The Performance of an Air-Cooled Diesel Engine with a Variable Cross-Section Dual-Channel Swirl Chamber

Lei Wu, Jun Fu (), Yi Ma and Donghe Xie
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Lei Wu: Department of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China
Jun Fu: Department of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China
Yi Ma: Department of Mechanical and Energy Engineering, Shaoyang University, Shaoyang 422000, China
Donghe Xie: College of Vehicle Engineering, Hunan Automotive Engineering Vocational College, Zhuzhou 412000, China

Energies, 2022, vol. 15, issue 19, 1-18

Abstract: In order to improve the performance of a mini-type air-cooled diesel engine in terms of the overall efficiency and engine emissions, a swirl chamber of a variable cross-section dual-channel model was developed. This study proposed nine turbulent swirl chambers with a variable cross-section for a dual-channel combustion solution, which applied a dual-channel cross-section to the insert between the original swirl chamber and the main chamber. Model-based design, simulation and experiments were applied as a feasible approach to address this issue to find out the influence of the dual-channel inclination angle and divergence angle on the swirl rate in the swirl chamber, the power and the emissions performance, including the fuel efficiency. By comparing the tests, the performance of the diesel engine with a variable cross-section dual-channel swirl chamber was superior to the original one with a single channel in terms of the swirl rate, fuel consumption rate and emissions.

Keywords: diesel engine; turbulence combustion; swirl chamber; variable cross-section; dual-channel (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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