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- Title
The effects of bore-stroke ratio on effective release energy, residual gas, peak pressure rise and combustion duration of a V-twin engine.
- Authors
Khoa, Nguyen Xuan; Lim, Ock Teack
- Abstract
In our continual effort to develop an improved performance of a V-twin engine, we investigated the effective release energy, residual gas, peak pressure rise and combustion duration using experimental and simulation approaches. Through combined experimental and simulation methods, the results of the research show that the peak firing pressure rise, combustion duration, and effective release energy were strongly dependent on bore-stroke ratio, while the residual gas was less dependent on bore-stroke ratio. The increase of the bore-stroke ratio led to decrease residual gas ratio, effectively release energy, and increase ignition timing, combustion duration, and volume efficiency. At the bore-stroke ratio of 0.966, the peak firing pressure rise achieved its maximum value of 3.05 bar/deg. The HC and CO emissions were reduced but NOx was increased. At a bore-stroke ratio of 0.8, the maximum engine torque was improved by 7.68 % compared to the reference bore-stroke ratio of 1.06. The engine emitted the least NOx at a 0.88 bore-stroke ratio.
- Subjects
COMBUSTION; PRESSURE; TORQUE control; ENGINES; GASES; TORQUE; DUAL-fuel engines
- Publication
Journal of Mechanical Science & Technology, 2020, Vol 34, Issue 6, p2657
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-020-0539-z