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The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency
Bibliography: page 71.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Mechanical Engineering
2016
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| _version_ | 1867613321219276801 |
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| access_status_str | Open Access |
| author | Van Binsbergen, Peter J |
| author2 | Yates, Andrew |
| author_browse | Van Binsbergen, Peter J Yates, Andrew |
| author_facet | Yates, Andrew Van Binsbergen, Peter J |
| author_sort | Van Binsbergen, Peter J |
| collection | Thesis |
| description | Bibliography: page 71. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17351 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:34:14.045Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Mechanical Engineering |
| publisherStr | Department of Mechanical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17351 The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency Van Binsbergen, Peter J Yates, Andrew Mechanical Engineering Bibliography: page 71. This thesis is an investigation into the application of the hybrid Otto-Atkinson cycle, as a means of improving the part load fuel efficiency of spark-ignition engines. The primary objective of this thesis was to investigate the technical feasibility of the modified Atkinson cycle as a spark-ignition engine concept and thus to quantify the associated potential for greater fuel efficiency. The modified Atkinson cycle is a hybrid cycle which approximates the Otto cycle at full load but tends to emulate the Atkinson cycle at part load, and therefore it is referred to as the Otto-Atkinson cycle. In order to fulfil this objective, a single cylinder engine which operated on the Otto-Atkinson cycle, was designed and constructed. This unusual cycle was achieved by a crank linkage which allowed the power output to be controlled by varying the inlet and compression strokes rather than by the more conventional method of throttling the induced fuel-air mixture. Thus the pumping losses associated with throttled part-load operation are eliminated. Furthermore, the expansion stroke is always greater than the compression stroke, the difference being greatest at part loads. This results in a cycle which approximates the Atkinson cycle for part-load operation. A simplified thermodynamic simulation of the cycle was formulated. Theoretical predictions were made based on this simulation. 2016-02-29T12:03:34Z 2016-02-29T12:03:34Z 1992 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17351 eng application/pdf Department of Mechanical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Mechanical Engineering Van Binsbergen, Peter J The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| thesis_degree_str | Master's |
| title | The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| title_full | The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| title_fullStr | The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| title_full_unstemmed | The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| title_short | The design of a prototype Otto-Atkinson engine and evaluation of the part load fuel efficiency |
| title_sort | design of a prototype otto atkinson engine and evaluation of the part load fuel efficiency |
| topic | Mechanical Engineering |
| url | http://hdl.handle.net/11427/17351 |
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