine,” SAE # 650451
- Lipkea W. H. DeJoode A. D. “A Model of a Direct Injection Diesel Combustion System for Use in Cycle Simulation and Optimization Studies,” SAE Paper # 870573
- Lipkea W. H. DeJoode A. D. Christenson S. R. “The Relationship Between Nitric Oxide and Work as Influenced by Engine Operating Conditions and Combustion System Parameters for a Direct Injection Diesel Engine,” SAE Paper # 870269
- Rohsenow W. M. Choi H. Y. Heat, Mass, and Momentum Transfer Prentice-Hall, Inc. Engelwood Cliffs, NJ 1961 308 315