This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Optimum Heat Release for a Reciprocating Internal Combustion Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1987 by SAE International in United States
Annotation ability available
The problem of finding the cylinder pressure trace which maximizes engine efficiency is formulated in terras of cylinder pressure-dependent frictional, heat, and mass losses. The governing equations are recast into a form to which optimal control theory can be applied, and the pressure trace together with the corresponding optimum heat release profile which yield maximum efficiency are found. Results for optimum heat release are compared to results for both conventional rates of heat release and for the theoretical Otto cycle, and show that significant gains in efficiency are possible if the optimum heat release is employed.
CitationHoppie, L., Min, Y., Srinivasan, N., and Wu, S., "Optimum Heat Release for a Reciprocating Internal Combustion Engine," SAE Technical Paper 870572, 1987, https://doi.org/10.4271/870572.
- Taylor C. F. The internal Combustion Engine in Theory and Practice 2nd MIT Press 1978
- Obert E. F. Internal Combustion Engines and Air Pollution Harper & Row 1973
- Tateishi M. et al “New Combustion System of the IDI Diesel Engine,” SAE 841081
- Scharnweber D. H. Hoppie L. O. “Hypergolic Combustion in an Internal Combustion Engine,” SAE 850089
- Hoppie L. O. “The Influence of Initial Fuel Temperature on Ignition Delay,” SAE 820356
- Hsu B. D. “Heat Release, Cycle Efficiency and Maximum Cylinder Pressure in Diesel Engine-The Use of an Extended Air Cycle Analysis,” SAE 841054
- Rezeka S. F. Henein N. A. “A New Approach to Evaluate instantaneous Friction and its Components in internal Combustion Engines,” SAE 840179
- Weinstock R. Calculus of Variations McGraw-Hill New York 1952
- Bryson A. E. Ho Y. C. Applied Optimal Control Hemisphere Publishing Corp. Washington 1975