This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Using CONCHAS-Spray to Simulate the Process of a Methanol Fueled, Direct Injection Engine
Annotation ability available
Sector:
Language:
English
Abstract
The compression, combustion, and expansion portions of a two-stroke cycle, direct methanol injection engine was simulated using the CONCHAS-Spray computer code. The input and comparison data was supplied from a Detroit Diesel Allison production engine operating on methanol fuel. Calculated values of both cranking and firing chamber pressure were lower than reported from the engine. The injected fuel did not entirely evaporate which caused regions of fuel impinging on the cylinder walls and piston face. The simulation did predict the formation and accumulation of formaldehyde in the regions of unburned fuel and is consistent with the theory that the formaldehyde does not readily decompose at low temperatures and forms from the incomplete oxidation of the fuel.
Authors
Topic
Citation
Wasberg, J. and Evers, L., "Using CONCHAS-Spray to Simulate the Process of a Methanol Fueled, Direct Injection Engine," SAE Technical Paper 861166, 1986, https://doi.org/10.4271/861166.Also In
References
- Brinkman Norman D. “Effect of Compression Ratio on Exhaust Emissions and Performance of a Methanol-Fueled Single-Cylinder Engine” SAE Paper 770791 presented at SAE Passenger Car Meeting Detroit, MI 9 77
- Hagen David L. “Methanol as a Fuel: A Review with Bibliography” SAE Paper 770792 presented at SAE Passenger Car Meeting Detroit, Michigan September 1977
- Committee on Aldehydes, Board on Toxicology and Environmental Health Hazards. Assembly of Life Sciences, and the National Research Council “Aldehyde Concentration, Emission, and Environmental Generation and Transformation Reactions” Formaldehydes and Other Aldehydes National Academy Press Washington, D.C. 1981 36 131
- Hilden David L. Park Fred B. “A Single-Cylinder Engine Study of Methanol Fuel - Emphasis on Organic Emissions” SAE Paper 760378 from SAE PT-19 Alcohols as Motor Fuels February 1976 147 160
- Committee on Aldehydes “Health Effects of Formaldehyde” 175 220
- Proceedings of General Motors Research Laboratories Symposium Combustion Modelling in Reciprocating Engines Mattavi J.N. Amann) C.A. Plenum Press 1980
- Cloutman L.D. Diskowicz J.K. Ramshaw J.D. Amsden A.A. “CONCHAS-Spray: A Computer Code for Reactive Flows With Fuel Sprays” Los Alamos National Laboratories Report LA9294-MS May 1982
- Toepel R.R. Bennethum J.E. Heruth R.E. “Development of Detroit Diesel Allison 6V-92TA Methanol Fueled Coach Engine” SAE Paper 831744 presented at SAE Fuels and Lubricants Meeting San Francisco, CA October-November 1983
- Chiu W.S. Shaded S.M. Lyn W.T. “A Transient Spray Mixing Model for Diesel Combustion” SAE Paper 760128 presented at SAE Automotive Engineering Congress and Exposition Detroit, Michigan February 1976
- Glassman Irvin “The Rates of Reactions and Their Temperature Dependency” Combustion Academic Press New York 1977 16 20
- Wesbrook Charles K. Dryer Frederick L. “A Comprehensive Mechanism for Methanol Oxidation” Combustion Science and Technology 20 1979 125 140
- Westbrook Charles K. Dryer Frederick L. Schug P. “A Comprehensive Mechanism for the Pyrolysis and Oxidation of Ethylene” Nineteenth Symposium (International) on Combustion The Combustion Institute 1982 153 166