A novel technology assessment chart for thermal efficiency improvement of IC engines
Analysis of internal combustion (IC) engine measurements for thermal efficiency improvement is a complex endeavor involving a number of competing interrelated factors. To simplify the process, a novel chart and its utilization are introduced. The proposed chart divides a potential indicated thermal efficiency improvement into the contribution factors of cooling system losses and cycle efficiency. Cycle efficiency is an ideal target or goal; how much in-cylinder net heat energy, less cooling losses and unburnt fuel losses from the lower heating value of injected fuel, can be effectively transformed into indicated work? This paper explains the definition and practical usage of this chart. Furthermore, several experimental case studies involving advanced engine technologies using the chart are illustrated to identify improvement pathways and their potential effects on thermal efficiency.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/14680874
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Supplemental Notes:
- © IMechE 2021.
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Authors:
- Uchida, Noboru
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0000-0002-7479-8911
- Publication Date: 2022-7
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1248-1263
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Serial:
- International Journal of Engine Research
- Volume: 23
- Issue Number: 7
- Publisher: Sage Publications, Incorporated
- ISSN: 1468-0874
- EISSN: 20413149
Subject/Index Terms
- TRT Terms: Cooling systems; Energy balance; Engine cycle; Internal combustion engines; Technology assessment; Thermal efficiency
- Subject Areas: Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01852184
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 21 2022 11:32AM