Efficiency evaluation of the DISC (direct-injection stratified charge), DHC (dilute homogeneous charge), and DI Diesel engines (direct-injection diesel)
The thermodynamic laws governing the Otto and diesel cycle engines and the possible approaches that might be taken to increase the delivered efficiency of the reciprocating piston engine are discussed. The generic aspects of current research are discussed and typical links between research and the technical barriers to the engines' development are shown. The advanced engines are discussed individually. After a brief description of each engine and its advantages, the major technical barriers to their development are discussed. Also included for each engine is a discussion of examples of the linkages between these barriers and current combustion and thermodynamic research. For each engine a list of questions is presented that have yet to be resolved and could not be resolved within the scope of this study. These questions partially indicate the limit to the state of knowledge regarding efficiency characteristics of the advanced engine concepts. The major technical barriers to each of the engines and their ranges of efficiency improvement are summarized.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5787466
- Report Number(s):
- PNL-4568; ON: DE83017910
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of engine conditions and injection timing on piston-top fuel films for stratified direct-injection spark-ignition operation using E30
High temperature materials for heavy duty diesel engines: Historical and future trends
Related Subjects
DIESEL ENGINES
EFFICIENCY
THERMODYNAMICS
SPARK IGNITION ENGINES
STRATIFIED CHARGE ENGINES
INSTITUTIONAL FACTORS
TECHNOLOGY ASSESSMENT
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
330101* - Internal Combustion Engines- Spark-Ignition
330102 - Internal Combustion Engines- Diesel