Development of a high thermal efficiency heavy-duty engine
The U.S. Department of Energy Supertruck 2 program placed emphasis on development of heavy-duty trucks with high freight efficiency using commercially realizable technology suites. This paper describes the research and development process used to pursue a high thermal efficiency heavy-duty engine un...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Thermal Engineering |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fther.2024.1517404/full |
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| author | Erick Garcia Vassilis Triantopoulos Joseph Trzaska André L. Boehman Maxwell Taylor Jian Li |
| author_facet | Erick Garcia Vassilis Triantopoulos Joseph Trzaska André L. Boehman Maxwell Taylor Jian Li |
| author_sort | Erick Garcia |
| collection | DOAJ |
| description | The U.S. Department of Energy Supertruck 2 program placed emphasis on development of heavy-duty trucks with high freight efficiency using commercially realizable technology suites. This paper describes the research and development process used to pursue a high thermal efficiency heavy-duty engine under Supertruck 2. The team focused on over-expanded engine cycles and advanced piston designs. This paper describes how single-cylinder engine studies using thermal barrier coated pistons, high compression pistons, and over-expanded cycles informed the development process of a multi-cylinder demonstration engine that achieved 49.9% peak thermal efficiency. While tailoring the injection strategy and other control parameters optimized the demonstration engine, more than half of the efficiency improvement came from the over-expanded cycle. |
| format | Article |
| id | doaj-art-e2f09c99234a47f1b45f548e6fa43c26 |
| institution | Kabale University |
| issn | 2813-0456 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Thermal Engineering |
| spelling | doaj-art-e2f09c99234a47f1b45f548e6fa43c262025-02-10T10:31:13ZengFrontiers Media S.A.Frontiers in Thermal Engineering2813-04562025-02-01410.3389/fther.2024.15174041517404Development of a high thermal efficiency heavy-duty engineErick Garcia0Vassilis Triantopoulos1Joseph Trzaska2André L. Boehman3Maxwell Taylor4Jian Li5Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United StatesDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United StatesDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United StatesDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI, United StatesVolvo Technology of America, LLC, Greensboro, NC, United StatesVolvo Technology of America, LLC, Greensboro, NC, United StatesThe U.S. Department of Energy Supertruck 2 program placed emphasis on development of heavy-duty trucks with high freight efficiency using commercially realizable technology suites. This paper describes the research and development process used to pursue a high thermal efficiency heavy-duty engine under Supertruck 2. The team focused on over-expanded engine cycles and advanced piston designs. This paper describes how single-cylinder engine studies using thermal barrier coated pistons, high compression pistons, and over-expanded cycles informed the development process of a multi-cylinder demonstration engine that achieved 49.9% peak thermal efficiency. While tailoring the injection strategy and other control parameters optimized the demonstration engine, more than half of the efficiency improvement came from the over-expanded cycle.https://www.frontiersin.org/articles/10.3389/fther.2024.1517404/fullfreight efficiencydiesel enginethermal efficiencydiesel emissionsheavy-dutyMiller cycle |
| spellingShingle | Erick Garcia Vassilis Triantopoulos Joseph Trzaska André L. Boehman Maxwell Taylor Jian Li Development of a high thermal efficiency heavy-duty engine Frontiers in Thermal Engineering freight efficiency diesel engine thermal efficiency diesel emissions heavy-duty Miller cycle |
| title | Development of a high thermal efficiency heavy-duty engine |
| title_full | Development of a high thermal efficiency heavy-duty engine |
| title_fullStr | Development of a high thermal efficiency heavy-duty engine |
| title_full_unstemmed | Development of a high thermal efficiency heavy-duty engine |
| title_short | Development of a high thermal efficiency heavy-duty engine |
| title_sort | development of a high thermal efficiency heavy duty engine |
| topic | freight efficiency diesel engine thermal efficiency diesel emissions heavy-duty Miller cycle |
| url | https://www.frontiersin.org/articles/10.3389/fther.2024.1517404/full |
| work_keys_str_mv | AT erickgarcia developmentofahighthermalefficiencyheavydutyengine AT vassilistriantopoulos developmentofahighthermalefficiencyheavydutyengine AT josephtrzaska developmentofahighthermalefficiencyheavydutyengine AT andrelboehman developmentofahighthermalefficiencyheavydutyengine AT maxwelltaylor developmentofahighthermalefficiencyheavydutyengine AT jianli developmentofahighthermalefficiencyheavydutyengine |